STRENGTH CHARACTERISTICS OF MEDIUM WORKABILITY ORDINARY PORTLAND CEMENT-RICE HUSK ASH CONCRETE

被引：28

作者：

IKPONG, AA

OKPALA, DC

机构：

[1] Department of Building, University of Jos, Jos

来源：

BUILDING AND ENVIRONMENT | 1992年 / 27卷 / 01期

关键词：

D O I：

10.1016/0360-1323(92)90014-G

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Variation in strength of medium workability concrete was investigated when rice husk ash (RHA) replaces some of the ordinary Portland cement (OPC). The strengths investigated were 20, 25, 30 and 40 N/mm2. Compressive strength results obtained for the mixes designed for 28-day strengths of up to 30 N/mm2 show that the designed strengths were achieved, for up to 40% replacement of cement with RHA. For the mixes designed for 40 N/mm2 the designed strength could not be achieved at 28 days, indicating that strength values greater than 30 N/mm2 may not be achieved, unless at ages far beyond 28 days, when RHA is incorporated. Also mathematical relationships giving mix design parameters for OPC/RHA concrete were established.

引用

页码：105 / 111

页数：7

共 14 条

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