ISSN 2096-4498
CN 44-1745/U
ISSN 2096-4498
CN 44-1745/U
Study of Properties of Modified Aqueous Epoxy Mortar Used in Rehabilitation of Tunnel Concrete Cracks
Received date: 2015-06-29
Revised date: 2016-01-20
Online published: 2016-04-27
A kind of modified aqueous epoxy mortar with high performance and high bond strength for rehabilitation of tunnel segment cracks is developed. The properties of the mortar, including flexural strength, compressive strength and bond strength, are studied; then the microstructure of the mortar is analyzed by means of scanning electron microscope (SEM) method. The testing results show that: 1) The flexural strength and compressive strength increase with the polymercement ratio increases; and then they decrease at a peak. 2) The bond strength decreases with the polymercement ratio increases. 3) Compared to the traditional mortar, the bond strength of modified mortar increases by 20%-40%.
JU Xiangwei , PENG Hailong , GAO Peiwei , YAO Yingzheng , MA Aiqun , ZHANG Jun . Study of Properties of Modified Aqueous Epoxy Mortar Used in Rehabilitation of Tunnel Concrete Cracks[J]. Tunnel Construction, 2016 , 36(4) : 398 -402 . DOI: 10.3973.j/issn.1672-741X.2016.04.005
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