| 摘要 |
New set-accelerating admixtures for hydraulic cement compositions are disclosed. These admixtures incorporate known set accelerators and certain low molecular weight glycols, e.g., glycerol and ethylene glycol, are found to be surprinsingly effective in decreasing the initial set time of hydraulic cements, mortars, and concretes, and are advantageous as reduced-temperature set-accelerators. |
| 申请人 |
W.R. GRACE & CO.-CONN., NEW YORK, N.Y., US |
发明人 |
ARFAEI, AHMAD, CHELMSFORD, MA 01824, US;BERKE, NEAL S., CHELMSFORD, MA 01863, US;JEKNAVORIAN, ARA A., CHELMSFORD, MA 01824, US |
