STP1180

    Evaluation of ASTM E 514-90 Water Penetration and Leakage Test to Assess Performance of Integral Water Repellent Admixtures

    Published: Jan 1993


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    Abstract

    Integral water repellent admixtures have played an important role in improving performance of architectural concrete block by minimizing penetration of water into the concrete block wall. The ASTM E 514-90 Test Method for Water Penetration and Leakage through Masonry is commonly used to measure the performance of unit masonry subjected to a 4 hour simulated wind-driven rain. A laboratory test program was conducted to evaluate the effectiveness of the ASTM E 514-90 test method in determining performance of walls constructed with materials which contain integral water repellent admixtures, to determine the effect of extending the test period from 4 hours up to 72 hours and to compare the performance of four different integral water repellent admixtures.

    Suggestions are made regarding potential modifications that can be made to the E 514-90 test in order to effectively evaluate the performance of walls constructed with concrete masonry units and mortar which contain an integral water repellent admixture.

    Keywords:

    water penetration, leakage, leaks, permeance, permeability, integral water repellent admixture, concrete masonry


    Author Information:

    Chin, D
    Technical Supervisor, W. R. Grace & Co. - Conn., Cambridge, MA

    Gates, RE
    Operations Manager, Forrer Unit of W. R. Grace & Co., - Conn., Milwaukee, WI


    Paper ID: STP19621S

    Committee/Subcommittee: C15.03

    DOI: 10.1520/STP19621S


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