Study of the substitution of limestone filler with pozzolanic additives in mortars

Katsioti, M; Gkanis, D; Pipilikaki, P; Sakellariou, A; Papathanasiou, A; Teas, Ch; Chaniotakis, E; Moundoulas, P; Moropoulou, A

dc.contributor.author	Katsioti, M	en
dc.contributor.author	Gkanis, D	en
dc.contributor.author	Pipilikaki, P	en
dc.contributor.author	Sakellariou, A	en
dc.contributor.author	Papathanasiou, A	en
dc.contributor.author	Teas, Ch	en
dc.contributor.author	Chaniotakis, E	en
dc.contributor.author	Moundoulas, P	en
dc.contributor.author	Moropoulou, A	en
dc.date.accessioned	2014-03-01T01:32:01Z
dc.date.available	2014-03-01T01:32:01Z
dc.date.issued	2009	en
dc.identifier.issn	09500618	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20015
dc.subject	Cement mortar	en
dc.subject	Fly ash	en
dc.subject	Modulus of elasticity	en
dc.subject	Perlite	en
dc.subject	Porosity	en
dc.subject.other	Bending strength	en
dc.subject.other	Cements	en
dc.subject.other	Compressive strength	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Elasticity	en
dc.subject.other	Fly ash	en
dc.subject.other	Hardening	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Mercury (metal)	en
dc.subject.other	Microstructure	en
dc.subject.other	Mortar	en
dc.subject.other	Pore size	en
dc.subject.other	Porosity	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Standards	en
dc.subject.other	Strength of materials	en
dc.subject.other	Thermoanalysis	en
dc.subject.other	Water content	en
dc.subject.other	Air contents	en
dc.subject.other	Cement mortar	en
dc.subject.other	Cylindrical specimens	en
dc.subject.other	DTA-TGA	en
dc.subject.other	Flexural strengths	en
dc.subject.other	Granulometric analysis	en
dc.subject.other	Limestone fillers	en
dc.subject.other	Mechanical behaviors	en
dc.subject.other	Mercury intrusion porosimetry	en
dc.subject.other	Modulus of elasticity	en
dc.subject.other	Perlite	en
dc.subject.other	Porosity and pore sizes	en
dc.subject.other	Pozzolanic additives	en
dc.subject.other	Scanning electrons	en
dc.subject.other	Sem	en
dc.subject.other	Thermal analysis	en
dc.subject.other	Water demands	en
dc.subject.other	Water retentions	en
dc.subject.other	Wet bulk densities	en
dc.subject.other	XRD	en
dc.subject.other	Young's elastic modulus	en
dc.subject.other	Young's Modulus	en
dc.subject.other	Plaster	en
dc.title	Study of the substitution of limestone filler with pozzolanic additives in mortars	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.conbuildmat.2008.08.034	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.conbuildmat.2008.08.034	en
heal.publicationDate	2009	en
heal.abstract	In this work several specimens of mortars were prepared with the addition of 5% fly ash and 5% perlite and their mechanical properties and porosity were tested and compared to those of mortars with no additives (reference sample). Specifically, it was studied the influence that these additives have on the elastic modulus and porosity of the mortars. After conducting chemical, mineralogical and granulometric analysis of additives, a series of measurements were made in fresh and hardened mortars. In fresh mortars, measurements were conducted according to the EN1015-2/3/8 Standards concerning flow value, wet bulk density, air content, water demand and water retention. In hardened mortars, the measurements were made in the age of 28 days. The rate of carbonation and the formation of hydraulic phases were investigated using XRD, scanning electron microscopy (SEM) and thermal analysis (DTA-TGA). Porosity and pore size distribution of mortars were investigated by mercury intrusion porosimetry. Compressive and bending strength and adhesion were measured according to the EN1015-11/12 Standards. Finally, the Young's elastic modulus was measured in cylindrical specimens sized 50/100 mm (diameter/height) according to ASTM C469-02 Standard. The results of the present study indicated a differentiation in the microstructure of the mortars that can be contributed to the use of different additives, such as fly ash and perlite. The three materials proved to be compatible in their mechanical behavior and appropriate for construction use. The modulus of elasticity value is related to the ratio of compressive to flexural strength and in particular, with the increase of the value of the ratio, the value of the Young's modulus of elasticity increases. The development of the microstructure represents a major parameter to improve existing mortars and to formulate new mortars. © 2008 Elsevier Ltd. All rights reserved.	en
heal.journalName	Construction and Building Materials	en
dc.identifier.doi	10.1016/j.conbuildmat.2008.08.034	en
dc.identifier.volume	23	en
dc.identifier.issue	5	en
dc.identifier.spage	1960	en
dc.identifier.epage	1965	en