Why do CGM high-strength non-shrinkage grouting material up powder

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material on powder reason why grouting material of powder? Powder is possible problems in the application, it may be caused by improper construction, in order to avoid this situation, new star building materials co. , LTD specially summarizes some method to avoid the powder. First, CGM high-strength non-shrinkage grouting material itself has good water retention, to prevent serious water secretion lead to excessive grouting material ratio of surface water from the well of the choice of materials, attention should be paid to control the water cement ratio shoulds not be too big, plus the seam an agent don't mix, retarded time to suitable sand and stone aggregates to meet the national quality requirements, especially pay attention to below 0315 mm particles content in the sand; Second, the cement setting time not too long, specific surface area shoulds not be too small, grading shoulds not be too concentrated; Then, don't vibrating in the construction process, and it is forbidden to excess water. Finally, finished, must pay attention to the timely maintenance, both to prevent it from surface grouting before hardening was washed off the surface water cement ratio of the grouting material is too large, and to prevent the moisture in CGM high-strength non-shrinkage grouting material in surface set up before the strength loss, especially the grouting material, mixed with fly ash or slag due to its low early strength, hydration product surface is not enough to seal the surface of wool stoma, if do not pay attention to the early full wet curing, grouting material surface moisture lost faster is more, the surface of cement can not get adequate hydration, also can cause surface grouting material strength is low, loose structure. Above is about some of the ways to avoid grouting material on powder, hope to help everyone construction! For details, please consulting engineer - costumers Li Gong - The phone - 15838304411.