Title:
SOIL IMPROVEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2021/161868
Kind Code:
A1
Abstract:
Provided is a soil improvement method whereby it becomes possible to improve the compressive strength of soil cement even when a soil comprising an acidic soil containing an organic substance such as humic acid, fulvic acid, humin and bitumen is used. A soil improvement method comprising mixing a soil having an organic substance fraction of 30% or more as determined by an ignition loss method with a hydraulic powder, water and a component (A) mentioned below, wherein the component (A) is mixed in an amount of 0.5 to 10% by mass inclusive relative to the amount of the hydraulic powder. The component (A): at least one compound which serves as a supply source capable of releasing an aluminum ion and/or a calcium ion and a chloride ion in water (excluding a hydraulic powder).
Inventors:
SHIMADA TOSHIYUKI (JP)
Application Number:
PCT/JP2021/003903
Publication Date:
August 19, 2021
Filing Date:
February 03, 2021
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
C09K17/06; C09K17/08; C09K17/10; E02D3/12
Foreign References:
| JPH10245555A | 1998-09-14 | |||
| JPS58138778A | 1983-08-17 | |||
| JPS5364911A | 1978-06-09 | |||
| JPS61243885A | 1986-10-30 |
Attorney, Agent or Firm:
FURUYA Satoshi (JP)
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