Admixture for soil cement slurry composition and soil cement slurry composition for ground improvement

JP7878797B1Active Publication Date: 2026-06-23TAKEMOTO OIL & FAT CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TAKEMOTO OIL & FAT CO LTD
Filing Date
2026-03-25
Publication Date
2026-06-23

AI Technical Summary

Benefits of technology

【0017】 本発明のソイルセメントスラリー組成物用混和剤は、ソイルセメントスラリー組成物の流動性を向上させることができるという効果を奏するものである。

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Abstract

This invention provides an admixture for soil cement slurry compositions that improves the fluidity of the soil cement slurry composition. [Solution] An admixture for soil cement slurry composition, characterized by containing a polymer (P) having a structural unit (1) formed from a compound represented by general formula (1), and a structural unit (2) formed from a compound containing at least one selected from the group consisting of acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, and salts thereof, and having a mass-average molecular weight of 5,000 to 500,000.
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Claims

1. The polymer (P) contains a structural unit (1) formed from a compound represented by the following general formula (1), and a structural unit (2) formed from a compound containing at least one selected from the group consisting of acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, and salts thereof. The polymer (P) is characterized by having a mass-average molecular weight of 5,000 to 500,000, making it an admixture for soil cement slurry compositions. 【Chemistry 1】 (In the general formula (1) above, AO is an alkylene oxy group having 2 to 4 carbon atoms, R is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, m is an integer from 4 to 16, and n is an integer from 1 to 200.)

2. The admixture for soil cement slurry composition according to claim 1, wherein the mass ratio of the constituent unit (1) to the constituent unit (2) converted to sodium salt in the polymer (P) (constituent unit (1) / constituent unit (2) converted to sodium salt) is 95 / 5 to 50 / 50.

3. The admixture for soil cement slurry composition according to claim 1, wherein m in the general formula (1) is an integer from 6 to 10.

4. A soil cement slurry composition for ground improvement, characterized by containing soil, a hydraulic solidifying agent, water, and an admixture for soil cement slurry compositions according to any one of claims 1 to 3.