Use of clay in the manufacture of lightweight aggregate

Article

Ayati, B., Ferrándiz-Mas, Veronica, Newport, D. and Cheeseman, Christopher 2017. Use of clay in the manufacture of lightweight aggregate. Construction and Building Materials. 162, pp. 124-131. https://doi.org/10.1016/j.conbuildmat.2017.12.018
AuthorsAyati, B., Ferrándiz-Mas, Veronica, Newport, D. and Cheeseman, Christopher
Abstract

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.

JournalConstruction and Building Materials
Journal citation162, pp. 124-131
ISSN0950-0618
Year2017
PublisherElsevier
Digital Object Identifier (DOI)https://doi.org/10.1016/j.conbuildmat.2017.12.018
Web address (URL)https://doi.org/10.1016/j.conbuildmat.2017.12.018
Publication dates
Online15 Dec 2017
Publication process dates
Deposited04 Jan 2018
Accepted03 Dec 2017
Copyright information© 2017 Elsevier
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