투수콘크리트의 공극막힘현상에 의한 투수성 검토

Abstract

This research thesis is aimed at reviewing on permeability of 'porous concrete' of which pore is clogged. To do it, this thesis has attempted as the following two. Firstly, this research thesis has changed the size of thick aggregates of 10mm, 19mm, 25mm and 40mm, besides the aggregates of 13mm used for pore concrete, as a whole, and then this thesis has made the analytic test on the required strength as the structure. The result indicates that the aggregates of 10, 13, 19 and 25mm have lived up to the required strength. Secondly, this research thesis judged that the functional deficiency of pore concrete resulted from clogged pore, So this thesis has attempted to make pore clogged through indoors test. And, it has measured the graph of pore concrete, which was constructed in Jejudo Island, with the aid of use period and coefficient of permeability, and then it has conducted the comparative analysis on the test on clogged pore. The result shows that the durability of permeability has spanned from 13, 22 months to 40 and 48 months. The aggregates of 25mm have had the longest durability. Also, through spot porous test, this thesis has estimated at 22.7 months the durability of porous concrete of 13mm built in Jeju Island. In conclusion, porous concrete is deemed to be appropriate for using thick aggregate of 25mm. This has the weakness to make exposure surface rough. But, two tier- structured permeability pavement of elasticity stratum with pore on the surface of porous concrete is deemed to improve such weakness.