Method for modifying concrete properties
AssigneeW.R. Grace & Co.-Conn.
InventorsStephen A. Valle, John E. Sorenson, Robert C. Hegger, Walter W. Wydra
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Abstract
The present invention relates to a method for modifying the properties of a concrete by introducing a solid admixture, contained in a paper package, into a fresh concrete, said solid admixture being selected from the group consisting of air-entraining admixtures, air detrainer admixture, accelerating admixture, alkali-reactivity reducer, superplasticizer, pumping aids, water-reducing admixture, corrosion inhibitor, permeability reducer, fibers, and mixtures thereof; and mixing the fresh concrete in a batch type mixer for sufficient time to cause the packaging material to disintegrate and distribute the admixture relatively uniformly throughout the fresh concrete.
Claims11
A method for modifying the properties of concrete, comprising the steps of:
- placing one or more closed non-water-soluble paper packages into a fresh concrete, said packages containing a solid admixture including air-entraining admixtures, air detrainer admixture, accelerating admixture, alkali-reactivity reducer, superplasticizer, pumping aids, water-reducing admixture, corrosion inhibitor, permeability reducer, or mixtures thereof;
- and
- agitating the fresh concrete to cause the packaging material to disintegrate and distribute the admixture relatively uniformly throughout the fresh concrete.
A method for modifying the properties of concrete, comprising the steps of:
- placing one or more closed non-water-soluble paper packages into fresh concrete, said packages containing a solid admixture including an air-entraining admixture, an air-detrainer admixture, an accelerating admixture, an alkali-reactivity reducer, a superplasticizer, a pumping aid, a water-reducing admixture, a corrosion inhibitor, a permeability reducer, or combinations thereof;
- and
- agitating the fresh concrete to cause the non-water-soluble packaging material to disintegrate by fragmenting into pieces which are not detrimental to the concrete and to distribute the admixture relatively uniformly throughout the fresh concrete.
Dependencies are inferred from the claim text.