Cement substitution by a recycled cement paste fine: Role of the residual anhydrous clinker

被引：81

作者：

Bordy, Arthur ^{[1
]}

Younsi, Akli ^{[2
]}

Aggoun, Salima ^{[1
]}

Fiorio, Bruno ^{[1
]}

机构：

[1] Univ Cergy Pontoise, L2MGC, 5 Mail Gay Lussac, F-95031 Cergy Pontoise, France

[2] Univ La Rochelle, CNRS, LaSIE, UMR 7356, Ave Michel Crepeau, F-17042 La Rochelle 1, France

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 132卷

关键词：

Portland cement; Cement paste; Recycled cement paste fine; Anhydrous clinker; Mortar mixture; Hydration temperature; Portlandite content; Total porosity; Compressive strength; Carbonation depth; ACCELERATED CARBONATION TEST; CONCRETE; STRENGTH; MANUFACTURE; PERFORMANCE; EMISSIONS; INDUSTRY; DESIGN;

D O I：

10.1016/j.conbuildmat.2016.11.080

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper reports on an experimental study conducted on mortars designed with substitution of Portland cement by a recycled cement paste fine (RCPF) obtained froth crushing, grinding and 80-mu m sieving of a laboratory-made cement paste. The obtained results show that in terms of fineness, particle size distribution, CaCO3 content, hydration kinetics, total porosity and mechanical properties, the use of RCPF as partial substitution of cement should not provide any additional filler effect and nucleation sites compared to the replaced cement. The results show also that RCPF contains around 24% of a reactive residual anhydrous clinker which contributes in the hydration process, the mechanical properties and the resistance against carbonation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1 / 8

页数：8

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