Flexural strength properties of porous concrete pavement incorporating nano black rice husk ash

11th International Conference on Geotechnical Engineering in Tropical Regions;1st International Conference on Highway and Transportation Engineering 2019

矿业工程;运输工程

Jaya, R.P.^1 ; Mohamad Idris, A.^1 ; Mohd Ibrahim, M.Y.^2 ; Hainin, M.R.^2 ; Yaacob, H.^2 ; Hassan, N.A.^2 ; Mohd Haziman, W.I.^3 ; Ekarizan, S.^4

Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang, Pahang, Gambang

26300, Malaysia^1

Faculty of Engineering, School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru

81310, Malaysia^2

Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor Bahru

86400, Malaysia^3

Institute for Infrastructure Engineering and Sustainability Management (IIESM), Universiti Teknologi MARA, Selangor, Shah Alam

40450, Malaysia^4

关键词: Activity index;    Black rice husk ashes;    Cementitious;    Conventional concrete;    Replacement materials;    Rice husk ash;    Strength property;    Water/binder ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/527/1/012044/pdf
DOI  :  10.1088/1757-899X/527/1/012044

来源: IOP

【 摘 要 】

Rice husk ash (RHA) as replacement material in the conventional concrete mixture has widely investigated around the world. However, there is a lack of study on nanoparticle produced from black rice husk ash (BRHA) used as a replacement material in porous concrete pavement mixture. Therefore, this study aims to evaluate the flexural strength properties of porous concrete pavement containing nano black rice husk ash. A nano BRHA dosage of 0, 10, 20, 30 and 40% by weight of binder used throughout the experiments. The total cementitious content used was 450 kg/m3 with a water/binder ratio of 0.34. It found that there appears to be an optimum replacement of approximately 10% nano BRHA, during which time the flexural strength and flexural activity index increase significantly.