Influence the cause analysis of fujian ceramic tile caulking agent contract

Fujian ceramic tile seam filling agent with high strength material as aggregate, cement as binder, with high flow, micro expansion, made from materials such as anti segregation. It joined a certain amount of water in the construction site, use after stir well. Ceramic tile seam filling agent has good artesian, rapid hardening, early strength, high strength, no shrinkage, micro expansion; Nontoxic and harmless, not aging, on the water quality and the surrounding environment pollution-free, good tightness, rust etc. 1, admixture fujian ceramic tile seam filling agent admixture types much more special, function also each are not identical. Commonly used water reducing agent, accelerator, early strength agent, etc. Admixture materials has become a modern ceramic tile seam filling agent is an indispensable part of, in the construction of civil engineering play a new mixed with ceramic tile seam filling agent to improve workability, adjust the condensation of new mixed with ceramic tile seam filling agent hardening performance, improve the strength and durability of ceramic tile seam filling agent or other special performance. But admixtures lead to early shrinkage increases the reality of the ceramic tile seam filling agent must cause enough attention. 2, ceramic tile gap filling aggregate amount and quality of fujian agent shrinkage is the main component 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, 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 ceramic tile of the faster the drying speed of caulking agent, at the beginning of the ceramic tile seam filling agent condense sclerosis easily cause dry crack, so you have to take early water according to different situations, moisturizing and steam curing concrete measures. 4, water/cement ratio in cement dosage, 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, the shrinkage of cement dosage and varieties of sand and gravel aggregate value is very small, so the dry shrinkage of the ceramic tile seam filling agent mainly comes from the shrinkage of cement slurry, water slurry shrinkage value of up to 2000 x 10 or more. In water/cement ratio, cement dosage, the greater the fujian ceramic tile seam filling agent drying shrinkage value. In a high strength ceramic tile gap filling agent, when making up more to control the dosage of cement.