Title:
Properties of Blended Cements Made
from Rice Husk Ash
Author(s):
P. K. Mehta
Publication:
Journal Proceedings
Volume:
74
Issue:
9
Appears on pages(s):
440-442
Keywords:
acid resistance; alkali-aggregate reactions;blended cements; cements; compressive strength; economics;hydraulic cements; lime cements; mortars (material): research;rice; silica; waste treatment.
DOI:
10.14359/11022
Date:
9/1/1977
Abstract:
Rice husk ash containing silica in a highly reactive form is found to be an excellent ingredient for making either lime-rice husk ash or Portland-rice husk ash cements. Properties of both types of cements were investigated by standard ASTM test procedures. Due to relatively high water demand, the lime-rice husk ash cement developed lower compressive strengths. However, the strength characteristics are considered adequate for general masonry work. Portland-rice husk ash cements containing up to 50 percent ash showed compressive strengths which were considerably higher than the control portland cements even at early ages of 3 and 7 days, Test data is presented to show that a unique property of the cements containing rice husk ash is their excellent resistance to dilute organic and mineral acids.