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Effect of porosity on physical properties of lightweight cement composite with foamed glass aggregate

Abstract

This paper reports on a study of physical properties of lightweight cement composite. We investigate the possibility of replacing traditional aggregate with Granulated Ash Aggregate (GAA) and above all with Granulated Expanded Glass Aggregate (GEGA). For this purpose, 15 specimens of different percentage share of each aggregate in total aggregate volume were tested: 0%, 25%, 50%, 75% or 100% of foam glass aggregate (GEGA) partially replaced by ash aggregate (GAA) content in the cement composite. The water-cement ratio was constant and equal to w/c=0.5. Three grain sizes were analyzed: 2mm, 4mm (both GEGA) and 8mm (GAA). Numerical simulations of concrete specimen behavior under static loading were conducted with the implementation of elastic plastic model of each component. The study shows a significant impact of grain type and size on physical properties of lightweight concrete. Due to lower density of foamed glass aggregate, specimens shows various apparent density and porosity, which affect concrete properties. Compressive strength of concrete decreases with the increase in foam glass aggregate content; however specimens show different workability and in consequence porosity of lightweight concrete.

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Category:
Conference activity
Type:
materiały konferencyjne indeksowane w Web of Science
Title of issue:
II International Conference of Computational Methods in Engineering Science (CMES’17) strony 1 - 5
ISSN:
2271-2097
Language:
English
Publication year:
2017
Bibliographic description:
Kurpińska M., Ferenc T..: Effect of porosity on physical properties of lightweight cement composite with foamed glass aggregate, W: II International Conference of Computational Methods in Engineering Science (CMES’17), 2017, EDP Sciences,.
DOI:
Digital Object Identifier (open in new tab) 10.1051/itmconf/20171506005
Bibliography: test
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Gdańsk University of Technology

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