发明名称 |
Process for stabilizing cement stone formed with aluminous binders |
摘要 |
Process for stabilizing cement stone, formed with binders rich in aluminates by setting with water, against high elevated temperatures and high humidity which comprises adding calcium sulfite to the aluminous binder material prior to setting. In another embodiment of the invention the addition of calcium borate along with the calcium sulfite provided even greater stability both initially and over a period of time. Calcium sulfite formed as a by-product of the waste gas purification of furnaces is the main source of supply for purposes of this invention.
|
申请公布号 |
US4094692(A) |
申请公布日期 |
1978.06.13 |
申请号 |
US19770757423 |
申请日期 |
1977.01.06 |
申请人 |
DYCKERHOFF ZEMENTWERKE AKTIENGESELLSCHAFT |
发明人 |
RAUSCHENFELS, EBERHARD |
分类号 |
C04B22/00;C04B28/06;(IPC1-7):C04B7/32 |
主分类号 |
C04B22/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|