Bond Strength Mechanism of Fly Ash Based Geopolymer Mortars: A Review

International Conference of Applied Science and Technology for Infrastructure Engineering

土木建筑工程;材料科学

Zailani, W.W.A.^1,2 ; Abdullah, M.M.A.B.^1,2 ; Razak, R.A.^1,2 ; Zainol, M.R.R.M.A.^3 ; Tahir, M.F.M.^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), P.O Box 77, D/A Pejabat Pos Besar, Kangar, Perlis

01000, Malaysia^1

Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), P.O Box 77, D/A Pejabat Pos Besar, Kangar, Perlis

01000, Malaysia^2

School of Civil Engineering, Universiti Sains Malaysia (USM), Engineering Campus, Nibong Tebal, P. Pinang

14300, Malaysia^3

关键词: Cement and concretes;    Compressive and bond strengths;    Concrete substrates;    Long term durability;    Low energy consumption;    Low-carbon emissions;    Surface preparation;    Sustainable materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/267/1/012008/pdf
DOI  :  10.1088/1757-899X/267/1/012008

来源: IOP

【 摘 要 】

Geopolymer possess many excellent properties such as high compressive and bond strength, long term durability, better acid resistance and also known as a "Sustainable Material" due to its low carbon emission and low energy consumption. Thus, it is a good opportunity to develop and explore not only for cement and concrete but also as geopolymeric repair materials. This reviews showed that good bonding properties between geopolymeric repair material and concrete substrate is important in order to acquire an enhanced resistance against penetration of harmful substances and avoiding respalling of the repair material by understanding the bonding behaviour. Bond strength depends to the properties of the repair materials itself and also the surface preparations of concrete substrate.