JCI Annual Convention in KOBE

Presentation information

The 40th JCI Technical Conference

A.Material & Construction » Nondestructive test & Assessment

Nondestructive test & Assessment III

Wed. Jul 4, 2018 3:30 PM - 5:45 PM Room 9 (9F EX2-B)

座長:大島義信(土木), 野中英(建築)

[1282] EFFECT OF MOISTURE CONTENT ON SURFACE WATER ABSORPTION TEST AND AIR PERMEABILITY TEST

Van Toan NGO1, Akira HOSODA2, Satoshi KOMATSU2, Norihiro IKAWA3 (1.Yokohama National University 2.横浜国立大学 3.八洋コンサルタント)

Keywords:air permeability, covercrete quality, moisture content, relative humidity (RH), SWAT, 含水率, 相対湿度, 表層品質, 表層透気試験, 表面吸水試験

The effects of moisture content on Surface Water Absorption Test (SWAT) and on Torrent air permeability test were investigated. Three mix proportions of concrete and three kinds of curing conditions were provided. Water absorption resistance p600 and air permeability kT showed almost constant values when moisture content was lower than a kind of threshold value . The threshold values in moisture content measured by two moisture meters were exhibited respectively both for water absorption and air permeability.