Use of clay in the manufacture of lightweight aggregate

被引：121

作者：

Ayati, Bamdad ^{[1
]}

Ferrandiz-Mas, Veronica ^{[2
,3
]}

Newport, Darryl ^{[1
]}

Cheeseman, Christopher ^{[2
]}

机构：

[1] Univ East London, Sustainabil Res Inst, London E16 2RD, England

[2] Imperial Coll London, Dept Civil & Environm Engn, London SW7 2BU, England

[3] Univ Bath, Dept Architecture & Civil Engn, Bath BA2 7AY, Avon, England

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 162卷

关键词：

Clay; Lightweight aggregate; Resource efficiency; Circular economy; Low-density; WATER RESERVOIR SEDIMENT; SEWAGE-SLUDGE ASH; FLY-ASH; CONSTRUCTION MATERIALS; PELLETIZATION PROCESS; LEACHING BEHAVIOR; HARBOR SEDIMENT; RIVER SEDIMENT; HEAT-TREATMENT; WASTE GLASS;

D O I：

10.1016/j.conbuildmat.2017.12.018

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Clay is used as a raw material for the production of lightweight aggregates because it is readily processed into suitable granules and forms low-density but high strength aggregate particles when sintered at relatively low temperatures. The use of waste clay generated by major infrastructure development projects to make lightweight aggregate has a positive environmental impact and contributes towards a more circular economy. This paper reviews the manufacturing process used to produce lightweight aggregates from clay and the influence of processing conditions on properties. It also reviews secondary materials that have been incorporated into clays to produce lightweight aggregates. Additional research is required to improve understanding of the effects of composition and production parameters on the pore structure, density, water adsorption and strength of clay derived lightweight aggregates. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：124 / 131

页数：8

共 58 条

[1] Comparison of rapid and slow sintered pulverised fuel ash [J].