Effect of imitation fair-faced curing and protective coating on the durability of concrete

被引：4

作者：

Liu, Qingbo ^{[1
]}

Liao, Zhihong ^{[2
]}

Xiong, Yuanliang ^{[1
]}

Liu, Zhiyong ^{[1
]}

Zhang, Weibin ^{[1
]}

机构：

[1] Yantai Univ, Sch Civil Engn, Yantai 264005, Peoples R China

[2] Changsha Engn Construction Headquarters Guangzhou, Changsha 410007, Peoples R China

来源：

JOURNAL OF BUILDING ENGINEERING | 2023年 / 63卷

关键词：

Imitation fair-faced concrete; Curing; Protection; Decoration; Contact angle; POLYURETHANE POWDER COATINGS; SURFACE; PERFORMANCE; RESISTANCE;

D O I：

10.1016/j.jobe.2022.105540

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The insufficient curing and protection of fair-faced concrete results in its poor durability and decorative effect, thus probably causing substantial economic loss. In order to improve the durability and decoration of the concrete, the self-made imitation fair-faced concrete curing and protective coating was used to protect the concrete from degradation. The properties of the concrete with self-made imitation fair-faced coating were compared with two commercial curing and protective coatings. Experimental results reveal that the water retention rate and 28 d compressive strength ratio of concrete using nano-modified imitation fair-faced concrete curing and protective coating were 91.7% and 95.3% respectively. Besides, the water absorption rate was 16.9%, the contact angle was 141.99 degrees and the chloride absorption reduction rate was 75.5%. XRD and SEM-EDS showed that more hydration products such as CH were generated, indicating a high degree of hydration. The imitation fair-faced concrete curing and protective coating has the effect of inner curing and outer protection and improves the durability of concrete.

引用

页数：19

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