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US 10,029,946 B2Granted
Cement composition additive containing polycarboxylic acid copolymer, zinc oxide particles and gluconate
AssigneeLG Chem, Ltd.
InventorsHyo Min Kim, Chang Bum Ko, Imgyu Kim, Dong Jo Ryu
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Abstract
Disclosed are a cement composition additive with improved compressive strength and workability, including a polycarboxylic acid copolymer and/or a salt thereof, zinc oxide particles, and a predetermined amount of gluconic acid and/or a salt thereof, and a cement composition containing the same.
Claims17
A cement composition comprising:
- a polycarboxylic acid copolymer and/or a salt thereof;
- zinc oxide;
- gluconic acid and/or a salt thereof;
- and
- cement;
- wherein the gluconic acid and/or a salt thereof is present in an amount of 2 parts by weight to 7 parts by weight, with respect to 100 parts by weight of the cement.
3 more elements
Dependencies are inferred from the claim text.