Investigating the Performance of Self-compacting Concrete Exposed to Hot Weather

被引：1

作者：

Salhi, Mohamed ^{[1
]}

Ben Addi, Hachemi ^{[2
]}

Boubekeur, Toufik ^{[3
]}

机构：

[1] Univ Relizane, Civil Engn Dept, Innovat Mat Lab & Renewable Energies, POB 4000, Relizane 48000, Algeria

[2] Univ Abbes Laghrour Khenchela, Fac Sci & Technol, Civil Engn Dept, Route Batna,POB 1252, Khenchela 40004, Algeria

[3] Tissemsilt Univ, Fac Sci & Technol, Civil Engn Dept, POB 182, Tissemsilt 38000, Algeria

来源：

PERIODICA POLYTECHNICA-CIVIL ENGINEERING | 2025年 / 69卷 / 01期

关键词：

self-compacting concrete; compressive strength; durability; porosity; PLASTIC SHRINKAGE CRACKING; COMPRESSIVE STRENGTH; QUATERNARY BINDERS; LIMESTONE MORTARS; CEMENT; DURABILITY; FILLERS; POWDER; ATTACK; PLAIN;

D O I：

10.3311/PPci.24092

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigates the behavior of concrete in a real environment with a temperature exceeding 35 degrees C in the shade. It focuses on the rheological behavior of self-compacting concrete (SCC) and its ability to maintain its self-compacting aspect over time, compared to ordinary concrete (C3). The research also examines the impact of limestone fillers on SCC's fluidity in hot climates. In the hardened state, the study emphasizes concrete durability against sulfate and acid attacks and their effects on its microstructure. Three types of concrete were studied such as SCC without addition (C1), SCC with 15% of limestone fillers (C2), and (C3), were tested in terms of fresh and hardened states, along with durability against acid and sulfate attacks. Results showed that SCC in a hot climate maintained its self-compacting properties up to 25 minutes after mixing. However, over time, the fluidity of SCC with limestone fillers decreased noticeably and faster. The aging of concrete exposed to sulfuric acid in a hot and dry climate for six months was more intense than with sodium sulfate.

引用

页码：251 / 262

页数：12

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