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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(4) [August 2005] >
| Title: | Effect of carboxylic acids on the morphology, physical characteristics and hydration of  -hemihydrate plaster |
| Authors: | Singh, N B
Vellmer, C
Middendorf, B |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| IPC Code: | C04B11/00 |
| Abstract: | Hydration of -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. pH 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. |
| Page(s): | 337-344 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(4) [August 2005]
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