Strength, durability and appearance of low-carbon fair-faced concrete containing multiple mineral admixtures

被引：14

作者：

Fu, Xin ^{[1
]}

Li, Yan ^{[1
]}

Lin, Chang ^{[2
]}

Meng, Yutong ^{[3
]}

Yue, Qifeng ^{[1
]}

Liu, Hongyu ^{[1
]}

机构：

[1] Hainan Univ, Sch Civil & Architectural Engn, Haikou 570228, Peoples R China

[2] Hainan Univ, Sch Chem Engn & Technol, Haikou 570228, Peoples R China

[3] Beijing 3 Construct Engn Co Ltd, Beijing 100032, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 392卷

关键词：

Fair-faced concrete; Seashell powder; CaCO3-TiO2; composite; Orthogonal experiment; Durability; SILICA FUME; FLY-ASH; CEMENT; AGGREGATE; PARTICLES;

D O I：

10.1016/j.conbuildmat.2023.131838

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The feasibility of using fly ash, blast furnace slag, silica fume, and CaCO3-TiO2 composite and seashell powders as mineral admixtures in fair-faced concrete is investigated. A series of mix proportions were designed based on an orthogonal method. The effects of different mineral admixtures on the strength, durability and appearance properties were assessed by compressive strength, rapid chloride migration and grey-scale value tests, respec-tively. The results have shown that compressive strength is affected most by the content of seashell powder. Regarding chloride migration coefficient, blast furnace slag presents the most robust effect. Fly ash has the greatest influence on the grey-scale values at 180 d. Excessive seashell powder would lead to substantial decline in overall performance of fair-faced concrete.

引用

页数：10

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