Durability of self-compacting rubberized concrete exposed to external sulphate attack

被引：6

作者：

Mallek, Jihen ^{[1
]}

Omikrine-Metalssi, Othman ^{[2
]}

Loulizi, Amara ^{[3
]}

Daoud, Atef ^{[1
]}

机构：

[1] Univ Sfax, Natl Sch Engineers Sfax, Geomat Civil Engn Struct & Environm Res Unit, Route Soukra Km 4, Sfax 3038, Tunisia

[2] Univ Gustave Eiffel, Cerema, UMR MCD, F-77454 Marne La Vallee, France

[3] Tunis El Manar Univ, Natl Engn Sch Tunis, Optimizat & Environm Sustainabil, BP 37 Belvedere, Tunis 1002, Tunisia

来源：

CASE STUDIES IN CONSTRUCTION MATERIALS | 2024年 / 20卷

关键词：

Self-compacting rubberized concrete; Sulphate attack; Mercury intrusion porosimetry; Thermogravimetric analysis; Compressive strength; WASTE TIRE RUBBER; CRUMB-RUBBER; PERFORMANCE;

D O I：

10.1016/j.cscm.2023.e02730

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study evaluated the performance of self-compacting rubberized concrete against external sulphate attack (ESA). cylinders 100 mm in diameter and 220 mm in length of control concrete (no rubber) and rubberized concrete were prepared and tested by visual inspection to identify visible degradation, length and mass variations of specimens, compressive strength, water accessible porosity, mercury intrusion porosimetry (MIP), and thermal decomposition obtained from thermogravimetric analysis (TGA). Results show that the incorporation of up to 15% rubber enhances the performance against ESA. Rubber reduced the expansion strains and compressive strength. All immersed specimens did not have visible cracks around them. Water porosity was found to increase or decrease versus the time of sulphate immersion. As a result, the impact of rubber on porosity variation is significantly less than the effect of the sulphatehydrate reaction. Thermogravimetric analysis showed a decrease in portlandite, which is not related to rubber incorporation.

引用

页数：14

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