C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 40/00 (2006.01) B28B 5/00 (2006.01) B28C 5/40 (2006.01) B28C 7/06 (2006.01)
Patent
CA 2048468
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.
Hegger Robert C.
Sorenson John E.
Valle Stephen A.
Wydra Walter W.
Smart & Biggar
W.r. Grace & Co.,-Conn.
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