Grouting null of water glass type

摘要

PURPOSE: To build an intended improved body at all times by putting the injected material under management properly while the density of a material liquid for water glass or a water glass aqueous solution and also the density of a hardening agent are well grasped. ;CONSTITUTION: The density of a material liquid G₀ for water glass or the density of water glass aqueous solution G₁ prepared by diluting the water glass material liquid with water is sensed, and also the density of a hardening agent 32 or 33 is sensed. These are fed to a convergence part by injection pump 34 through separate lines, and the rates of flow and the pressures of the water glass aqueous solution and hardening agent are sensed in that position of injection pipe before reaching the convergence part, and thereupon the management of the materials is carried out.;COPYRIGHT: (C)1996,JPO