Synergistic Effects of Diatomaceous Earth, Oxalic Acid and Ferric Sulfate on Ecological Porous Concrete: Mechanisms of Alkalinity Reduction and Enhancement

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成果类型：

期刊论文

作者：

Li, Sijiao;Yin, Jian*;Liu, Jue;Zhang, Wengang;Chen, Yihao;...

通讯作者：

Yin, Jian;Liu, J

作者机构：

[Yin, Jian; Li, Sijiao; Yin, J; Chen, Yihao; He, Shuai; Liu, Jue; Zhu, Yangyi] Cent South Univ Forestry & Technol, Sch Civil Engn, Changsha 410004, Peoples R China.

[Yin, Jian; Li, Sijiao; Chen, Yihao; He, Shuai; Liu, Jue; Zhu, Yangyi] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Engn Rheol, Changsha 410004, Peoples R China.

[Zhang, Wengang] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China.

通讯机构：

[Yin, J; Liu, J ] C

Cent South Univ Forestry & Technol, Sch Civil Engn, Changsha 410004, Peoples R China.

语种：

英文

关键词：

Ecological Porous Concrete;pH value;Mechanical properties;Water permeability coefficient;Alkali reduction mechanism;Enhancement mechanism

期刊：

Case Studies in Construction Materials

ISSN：

2214-5095

年：

2025

卷：

页码：

e04697

DOI：

10.1016/j.cscm.2025.e04697

基金类别：

National Natural Science Foundation of China [52178262]; Science and Technology Innovation Program of Hunan Province [2020RC4049]; Scientific Research Project of Hunan Provincial Depart-ment of Education [24A0201]; Hunan Provincial Graduate Student Research and Innovation Program [LXBZZ2024195]

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

The high alkalinity of silicate cement in Ecological Porous Concrete (EPC) inhibits plant growth, and synergistically regulating alkalinity and strength is challenging. In this study, a ternary composite alkalinity-reducing system of Diatomite-Oxalic Acid-Ferric Sulfate was proposed. The effects of the composite alkali-reducing system on the pH, mechanical properties, porosity, and permeability coefficient of EPC were systematically analyzed, and XRD, FTIR, TG, and SEM multiscale characterization were used to elucidate the mechanism of alkalini...

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Synergistic Effects of Diatomaceous Earth, Oxalic Acid and Ferric Sulfate on Ecological Porous Concrete: Mechanisms of Alkalinity Reduction and Enhancement

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