Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash

›› 2012, Vol. 20 ›› Issue (1): 80-88.

• FESTSCHRIFT IN HONOR OF THE 90TH BIRTHDAY OF PROF. CHEN JIAYONG • Previous Articles Next Articles

Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash

ZHEN Guangyin¹, ZHOU Haiyan², ZHAO Tiantao¹, ZHAO Youca¹

1. The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engi-neering, Tongji University, Shanghai 200092, China;
2. Shanghai Laogang Waste Treatment Company, Shanghai 201302, China

Received:2011-07-01 Revised:2011-11-10 Online:2012-05-03 Published:2012-02-28
Supported by:
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)

Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash

甄广印¹, 周海燕², 赵天涛¹, 赵由才¹

1. The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engi-neering, Tongji University, Shanghai 200092, China;
2. Shanghai Laogang Waste Treatment Company, Shanghai 201302, China

通讯作者: ZHAO Youcai,zhaoyoucai@tongji.edu.cn
基金资助:
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)

Abstract

Abstract: 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(C₃A·3CS·H₃₂) 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.

Key words: dewatered sludge, refuse incineration bottom ash, controlled low-strength material, solidification/stabilization, leachability

摘要： 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(C₃A·3CS·H₃₂) 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.

关键词: dewatered sludge, refuse incineration bottom ash, controlled low-strength material, solidification/stabilization, leachability

CLC Number:

X705

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, 赵由才. Performance Appraisal of Controlled Low-strength Material Using Sewage Sludge and Refuse Incineration Bottom Ash[J]. , 2012, 20(1): 80-88.

References

1 Gabr,M.A.,Bowders,J.J.,"Controlled low-strength material using fly ash and AMD sludge",J.Hazard.Mater.,76,251-263(2000).
2 ACI,229R,Controlled Low Strength Materials,American Concrete Institute,Farmington Hills,MI,USA(1999).
3 Katz,A.,Kovler,K.,"Utilization of industrial by-products for the production of controlled low strength materials(CLSM)",Waste Manage.,24,501-512(2004).
4 Razak,H.A.,Naganathan,S.,Hamid,S.N.A.,"Performance appraisal of industrial waste incineration bottom ash as controlled low-strength material",J.Hazard.Mater.,172,862-867(2009).
5 Lachemi,M.,Sahmaran,M.,Hossain,K.M.A.,Lotfy,A.,Shehata,M.,"Properties of controlled low-strength materials incorporating cement kiln dust and slag",Cement Concrete Comp.,32,623-629 (2010).
6 Shon,C.S.,Mukhopadhyay,A.K.,Saylak,D.,Zollinger,D.G.,Mejeoumov,G.G.,"Potential use of stockpiled circulating fluidized bed combustion ashes in controlled low strength material(CLSM)mixture",Constr.Build.Mater.,24,839-847(2010).
7 Van Gerven,T.,Van Keer,E.,Arickx,S.,Jaspers,M.,Wauters,G.,Vandecasteele,C.,"Carbonation of MSWI-bottom ash to decrease heavy metal leaching in view of recycling",Waste Manage.,25,291-300(2005).
8 Lin,K.L.,Chang,W.C.,Lsin,D.F.,"Pozzolanic characteristics of pulverized incinerator bottom ash slag",Constr.Build.Mater.,22,324-329(2008).
9 Wang,K.S.,Chiou,I.J.,Chen,C.H.,Wan,D.,"Light weight properties and pore structure of foamed material made from sewage sludge ash",Constr.Build.Mater.,19,627-633(2005).
10 Chen,H.X.,Ma,X.W.,Dai,H.J.,"Reuse of water purification sludge as raw material in cement production",Cement Concrete Com.,32,436-439(2010).
11 Bertolini,L.,Carsana,M.,Cassago,D.,Curzio,A.Q.,Collepardi,M.,"MSWI ashes as mineral additions in concrete",Cement Concrete Res.,34,1899-1906(2004).
12 Lee,T.C.,Li,Z.S.,"Conditioned MSWI ash-slag-mix as a replacement for cement in cement mortar",Constr.Build.Mater.,24,970-979 (2010).
13 Naganathan,S.,Razak,H.A.,Hamid,S.N.A.,"Effect of kaolin addition on the performance of controlled low-strength material using industrial waste incineration bottom ash",Waste Manage.Res.,28,848-860(2010).
14 Gastaldi,D.,Canonico,F.,Boccaleri,E.,"Ettringite and calcium sulfoaluminate cement:investigation of water content by near-infrared spectroscopy",J.Mater.Sci.,44,5788-5794(2009).
15 Coumes,C.C.D.,Courtois,S.,Peysson,S.,Ambroise,J.,Pera,J.,"Calcium sulfoaluminate cement blended with OPC:A potential binder to encapsulate low-level radioactive slurries of complex chemistry",Cement Concrete Res.,39,740-747(2009).
16 Saikia,N.,Cornelis,G.,Mertens,G.,Elsen,J.,Van Balen,K.,Van Gerven,T.,Vandecasteele,C.,"Assessment of Pb-slag,MSWI bottom ash and boiler and fly ash for using as a fine aggregate in cement mortar",J.Hazard.Mater.,154,766-777(2008).
17 Winnefeld,F.,Lothenbach,B.,"Hydration of calcium sulfoaluminate cements—Experimental findings and thermodynamic modeling",Cement Concrete Res.,40,1239-1247(2010).
18 Perkins,R.B.,Palmer,C.D.,"Solubility of ettringite Ca₆[Al(OH)s]₂(SO₄)₃·26H₂O)at 5-75℃",Geochim.Cosmochim. Acta,63,1969-1980(1999).
19 Shen,W.G.,Zhou,M.K.,Ma,W.,Hu,J.Q.,Cai,Z.,"Investigation on the application of steel slag-fly ash-phosphogypsum solidified material as road base material",J.Hazard.Mater.,164,99-104(2009).
20 Cheng,T.W.,Chu,J.P.,Tzeng,C.C.,Chen,Y.S.,"Treatment and recycling of incinerated ash using thermal plasma technology",Waste Manage.,22,485-490(2002).

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

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics

Comments