Cementitious grout patching formulations and processes

Details Cementitious grout patching formulations and processes Cementitious grout patching formulations and processes

1987-06-30

1988-09-06

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106104, 106315, 106 89, C04B 2400, C04B 2404, C04B 732

Patent

active

047690771

ABSTRACT:
A dry cementitious composition which is shrinkage compensating and fast-setting for use in grouting repair of concrete surfaces. The cementitious composition comprises a hydraulic cement mixture of a major amount of a first portland cement constituent and a minor amount of a second expansive ettringite sulfoalumina cement constituent, an aggregate component, and an accelerator component. The accelerator component is a polyvalent metal salt of formic acid, specifically an alkaline earth metal formate such as calcium formate. Specific formulations include a mixture of Type I, Type IP, or Type III cement as a first constituent with Type K, Type M, or Type S cement as a second constituent, with the ratio of the first to the second constituent within the range of 2-3. The material may be employed to affect a grouting repair by mixing the dry formulation with water to provide a cementitious slurry which sets to provide a compressive strength of at least 4000 psi at 24 hours and a positive volume change of no more than 0.1% at 14 days curing.

REFERENCES:
patent: 3775143 (1973-11-01), Mikhailov et al.
patent: 3801338 (1974-04-01), Whitaker
patent: 3819393 (1974-06-01), Ono et al.
patent: 3852081 (1974-12-01), Lehman
patent: 3857714 (1974-12-01), Mehta
patent: 3861929 (1975-01-01), Deets et al.
patent: 4033282 (1977-07-01), Ray et al.
patent: 4045237 (1977-08-01), Gains et al.
patent: 4116706 (1978-09-01), Previte
patent: 4191584 (1980-03-01), Berry
patent: 4261755 (1981-04-01), Berry et al.
patent: 4350533 (1982-09-01), Galer et al.
patent: 4357166 (1982-11-01), Babcock
patent: 4507154 (1985-03-01), Burge et al.
Title No. 73-26, Proposed ACI Standard: Recommended Practice for the Use of Shrinkage-Compensating Concrete, American Cement Institute Committee 223, ACI Journal, Jun. 1976, pp. 319-339 (pp. 8, 10 and 13).
TXI Publication, A Guide for Testing, Handling and Placing Type K Cement Concrete, a Shrinkage Compensating Cement, pp. 1-14 (pp. 8, 10 and 13).

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