EFFECT OF CYCLIC NaCl SOLUTION IMMERSION CURING ON THE MECHANICAL PROPERTIES OF PLAIN CONCRETE

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materiali in tehnologije Pub Date : 2024-04-03 DOI:10.17222/mit.2023.794

Weisheng He, Shoujun Wu, Bo Zhang, Yiming Luo, Yanyu Liu, Guo Fu

引用次数: 0

Abstract

The effects of cyclic curing (CC) alternating between NaCl solution immersion and drying for 28 d on the microstructure, phase composition and mechanical properties of ordinary concrete are studied in comparison with those cured by standard curing using municipal water. Compared to standard curing, CC enhances the compressive strength, flexural strength and static compressive elastic modulus of concrete by (5.71, 11.14 and 8.06) %, respectively. Ca(OH)2 is significantly reduced, while C-S-H is increased, and a minor amount of 3Ca(OH)2·CaCl2·12H2O is formed. Hydration products become finer, more uniform and denser. The use of CC is proposed as it improves the strength.

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氯化钠溶液循环浸泡固化对普通混凝土力学性能的影响

与使用市政水进行标准养护的混凝土相比，研究了在氯化钠溶液浸泡和干燥交替进行 28 d 的循环养护（CC）对普通混凝土的微观结构、相组成和力学性能的影响。与标准养护相比，CC 可使混凝土的抗压强度、抗折强度和静压弹性模量分别提高 5.71%、11.14% 和 8.06%。Ca(OH)2 明显减少，而 C-S-H 增加，并形成少量 3Ca(OH)2-CaCl2-12H2O。水合产物变得更细、更均匀、更致密。建议使用 CC，因为它能提高强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materiali in tehnologije 工程技术-材料科学：综合

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.