Rheology of fresh concretes with recycled aggregates

被引：70

作者：

Faleschini, Flora ^{[1
]}

Jimenez, Cristian ^{[2
]}

Barra, Marilda ^{[2
]}

Aponte, Diego ^{[2
]}

Vazquez, Enric ^{[2
]}

Pellegrino, Carlo ^{[1
]}

机构：

[1] Univ Padua, Dept Civil Environm & Architectural Engn, I-35131 Padua, Italy

[2] Univ Politecn Cataluna, Dept Construct Engn, ETS Ingenieros Caminos Canales & Puertos Civil En, ES-08034 Barcelona, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 73卷

关键词：

Rheology; Workability; Recycled aggregate concrete; Coarse recycled concrete aggregate; Waste management; SELF-COMPACTING CONCRETE; ARC FURNACE SLAG; MECHANICAL-PROPERTIES; BINGHAM PARAMETERS; DURABILITY; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2014.09.068

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The most frequently used measure of rheology is the slump test, which evaluates workability. Since this value is often operator-sensitive, a more quantitative estimate can be derived in terms of fundamental physical quantities, such as plastic viscosity and yield stress. The higher heterogeneity in terms of experimental slump measure occurs when recycled aggregate concrete (RAC) is tested. In this work, 16 recycled mixes were analysed with two aggregates proportioning methods and results were compared with four controls: rheological parameters were measured with a ConTec BML Viscometer 3. The results represent a valid tool for better understanding of fresh RAC rheology. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：407 / 416

页数：10

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