2017 Volume 28 Pages 71-78
The objective of this study was to clarify the effects of angle of measurement on Surface Water Absorption Test (SWAT). There were several factors that could disturb accurate measurement of SWAT, such as moisture content of concrete, the difference between the temperature of the water used for SWAT and that of SWAT devices, and creep deformation of the rubber sponge attached to the water cup. The effects of these factors on SWAT were investigated and ways to eliminate the effects of those factors were considered. The effects of angle of measurement on SWAT were investigated using 3 different angles, 0°, 90°, 167°. It was verified by paired t-test under the conditions of this research that angle of measurement has no effect on SWAT results such as the water absorption rate at 10 minutes (p600) and the total absorption amount in 10 minutes.
