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Abstract
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Article Information:
Residual Compressive Strength of Laterized Concrete Subjected to Elevated Temperatures
Felix F. Udoeyo, Robert Brooks, Philip Udo-Inyang and Canice Iwuji
Corresponding Author: Robert M. Brooks
Submitted: 2010 March, 17
Accepted: 2010 April, 01
Published: 2010 May, 10 |
Abstract:
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This research presents the results of an experimental program to investigate the strength performance
of laterized concrete (LATCON) when subjected to elevated temperatures of 200, 400 and 600ºC. Six concrete
mixes incorporating 0, 10, 20, 30, 40 and 50% Laterite as a replacement by weight of sand was prepared. After
heat pretreatment specimens were cooled using either rapid cooling (water-cooling) or natural cooling
(air-cooling). An analysis of variance test shows that exposure temperature, cooling regime, and their
interaction have a significant influence on the compressive strength of the samples. When subjected to the
investigated temperatures specimens experienced strength losses that increased with temperature. This study
further reveals that air-cooled concrete specimens maintained higher residual strength values than water-cooled
specimens. A comparison of the residual compressive strength data obtained in this study with code provisions
in Eurocode and CEB design curve shows that these codes could be applied to LATCON subjected to
temperature below 400ºC.
Key words: Compressive strength, elevated temperatures, influence, laterized concrete, , ,
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Cite this Reference:
Felix F. Udoeyo, Robert Brooks, Philip Udo-Inyang and Canice Iwuji, . Residual Compressive Strength of Laterized Concrete Subjected to Elevated Temperatures. Research Journal of Applied Sciences, Engineering and Technology, (3): Page No: 262-267.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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