Chemical interaction between EVA and Portland cement hydration at early-age

dc.creatorBETIOLI, A. M.
dc.creatorHOPPE FILHO, J.
dc.creatorCINCOTTO, M. A.
dc.creatorGLEIZE, P. J. P.
dc.creatorPILEGGI, R. G.
dc.date.accessioned2012-10-19T01:48:05Z
dc.date.accessioned2018-07-04T14:52:20Z
dc.date.available2012-10-19T01:48:05Z
dc.date.available2018-07-04T14:52:20Z
dc.date.created2012-10-19T01:48:05Z
dc.date.issued2009
dc.identifierCONSTRUCTION AND BUILDING MATERIALS, v.23, n.11, p.3332-3336, 2009
dc.identifier0950-0618
dc.identifierhttp://producao.usp.br/handle/BDPI/18819
dc.identifier10.1016/j.conbuildmat.2009.06.033
dc.identifierhttp://dx.doi.org/10.1016/j.conbuildmat.2009.06.033
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1615611
dc.description.abstractEthylene/vinyl acetate (EVA) copolymer. as latex or redispersable powder, is added to mortars and concrete to improve the fracture toughness, impermeability and bond strength to various substrates. The physical and chemical interactions were already proved after one day of hydration but during the first hour just the physical interaction was identified and some evidences of a chemical interaction. The aim of this paper was to evaluate the chemical interaction between EVA and Portland cement during the first hours of hydration in the thermogravimetric analysis. The results confirmed that the EVA hydrolyses in pH alkaline and consumes calcium ions from the solution, forming an organic salt (calcium acetate). reducing the calcium hydroxide content. And, its interaction occurred in the first 15 min of hydration. (C) 2009 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCI LTD
dc.relationConstruction and Building Materials
dc.rightsCopyright ELSEVIER SCI LTD
dc.rightsrestrictedAccess
dc.subjectEVA
dc.subjectCement
dc.subjectChemical interaction
dc.subjectThermogravimetry
dc.titleChemical interaction between EVA and Portland cement hydration at early-age
dc.typeArtículos de revistas


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