Investigation on dynamic performance of concrete column crumb rubber steel and fiber concrete

Global Congress on Construction, Material and Structural Engineering 2017

材料科学;土木建筑工程

Siti Nurul Nureda, M.Z.^1 ; Mariyana, A.K.^1 ; Iqbal Khiyon, M.^1 ; Abdul Rahman, M.S.^1 ; Nurizaty, Z.^1

Faculty of Civil Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor

81310, Malaysia^1

关键词: Catastrophic failures;    Dynamic performance;    Dynamic resistance;    Fine crumb rubbers;    Loading capacities;    Quasi-brittle failure;    Seismic Performance;    Steel fiber concrete;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/271/1/012082/pdf
DOI  :  10.1088/1757-899X/271/1/012082

来源: IOP

【 摘 要 】

In general the Normal Concrete (NC) are by quasi-brittle failure, where, the nearly complete loss of loading capacity, once failure is initiated especially under dynamic loadings. The significance of this study is to improve the damping properties of concrete structure by utilization of the recycled materials from waste tires to be used in concrete as structural materials that improve seismic performance. In this study, the concrete containing 10% of fine crumb rubber and 1 % volume fraction of steel fiber from waste tires is use to investigate the dynamic performance (natural frequency and damping ratio).A small scale column were fabricated from Treated Crumb Rubber and Steel Fiber Concrete (TCRSFC) and NC were cast and cured for 28 days to investigate the dynamic performance. Based on analysis, dynamic modulus, damping ratio and natural frequency of TCRSFC has improved considerably by 5.18%, 109% and 10.94% when compared with NC. The TCRSFC producing concrete with the desired properties as well as to introduce the huge potential as dynamic resistance structure from severe damage especially prevention on catastrophic failure.