Develop a water absorption test suitable for both cold and hot liquid-applied materials standards. Bentonite

Develop needed test methods, then a material specification. Needed test methods include hydrostatic pressure resistance, compatibility with saltwater or other contaminants, resistance to premature hydration, and resistance to damage from concrete placement.


The authors wish to thank their colleagues at Wiss, Janney, Elstner Associates, Inc. for their advice and encouragement. We are grateful to Rainbow Restoration (San Francisco, California) for preparing test samples, and to Testing Engineers, Inc., (San Leandro, California) for providing facilities for some of the testing. We also wish to acknowledge the inspiration provided by Carl Cash, the former chair of ASTM Committee D08, who challenged the waterproofing subcommittee (D08.22) to write a standard that defined the essential properties of waterproofing.