Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash
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Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash
Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash
中国化学工程学报(英文版)2012年20卷第1期 页码:80-88
Affiliations:
1. The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engi-neering, Tongji University,Shanghai,China,200092
Supported by the Science and Technology Commission of Shanghai Municipality (08 DZ 1202802,09 DZ 1204105,09 DZ2251700);the National Natural Science Foundation of China (51008322)
甄广印, 周海燕, 赵天涛, 等. Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash[J]. 中国化学工程学报(英文版), 2012,20(1):80-88.
ZHEN Guangyin, ZHOU Haiyan, ZHAO Tiantao, ZHAO Youca. Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash[J]. , 2012, 20(1): 80-88.
甄广印, 周海燕, 赵天涛, 等. Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash[J]. 中国化学工程学报(英文版), 2012,20(1):80-88.DOI: 10.1016/S1004-9541(12)60366-8.
ZHEN Guangyin, ZHOU Haiyan, ZHAO Tiantao, ZHAO Youca. Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash[J]. , 2012, 20(1): 80-88.DOI: 10.1016/S1004-9541(12)60366-8.
Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash
This research evaluated the use of sewage sludge and refuse incineration bottom ash to replace calcium sulfoaluminate cement(CSA) in making controlled low-strength material(CLSM).Various properties of CLSM mixtures were characterized in terms of unconfined compressive strength
microstructure and leachability.It was found that the strength of tested CLSM mixtures ranged from 3.6 to 9.0 MPa
over the upper excavatable limit of 2.1 MPa.The micro-structural analysis revealed that sewage sludge and bottom ash were crystallochemically incorporated within CLSM systems by forming the needle-like ettringite(C
3
A·3CS·H
32
) with exiguous tubers via the typical Pozzolanic Reaction
leading to a dense and low-porosity microstructure.Furthermore
the toxicity characteristic leaching procedure evidenced that the cumulative leachable metals in the leachate were much below the regulatory thresholds.The potential for using sewage sludge and bottom ash in CLSM making was thus confirmed.
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