- Author
-
Fishburn, C. C.
- Title
- Water Permeability of Walls Built of Masonry Units.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
-
BMS 82,
April 15, 1942,
39 p.
- Keywords
-
walls
|
masonry
|
permeability
|
water
|
waterproofing
|
tests
- Abstract
- The water permeabilities of small masonry wall specimens were measured. Fourteen kinds of workmanship, 39 kinds of units, and 10 kinds of mortars were represented in a group of 140 walls. The permeability of the specimens was low when the vertical joints were filled or partly filled with mortar or grout, when the suction of the bricks was low, and when a mortar having a high water retentivity was used. The effect of water retentivity of the mortars on the permeability of the walls was greatest when the brick-suction was high. Mortar having a low water retentivity stiffened rapidly when placed in contact with dry, highly absorptive bricks, and units having a low suction floated out of alinement when placed in contact with such a mortar.