STP1356: New Polymer Additives for Mortar Cement

    Chu, SG
    Senior Research Scientist, Hercules Incorporated, Aqualon Division, Research Center, Wilmington, Delaware

    Podlas, TJ
    Research Scientist, Hercules Incorporated, Aqualon Division, Research Center, Wilmington, Delaware

    Young, TS
    Program Manager, Hercules Incorporated, Aqualon Division, Research Center, Wilmington, Delaware

    Pages: 12    Published: Jan 1999


    Abstract

    Mortar cement is a hydraulic cement similar to masonry cement in use and function, introduced to enhance one or more of the latter's properties, such as workability, durability, and water retention. In addition, mortar cement must have lower air content, and it has minimum flexural bond strength requirements. In response to fulfilling these needs, a new family of water soluble polymers has been developed. The new polymer additives are designed to optimize air void distribution and rheology of wet mortar, allowing improved workability with low air content. Furthermore, these polymers impart high water retention to the mortar, and allow the production of mortar with enhanced board life and flexural bond strength.

    Keywords:

    mortar cement, mortar rheology, flexural bond strength, workability, water retention, board life, air content, adhesive failure, cohesive failure


    Paper ID: STP14197S

    Committee/Subcommittee: C01.11

    DOI: 10.1520/STP14197S


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