Experimental Study on Thermal Expansion Properties and Micro-Pore Texture of High Strength Concrete in Early Age

Abstract:

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The early age cracking of concrete is concerned with its thermal expansion properties, which is mainly reflected by the thermal expansion coefficient. Reasonably controlling the coefficient is an effective way of reducing cracks in the early age of concrete. While thermal expansion properties are related to the micro-pore texture characteristics of the concrete. Micro-pore textures of concretes of different mixing ratios and curing time were measured via mercury intrusion porosimetry (MIP), and the thermal expansion coefficient was determined by the comparator. The analysis of test results indicates the correlation between the parameters of micro-pore texture and thermal expansion properties, and also shows a highly positive correlation between the pore area and the thermal expansion coefficient. The results provide a solution for reducing the thermal expansion coefficient, thus controlling the early age cracking.

Info:

Periodical:

Advanced Materials Research (Volumes 250-253)

Edited by:

Guangfan Li, Yong Huang and Chaohe Chen

Pages:

497-501

DOI:

10.4028/www.scientific.net/AMR.250-253.497

Citation:

A. K. Wang et al., "Experimental Study on Thermal Expansion Properties and Micro-Pore Texture of High Strength Concrete in Early Age", Advanced Materials Research, Vols. 250-253, pp. 497-501, 2011

Online since:

May 2011

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Price:

$35.00

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