Cement mixes and admixtures thereof

Details Cement mixes and admixtures thereof Cement mixes and admixtures thereof

1985-10-01

1986-11-18

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

106 90, 524 6, C04B 2418, C04B 2422

Patent

active

046236821

ABSTRACT:
Cement mix, particularly concrete mixes, for high compressive strength including early compressive strength, have extended workability without substantial loss in rate of hardening when containing an admixture combination of a sulfonated naphthalene-formaldehyde condensated and fractionated sulfonated lignin, such as ultrafiltered lignosulfonate.

REFERENCES:
patent: 3864290 (1975-02-01), Peppler et al.
patent: 3931083 (1976-01-01), Sasaki et al.
patent: 4088804 (1978-05-01), Cornwell et al.
patent: 4308069 (1981-12-01), Tsuji et al.
patent: 4367094 (1983-01-01), Fujimaru et al.
patent: 4460720 (1984-07-01), Gaidis et al.

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