Stability and voids properties of hot mix asphalt containing black rice husk ash

National Colloquium on Wind and Earthquake Engineering

Ramadhansyah, P.J.^1 ; Irwan, R Noram^1 ; Idris, A Mohamad^1 ; Ezree, A Mohd^2 ; Khatijah, Ab Siti^1 ; Norhidayah, A.H.^3 ; Haryati, Y.^3

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

26300, Malaysia^1

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

86400, Malaysia^2

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

81310, Malaysia^3

关键词: Aggregate particles;    Asphalt coatings;    Black rice husk ashes;    Hot mix asphalt;    Mix designs;    Modified binders;    Space between;    Void space;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/244/1/012044/pdf
DOI  :  10.1088/1755-1315/244/1/012044

来源: IOP

【 摘 要 】

Asphalt durability is often linked to the thickness of the asphalt coating on the aggregate particles. In order to have an adequate film thickness in asphaltic concrete, there must be sufficient space between the aggregate particles in the compacted pavement. This void space is referred to as voids properties. Hence, this study investigates the performance of black rice husk ash as (BRHA) modified binder on stability and voids characteristics of hot mix asphalt. Four BRHA were used as in this study namely 0%, 2%, 4%, and 6% (by weight binder). The stability and voids properties of asphalt mixture were determined based on Marshall Mix design test. Test results show that the stability of hot mix asphalt incorporating BRHA was higher than the controlled mixture. The results also indicate that the addition of BRHA causes an increasing or decreasing in voids properties.