IT1157028B - Cement compsn. of improved dimensional stability - Google Patents
Cement compsn. of improved dimensional stabilityInfo
- Publication number
- IT1157028B IT1157028B IT67725/82A IT6772582A IT1157028B IT 1157028 B IT1157028 B IT 1157028B IT 67725/82 A IT67725/82 A IT 67725/82A IT 6772582 A IT6772582 A IT 6772582A IT 1157028 B IT1157028 B IT 1157028B
- Authority
- IT
- Italy
- Prior art keywords
- cementitious
- compsn
- wet expansion
- hardened
- inhibitor
- Prior art date
Links
- 239000004568 cement Substances 0.000 title abstract 2
- 238000001035 drying Methods 0.000 abstract 3
- 239000003112 inhibitor Substances 0.000 abstract 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 abstract 1
- 239000011398 Portland cement Substances 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052808 lithium carbonate Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A cementitious compsn, which when mixed with water sets into a hard mass with little wet expansion in the hardened state, comprises aluminous cement, gypsum, a drying shrinkage inhibitor and sufficient Li salt; pref. Li2CO3, LiOH, Li citrate or Li acetate, to act as a wet expansion inhibitor. A cementitious compsn. setting in a short time with little shrinkage and possessing a high degree of fluid impermeability when set, is as above with Portland cement as the drying shrinkage inhibitor. The method of inhibiting wet expansion in the hardened system of the cementitious system by adding Li salt; and the hardened compsn, are also claimed. Cementitious compsns. exhibiting little wet expansion, e.g. 0.188% no dimensional change on drying; having high abrasion and chemical resistance, fluid impermeability, and high strength, and having fast setting times, can be provided. The compsns. are useful in the construction industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67725/82A IT1157028B (en) | 1982-06-04 | 1982-06-04 | Cement compsn. of improved dimensional stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67725/82A IT1157028B (en) | 1982-06-04 | 1982-06-04 | Cement compsn. of improved dimensional stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8267725A0 IT8267725A0 (en) | 1982-06-04 |
| IT1157028B true IT1157028B (en) | 1987-02-11 |
Family
ID=11304805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT67725/82A IT1157028B (en) | 1982-06-04 | 1982-06-04 | Cement compsn. of improved dimensional stability |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1157028B (en) |
-
1982
- 1982-06-04 IT IT67725/82A patent/IT1157028B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8267725A0 (en) | 1982-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950531 |