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Title

Role of Combined Water for Determining the Mechanical Behaviour of Class C Fly Ash Belite Cements

AuthorsGoñi Elizalde, Sara; Guerrero Bustos, Ana María
KeywordsBelite Cement
Combined Water
Mechanical Strength
Thermal Analysis
Issue DateJan-2010
PublisherTrans Tech Publications
CitationMaterials Science Forum 636-637: 1252-1257 (2010)
AbstractThe physically-chemically bounded water is an important parameter directly related to the gain of mechanical strength during the hydration of cements. In this work, quantitative determinations of the physically - chemically bounded water of two types of belite cements, called FABC-2-W and FABC-2-N, were carried out by means of thermogravimetry analyses during a period of 180 days of hydration. The hydrated products were characterized by X-ray diffraction and BET surface area. Important direct quantitative correlations were obtained between the combined water and technological characteristics of cements such as the compressive mechanical strength or the BET surface area. TG measurements for hydrated FABC-2-W and FABC-2-N cements were carried out in flowing nitrogen on a TGA/SDTA 851 (Mettler) in the temperature range from 25 to 1100°C with heating rate of 10 °C min-1 and nitrogen flow rate of 25 mL min-1. BET surface area was measured using nitrogen adsorption at 77 K, on an ASAP 2010 (Micromeritics).
Publisher version (URL)https://doi.org/10.4028/www.scientific.net/MSF.636-637.1252
URIhttp://hdl.handle.net/10261/216125
DOI10.4028/www.scientific.net/MSF.636-637.1252
ISSN0255-5476
E-ISSN1662-9752
Appears in Collections:(IETCC) Artículos
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