Flexural bond strength/low air/workability additive for mortar c

Details Flexural bond strength/low air/workability additive for mortar c Flexural bond strength/low air/workability additive for mortar c

1998-07-20

2000-05-30

Marcantoni, Paul

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106738, 106792, 106823, C04B 2600

Patent

active

060686960

ABSTRACT:
A mortar cement composition is composed of a cement or ground portland cement clinker, ground limestone and/or lime, sand, a sufficient amount of water to render the composition flowable, and at least one water-soluble polymer present in the amount having a lower limit of about 0.001 wt % and an upper limit of about 0.04 wt % based on total dry weight of the ingredients, with the proviso that the extent of adsorption of the polymer onto the cement is less than 50%, and wherein the resulting mortar has 8-16% air content and greater than 70 psi flexural bond strength. This mortar cement composition is for use in building structures in all seismic zones.

REFERENCES:
patent: 2934932 (1960-05-01), Wagner
patent: 4058405 (1977-11-01), Snyder et al.
patent: 4131474 (1978-12-01), Uchikawa et al.
patent: 4135940 (1979-01-01), Peltier
patent: 4708745 (1987-11-01), Schonhausen
patent: 5372642 (1994-12-01), Bartz et al.

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