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Lightweight aggregates produced from sand sludge and zeolitic rocks

Volland, S. and Brötz, J. (2015):
Lightweight aggregates produced from sand sludge and zeolitic rocks.
In: Construction and Building Materials, Elsevier Science Publishing, pp. 22-29, 85, ISSN 09500618,
[Online-Edition: http://dx.doi.org/10.1016/j.conbuildmat.2015.03.018],
[Article]

Abstract

This paper reports the results of investigations on manufacturing lightweight aggregates from sand sludge with zeolitic rocks added to decrease the foaming temperature. Sand sludge is a waste product from crushing and screening plants for sand and gravel production. Introduction of 20% zeolitic rock into the raw mix composition reduces the temperature required to produce lightweight aggregates by 50 °C and improves their physical–mechanical characteristics. Lightweight aggregates using sand sludge with zeolitic rocks added have porous structures, with a total porosity of 60–70%; this material is recommended for use as lightweight aggregates for concrete and as heat-insulating filling.

Item Type: Article
Erschienen: 2015
Creators: Volland, S. and Brötz, J.
Title: Lightweight aggregates produced from sand sludge and zeolitic rocks
Language: English
Abstract:

This paper reports the results of investigations on manufacturing lightweight aggregates from sand sludge with zeolitic rocks added to decrease the foaming temperature. Sand sludge is a waste product from crushing and screening plants for sand and gravel production. Introduction of 20% zeolitic rock into the raw mix composition reduces the temperature required to produce lightweight aggregates by 50 °C and improves their physical–mechanical characteristics. Lightweight aggregates using sand sludge with zeolitic rocks added have porous structures, with a total porosity of 60–70%; this material is recommended for use as lightweight aggregates for concrete and as heat-insulating filling.

Journal or Publication Title: Construction and Building Materials
Volume: 85
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: Lightweight aggregates, Building materials, Processing, Raw materials, Porous materials
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Structure Research
13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute of Construction and Building Materials
Date Deposited: 08 Mar 2016 09:29
Official URL: http://dx.doi.org/10.1016/j.conbuildmat.2015.03.018
Identification Number: doi:10.1016/j.conbuildmat.2015.03.018
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