Effect of Hot Environment on Strength and Heat Transfer Coefficient of Nano-Clay Concrete Paper Title - Journal of Materials Science and Chemical Engineering

MSCE > Vol.4 No.7, July 2016

Journal of Materials Science and Chemical Engineering

Volume 4, Issue 7 (July 2016)

ISSN Print: 2327-6045 ISSN Online: 2327-6053

Google-based Impact Factor: 0.72 Citations

Effect of Hot Environment on Strength and Heat Transfer Coefficient of Nano-Clay Concrete Paper Title ()

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DOI: 10.4236/msce.2016.47007 1,845 Downloads 2,878 Views Citations

Author(s)

Wei-Chien Wang, Shao-Yu Wang, Cheng-Hsun Lin

Affiliation(s)

Department of Civil Engineering, Chung Yuan Christian University, Taoyuan City.

ABSTRACT

This study selected water-cement ratio 0.5 and slump 16 cm for ACI mix design, and used nano- clay to replace 0.1%, 0.3% and 0.5% of cement by weight to make cylinder and angle column specimens. The effects of different high temperatures on the compressive strength and heat transfer coefficient were tested, and the ignition loss of nano-clay cement paste was measured. The results showed that an appropriate replacement of nano-clay for 0.3% - 0.5% of cement can enhance the strength and heat transfer coefficient of concrete, especially 0.3% replacement. The 0.1% nano- clay replacement for cement reduces the strength and heat transfer coefficient of concrete. When the ambient temperature exceeds 300?C, the nano-clay concrete strength begins to decline, and the heat transfer coefficient decreases greatly, the effect of hot environment on the strength trend of nano-clay concrete is similar to that on normal concrete. When the nano-clay replaces cement by 0% - 0.5%, the ignition loss is approximately in exponential and logarithmic relationships to the compressive strength respectively when the ignition loss is smaller than and greater than 6%.

KEYWORDS

Nano-Clay, Cement Paste, Concrete, Ignition Loss

Share and Cite:

Wang, W. , Wang, S. and Lin, C. (2016) Effect of Hot Environment on Strength and Heat Transfer Coefficient of Nano-Clay Concrete Paper Title. Journal of Materials Science and Chemical Engineering, 4, 45-52. doi: 10.4236/msce.2016.47007.

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