Properties of Sustainable High Strength Concrete with Waste Copper Slag  

作　　者：JAGAN Sivamani KARUPASAMY Narayanan DHARMARAJ R THIYANESWARAN Periyasamy KARTHIKEYAN Selvarajan NAVANEETHAN Kumaravalasu Subramaniam 

机构地区：[1]Department of Civil Engineering,Sona College of Technology,Salem,636005,India [2]Department of Civil Engineering,KPR Institute of Engineering and Technology,Coimbatore,641407,India [3]Kongu School of Architecture,Perundurai,638060,India [4]Department of Civil Engineering,Kongu Engineering College,Perundurai,638060,India

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第4期815-822,共8页武汉理工大学学报（材料科学英文版）

基　　金：Part by a Grant from Sona College of Technology;Salem。

摘　　要：The present work investigates copper slag as a substitute for river sand in high-strength concrete.The concrete mixtures were manufactured with 10%,30%,50%,70%,and 100%of copper slag to evaluate the mechanical and durability properties.The experimental results indicate that replacing copper slag above 50%affects the performance characteristics of the concrete due to its high angularity and lower water absorption characteristics.The strength of concrete with 50%copper slag is improved by 5.6%,whereas the strength of concrete with 100%copper slag is reduced by 2.75%at 28 days.However,increased curing to 90days improves the strength of the former by 7.16%and reduces the latter by only 0.23%.The water absorption,porosity,and rapid chloride penetration of the concrete mixtures with 100%copper slag are increased by 10.44%,13.20%,and 19.56%compared to control concrete.Micro-structural investigations through SEM infer higher replacement of copper results in higher void formation due to its reduced water absorption.

关 键 词：copper slag high strength concrete STRENGTH water absorption POROSITY 

分 类 号：TU528.31[建筑科学—建筑技术科学]