Victoria University TEST REPORTS
Aug 15, 1995
Subject: Water Absorption of concrete blocks
Water absorption data for:: Standard concrete block
Concrete block containing Tasco/Tech-Dry Block Emulsion
1. Description of substrates
2. Test method
1.DESCRIPTION OF SUBSTRATES
Four grey blocks of dimensions (WxDxL) 39x9x19 cm were supplied.
Two of the blocks were marked "Standard 1 and Standard 2" and the other two were marked "Treated 1 and Treated 2".
2. TEST METHOD
The blocks were oven dried 70C overnight, cooled and weighed. All blocks were placed in a water saturated polyurethane sponge in a water bath according to DIN52617. The mass of the blocks was measured at 2, 5 and 24 hours.
The capillary water absorption versus time is presented in Table 1.
|The results show that the inclusions of Block Emulsion reduces the capillary water absorption from 7.7% to 0.7% by mass. This represents an overall reduction of water absorbtion of 90%.
Signed : Dr.D A Kagi