CN1275544A - Ultra early-strength grouting material - Google Patents
Ultra early-strength grouting material Download PDFInfo
- Publication number
- CN1275544A CN1275544A CN00116214.4A CN00116214A CN1275544A CN 1275544 A CN1275544 A CN 1275544A CN 00116214 A CN00116214 A CN 00116214A CN 1275544 A CN1275544 A CN 1275544A
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- China
- Prior art keywords
- grouting material
- strength grouting
- cement
- strength
- early
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
本发明是一种超早强灌浆料。其原料组成配比按重量计为水泥30～40%、骨料50～60%、早强剂8～15%、加速水化剂0.7～0.9、缓凝剂0.08～0.3%和减水剂0.8～1.53%。本超早强灌浆料浇灌养护12小时,抗压强度即可达20MPa。本超早强灌浆料适用于机场停机坪、跑道、设备基础、道路等有时间限制的场合抢修,用途广泛。The invention is a super early strength grouting material. The proportion of raw materials is 30-40% by weight of cement, 50-60% of aggregate, 8-15% of early strength agent, 0.7-0.9 of accelerated hydration agent, 0.08-0.3% of retarder and 0.8% of water-reducing agent. ~1.53%. The super early strength grouting material can be watered and cured for 12 hours, and the compressive strength can reach 20MPa. This super-early-strength grouting material is suitable for emergency repairs on airport aprons, runways, equipment foundations, roads and other occasions with time constraints, and has a wide range of uses.
Description
The present invention relates to the grouting material that a kind of foundation works is used, particularly a kind ofly rush to repair the ultra early-strength grouting material that industrial equipment foundation is used.
Present Chinese existing early-strength grouting material can come into operation with the shortest time through the pouring maintenance, and the shortest time is 24 hours.Final setting time generally was about about 4～5 hours, therefore was zero at 4 hours with interior ultimate compression strength, and its ultimate compression strength was generally 20MPa later on by 24 hours, and all must not stressedly use with interior at 24 hours.The By-40 grouting material of producing as China just belongs to this type of material, and its proportioning is: cement 42.1%, yellow ground 56.8%, water reducer 0.63%, aluminium powder 0.017%, silica flour 0.42%.Japanese kokai publication hei 8-290951 discloses a kind of grouting material of comparison, 2 hours its ultimate compression strength of maintenance has only 5MPa, and it fills out plaster material in can only be when laying concrete plate such as PC plate, RC plate employed, can not be as direct thrust surface material, this material can obtain early strength 1MPa above (2 hours), the 28 day length of time, ultimate compression strength was in 10MPa, its proportioning is: cement 20～40%, calcium-aluminate 6～18%, gypsum 4～12%, aluminium slag 24～70% separates depressant 0.01～0.1%, solidifies to adjust agent 0.1～5.0%.
The Equipment Foundations of industry such as metallurgy, chemical industry and heavy-duty machinery, owing to long-term load, vibrated, the influence of the reasons such as erosion of corrosive medium such as environment temperature, humidity variation, coal gas, cause influences such as the breakage of Equipment Foundations concrete, wall screw become flexible, corrosion, fracture to produce, thereby be badly in need of changing or repairing, production is recovered as early as possible, often take place owing to overhaul of the equipments simultaneously, if the intensity of grouting material is too high, the disintegration of Equipment Foundations is from now on caused very big difficulty, therefore require grouting to expect not only early strength height, and later strength can not be too high.The operating feature of modernization large enterprises is continuitys, generally can't stop and overhaul, and as burst accident takes place, finish by robbing to cultivate.Therefore require the time of repairing, maintenance short more good more, the scene is often because construction material itself will carry out maintenance for a long time after having constructed, even the time of repairing is shorter at present, but still will wait one day even just can come into operation in several days, have a strong impact on production.Existing strong grouting material early can not satisfy the maintenance needs fully, and their general requirements must not be subjected to generating collision in 24 hours, and the moist curing that waters after the final set needed just can come into operation afterwards at least in 1 day.And large-scale metallurgical enterprise has the maintenance of this equipment to finish in the shortest time; to reduce nonscheduled down time; obtain maximizing the benefits; and present existing early-strength grouting material can't satisfy this requirement; in overhaul of the equipments, usually can cause the increase of nonscheduled down time, thereby reduce the income of enterprise because of the grouting material will just can come into operation through maintenance for a long time.
The object of the present invention is to provide a kind of ultra early-strength grouting material, can further shorten the pouring service time, reach required ultimate compression strength, thereby can come into operation sooner, to be applicable to the repairing at crash time limiting field institute position.
For achieving the above object, the present invention adopts following technical scheme:
The present invention is a kind of ultra early-strength grouting material, it is characterized in that raw material consists of cement, aggregate, hardening accelerator, acceleration hydrated agent, retardant and water reducer, its proportioning is by weight: cement 30～60%, aggregate 50～60%, hardening accelerator 8～15%, quicken hydrated agent 0.7～0.9%, retardant 0.08～1.53%.This ultra early-strength grouting material amount of water at the construction field (site) is 15～18% of a ultra early-strength grouting material, and in the pouring maintenance 12 hours, ultimate compression strength can reach 20MPa.
Above-mentioned cement should adopt silicate cement, and aggregate should adopt yellow ground, and the SH additive (silicate cement quick solidifying agent) that hardening accelerator should adopt Shanghai Cement Plant to produce quickens hydrated agent and should adopt Na
2CO
3, water reducer should adopt high efficiency water reducing agent.
Above-mentioned yellow ground should adopt particle diameter be 0.35～5mm and fineness modulus Mx be 2.3～3.7 in thick yellow ground.
Form by the raw material of above-mentioned ultra early-strength grouting material, its proportioning is adjusted into by weight: silicate cement 30～35.8%, in thick yellow ground 50～53.7%, SH additive 8.95～13%, Na
2CO
3, 0.72～0.9%, retardant 0.09～0.3%, high efficiency water reducing agent 0.8～1.53%.In this ultra early-strength grouting material pouring maintenance 12 hours, ultimate compression strength can reach 25MPa.
Form by the raw material of above-mentioned ultra early-strength grouting material, its proportioning is adjusted into by weight: silicate cement 30～34.8%, in thick yellow ground 50～51.5%, SH additive 12～13%, Na
2CO
30.78～0.9%, retardant 0.2～0.26%, high efficiency water reducing agent 1.0～1.53%.In this ultra early-strength grouting material pouring maintenance 6 hours, ultimate compression strength can reach 20MPa.
Form by the raw material of above-mentioned ultra early-strength grouting material, its proportioning is adjusted into by weight: silicate cement 30～33.86%, in thick yellow ground 50～50.8%, SH additive 0.85～0.9%, Na
2CO
30.25～0.26%, retardant 1.0～1.53%.In this ultra early-strength grouting material pouring maintenance 2 hours, ultimate compression strength can reach 20MPa.
Above-mentioned retardant should adopt the hydroxycarboxylic acid material, as citric acid (3-hydroxyl-3 carboxyl pentanedioic acid) etc.
Above-mentioned high efficiency water reducing agent should adopt beta-naphthalenesulfonic-acid salt formaldehyde compound, as commercially available SN-II high efficiency water reducing agent.
The selected raw material of ultra early-strength grouting material provided by the invention is formed and proportioning, based on following raw material anabolic action mechanism, product performance and cost factor:
1. as cement use level less than 30%, then can not obtain enough intensity, but if surpass 40%, then the later strength of grouting material is too high, the disintegration of grout blanket brings difficulty during to basis maintenance from now on, again because silicate cement is compared the easiest obtaining with other cement, so select for use silicate cement as agglutinate.
Since yellow ground be easy to obtain, and cheap, so we select for use yellow ground (in thick yellow ground) as the aggregate composition.
3. will prepare the grouting material that reaches in the short period of time more than the 20MPa, certainly will will realize that we have selected SH additive (silicate cement quick solidifying agent) at last by mixing special hardening accelerator, this additive is with CaOAl
2O
3Cement clinker for major ingredient, add an amount of anhydrite and accelerator for hardening, make through levigate, can regulate time of coagulation, hour gain in strength is rapid, the time of coagulation and the early anti pressured intension that how much have directly determined the grouting material of its incorporation are if less than 8% then can not get our desired early strength, but, then increase uneconomical because of cost if surpass 15%.
4. because the presetting period of SH additive is too short, be not easy to construction, therefore certainly will will add retardant and control, if 0.08% retarding effect of add-on less than is not obvious, but cause that sclerosis slows down, thereby influence early strength if surpass 0.3%.Retardant can be selected all kinds of hydroxycarboxylic acid materials for use, as citric acid (3-hydroxyl-3 carboxyl pentanedioic acid) etc.
5. because the hardening accelerator of selecting for use is the SH additive that commercially available Shanghai Cement Plant produces, the toughness of this material is very big, mobile poor, but we will prepare the grouting material of high flowability, certainly will reach the degree of mobilization requirement by mixing water reducer outward, after adding water reducer, because the cement particle has adsorbed water reducer molecule or ion, fixedly electrostatic double layer and diffusion double layer around the cement particle, have been formed, make between particle and repel mutually, but relative movement again between immovable bed and the diffusion layer, thus make the cement particle keep better dispersion state, can reduce water consumption thereby reach, increase mobile.The high efficiency water reducing agent of selecting for use is beta-naphthalenesulfonic-acid salt formaldehyde condensation products (as the SN-II high efficiency water reducing agent etc.), if less than 0.8%, then DeGrain if surpass 1.53%, then can influence the swelling property of grouting material.
6. in order to quicken hydrated cementitious, we have selected Na for use
2CO
3As quickening the hydrated cementitious agent, if add-on less than 0.7%, then DeGrain causes the alkalescence of (a) cement too high if add-on surpasses 0.9%, can cause soundness of cement bad, thus the intensity of influence grouting material; (b) the cement multiviscosisty is too fast, is unfavorable for construction.
The present invention compared with prior art, have following conspicuous outstanding feature and remarkable advantage: 1. raw material is formed cement and select, making grouting material have sufficient intensity and later stage intensity is not too high, and it is easier to draw materials, selecting silicate cement for use is agglutinate, and to control its content be 30～40%, reaches the required grouting material ultimate compression strength requirement of salvaging; 2. in the material component hardening accelerator is arranged, then shorten the pouring curing time greatly; And be equipped with a spot of retardant, be convenient to construction and do not influence setting time, so can in pouring maintenance 2～12 hours, can reach required ultimate compression strength.Ultra early-strength grouting material provided by the invention not only can be used for the position repairing of free restriction such as airport hardstand, runway, Rules for the Certification of Freight Containers, and can be used for the reparation occasion of Equipment Foundations, road etc., and is of many uses.
Provide embodiment below:
Embodiment one:
The raw material of this ultra early-strength grouting material is formed proportioning: 625R silicate cement 33.87%, in thick yellow ground 50.8%, SH additive 12.7, Na
2CO
30.85%, citric acid 0.255%, SN-II high efficiency water reducing agent 1.525%.
This ultra early-strength grouting material pouring maintenance was just hardened in 1 hour, maintenance after 2 hours equipment put into operation, result of use is good.The measurement of ultimate compression strength is with reference to Chinese national standard GBJ81-85 " normal concrete mechanical test method ", and its test result is as follows:
Degree of mobilization (S) is: 6～8
Ultimate compression strength (MPa) is: 2 hours 4 hours 6 hours 1 day 3 days 28 days
20.5 25.0 25.5 36.4 58 60.9
This ultra early-strength grouting material is early strength height, good fluidity not only, and workability is also better, does not in use find the just fixed phenomenon that also do not stir.
Embodiment two:
The raw material of this ultra early-strength grouting material is formed proportioning: 625R silicate cement 34.4%, in thick yellow ground 51.5%, SH additive 12.03%, Na
2CO
30.775%, citric acid 0.258%, SH-II high efficiency water reducing agent 1.03%.
The result is as follows for its test performance:
Degree of mobilization (S) is: 4～6
Ultimate compression strength (MPa) is: 2 hours 6 hours 3 days 28 days
17.7 21.6 54 63
Embodiment three:
The raw material of this ultra early-strength grouting material is formed proportioning: 625R silicate cement 35.8%, in thick yellow ground 53.7%, SH additive 8.95%, Na
2CO
30.72%, citric acid 0.0895%, SH-II high efficiency water reducing agent 0.81%.
The result is as follows for its test performance:
Degree of mobilization (S) is: 6～7
Ultimate compression strength (MPa) is: 2 hours 12 hours 1 day 3 days 28 days
11.5 25.1 28 50 63 annotate: the degree of mobilization testing standard is referring to BZQ (JJ) 0061-96
Claims (8)
1. ultra early-strength grouting material, it is characterized in that raw material consists of cement, aggregate, hardening accelerator, acceleration hydrated agent, retardant and water reducer, its proportioning is by weight: cement 30～40%, aggregate 50～60%, hardening accelerator 8～15%, quicken hydrated agent 0.7～0.9%, retardant 0.08～0.3%, water reducer 0.8～1.53%.
2. ultra early-strength grouting material according to claim 1 is characterized in that cement is silicate cement, and aggregate is a yellow ground, and hardening accelerator is the SH additive, and the acceleration hydrated agent is Na
2CO
3, water reducer is a high efficiency water reducing agent.
3. ultra early-strength grouting material according to claim 2, it is characterized in that the yellow ground particle diameter be 0.35～5mm and fineness modulus Mx be 2.3～3.7 in thick yellow ground.
4. ultra early-strength grouting material according to claim 3 is characterized in that raw material forms proportioning and be by weight: silicate cement 30～35.8%, in thick yellow ground 50～53.7%, SH additive 8.95～13%, Na
2CO
30.72～0.9%, retardant 0.09～0.3%, high efficiency water reducing agent 0.8～1.53%.
5. ultra early-strength grouting material according to claim 3 is characterized in that raw material forms proportioning and be by weight: silicate cement 30～34.4%, in thick yellow ground 50～51.5%, SH additive 12～13%, Na
2CO
30.78～0.9%, retardant 0.2～0.26%, high efficiency water reducing agent 1.0～1.53%.
6. ultra early-strength grouting material according to claim 3 is characterized in that raw material forms proportioning and be by weight: silicate cement 30～33.86%, in thick yellow ground 50～50.8%, SH additive 12.7～13%, Na
2CO
30.85～0.9%, retardant 0.25～0.26%, high efficiency water reducing agent 1.0～1.53%.
7. according to claim 1 or 4 or 5 or 6 described ultra early-strength grouting materials, it is characterized in that retardant is a hydroxyl carboxylic material, as citric acid.
8. according to claim 2 or 4 or 5 or 6 described ultra early-strength grouting materials, it is characterized in that high efficiency water reducing agent is a beta-naphthalenesulfonic-acid salt formaldehyde compound, as the SN-II high efficiency water reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00116214.4A CN1114574C (en) | 2000-05-30 | 2000-05-30 | Ultra early-strength grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00116214.4A CN1114574C (en) | 2000-05-30 | 2000-05-30 | Ultra early-strength grouting material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1275544A true CN1275544A (en) | 2000-12-06 |
| CN1114574C CN1114574C (en) | 2003-07-16 |
Family
ID=4585625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00116214.4A Expired - Fee Related CN1114574C (en) | 2000-05-30 | 2000-05-30 | Ultra early-strength grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1114574C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381386C (en) * | 2006-07-13 | 2008-04-16 | 内蒙古科技大学 | Retarding high-efficiency water reducer for concrete |
| CN100381389C (en) * | 2006-07-13 | 2008-04-16 | 内蒙古科技大学 | A performance-adjustable non-shrinkage grouting material |
| CN102173708A (en) * | 2011-02-10 | 2011-09-07 | 乌鲁木齐市建筑建材科学研究院有限责任公司 | Aggregate-free cement-based grouting material |
| CN101767962B (en) * | 2009-01-06 | 2012-12-12 | 上海罗洋新材料科技有限公司 | Pore canal grouting concrete for buildings |
| CN101353244B (en) * | 2008-02-27 | 2013-03-27 | 北京纽维逊建筑工程技术有限公司 | Rapid grout for railroad bridge bearing |
| CN102115320B (en) * | 2009-12-31 | 2013-05-01 | 北京市建筑工程研究院有限责任公司 | Super early strength mortar |
| CN103553473A (en) * | 2013-11-04 | 2014-02-05 | 中国建筑第二工程局有限公司 | Retarding cement paste for prestressed pipeline grouting and preparation method thereof |
| CN110894149A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | Super-early-strength 3D printing building ink and construction method thereof |
| CN112939503A (en) * | 2021-04-08 | 2021-06-11 | 四川省佳宇建设集团有限公司 | Ordinary portland cement-based ultra-early-strength and ultra-high-strength inorganic grouting material and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336765C (en) * | 2006-05-11 | 2007-09-12 | 同济大学 | Self-compacted concrete of resisting erosion of sulfate and its preparing method |
| CN100336767C (en) * | 2006-06-01 | 2007-09-12 | 同济大学 | Self compacting high strength mortar |
-
2000
- 2000-05-30 CN CN00116214.4A patent/CN1114574C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381386C (en) * | 2006-07-13 | 2008-04-16 | 内蒙古科技大学 | Retarding high-efficiency water reducer for concrete |
| CN100381389C (en) * | 2006-07-13 | 2008-04-16 | 内蒙古科技大学 | A performance-adjustable non-shrinkage grouting material |
| CN101353244B (en) * | 2008-02-27 | 2013-03-27 | 北京纽维逊建筑工程技术有限公司 | Rapid grout for railroad bridge bearing |
| CN101767962B (en) * | 2009-01-06 | 2012-12-12 | 上海罗洋新材料科技有限公司 | Pore canal grouting concrete for buildings |
| CN102115320B (en) * | 2009-12-31 | 2013-05-01 | 北京市建筑工程研究院有限责任公司 | Super early strength mortar |
| CN102173708A (en) * | 2011-02-10 | 2011-09-07 | 乌鲁木齐市建筑建材科学研究院有限责任公司 | Aggregate-free cement-based grouting material |
| CN103553473A (en) * | 2013-11-04 | 2014-02-05 | 中国建筑第二工程局有限公司 | Retarding cement paste for prestressed pipeline grouting and preparation method thereof |
| CN110894149A (en) * | 2018-09-13 | 2020-03-20 | 张艳萍 | Super-early-strength 3D printing building ink and construction method thereof |
| CN112939503A (en) * | 2021-04-08 | 2021-06-11 | 四川省佳宇建设集团有限公司 | Ordinary portland cement-based ultra-early-strength and ultra-high-strength inorganic grouting material and preparation method thereof |
| CN112939503B (en) * | 2021-04-08 | 2022-10-11 | 四川省佳宇建设集团有限公司 | Ordinary portland cement-based super-early-strength super-high-strength inorganic grouting material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114574C (en) | 2003-07-16 |
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