STUDY ON SHEET WATERPROOFING SYSTEM ADHERED WITH POLYMER CEMENT PASTE (PART 1): INFLUENCE OF MIX PROPORTION OF POLYMER CEMENT PASTE ON ADHESIVENESS AND WATERTIGHTNESS

Abstract

In this paper, two experiments were conducted to clarify the influence of polymer cement paste mix proportion on in-plane permeability resistance, adhesiveness and watertightness. The followings are concluded from the test results. If the quality of the underlying concrete is poor, fracture at the interface between substrate and hardened paste is likely to occur. If the paste is a softer mix proportion, adhesive failure and moisture migration are more likely to occur due to the formation of a fragile layer, presumably caused by bleeding. These problems can be improved by mixing a standard amount of polymer in this waterproofing system.