Deflection Control in Rigid Pavements

International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017

土木建筑工程;经济学

Varunkrishna, Nulu^1 ; Jayasankar, R.^1

Department of Civil Engineering, National Institute of Technology Tiruchirappalli, India^1

关键词: Concrete properties;    Deflection control;    Pavement material;    Perpetual pavements;    Polymer-modified;    Rigid pavements;    Styrene butadiene rubber;    Transportation system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012061/pdf
DOI  :  10.1088/1755-1315/80/1/012061

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The need for modern transportation systems together with the high demand for perpetual pavements under the drastically increasing applied loads has led to a great deal of research on concrete as a pavement material worldwide. This research indeed instigated many modifications in concrete aiming for improving the concrete properties. Pavement Quality Concrete requires higher flexural strength and fewer deflections in hardened state. Fiber reinforcement and latex modification are two reliable approaches serving the required purposes. The concrete made with these two modifications is called Polymer-modified Fiber-reinforced concrete. The present study deals with the usage of polypropylene as fiber and SBR (Styrene Butadiene Rubber) Latex as polymer. M30 grade concrete was modified by replacing cement with two different percentages of fiber (0.5%, 1.0% of weight of cement) and with three different percentages of SBR latex (10%, 15% & 20% of weight of cement).