EFFECTS OF REPAIR CONCRETE ON BOND MECHANICAL PROPERTIES

Author(s): Shuo Feng, Huigang Xiao and Hui Li
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 600-609
Total Pages: 10
Language : English

Abstract: Concrete is vulnerable to various environmental factors during service. It is necessary to
repair the concrete to improve the durability and bearing capacity. The repair material has a
great influence on the bond properties. In this paper, the effects of united expansion agent,
nano-SiO2 and carbon fibers length 10mm on bond properties between repair concrete and
substrates were investigated. The compressive, flexural mechanicals and dry shrinkage of the
repaired materials were also studied. Results suggest that the addition of united expansion
agent and carbon fibers to repair material can improve the interfacial properties and the
ductility of split damage. The incorporation of nano-SiO2 in repair material can reduce the
repair concrete shrinkage.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00