A chemical-mechanics model for the mechanics deterioration of pervious concrete subjected to sulfate attack

被引：0

作者：

Song, Hui ^{[1
,2
]}

Yao, Jinwei ^{[3
]}

Luo, Yuming ^{[2
]}

Gui, Faliang ^{[2
]}

机构：

[1] Jiangxi Provincial Key Laboratory of Hydraulic & Civil Engineering Infrastructure Security, Nanchang Institute of Technology, Nanchang,330099, China

[2] College of Water Conservancy & Ecological Engineering, Nanchang Institute of Technology, Nanchang,330099, China

[3] Zhejiang Business Technology Institute, Ningbo,315012, China

来源：

Construction and Building Materials | 2021年 / 312卷

基金：

中国国家自然科学基金;

关键词：

Compressive strength - Concrete additives - Expansion - Tensile strength - Chemical attack - Durability - Sodium sulfate - Sulfur compounds - Corrosion - Concretes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Strength deterioration is one of the primary indicators to reduce the durability of pervious concrete under sulfate attack. This study aimed to establish a chemical–mechanical model to predict the strength evolution. The compressive strength and splitting tensile strength of pervious concrete in three different concentrations of sodium sulfate solution were obtained by experiments. A corrosion coefficient was adopted to evaluate the deterioration of compressive strength. The corrosion coefficient model was developed by considering the pore filling effect of expansion products and the corrosion damage induced by expansion stress. Compared with the experimental results, the developed model could better characterize the deterioration process of pervious concrete. Therefore, the model proposed in this paper provides a more reliable solution for the design and durability life assessment of pervious pavement engineering in sponge city construction projects. © 2021 Elsevier Ltd

引用

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