SYMPOSIA PAPER Published: 01 January 1999

Comparative Investigation of Plastic Properties and Water Permeance of Cement-Lime Mortars and Cement-Lime Replacement Mortars


A research program was developed to investigate relative properties of three mortars containing lime-replacement additives compared to the properties of four traditional portland cement-lime mortars used in masonry construction. Plastic and hardened properties were determined using standard ASTM test methods. The test program indicates that, although the three lime-replacement mortars have comparable compressive strengths to portland cement-lime mortars, they have significantly different water retention and air content percentages and, as tested, the lime-replacement mortars do not meet specification requirements of either ASTM or ICBO. In addition, masonry walls constructed with the three lime-replacement mortars studied in this program were less resistant to water penetration than walls constructed with portland cement-lime mortars. It is suggested that ASTM specifications and test methods currently under development consider the essential properties of water retention, air content, and water penetration resistance in addition to compressive strength for acceptance of lime-replacement materials.

Author Information

Schuller, MP
Atkinson-Noland & Associates, Inc., Boulder, Colorado
van der Hoeven, RSK
Atkinson-Noland & Associates, Inc., Boulder, Colorado
Thomson, ML
Building Construction, Chemical Lime Company, Henderson, Nevada
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Developed by Committee: E06
Pages: 145–162
DOI: 10.1520/STP13335S
ISBN-EB: 978-0-8031-5401-8
ISBN-13: 978-0-8031-2607-7