IE781869L - Expansion-additive composition for cements. - Google Patents
Expansion-additive composition for cements.Info
- Publication number
- IE781869L IE781869L IE781869A IE186978A IE781869L IE 781869 L IE781869 L IE 781869L IE 781869 A IE781869 A IE 781869A IE 186978 A IE186978 A IE 186978A IE 781869 L IE781869 L IE 781869L
- Authority
- IE
- Ireland
- Prior art keywords
- expansion agents
- cement compositions
- lime
- less
- composition
- Prior art date
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, 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to expansive cement compositions and to expansion agents containing free lime for use in such composition. Novel expansion agents are prepared by heating lime of particle size less than 250 microns and comprising at least 36 wt % of CaO in an atmosphere comprising water vapor at 100 to 400 DEG C or carbon dioxide at 350 to 850 DEG C when the particles contain less than 8 wt % Ca(OH)2, or by heating a partially hydrated lime at a temperature of at least 100 DEG C when the particles contain from 8 to 64 wt % Ca(OH)2. The encapsulated limes produced in this way are useful as expansion agents in hydratable cement compositions, the amount thereof generally being less than 30%, preferably 3 to 10%, based on the weight of the cement and the additive. Cement compositions containing the novel expansion agents are useful where shrinkage of the composition on drying has to be prevented or reduced.
[GB2004529A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83453977A | 1977-09-19 | 1977-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE781869L true IE781869L (en) | 1979-03-19 |
| IE47357B1 IE47357B1 (en) | 1984-02-22 |
Family
ID=25267156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1869/78A IE47357B1 (en) | 1977-09-19 | 1978-09-15 | Expansive cement compositions |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5493020A (en) |
| BE (1) | BE870477A (en) |
| CA (1) | CA1122231A (en) |
| DE (1) | DE2840572A1 (en) |
| DK (1) | DK411178A (en) |
| ES (2) | ES473348A1 (en) |
| FI (1) | FI63735C (en) |
| FR (1) | FR2403311A1 (en) |
| GB (1) | GB2004529B (en) |
| IE (1) | IE47357B1 (en) |
| IL (1) | IL55575A0 (en) |
| IT (1) | IT1098856B (en) |
| NO (1) | NO145232C (en) |
| SE (1) | SE434733B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0959052A1 (en) * | 1997-08-11 | 1999-11-24 | Maeta Techno-Research, Inc. | Cement composition and process for producing concrete and precast concrete with the same |
| JP3747988B2 (en) * | 1998-04-23 | 2006-02-22 | 電気化学工業株式会社 | Expandable material composition and expanded cement composition |
| JP4571483B2 (en) * | 2004-11-30 | 2010-10-27 | 太平洋マテリアル株式会社 | Liquid expansion material |
| JP5263955B2 (en) * | 2008-12-26 | 2013-08-14 | 太平洋マテリアル株式会社 | Low exothermic expandable admixture |
| EP2441738B1 (en) * | 2009-06-12 | 2018-07-04 | Denka Company Limited | Expansive admixture and method for producing same |
| DE102009045278B4 (en) * | 2009-10-02 | 2011-12-15 | Dirk Dombrowski | Mineral granular desulphurising agent based on calcium hydroxide, process for its preparation and its use |
| JP5744499B2 (en) * | 2010-12-09 | 2015-07-08 | 電気化学工業株式会社 | Grout cement composition and grout material |
| CN113272265A (en) | 2018-11-15 | 2021-08-17 | 电化株式会社 | Cement admixture, expansion material and cement composition |
| JP7293019B2 (en) * | 2019-07-18 | 2023-06-19 | デンカ株式会社 | EXPANDING COMPOSITION FOR CEMENT, CEMENT COMPOSITION, AND METHOD FOR PRODUCING THE EXPANSION COMPOSITION FOR CEMENT |
| EP4122900A4 (en) | 2020-04-23 | 2023-09-27 | Denka Company Limited | Cement admixture, expansion material, and cement composition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1732409A (en) * | 1926-04-05 | 1929-10-22 | Colloidal Lime Plaster Corp | Quick-setting lime product and method of making the same |
| US3106453A (en) * | 1963-04-22 | 1963-10-08 | Corson G & W H | Process for producing dry lime hydrate |
| BE673832A (en) * | 1964-12-18 | |||
| US3649317A (en) * | 1970-11-12 | 1972-03-14 | Fuller Co | Shrinkage compensating cement |
-
1978
- 1978-09-12 GB GB7836573A patent/GB2004529B/en not_active Expired
- 1978-09-14 CA CA000311342A patent/CA1122231A/en not_active Expired
- 1978-09-14 IL IL7855575A patent/IL55575A0/en unknown
- 1978-09-14 NO NO783104A patent/NO145232C/en unknown
- 1978-09-14 BE BE190481A patent/BE870477A/en not_active IP Right Cessation
- 1978-09-14 ES ES473348A patent/ES473348A1/en not_active Expired
- 1978-09-15 IE IE1869/78A patent/IE47357B1/en unknown
- 1978-09-15 FR FR7826534A patent/FR2403311A1/en active Pending
- 1978-09-15 IT IT27769/78A patent/IT1098856B/en active
- 1978-09-18 FI FI782851A patent/FI63735C/en not_active IP Right Cessation
- 1978-09-18 DK DK411178A patent/DK411178A/en not_active Application Discontinuation
- 1978-09-18 DE DE19782840572 patent/DE2840572A1/en not_active Withdrawn
- 1978-09-19 SE SE7809821A patent/SE434733B/en not_active IP Right Cessation
- 1978-09-19 JP JP11501178A patent/JPS5493020A/en active Pending
-
1979
- 1979-04-24 ES ES479859A patent/ES479859A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE434733B (en) | 1984-08-13 |
| NO783104L (en) | 1979-03-20 |
| IT7827769A0 (en) | 1978-09-15 |
| FI63735C (en) | 1983-08-10 |
| NO145232B (en) | 1981-11-02 |
| ES473348A1 (en) | 1979-11-01 |
| FR2403311A1 (en) | 1979-04-13 |
| ES479859A1 (en) | 1979-11-16 |
| IL55575A0 (en) | 1978-12-17 |
| GB2004529B (en) | 1982-04-21 |
| JPS5493020A (en) | 1979-07-23 |
| GB2004529A (en) | 1979-04-04 |
| CA1122231A (en) | 1982-04-20 |
| DK411178A (en) | 1979-03-20 |
| IE47357B1 (en) | 1984-02-22 |
| BE870477A (en) | 1979-03-14 |
| NO145232C (en) | 1982-02-10 |
| FI782851A (en) | 1979-03-20 |
| FI63735B (en) | 1983-04-29 |
| DE2840572A1 (en) | 1979-03-29 |
| IT1098856B (en) | 1985-09-18 |
| SE7809821L (en) | 1979-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU632714B2 (en) | Silicate composition | |
| SE8504754D0 (en) | PROCEDURE FOR MANUFACTURING BUILDING MATERIAL | |
| IE781869L (en) | Expansion-additive composition for cements. | |
| JPS5641263A (en) | Surface modification of silica powder | |
| EP0810181A3 (en) | Silica-cerium oxide composite particles, method for the preparation thereof and resin composition and cosmetic composition compounded therewith | |
| EP0381165A3 (en) | Transparent antiperspirant compositions and method of preparation | |
| KR840008790A (en) | α-dicalcium silicate-containing cement composition | |
| AU661583B2 (en) | Alkyl hydroxyalkyl cellulose ethers containing sulfoalkyl groups | |
| CS274584B2 (en) | Method of porcelain selection e.g.metakaolin intended for addition into composition that contains cement and glass fibres | |
| JPS5534226A (en) | Flame-retardant resin composition | |
| JPS55109243A (en) | Sealing glass | |
| JPS57149380A (en) | Heat-accumulating material | |
| JPS5796079A (en) | Heat accumulating material | |
| JPS5562978A (en) | Motor vehicle surface-protecting agent composition | |
| JPS5638433A (en) | Iron ore pellet containing mgo | |
| GR3024655T3 (en) | Plaster and/or paint product. | |
| HU212486B (en) | Process for slaking unslaked lime being being in ash | |
| JPS57126407A (en) | Cement composition for dental use | |
| JPS5534266A (en) | Soil stabilizer | |
| JPS5237957A (en) | Chlorine-containing resin compositions | |
| JPS5614402A (en) | Manufacture of stable potassium hypochlorite composition | |
| JPS5551734A (en) | Glass composition | |
| JPS5241660A (en) | Resin composition of low permeabilities to moisture and gases | |
| JPS52130857A (en) | Polyester compositions | |
| JPS5236196A (en) | Process for preparing cured compositions based on modified epoxy resin s |