The effect of paste volume and of water content on the strength and water absorption of concrete

Kolias, S; Georgiou, C

dc.contributor.author	Kolias, S	en
dc.contributor.author	Georgiou, C	en
dc.date.accessioned	2014-03-01T01:23:10Z
dc.date.available	2014-03-01T01:23:10Z
dc.date.issued	2005	en
dc.identifier.issn	0958-9465	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16855
dc.subject	Capillary absorption	en
dc.subject	Concrete strength	en
dc.subject	Paste content	en
dc.subject	Water content	en
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Cements	en
dc.subject.other	Costs	en
dc.subject.other	Durability	en
dc.subject.other	Elasticity	en
dc.subject.other	Porosity	en
dc.subject.other	Reduction	en
dc.subject.other	Standards	en
dc.subject.other	Strength of materials	en
dc.subject.other	Water absorption	en
dc.subject.other	Capillary absorption	en
dc.subject.other	Concrete strength	en
dc.subject.other	Paste content	en
dc.subject.other	Paste volume	en
dc.subject.other	Water content	en
dc.subject.other	Concrete aggregates	en
dc.title	The effect of paste volume and of water content on the strength and water absorption of concrete	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.cemconcomp.2004.02.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.cemconcomp.2004.02.009	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The W/C ratio is generally considered to be the governing parameter. which affects the strength and durability of concrete. In this paper, the effect of paste volume and of water content on capillary absorption and strength is investigated on concrete mixes having the same W-ef/C ratio. Four W-ef/C ratios (0.3, 0.4 0.5, 0.6) were used and for each W-ef/C ratio four mixes were prepared with effective water contents 140, 180, 220 and 260 l/m(3). It is found that although the W-ef/C ratio is kept constant, strength increases and capillary absorption decreases when the volume of the water or the volume of the paste decreases. The effect of the paste or water content by volume on strength is stronger for lower W/C ratios and for water contents at the lower or upper values (140 l/m(3), 260 l/m(3)) used in the investigation. Similarly capillary absorption is higher the higher is the value of W-ef/C ratio and, with constant W-ef/C ratio, increases approximately linearly as the paste content increases. The rate of increase is lower for lower values of W-ef/C ratio. (C) 2004 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Cement and Concrete Composites	en
dc.identifier.doi	10.1016/j.cemconcomp.2004.02.009	en
dc.identifier.isi	ISI:000226478000009	en
dc.identifier.volume	27	en
dc.identifier.issue	2	en
dc.identifier.spage	211	en
dc.identifier.epage	216	en