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AU8181491A - Process for producing lime hydrate-rich binders for concretes and mortars, and use of the binders thus produced - Google Patents

Process for producing lime hydrate-rich binders for concretes and mortars, and use of the binders thus produced

Info

Publication number
AU8181491A
AU8181491A AU81814/91A AU8181491A AU8181491A AU 8181491 A AU8181491 A AU 8181491A AU 81814/91 A AU81814/91 A AU 81814/91A AU 8181491 A AU8181491 A AU 8181491A AU 8181491 A AU8181491 A AU 8181491A
Authority
AU
Australia
Prior art keywords
lime hydrate
mortars
concretes
binders
commercially available
Prior art date
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.)
Abandoned
Application number
AU81814/91A
Inventor
Johann August Moser
Stefan Georg Wisser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INSTITUT fur BAUSTOFFPRUFUNG WALDKIRCH GmbH
Original Assignee
INST BAUSTOFFPRUFUNG WALDKIRCH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INST BAUSTOFFPRUFUNG WALDKIRCH filed Critical INST BAUSTOFFPRUFUNG WALDKIRCH
Publication of AU8181491A publication Critical patent/AU8181491A/en
Abandoned legal-status Critical Current

Links

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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
    • C04B22/064—Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth 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
    • 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
    • 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
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0094—Agents for altering or buffering the pH; Ingredients characterised by their pH
    • 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
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/61—Corrosion inhibitors
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/26—Corrosion of reinforcement resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

There exists today no possibility to add larger amounts of commercially available lime hydrate to concretes or mortars. Lime hydrate (Ca(OH)2?) is required on the one hand to maintain in reinforced concretes and mortars an alcalinity at a pH value higher than 9, even during long steel passivation carbonation processes, on the other hand in wall and plaster mortars to allow sealing, crack-healing transformation processes to take place. By producing and using pressed lime hydrate it is possible to obtain lime hydrate-rich binders for concretes and mortars. For that purpose, commercially available lime hydrate is pressed into moulded pieces of various forms and sizes, then crushed and sifted if necessary. The lime hydrate-rich binders produced with pressed lime hydrate require less water during their processing in concretes and mortars, so that shrinking is essentially reduced in comparison with the use of commercially available lime hydrate. These lime hydrate-rich binders are useful for reinforced and non-reinforced concrete and mortar constructions, in new buildings as well as in building renovation, and for wall and plaster mortars, especially in the field of the preservation of monuments.
AU81814/91A 1990-07-21 1991-07-04 Process for producing lime hydrate-rich binders for concretes and mortars, and use of the binders thus produced Abandoned AU8181491A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4023226 1990-07-21
DE4023226A DE4023226C1 (en) 1990-07-21 1990-07-21

Publications (1)

Publication Number Publication Date
AU8181491A true AU8181491A (en) 1992-02-18

Family

ID=6410753

Family Applications (1)

Application Number Title Priority Date Filing Date
AU81814/91A Abandoned AU8181491A (en) 1990-07-21 1991-07-04 Process for producing lime hydrate-rich binders for concretes and mortars, and use of the binders thus produced

Country Status (7)

Country Link
EP (1) EP0540552B1 (en)
JP (1) JPH05508608A (en)
AT (1) ATE111063T1 (en)
AU (1) AU8181491A (en)
DE (2) DE4023226C1 (en)
ES (1) ES2059145T3 (en)
WO (1) WO1992001643A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325829C1 (en) * 1993-07-31 1995-03-23 Waldkirch Inst Baustoffpruef Process for preparing calcium hydroxide-rich binders for concretes, mortars, plasters, renders, screeds or slurries and use of the binders thus prepared
FR2750981B1 (en) * 1996-07-12 1998-11-06 Cia METHOD FOR PROLONGING THE LONG-TERM PROTECTIVE EFFECT OF A CEMENT-BASED COMPOSITION AGAINST CORROSION OF STEELS INCLUDED AND PRODUCT ALLOWING THIS PROLONGATION
DE19815631A1 (en) * 1998-04-07 1999-10-14 Hasit Trockenmoertel Gmbh Process for the production of a mortar corresponding to a historical mortar
JP4369135B2 (en) * 2002-07-18 2009-11-18 株式会社神戸製鋼所 Composition, cured body, concrete cask, and method for producing cured body
JP6116350B2 (en) * 2013-05-10 2017-04-19 国立大学法人 東京大学 Cement admixture and cement composition
WO2017081119A2 (en) * 2015-11-10 2017-05-18 Yara International Asa Calcium nitrate for reducing the pore size distribution of a hardened cementitious composition and steel reinforced concrete having an elevated resistance towards carbonation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119731B (en) * 1953-08-19 1961-12-14 Steine Und Erden G M B H Process for the production of anti-corrosion coatings on steel reinforcement for steam-hardened concrete, preferably lightweight or aerated concrete
DE1800103B2 (en) * 1968-10-01 1971-11-11 Lechler Chemie Gmbh Press-in mortar for clamping tubes
DE2040767A1 (en) * 1970-08-17 1972-03-02 Rheinische Kalksteinwerke Compacting burnt lime - after exposure to steam
JPS60204683A (en) * 1984-03-29 1985-10-16 株式会社小野田 Rust prevention of steel material in inorganic material
DE3503276A1 (en) * 1985-01-31 1986-08-07 Wacker-Chemie GmbH, 8000 München REINFORCEMENT ELEMENTS PROTECTED BY CORROSION AGAINST CORROSION OR IN PORO CONCRETE
DE3618478A1 (en) * 1985-07-25 1987-01-29 Bauakademie Ddr Pulverulent anti-corrosion agent, preferably for reinforcement steel in concrete
DE3608195A1 (en) * 1986-03-12 1987-09-17 Koch Marmorit Gmbh METHOD AND MEANS FOR RENOVATING CONCRETE
DE3708983A1 (en) * 1987-03-19 1988-09-29 Heribert Hiendl Process for producing a structural steel with corrosion protection
DD262765A3 (en) * 1987-04-10 1988-12-14 Bauakademie Ddr CORROSION PROTECTION COATING FOR STEEL, ESPECIALLY FOR REINFORCING STEEL IN CONCRETE

Also Published As

Publication number Publication date
DE59102860D1 (en) 1994-10-13
JPH05508608A (en) 1993-12-02
EP0540552B1 (en) 1994-09-07
EP0540552A1 (en) 1993-05-12
ES2059145T3 (en) 1994-11-01
WO1992001643A1 (en) 1992-02-06
DE4023226C1 (en) 1992-01-23
ATE111063T1 (en) 1994-09-15

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