The sand and cement was dry blended until homogeneous. The gauging liquid was added until the desired consistency for laying was obtained. The wet mortar was cast in PVC rings of dimensions 75mm Dia. X 30Omm deep. The discs were de-moulded after hardening overnight and let cure at 2WC/50% R.H. for 28 days. All samples were cast in triplicate.
Sample Composition: The table shows thecomposition of the mortar samples.
TEST METHOD:1 10-
The capillary water absorption versus time is presented in the graph.
The results show that the inclusion of TECH-DRYAD Mortar Additive reduces the capillary water absorption of the mortar from 9.9% to 2. 1 % by mass. This represents an overall reduction of water absorption of 79%.