Prediction of Changes in Physical Properties due to Leaching of Hydration Products from Concrete
Source abstract
Abstract
It is well known that degradation of properties such as increase in porosity of the surface layer and reduction in strength occur because of material transfer due to dissolution and diffusion of hydration products when concrete comes in contact with water. However, methods for quantitatively evaluating the changes in properties have not yet been established. The authors studied the applicability of immersion tests of cement paste using cation-exchange resin and studied actual concrete structures of ages ranging from 34 to 104 years. The authors also constructed a model of degradation for physical properties such as porosity and strength due to leaching, based on the results of these studies.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Magnesium Oxide Properties and Applications · Grouting, Rheology, and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Materials and Life Cycle Engineering Group, Kajima Technical Research Institute
Department of International Development Engineering, Tokyo Institute of Technology
References (6)
Show source-provided references
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4. Powers, T.C. (1962). “Physical properties of cement paste.”, Proceedings of the Fourth International Conference on the Chemistry of Cement, U.S. National Bureau of Standards Monograph 43, Vol.2, 577-613.
5. Watanabe, K, Yokozeki, K, Furusawa, Y, Otsuki, N. and Daimon, M. (2000). “Mechanisms of deterioration of cement composites due to leaching of calcium.” CANMET/ACI Durability of Concrete SP-192-70, Vol.2, 1155-1172.
6. Yokozeki, K., Watanabe, K., Furusawa, Y., Daimon, M., Otsuki, N. and Hisada, M. (2002). “Analysis of old structures and numerical model for degradation of concrete by calcium Ion leaching.” Concrete Library of JSCE, No.40, 209-226.