Development of bio-based mortar system for concrete repair

Author(s): M.G. Sierra-Beltran, H.M. Jonkers
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 347- 348
Total Pages: 2
Language: English

Abstract: 
The overall performance of concrete repair systems depends to a great extent on the durability of and compatibility between the concrete substrate and the repair material. This paper focuses on the development of a concrete-compatible and sustainable bio-based repair system. To promote the compatibility, cement-based mortars have been chosen for this study. The shrinkage and mechanical behaviour of four different High-Performance Fibre-Reinforced Cementitious Composites (HPFRCC) have been studied. According to the test results, the material composed with cement, fly ash and limestone powder developed the lower drying shrinkage while exhibiting a compressive and flexural strength similar to other materials. Then, the limestone powder in this chosen material was partially replaced by a biobased agent and the mechanical properties of this new composite were studied. The bio based agent will promote the crack healing and improve the bonding with the concrete substrate.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00