GB2201410A - Mix for producing chemically resistant concrete - Google Patents
Mix for producing chemically resistant concrete Download PDFInfo
- Publication number
- GB2201410A GB2201410A GB08704558A GB8704558A GB2201410A GB 2201410 A GB2201410 A GB 2201410A GB 08704558 A GB08704558 A GB 08704558A GB 8704558 A GB8704558 A GB 8704558A GB 2201410 A GB2201410 A GB 2201410A
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- United Kingdom
- Prior art keywords
- mix
- mass
- acid
- perlite
- glass
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 128
- 239000004567 concrete Substances 0.000 title claims abstract description 74
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 69
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 43
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 32
- 239000010451 perlite Substances 0.000 claims abstract description 31
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 31
- 235000019362 perlite Nutrition 0.000 claims abstract description 30
- 229910052622 kaolinite Inorganic materials 0.000 claims abstract description 26
- 230000004048 modification Effects 0.000 claims abstract description 26
- 238000012986 modification Methods 0.000 claims abstract description 26
- 239000002253 acid Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005332 obsidian Substances 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000003513 alkali Substances 0.000 claims description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 4
- 235000006679 Mentha X verticillata Nutrition 0.000 claims 1
- 235000002899 Mentha suaveolens Nutrition 0.000 claims 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 claims 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims 1
- 239000006004 Quartz sand Substances 0.000 abstract description 17
- 239000010438 granite Substances 0.000 abstract description 6
- 239000011044 quartzite Substances 0.000 abstract description 6
- 238000010335 hydrothermal treatment Methods 0.000 description 12
- 239000004576 sand Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000008240 homogeneous mixture Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 8
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000002301 combined effect Effects 0.000 description 3
- 239000010433 feldspar Substances 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 240000005428 Pistacia lentiscus Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- -1 neutral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 239000005335 volcanic glass Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/128—Heterocyclic nitrogen compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00439—Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
A mix for producing a chemically resistant concrete comprises, per cent by mass: liquid glass 8 to 18 a finely divided volcanic acid water-containing glass e.g. perlite, obsidian or vitrophyre 30 to 40 a modifying additive such as silicon dioxide of a crystalline modification 1 to 6 and/or kaolinite of the pelitic structure 1 to 5 and/or melaminocyanurate 0.2 to 1.0 an alkali-acid-resistant aggregate e.g. quartz sand, granite, quartzite, diabase or andesite the balance o
Description
MIX FOR PRODUCING CItEMICALLY RESISTANT CONCRETE
The present invention relates to construction materials and, more particularly, to a mix for a chemically resistant concrete based on liquid glass. Concretes produced from the mix of this invention will be useful in the manufacture of building and process structures operating under conditions of strongly aggressive liquid or gaseous media at enterprises of ferrous and non-ferrous metallurgy, chemical industry.
Known in the art are mixes containing liquid glass, fine quartz sand, perlite and a curing agent such as fluosilicates employed in the preparation of mortars, compounds and mastics intended for corrosion-protective coatings. These coatings have a structure with a low thermodynamic stability and, hence, they feature a high water-absorption, low water-resistance, a limited resistance in aggressive media.
The curing agent employed in the mixes has a high toxicity which brings about difficulties in their preparation.
Known in the art is a mix for the proauction of an acid-resistant. concrete (cf, USSR Inventor's Certificate No. 306093, Int.Cl.3 C 04 B 19/04) containing liquid glass, perlite of fractions of less than 0.14
and 0.14-5 mm, andesite rubbles at the following proportions of the components per cent by mass: - liquid glass ( S = 1.34 g/cm3) 15 to 25 - perlite of the fraction of less
than 0.14 mm 10 to 20 - perlite of the fraction of O.14-5mm 15 to 25 - andesite rubbles of fractions of
above 5 mm the balance.
The concrete produced from this mix has a compression strength of 28.0-29.0 MPa, bending strength - 9.6-11.0 MPa. The resistance of this concrete determined by the mass alteration during boiling in a 40% sulphuric acid for 1.5 hour is 96.3-97.2%.
In addition to a high acid-resistance.this concrete has a high-pore structure and has a low mechanical strength and a low water-resistance.
Also known in the art is a mix for the proouction of a silicate concrete (cf. USSR Inventors Certificate
No. 513955 Int.Cl.3 C 04 B 19/04) containing, per cent by mass: - liquid glass 15 to 25 - ground granulated slag 20 to 30 - aggregate 40 to 55 - finely divided quartz sand with a spe
cific surface area of 2,000-2,500 cm2/g the balance.
The durability of the concrete produced from this mix is as high as 80-100 MPa due to incorporation of finely divided quartz sand which comprises an active portion of the slag-glass binding agent. At the same time, the concrete produced from this mix features a high acid-permeability.
Known in the art is a mix for the production of a chemically resistant concrete (cf. USSR Inventor's Cer tificate No. 882965, Int,C1,3 C 04 B 19/04) having the following composition, per cent by mass: - liquid glass 12 to 13 - finely divided aggregate 33 to 34 - acid-alkali-resistant aggregate the balance.
The concrete produced from this mix has a low level of a long-time durability at a combined effect of a mechanical load and of an aggressive medium, a high acidpermeability and water-absorption and a low water-resist- ance.
It is an object of the present invention to provide a mix for the production of a chemically resistant concrete ensuring, thereto, a high level of a long-time durability at a combined effect of a mechanical load and an aggressive medium and a low acid-permeability, as well as a high water-resistance.
This object is accomplished by the provision of a mix for the production of a chemically-resistant concrete comprising liquid glass, finely divided volcanic acid water-containing glass, an acid-alkali-resistant aggregate, which, according to the present invention, incorporates silicon dioxide of a crystalline modification and/or kaolinite of the pelitic structure, and/or melaminocyanurate at the following proportions of the components, per cent by mass: - liquid glass 8 to 18 - finely divided volcanic acid water
containing glass 30 to 40 - silicon dioxide of a crystalline
modification 1 to 6 and/or kaolinite of the pelitic struc
ture 1 to 5 and/or melaminocyanurate 0.2 to 1.0 - acid-alkali-resistant aggregate the balance.
The incorporation of one of the above-specified modifying agents or mixtures thereof into the mix re suIts in a considerable improvement of physico-mechanical properties of the resulting chemically resistant concrete which enhance the efficiency of its applications in construction and process structures to be operated under high mechanical loads in aggressive media.
Thus, this concrete, when compared to the known one (cf. USSR Inventor's Certificate No. 882965) has the following advantages:
- a higher level of a long-time durability at a combined effect of a mechanical load and an aggressive medium, by 25-45%; - lowered acid-permeability by 60-64%;
- lowered water-absorption by 28-30%;
- increased waterresiatance by 10-15%.
To reduce acid-permeability of the chemically re sistant concrete, to impart a high elasticity modulus thereto along with a high level of a long-time durability under air-dry conditions and upon the effect of acids, it is advisable that the mixture have the following composition, per cent by mass: - liquid glass 12 to 15 - finely divided water-containing acid
volcanic glass - obsidian 35 to 40 - silicon dioxide of a crystalline
modification 1 to 6 - an acid-alkali-resistant aggregate the balance.
To ensure a high level of a long-time durability of the chemically resistant concrete in water it is preferable that the mix have the following composition, per cent by mass: - liquid glass 8 to 12 - finely divided volcanic acid water-con
taining glass- perlite 30 to 35 - kaolinite of the pelitic structure 1 to 5 - an acid-alkali-resistant aggregate the balance.
To employ the chemically resistant concrete in agaggressive media of various types (acid, neutral, alkali), it is advisable that the mix have the following composition, per cent by mass: - liquid glass 15 to 18 - perlite 32 to 34 - silicon dioxide of a crystalline
modification 2 to 4 - kaolinite of the pelitic structure 2 to 4 - acid-resistant aggregate the balance.
The highest characteristics of water-absorption and water-resistance of the chemically resistant concrete according to the present invention are ensured owing to introduction, into the mix composition, of 0.4-0.6% by mass of melaminocyanurate.
The mix according to the present invention for the production of a chemically resistant concrete of the above-mentioned formulations is prepared in the following manner.
A mix is prepared from dry components by intermixing an acid-alkali-resistant aggregate, a finely divided acid volcanic water-containing glass and modifying agents such as silicon dioxide of a crystalline structure and/or kaolinite of the pelitic structure.
To resulting mix is combined and intermixed with liquid glass and a modifying additive - melaminocyanurate till the formation of a homogeneous mix for the production of a chemically resistant concrete.
The quantitative selection of the components is defined by the predetermined physico-mechanical characteristics of the chemically resistant concrete to be produced.
Depending on requirements imposed on the concrete upon its operation in diverse aggressive media, the mix can incorporate either one of the above-specified modifying additives or a mixture thereof in different combinations.
The thus-prepared mix is charged into moulds, densified and subjected to a hydrothermal treatment under a pressure of from 0.6 to 1.2 MPa for a period of from 6 to 10 hours.
As the acid-alkali-resistant aggregate use can be made of quartz sand and rubble of granite, quartzite, diabase and andesite origin.
As the acid volcanic water-containing glass use can be made of perlite, obsidian, vitrophyre.
A positive effect is ensured upon introduction, into the mix, of modifying additives in the following amounts, per cent by mass: - silicon dioxide of a crystalline modification 1 to 6 - kaolinite of the pelitic structure 1 to 5 - me laminocyanurate 0.2 to 1.0.
The incorporation, into the mix formula, of silicon dioxide in the above-specified amounts contributes to the formation of a more organized structure of the type of feldspars in the hardened concrete. At a content of silicon dioxide in the mix in an amount of below 1% by mass, in addition to feldspars mordenite is also formed which results in a lowered level of a longtime durability of concrete in aggressive media.
The introduction of silicon dioxide into the mix in an amount of above 6% by mass is inexpedient, since it does not change the structure of the concrete and acts as an inert aggregate.
In the system liquid glass-perlite (obsidian, vitrophyre) a considerable amount of a free alkali is present in addition to water-resistant minerals of the feldspar type.
Kaolinite of the pelitic structure introduced into the mix in an amount ranging from 1 to 5% by mass reacts with this alkali with the formation of water-insoluble aluminosilicates which are responsible, when present in the concrete, for a higher level of its long-time durability in water and in an alkali.
The effect of melaminocyanurate on the concrete structure is defined by its hydrophobic action. When introduced into the mix in an amount of less than 0.2% by mass, the hydrophobic effect is exhibited insignificantly, the concrete has a high water-absorption and a limited water-resistance, while in an amount of over 1% by mass it does not result in a further improvement of physico-mechanical characteristics of the concrete.
The elasticity modulus, as well as compression strength and tensile strength of a concrete produced from the above-specified mix were determined following standard testing procedures.
The resistance factor of the concrete according to the present invention is determined as a ratio of the ultimate compression strength of samples after 36 hours of boiling in a corresponding medium to the ultimate compression strength of similar samples stored under air-dry conditions.
The level of a long-time durability of a concrete in a corresponding aggressive medium shows the capability of the concrete to withstand long-time applica tion of loads.
The level of a long-time durability of the concrete is determined for all of its compositions according to the procedure described hereinbelow.
The durability of a concrete sample is determined in a press upon a short-time increasing load up to breakdown (for example, R c 100 MPa, wherein R is an ultimate strength) then the sample is compressed to a load close to the ultimate one (for example, z s 0.95 R, i.e. R = 95 MPa, wherein ç is a stress in the concrete upon compression) and the time from the moment of the sample loading till its breakdown is recorded. Then the level of loading for new samples is lowered to 5 = 0.90 R, s = 0.85R, G(- 0.80 R and so on; in doing so, for each level of loading the time of the concrete existence under load is recorded.The thusobtained data are used for plotting a curve, in the system of coordinates "level of loading vs. time", showing the time of existence of the concrete under a particular load. From the resulting plot the level of loading against the breaking load is determined for a sample by extrapolation, which level can be withstood by the sample for an indefinite period of time. This level of loading serves as the level of a long-time durability of the concrete.
In the determination of the level of a long-time durability of the concrete in aggressive media, samples of the concrete have been preliminarily subjected to boiling for 36 hours and residence in appropriate aggressive media till an ultimate saturation. The residence of the concrete samples under load, as it has been described hereinbefore, is also arranged under conditions of a continuous effect of aggressive media.
Examples of Carrying Out the Invention
Given hereinbelow are specific examples illustrating the production of a chemically resistant concrete from the mix according to the present invention of various compositions.
Example 1
A mix is prepared from dry components by intermixing 920 kg of obsidian, 460 kg of quartz sand, 506 kg of granite rubble, 138 kg of silicon dioxide of a crystalline modification. The resulting mix is intermixed with liquid glass taken in the amount of 276 kg.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 12 - obsidian 40 - silicon dioxide of a crystalline
modification 6 - rubbles 22 - sand 20.
The thus-produced concrete in the form of cubic samples is subjected to physico-mechanical tests; the results obtained are shown in the Table herein below.
Example 2
A mix is prepared from dry components bg intermixing 805 kg of obsidian, 575 keg quartz sand, 552 kg of granite rubbles1 23 kg of silicon dioxide of a crystalline modification. The resulting mix is combined with liquid glass taken in the amount of 345 kg till a fully homogeneous mixture is produced.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 15 - obsidian 35 - silicon dioxide of a crystalline
modification 1 - rubbles 24 - sand 25.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.8 MPa for 6 hours.
The thus-produced concrete in the form of cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 3
A mix is prepared from dry components by intermixing 805 kg of perlite, 506 kg of quartz sand, 690 kg of quartzite rubbles, 115 kg of kaolinite of the pelitic structure. The resulting mixture is combined with liquid glass taken in the amount of until a fully homogeneous mix is obtained.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 8 - perlite 35 - kaolinite of the pelitic structure 5 - rubbles 30 - sand 22.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.9 MPa for 10 hours.
The resulting concrete in the form of cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 4
A mix is prepared from dry components by intermixing 690 kg of perlite, 575 kg of quartz sand, 736 kg of quartzite rubbles, 23 kg of kaolinite of the pelitic structure. The thus-prepared mix is blended with liquid glass taken in the amount of 276 kg until a fully homogeneous mix is obtained.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 12 - perlite 30 - kaolinite of the pelitic structure 1 - rubbles 32 - sand 25.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.8GPa for the period of 8 hours.
The resulting concrete in the form of cubic samples is subjected to physico-mechnnical tests the results of which are given in the Table hereinbelow.
Example 5
A mix is prepared from dry components by blending 782 kg of perlite, 460 kg of quartz sand, 529 kg of diabase rubbles, 92 kg of silicon dioxide of a crystalline structure, 92 kg of kaolinite of the pelitic structure. The resulting mix is combined with liquid glass taken in the amount of 345 kg until a fully homogeneous mixture is obtained.
The resulting mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 15 - perlite 34 - silicon dioxide of a crystalline
modification 4 - kaolinite of the pelitic structure 4 - rubbles 23 - sand 20.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 1.0 MPa for 6 hours.
The thus-produced concrete in the form of cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 6
A mix is prepared from dry components by blending 736 kg of perlite, 460 kg of quartz sand, 598 kg of diabase rubbles, 46 kg of silicon dioxide of a crystalline modification and 46 kg of kaolinite of the pelitic structure. The resulting blend is mixed with liquid glass taken in the amount of 414 kg until a fully homogeneous mixture is obtained.
The resulting mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 18 - perlite 32 - silicon dioxide of a crystalline
modification 2 - kaolinite of the pelitic structure 2 - rubbles 26 - sand 20.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of l.2MPa for the period of 6 hours.
The thus-produced concrete in the form of cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 7
A mix is prepared from dry components by blending 920 kg of perlite, 414 kg of quartz sand, 754 kg of granite rubbles. The resulting mix is combined with liquid glass taken in the amount of 184 kg and with 23 kg of melaminocyanurate until a fully homogeneous mixture is obtained.
The resulting mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 8 - perlite 40 - melaminocyanurate 1 - rubbles 33 - sand 18.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.8 MPa for 8 hours.
The resulting concrete shaped as cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 8
A mix is prepared from dry components by blending 690 kg of perlite, 621 kg of quartz sand, 570.4 kg of granite rubbles. The resulting mix is blended with liquid glass in the amount of 414 kg and with 4.6 kg of melaminocyanurate until a fully homogeneous mixture is obtained.
The thus-produced mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 18 - perlite 30 -melaminocyanurate 0.2 - rubbles 24.8 - sand 27.
The mix is charged into a mould and subjected to a hydrot
hermal treatment under the pressure of 0.6 DBa for 10 hours.
The resulting concrete in the form of cubic samples is sub acted to physico-mechanical tests the results of which are shown in the Table hereinbelow0 example 9
A mix is prepared from dry components by blending 920 kg of obsidian, 4O9.2 kg of quartz sand, 621 kg of diabase rubbles, 92 kg of silicon dioxide of a crystalline modification.
The resulting mix is combined with liquid glass taken in the amount of 184 kg and with 13.8 kg of melaminocyanurate until a fully homogeneous mixture is obtained.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by glass: - liquid class 8 - obsidian 40 -silicon dioxide of a crystalline
modification 4 -melaminocyanurate 0.8 - rubbles 27 - sand 20.4
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.7 hBa for 9 ours.
The resulting concrete shaped as cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 10
A mix is prepared from dry components by blending 690 kg of obsidian, 529 kg of quartz sand, 588.8 kg of diabase rubbles, 46 kg of silicon dioxide of a crystalline modification. The resulting mix is blended with liquid glass taken in the amount of 414 kg and with 9.2 kg of melaminocyanurste until a fully homogeneous mixture is obtained.
The thus-prepered mix for the production of a chamically resistant concrete has the following composition, per cent by mass: - liquid glass 18 - obsidian 30 - silicon dioxide of a crystalline
modification 2 - melaminocyanurate 0.4 - rubbles 25.to - sand 23.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.9 bia for 7 hours.
The resultin concrete shaped as cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 11
A mix is prepared from dry components by blending 920 kg of perlite, 414 kg of quartz sand, 584.2 kg of of quartzite rubbles, 92 kg of silicon dioxide of a crystalline modification, 92 kg of kaolinite of the pelitic structure. The thus-prepared mix is combined lT;ith liquid glass taken in the amount of 184 kg and 13.8 kg of melaminocyanurate till a fully homogeneous mixture is obtained.
The thus-prepared mix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 8 - perlite 40 - silicon dioxide of a crystalline
modification 4 - melaminocyanurate 0.b - kaolinite of the pelitic structure 4 - rubbles 25.4 - sand 18.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 1.0MPa for the period of 7 hours.
The thus-produced concrete shaped as cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow.
Example 12
A mix is prepared from dry components by blending 690 kg of perlite, 478.4 kg of quartz sand, 616.4 4 of quartzite ruobles, 46 kg of silicon dioxide of a crystalline modification and 4u kg of kaolinite of the pelitic structure0 The thus-prepared mix is blended with liquid ;lass taken in the amount of 414 kg and with 9.2 kg of melaminocyanurate until a fully homogeneous mixture is obtained.
The thus prepared iaix for the production of a chemically resistant concrete has the following composition, per cent by mass: - liquid glass 18 - perlite - silicon dioxide of -a crystalline
modification 2 - melaminocyanurate 0.4 - kaolinite of the pelitic structure 2 - rubbles 26.8 - sand 20.8.
The mix is charged into a mould and subjected to a hydrothermal treatment under the pressure of 0.8spa for the period of 8 hours.
The thus-produced concrete in the form of cubic samples is subjected to physico-mechanical tests the results of which are shown in the Table hereinbelow. Table
S t r e n g t h, MPa
Example No. Resistance factor compression tensile in water in 20% H2SO4 1 2 3 4 5 1 100 8.7 0.86 0.94 2 100 8.5 0.86 0.94 3 130 11.8 0.92 0.95 4 135 12.1 0.94 0.96 5 130 11.8 0.92 0.95 6 135 12.1 0.94 0.96 7 135 12.1 0.94 0.95 8 140 12.3 0.95 0.96 9 130 10.6 0.94 0.95 10 130 8.3 0.95 0.96 11 135 12.1 0.94 0.95 12 140 12.3 0.95 0.96 Table (continued)
Level of long-time durability of the concrete.
No. Water ab- Acid perme- Elasticity compression strength sorption, ability, modulus,
% mm MPa in air in water in 20% H2SO4 in 5% NaOH 1 6 7 8 9 10 11 12 1 5.0 55,000 0.75 0.65 0.50 0.20 2 4.9 15 54,000 0.75 0.65 0.55 0.20 3 4.9 33 54.000 0.75 0.72 0.70 0.36 4 4.8 35 56,000 0.75 0.75 0.72 0.38 5 4.9 14 54,000 0.80 0.72 0.70 0.37 6 4.8 15 56,000 0.80 0.75 0.72 0.38 7 3.3 24 55,000 0.75 0.86 0.72 0.20 8 3.4 24 56,000 0.75 0.85 0.71 0.20 9 3.3 14 54,000 0.80 0.86 0.72 0.20 10 3.4 15 55,000 0.80 0.85 0.71 0.20 11 3.3 14 55,000 0.80 0.90 0.78 0.38 12 3.4 15 56,000 0.80 0.90 0.77 0.38
Claims (8)
1. A mix for the production of a chemically resistant concrete comprising, per cent by mass: liquid glass 8 to 18 finely divided volcanic acid water
containing glass 30 to 40 at least one modifying additive selected
from the group consisting of silicon dioxide
of a crystalline modification 1 to 6, kaolinite of the pelitic structure 1 to 5, and melaminocyanurate 0.2 to 1 and an acid-alkali-resistant aggregate the balance.
2. A mix according to Claim 1 containing obsidian as the finely divided volcanic acid water-containing glass and having the following composition, per cent by mass: liquid glass 12 to 15 obsidian 35 to 40 silicon dioxide of a crystalline modifi
cation 1 to 6 acid-alkali-resistant aggregate the balance.
3. A mix according to Claim 2 containing melamindcyanurate in an amount of from 0.4 to 0.6% by mass of said mix.
4. A mix according to Claim 1 containing perlite aS. the finely divided volcanic acid water-containing glass and having the following composition, per cent by mass: liquid glass 8 to 12 perlite 30 to 35 kaolinite of the pelitic structure 1 to 5 acid-alkali-resistant aggregate. the balance.
5. A mix according to Claim 4 containing melaminocyanurate in an amount of from 0.4 to 0.6% by mass of said mix.
6. A mix according to Claim 1 having the following composition, per cent by mass: liquid glass 15 to 18 perlite 32 to 34 silicon dioxide of a crystalline
modification 2 to 4 kaolinite of the perlite structure 2 to 4 acid-alkali-resistant aggregate the balance.
7. A mix according to Claim 6 containing melaminocyanurate in an amount of from 0.4 to 0.6 by mass of said mix.
8. A mix according to claim 1, substantially as described in any one of Examples 1 to 12 herein.
8. A mix according to claim 1, substantially as described in any one of Examples 1 to 12 herein.
Amendments to the claims
have been filed as follows
CLAIMS
1. A mix for the production of a chemically resistant concrete comprising, per cent by mass: water glass 8 to 18 finely divided volcanic acid water
containing glass 30 to 40 at least one modifying additive selected
from the group consisting of silicon dioxide
of a crystalline modification 1 to 6, kaolinite of the pelitic structure 1 to 5, and melaminocyanurate 0.2 to 1 and an acid-alkali-resistant aggregate the balance.
2. A mix according to Claim 1 containing obsidian as the finely divided volcanic acid water-containing glass and having the following composition, per cent by mass:
water glass 12 to 15 obsidian 35 to 40 silicon dioxide of a crystalline modifi cstion 1 to 6 acid-alkali-resistant aggregate the balance.
3. A mix according to Claim 2 containing melamino cyanurate in an amount of from 0.4 to 0.6% by mass of said mix.
4. A mix according to Claim 1 containing perlite a6 Whe finely divided volcanic acid water-containing glass and having the following composition, per cent by mass:
water glass 8 to 12 perlite 30 to 35 kaolinite of the pelitic structure 1 to 5 acid-alkali-resistant aggregate the balance.
5. A mix according to Claim 4 containing melaminocyanurate in an amount of from 0.4 to 0.6% by mass of said mint.
6. A mix according to Claim 1 having the following composition, per cent by mass: water glass 15 to 18 perlite 32 to 34 silicon dioxide of a crystalline
modification 2 to 4 kaolinite of the perlite structure 2 to 4 acid-alkali-resistant aggregate the balance.
7. A mix according to Claim 6 containing melaminocyanurate in an amount of from 0.4 to 0.6iso by mass of said mii.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102274 CN87102274A (en) | 1987-02-26 | 1987-03-25 | Prepare chemically stable concrete mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8703256A FR2612176B1 (en) | 1987-03-10 | 1987-03-10 | MIXTURE FOR THE PRODUCTION OF CHEMICALLY STABLE CONCRETE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8704558D0 GB8704558D0 (en) | 1987-04-01 |
| GB2201410A true GB2201410A (en) | 1988-09-01 |
Family
ID=9348803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08704558A Pending GB2201410A (en) | 1987-02-26 | 1987-02-26 | Mix for producing chemically resistant concrete |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS63236746A (en) |
| FR (1) | FR2612176B1 (en) |
| GB (1) | GB2201410A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148044C1 (en) * | 1998-08-10 | 2000-04-27 | Зорин Владимир Михайлович | Composition for manufacturing cellular material |
| RU2168481C1 (en) * | 2000-03-06 | 2001-06-10 | Институт химии твердого тела и механохимии СО РАН | Method of manufacturing unburned building products |
| RU2205161C2 (en) * | 2001-08-14 | 2003-05-27 | Петербургский государственный университет путей сообщения | Raw mixture for manufacture of porous construction material |
| RU2206536C1 (en) * | 2002-06-14 | 2003-06-20 | Рыков Павел Валентинович | Method for making building articles |
| RU2235697C2 (en) * | 2002-11-19 | 2004-09-10 | Саратовский государственный технический университет | Liquid glass composition |
| RU2492153C1 (en) * | 2012-02-13 | 2013-09-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный университет" | Method of producing heat insulating material |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR790420A (en) * | 1934-08-23 | 1935-11-21 | Water and acid resistant cement enhancements | |
| FR88202E (en) * | 1965-02-18 | 1966-07-22 | Agglomerate of sawdust and products obtained therewith | |
| JPS5490323A (en) * | 1977-12-28 | 1979-07-18 | Kanebo Ltd | Glass fiber reinforced pearlite formed body |
| JPS5688866A (en) * | 1979-12-21 | 1981-07-18 | Takashi Ishikawa | Inorganic lightweight panel |
| DE3026184C2 (en) * | 1980-07-10 | 1983-07-21 | Ministerstvo stroitel'stva predprijatij tjaželoj industrii SSSR | Mixture for producing a shaped body based on a waterglass solution and method for producing the shaped body |
| DE3303204A1 (en) * | 1983-02-01 | 1984-08-02 | Berleburger Schaumstoffwerk Gmbh, 5920 Bad Berleburg | Refractory and radiation-repelling lightweight building material and method for the production thereof |
| JPS605057A (en) * | 1983-06-20 | 1985-01-11 | 株式会社豊田中央研究所 | Inorganic composition, manufacture and solidification |
| JPS60204679A (en) * | 1984-03-29 | 1985-10-16 | 株式会社豊田中央研究所 | Method for producing inorganic composition |
| JPS60204658A (en) * | 1984-03-29 | 1985-10-16 | 株式会社豊田中央研究所 | Inorganic material, manufacture and solidification |
-
1987
- 1987-02-26 GB GB08704558A patent/GB2201410A/en active Pending
- 1987-03-10 FR FR8703256A patent/FR2612176B1/en not_active Expired
- 1987-03-25 JP JP7130587A patent/JPS63236746A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148044C1 (en) * | 1998-08-10 | 2000-04-27 | Зорин Владимир Михайлович | Composition for manufacturing cellular material |
| RU2168481C1 (en) * | 2000-03-06 | 2001-06-10 | Институт химии твердого тела и механохимии СО РАН | Method of manufacturing unburned building products |
| RU2205161C2 (en) * | 2001-08-14 | 2003-05-27 | Петербургский государственный университет путей сообщения | Raw mixture for manufacture of porous construction material |
| RU2206536C1 (en) * | 2002-06-14 | 2003-06-20 | Рыков Павел Валентинович | Method for making building articles |
| RU2235697C2 (en) * | 2002-11-19 | 2004-09-10 | Саратовский государственный технический университет | Liquid glass composition |
| RU2492153C1 (en) * | 2012-02-13 | 2013-09-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный университет" | Method of producing heat insulating material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8704558D0 (en) | 1987-04-01 |
| JPH034502B2 (en) | 1991-01-23 |
| FR2612176B1 (en) | 1989-07-13 |
| JPS63236746A (en) | 1988-10-03 |
| FR2612176A1 (en) | 1988-09-16 |
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