Comparison of shrinkage related properties of various patch repair materials

International Conference on Advanced Materials for Better Future 2016

Kristiawan, S.A.^1 ; Fitrianto, R.S.^2

SMARTCrete Research Group, Civil Engineering Department, Sebelas Maret University, Jl. Ir. Sutami No. 36A, Surakarta

57126, Indonesia^1

Civil Engineering Department, Sebelas Maret University, JL. Ir. Sutami No. 36A, Surakarta

57126, Indonesia^2

关键词: Concrete substrates;    Cracking tendency;    Differential shrinkage;    Free shrinkages;    Patch repair material;    Repair materials;    Unsaturated polyester resin;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/176/1/012017/pdf
DOI  :  10.1088/1757-899X/176/1/012017

来源: IOP

【 摘 要 】

A patch repair material has been developed in the form of unsaturated polyester resin (UPR)-mortar. The performance and durability of this material are governed by its compatibility with the concrete being repaired. One of the compatibility issue that should be tackled is the dimensional compatibility as a result of differential shrinkage between the repair material and the concrete substrate. This research aims to evaluate such shrinkage related properties of UPR-mortar and to compare with those of other patch repair materials. The investigation includes the following aspects: free shrinkage, resistance to delamination and cracking. The results indicate that UPR-mortar poses a lower free shrinkage, lower risk of both delamination and cracking tendency in comparison to other repair materials.