| Title |
A Study on the Brick Properties Influencing the Water Permeability of Masonry Walls |
| Abstract |
The purpose of this paper is to present the practical recommendations for improving the proof against water permeability of brick masonry walls which arise from the penetration of rain, the efflorescence of wall, and the degradation of plaster wall.The experimental factors concerned the physical properties of bricks such as the suction of brick, the wetting of brick, and the time of placting bricks on mortar are studied and discussed through the results of the experiments.There was a correlations between the bond strength and the proof against water permeability of brick masonry walls.The larger bond strength is to become the larger proof against water permeability.The suction of bricks is most important factors to concern the bond strength and the proof against water permeability.The mortar 1:0.25:3.75 which is mixed with the hydrated lime was superior the proof against water permeability to the mortar 1:3 which is not mixed with the hydrated lime.The water permeability ratio is decreased in 59% with A class bricks, 58% with B class bricks, and 56% with C class bricks when the air dried bricks are wetted.The proper time of placing brick on mortar to obtain the good bond strength and the proof against water permeability was within 15 seconds. |