WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE

Kristiawan, S A and Sangadji, Senot (2006) WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE. MEDIA TEKNIK SIPIL, 6 (2). pp. 83-88. ISSN 1412-0976

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    Abstract

    Abstract Autogenous shrinkage of lightweight aggregate concrete (LAC) has been investigated with the aims of studying if water within LAC is effective in preventing autogenous shrinkage as suggested by Bentz’s model. By calculating ratios of water supplied by lightweight aggregate (LA) at various degrees of saturation to water required for maximum hydration and plotting these against ultimate values of autogenous shrinkage, it seems that only when the ratio is high (above 3.5) then the water within LAC supplied from LA is immediately ready to fill the empty pores and in turn, reducing autogenous shrinkage. The case is also confirmed when ratios of total void (porosity) of concrete to total volume of water within concrete are plotted against autogenous shrinkage. Keywords: autogenous shrinkage, Bentz’s model, lightweight aggregate, porosity.

    Item Type: Article
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Divisions: Fakultas Teknik > Teknik Sipil
    Depositing User: Users 853 not found.
    Date Deposited: 11 Jul 2013 12:53
    Last Modified: 11 Jul 2013 12:53
    URI: https://eprints.uns.ac.id/id/eprint/1290

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