External factors - grouting material shrinkage The grouting material brand

Non-shrink grout grouting material brand grouting material 1, plus the seam an agent & # 8195;   Grouting material and beautiful seam an agent types much more special, function also each are not identical. Of common beauty water reducing agent, quick-setting seam an agent, early strength seam an agent, etc. Plus the seam an agent has become a modern grouting material is an indispensable part of material, in the civil engineering construction plays an improved new mixing grouting material workability, adjust the condensation of the new mixing grouting material hardening performance, improve the strength of grouting material and durability or other special performance. But with beautiful seam an agent which resulted in increased early shrinkage grouting material reality must cause enough attention.     2, aggregate consumption and quality & # 8195;   Is a major component of grouting material shrinkage of cement stone. Increase aggregate consumption can be reduced contraction. Under the same conditions, the use of relatively high elastic modulus of aggregate, can also reduce the shrinkage.     3, environmental conditions, & # 8195;   Temperature, humidity, wind speed of contraction will have a significant impact. The higher the temperature, the smaller the environment humidity and wind speed, the greater the grouting material drying speed is faster, yunnan kunming grouting material suppliers at the beginning of the condensate in urumqi, grouting material and grouting sclerosis is associated with dry crack, so you have to take early water according to different situations, moisturizing and steam curing concrete measures.     4, water/cement ratio & # 8195;   When the dosage of cement must be, water/cement ratio, the greater the means that the more excess water, corresponding, the greater the shrinkage value of evaporation. We will strictly control the water cement ratio, try to reduce the water cement ratio.     5, cement dosage and varieties of & # 8195;   Sand and gravel aggregate shrinkage value is small, so the dry shrinkage of the grouting material mainly comes from the shrinkage of cement slurry, cement slurry of epoxy grouting material supply shrinkage value can reach more than 2000 x 10. In water/cement ratio, cement dosage, the greater the grouting material drying shrinkage value. So when high strength grouting material preparation, more want to control the dosage of cement.