US 2018/0362404 A1

Cement admixture

(22) 06.12.2016

(43) 20.12.2018

(57) Conventional methods suffer from unsatisfactory performance of the dehydration-preventing agent at a high temperature, and the present invention provides a cement admixture exhibiting an excellent dehydration-preventing effect at a high temperature. The cement admixture of the present invention includes a crosslinked product of a modified polyvinyl alcohol-based resin, wherein the dissolution rate of 1 g of the crosslinked product of a modified polyvinyl alcohol-based resin for 1 liter of water at 70° C. is 50 % or less.

(71) The Nippon Synthetic Chemical Industry Co., Ltd., Osaka (JP)

(73) The Nippon Synthetic Chemical Industry Co., Ltd., Osaka (JP)

Issue 7-8/2018 KR101839251 (B1)

Alkali gypsum and method for producing alkaline gypsum using de-sulfurized slag admixture slagcement and concrete composition comprising the alkali gypsum

(22) 20.12.2016 (43) 26.04.2018 (57) The present invention relates to a method for producing an alkali gypsum for admixture of ordinary cement or slag cement using a desulfurized slag fine powder...

Issue 9/2018 WO 2018/079868 A1

Low-shrinkage and low-carbon green cement composition comprising carbon-mineralized fly ash and early strength type expansion agent, and concrete having same applied thereto

(22) 26.10.2016 (43) 03.05.2018 (57) One embodiment of the present invention provides a green cement composition comprising Portland cement, carbon minerals, an early strength type expansion agent,...

Issue 7-8/2018 KR101849927 (B1)

Cement admixture

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