C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/02 (2006.01) C04B 24/20 (2006.01) C04B 28/02 (2006.01) C04B 40/00 (2006.01)
Patent
CA 2214378
A cement admixture composed of a mixture of lower alkyl ether oxyalkylene adducts with a sulfonated organocyclic material to provide cement compositions of mortar and concrete which inhibit drying shrinkage while attaining very high slump and/or increased compressive strength.
L'invention porte sur un adjuvant cimentaire composé d'un mélange d'additifs à base d'oxyde d'alkylène d'éther alcoylique inférieur et d'un matériau organocyclique sulfoné, permettant d'obtenir des compositions cimentaires pour mortier ou béton qui empêchent la contraction par retrait hydraulique tout en octroyant une très importante résistance à l'affaissement et/ou en améliorant la résistance à la compression.
Berke Neal Steven
Dallaire Michael Paul
Kerkar Awdhoot Vasant
Gowling Lafleur Henderson Llp
W.r. Grace & Co.,-Conn.
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