SYMPOSIA PAPER Published: 01 January 1990

A Bentonite Clay Plasticizer in Masonry Mortars


Select clays modified in the production of proprietary masonry mortar plasticizers yield masonry mortars with improved workability while retaining other physical characteristics desired for masonry construction. The success of the combination has been demonstrated by increased usage during the past thirty years. Extensive product evaluation indicates the compound is economically and technically competitive with or superior to other masonry mortar plasticizers. This report traces the development of the product, general production of the plasticizer, quality control of product by the manufacturer, performance characteristics of mortars when tested in accordance with ASTM C 270, and other special performance characteristics of the mortar, singly or in masonry prism and wall assemblages.

Author Information

Dickelman, BK
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Developed by Committee: C15
Pages: 108–119
DOI: 10.1520/STP24976S
ISBN-EB: 978-0-8031-5124-6
ISBN-13: 978-0-8031-1453-1