Strength development of pervious concrete containing engineered biomass aggregate

Global Congress on Construction, Material and Structural Engineering 2017

材料科学;土木建筑工程

Sharif, A.A.M.^1 ; Shahidan, S.^1 ; Koh, H.B.^1 ; Kandash, A.^1 ; Mohd Zuki, S.S.^1

Jamilus Research Center, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Johor Bahru Batu Pahat, Malaysia^1

关键词: Coarse aggregates;    High porosity;    Normal concretes;    Permeability test;    Pervious concrete;    Storm-water managements;    Strength development;    Water permeability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/271/1/012002/pdf
DOI  :  10.1088/1757-899X/271/1/012002

来源: IOP

【 摘 要 】

Pervious concrete with high porosity has good permeability and low mechanical strengths are commonly used in controlling storm water management. It is different from normal concrete. It is only containing single size of coarse aggregate and has lower density compared with normal concrete. This study was focused on the effect of Engineered Biomass Aggregate (EBA) on the compressive strength, void ratio and water permeability of pervious concrete. EBA was prepared by coating the biomass aggregate with epoxy resin. EBA was used to replace natural coarse aggregate ranging from 0% to 25%. 150 mm cube specimens were prepared and used to study the compressive strength, void ratio and water permeability. Compressive strength was tested at 7, 14 and 28 days. Meanwhile, void ratio and permeability tests were carried out on 28 days. The experimental results showed that pervious concrete containing EBA gained lower compressive strength. The compressive strength was reduced gradually by increasing the percentage of EBA. Overall, Pervious concrete containing EBA achieved higher void ratio and permeability.