Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
Online ISSN : 1884-7242
Print ISSN : 1882-2789
ISSN-L : 1882-2789
Research Papers
Effect of Different Exposure Conditions on Degradation Characteristics of Biodegradable Resin Mortar
Mariko SUZUKIKyoko KUBOTakeshi SUZUKIYutaka SAWADAToshinori KAWABATA
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2015 Volume 83 Issue 2 Pages I_19-I_24

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Abstract

In this study, we investigates the relationship between the degree of degradation of biodegradable resin mortar and exposure conditions in order to use the mortar for temporary materials such as piles and sheet piles. The differences in exposure conditions had a strong correlation with the degree of degradation in the specimens and the rate of mass change, and the surface degradation and the mass changing were caused by microbial biomass. However, the effect of the exposure conditions on strength reduction was small because microbial degradation was very low. Therefore the degradation mechanism of the initial exposure was due to the reduction in bond strength between the biodegradable resin and aggregates by water, and the surface degradation and gradual strength reduction after two months of exposure was due to microbial degradation.

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© 2015 The Japanese Society of Irrigation, Drainage and Rural Engineering
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