Influence of constituents on the properties of self compacting repair materials

O'FLAHERTY, F. J. and MANGAT, P. S. (1999). Influence of constituents on the properties of self compacting repair materials. In: 1st International RILEM Symposium on Self-Compacting Concrete. 263-274.

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Abstract

The paper presents the results of laboratory tests and field application in a highway bridge of self compacting repair materials. Three commercially available repair materials and one specially designed self compacting concrete were used in the study. The properties investigated were shrinkage, creep, elastic modulus and modulus of rupture. In addition, the field investigation determined flowing characteristics, compactibility and placing procedure of the flowing materials. The laboratory results show that the constituents of the mixtures greatly influence the basic properties of the materials. Inclusion of coarse aggregate in the mixture generally lowered the free shrinkage and modulus of rupture. Creep was highest in the material with polymer modification but creep recovery was lowest where large size aggregate was present. The elastic modulus was also influenced by the addition of coarse aggregate and copolymers The field results show that the materials can be placed and compacted satisfactorily without the aid of mechanical equipment.

Item Type: Conference or Workshop Item (Paper)
Additional Information: 1st International RILEM Symposium on Self-Compacting Concrete SEP 13-14, 1999 STOCKHOLM, SWEDEN
Research Institute, Centre or Group: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Infrastructure Management
Depositing User: Ann Betterton
Date Deposited: 04 Feb 2010 17:16
Last Modified: 04 Feb 2010 17:16
URI: http://shura.shu.ac.uk/id/eprint/1057

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