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Loading Rate Effects and Sulphate Resistance of Fibre Reinforced Cement-based Foams Open Access


Other title
drop-weight impact
strain-rate sensitivity
stress-rate sensitivity
sulphate resistance
cement-based foams
Type of item
Degree grantor
University of Alberta
Author or creator
Mamun, Muhammad
Supervisor and department
Bindiganavile, Vivek (Civil and Environmental Engineering)
Examining committee member and department
Liu, Qingxia Chad (Chemical and Materials Engineering)
Al-Hussein, Mohamed (Civil and Environmental Engineering)
Department of Civil and Environmental Engineering

Date accepted
Graduation date
Master of Science
Degree level
This study describes the strength, toughness and strain-rate sensitivity of fibre-reinforced cement-based foams subjected to variable loading rates. Drop-weight impact tests were conducted on beams with cast density between 475 - 1200 kg/cu.m. The study shows that under quasi-static loading, the compressive strength, elastic modulus and the modulus of rupture of plain mixes scale with the square of the relative density. On the other hand, the flexural toughness factor scaled linearly with it. Fibres were seen to increase the flexural strength at all rates of loading, regardless of cast density. Further, cement based foams were seen to be strain-rate sensitive. The resistance of cement-based foams to sulphate exposure was also investigated. Heavier cement-based foams are more susceptible to sulphate attack and perform poorly with an increase in the duration of exposure when compared to the lightest mix which showed improved responses up to 30 days of exposure due to self-healing.
License granted by Muhammad Mamun ( on 2010-09-24T02:12:23Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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