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Title: Effect of carboxylic acids on the morphology, physical characteristics and hydration of <img src='/image/spc_char/alpha.gif' border=0>-hemihydrate plaster
Authors: Singh, N B
Vellmer, C
Middendorf, B
Issue Date: Aug-2005
Publisher: CSIR
Series/Report no.: C04B11/00
Abstract: Hydration of <img src='/image/spc_char/alpha.gif' border=0>-hemihydrate in the presence of different concentrations of tartaric, succinic, malic and citric acids was studied. All the acids, except tartaric acid, retard the hydrations. <i style="">p</i>H measurements have shown that during hydration acids are adsorbed at solid surfaces, leading to the retardation of hydration. E-modulus of elasticity, tensile strengths, total porosity, compressive strength, morphological and temperature changes during hydration were studied. It is found that morphological changes control the strength properties.
Description: 337-344
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.12(4) [August 2005]

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