发明名称 |
Masonry admixture and method of preparing same |
摘要 |
An additive is provided that comprises a single blend of an acid component and calcium stearate for simultaneously controlling both primary and secondary efflorescence in concrete, and particularly in concrete masonry units such as pavers. A preferred method comprises the steps of partially saponifying tall oil fatty acid with calcium hydroxide, and thereafter adding calcium stearate dispersion to form a stable emulsion blend. In another embodiment, potassium hydroxide is mixed with calcium stearate dispersion, then subsequently introduced into tall oil fatty acid to provide a non-emulsion TOFA/CSD blend.
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申请公布号 |
US5460648(A) |
申请公布日期 |
1995.10.24 |
申请号 |
US19940228473 |
申请日期 |
1994.04.15 |
申请人 |
W. R. GRACE & CO.-CONN. |
发明人 |
WALLOCH, CRAIG T.;EBNER, CYNTHIA L.;CHIN, DAVID;SIADAT, BAHRAM;OU, CHIA-CHIH |
分类号 |
C04B24/08;C04B40/00;(IPC1-7):C08L91/00 |
主分类号 |
C04B24/08 |
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主权项 |
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