Evaluation of the size effect of waste tyre rubber particles on properties of lightweight rubber concrete

FIBRE CONCRETE 2019

土木建筑工程

Záleská, M.^1 ; Pavlíková, M.^1 ; ítek, D.^2 ; Pavlík, Z.^1

Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, Prague 6

166 29, Czech Republic^1

Department of Experimental Methods, Klokner Institute, Czech Technical University in Prague, Šolínova 7, Prague

166 08, Czech Republic^2

关键词: Eco-friendly materials;    Insulation performance;    Microstructural analysis;    Partial substitution;    Physical parameters;    Storage properties;    Structural applications;    Water-saturated state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/596/1/012043/pdf
DOI  :  10.1088/1757-899X/596/1/012043

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Due to the increasing amount of waste tyres and also to their properties, it is necessary to look for suitable ways for their recycling. For production of rubber concrete, the crushed tyre rubber of fraction 0/4 and 4/8 was used for partial substitution of silica sand at the rate of 10 % by mass. For comparison, a reference concrete without rubber aggregate was also studied. Both natural and rubber aggregate were first assessed in terms of their physical parameters and thermal transport and storage properties. Evaluation of produced lightweight rubber concrete included measurement of basic physical properties, strength tests, and microstructural analysis. Thermal properties were studied from dry to fully water saturated state. The experimental results showed that concrete with a small amount of rubber aggregate had improved thermal insulation performance and can serve as an eco-friendly material for structural applications in civil engineering.