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2838468 
Journal Article 
Deterioration rate of hardened cement caused by high concentrated mixed acid attack 
Miyamoto, S; Minagawa, H; Hisada, M 
2014 
Yes 
Construction and Building Materials
ISSN: 0950-0618
EISSN: 1879-0526 
67 
47-54 
WOS:000343390500009 
The purposes of this study are to clarify the deterioration mechanism of hardened cement caused by high concentrated acid attack. As the result, In the case of high concentrated pure acid, deterioration rate varies greatly according to the kind of product of the attack of acid. This behavior can be explained by solubility of product. Next, in the case of which mixed acids containing H2SO4, HCl or HNO3 is attacking on hardened cement, the deterioration rate begins to increase when H2SO4 molar fraction decreases from between about 0.7 and 0.4-0.0. This behavior can be explained by chemical kinetics. (C) 2013 Elsevier Ltd. All rights reserved. 
Sulfuric acid; Hydrochloric acid; Nitric acid; Deterioration rate; Molar fraction; Chemical kinetics 
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