C - Chemistry – Metallurgy – 06 – D
Patent
C - Chemistry, Metallurgy
06
D
31/24
C06D 5/06 (2006.01)
Patent
CA 1332669
ABSTRACT OF THE DISCLOSURE A composition suited for addition to ground excavation stabilizing liquid is disclosed which is able to effectively prevent the deterioration of the stabilizing liquid due to seawater or the mixing therein of cement, or to prevent the putrefaction of the liquid by bacteria. A ground excavation method for using the composition is also di closed. The composition which is suited for addition to excavation stabilizing liquid comprises: (1) a mono-valency salt (A) of unsaturated carboxylic acid (co)polymer of polymerization degree 5,000 or less; and (2) a compound (B) selected from a group consisting of mono-valency aluminate, group II or III metal oxide, and salt of a higher order compound. The excavation stabilizing liquid composition comprises: said composition suited for addition to excavation stabilizing liquid as described above, together with, inorganic clay (C), and as necessary, a compound (D) selected from a group consisting of water soluble cellulose derivatives, water soluble starch derivatives, polysaccharides and their derivatives. The ground excavation method is a method for excavating the ground by excavator with staying or circulating the excavation stabilizing liquid composition in the excavated area.
572537
Iizuka Yoshio
Ohtsuka Yoshiyuki
Tanaka Satoshi
Yamamoto Manabu
G. Ronald Bell & Associates
Sanyo Chemical Industries Ltd.
Shimizu Construction Co. Ltd.
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