Mechanical Properties of Autoclaved Shell-aggregate  

作　　者：马海龙 崔崇 

机构地区：[1]School of Materials Science and Engineering, Nanjing University of Science and Technology [2]Institute of Ethnic Preparatory Education, Ningxia University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2011年第4期723-729,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Fundation of China(51061015);the scientific Research Program of Jiangsu Economic Information Committee;the Program for Postgraduates Research Innovation in University of Jiangsu Province (CX10B_122Z);the Science and Technology Project of Jiangsu Province Construction System (JS2010JH22)

摘　　要：Waste solid propylene oxide sludge （POS） and fly ash were used as main raw material to prepare propylene oxide sludge aggregate （POSA） under the condition of autoclaved （180 ℃,1.0 MPa） curing. Three different test methods namely cylinder compressive strength （CCS）, individual aggregate compressive strength （IACS） and strength contribution rate （SCR） proposed were used to characterize the mechanical properties of the autoclaved POSA. POS shell-aggregate with SCR of 94% were prepared under the hydrothermal synthesis and autoclaved curing. The experimental results indicate that CCS and IACS have good consistency in characterizing mechanical properties of POSA. It is suggested that SCR not only can characterize the strength of POSA core, but also can reflect the effect of shell on the performance of POSA. By means of least square method, relationships between CCS and IACS, CCS and SCR, IACS and SCR were deduced.Waste solid propylene oxide sludge （POS） and fly ash were used as main raw material to prepare propylene oxide sludge aggregate （POSA） under the condition of autoclaved （180 ℃,1.0 MPa） curing. Three different test methods namely cylinder compressive strength （CCS）, individual aggregate compressive strength （IACS） and strength contribution rate （SCR） proposed were used to characterize the mechanical properties of the autoclaved POSA. POS shell-aggregate with SCR of 94% were prepared under the hydrothermal synthesis and autoclaved curing. The experimental results indicate that CCS and IACS have good consistency in characterizing mechanical properties of POSA. It is suggested that SCR not only can characterize the strength of POSA core, but also can reflect the effect of shell on the performance of POSA. By means of least square method, relationships between CCS and IACS, CCS and SCR, IACS and SCR were deduced.

关 键 词：propylene oxide sludge cylinder compressive strength strength contribution rate AGGREGATE individual aggregate compressive strength 

分 类 号：X703[环境科学与工程—环境工程]