Volume-stable hardened hydraulic cement

Details Volume-stable hardened hydraulic cement Volume-stable hardened hydraulic cement

1987-03-24

1988-08-09

Capella, Steven

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106104, C04B 702

Patent

active

047625619

ABSTRACT:
The hardened volume change of concrete, grout, patching material, and water-proof material made from blends of Calcium Sulfate Hemihydrate, Portland Cement and Calcium Aluminate Cement can be reduced by using Portland Cement containing low levels of iron oxide. By lowering the normal level of iron oxide in the Portland Cement used in the above composition, it was also discovered that the compressive strengths dramatically increase as well as the bond to old concrete.

REFERENCES:
patent: 3973978 (1976-08-01), Nakagawa et al.
patent: 4045237 (1977-08-01), Gaines et al.
patent: 4157263 (1979-06-01), Gaines et al.
patent: 4357166 (1982-11-01), Babcock
patent: 4488909 (1984-12-01), Galer et al.

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