GROUTING SYSTEM AND GROUT

摘要

PROBLEM TO BE SOLVED: To enable the fluidity of grout to be changed in accordance with grouting conditions, in the use of the grout which hardly changes its strength property after solidification even if the fluidity is changed by adjusting the quantity of a thickening agent. SOLUTION: The fluidity of the grout for use can be changed by changing the quantity of the thickening agent blended into cement milk in which the ratio between cement and water is fixed. A grouting system manufactures the grout with air bubbles while sequentially mixing respective materials through continuous piping, and injects the grout into a void of ground and a structure as-is. In the system, the feedback control of the quantity of air for being mixed into the grout through the continuous piping is performed, and the result of the feedback control is reflected on the flow rate of the grout after of mixing. COPYRIGHT: (C)2008,JPO&INPIT