Size Effect on Mechanical Properties of Cement MortarCorroded by Sodium Sulfate Solution

XIONG Liang-xiao; CHEN Cong

doi:10.11988/ckyyb.20160523

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Journal of Changjiang River Scientific Research Institute ›› 2017, Vol. 34 ›› Issue (9) : 145-149. DOI: 10.11988/ckyyb.20160523

HYDRAULIC STRUCTURE AND MATERIAL

Size Effect on Mechanical Properties of Cement MortarCorroded by Sodium Sulfate Solution

XIONG Liang-xiao^{1, 2, 3}, CHEN Cong⁴

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Abstract

To study the size effect on the mechanical properties of cement mortar corroded by sodium sulfate solution, uniaxial compression tests were carried out on cement mortar specimens of three different sizes being corroded for a certain time in sodium sulfate solution. The differences of specimens in uniaxial compressive strength, strain at peak stress and elastic modulus were analyzed. The research result shows that the effect of erosion on the uniaxial compressive strength increased first and then decreased with the size of specimen reaching a critical value. The differences of strain at peak stress and elastic modulus were less significant than uniaxial compressive strength.

Key words

cement mortar / sodium sulfate / size effect / compressive strength / strain at peak stress

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XIONG Liang-xiao, CHEN Cong. Size Effect on Mechanical Properties of Cement MortarCorroded by Sodium Sulfate Solution[J]. Journal of Changjiang River Scientific Research Institute. 2017, 34(9): 145-149 https://doi.org/10.11988/ckyyb.20160523

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