Utilization of treated spent liquor sludge with fly ash in cement and concrete

被引：18
|
作者：
Singhal, Anupam [1 ]
Tewari, V. K. [2 ]
Prakash, Satya [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Roorkee 247667, Uttar Pradesh, India
[2] Uttaranchal Tech Univ Dehradun, Dehra Dun, Uttar Pradesh, India
来源：
BUILDING AND ENVIRONMENT | 2008年 / 43卷 / 06期
关键词：
treated spent liquor sludge; fly ash; leaching;
D O I：
10.1016/j.buildenv.2007.02.002
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Design mix of M-20 concrete was prepared in the laboratory by substituting cement with the treated spent liquor sludge (TSLS) and fly ash. During the study, TSLS is fixed at 7.5% by weight, and fly ash is varied as 5%, 10%, 15%, 20% and 25% to study the possibility of replacement of cement. A 15% fly ash gives the optimum compressive strength. Addition of fly ash has resulted in complete removal of toxicity as per US EPA toxicity characteristic leaching procedure (TCLP) test. A total of 7.5% sludge and 15% fly ash in M-20 concrete is expected to save Rs. 252/m(3) (approximate to USD 5.3/m(3)) of concrete. (C) 2007 Elsevier Ltd. All rights reserved.
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页码：991 / 998
页数：8
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