CGM high-strength non-shrinkage grouting material setting time problem

Setting time of the grouting grouting material setting time problem many clients will be asked about how much is the setting time of the grouting, long solidification, how long can use problems, according to these doubts, building materials co. , LTD. Technology production to analyze this kind of problem to solve. Grouting material of the condensation process is divided into two stages: initial setting and final setting from grouting material and water, and grouting slurry body loss of liquidity for the initial setting stage, this paragraph of time is the initial setting time; Grouting material adding water to lose their plasticity slurry grouting material in the final set stage, this time for the final setting time. There are two kinds of water in the slurry, it is with hydration reaction of cement minerals, is a slurry condensation sclerosis, produce strength; 2 it is to make the slurry has certain plasticity and fluidity, facilitate test molding and construction operation. The water of the cement hydration needed water moisture will leave gaps in the hardening of the body, reduce the strength and durability of grouting material. So be sure to strictly control the water consumption, according to the standard of construction specifications to add water consumption, water content is greater than the required value, the grouting slurry body floating on the surface of excess water, excess water on the setting time have the effect of the delay. Setting time is not as short as possible, undertake choosing according to specific engineering conditions. When carries on the repair project, the initial setting is not earlier than 25 min, final set no later than 60 min. Equipment foundation by grouting and anchor bolt is fixed, if the initial setting time is shorter, stir in ground and construction operation level is more far, in the course of carriage, slurry has lost its liquidity, appeared the phenomenon of initial setting, the situation is not allowed, is also impossible to construction.