Construction: CGM high-strength non-shrinkage grouting material of concrete engineering common three big problems

CGM high-strength non-shrinkage grouting material CGM high-strength non-shrinkage grouting material manufacturer CGM high-strength non-shrinkage grouting material price a, using heat cement concrete when the concrete problems of one of the fundamental components of grouting material, the performance of grouting material physical and mechanical properties and durability of concrete are important effect will occur. But engineering construction, since the supply of cement grouting material ratio of cement and construction period, the influence of cement factory without enough for cooling after factory and into the engineering application, in this case, simple present two very unlucky. On the one hand, perhaps because of the storage period not, lead to the cement stability is unqualified. Perhaps after cement quality inspection methods for inspection, when checking out the cement stability unqualified changchun anchor bolt grouting material, have been cement shall not be used for engineering construction. On the other hand, is a hot cement cement temperature is too high. Use of hot cement concrete grouting material first characterized by abnormal condensation sclerosis, more quickly is the cement hydration process, accelerate the hydration exothermic process, concrete grouting material though can be hardening, but homework mixture sex loss speed, easy to present false condensation phenomenon, and concrete strength of grouting material to carry out the abnormal, easy to present early surface cracking phenomenon. To prevent the occurrence of the above phenomenon, can through the inspection of cement factory certificate, to prevent the ground now factory, ensure Chen of cement must have enough time. In addition, when the temperature of the site construction found the cement is higher, should be appropriate extension in the field of cement storage time, the temperature fell to below 60 ℃, can better control in 30 - Between 40 ℃. Second, the dosage of mineral admixtures problems with the development of the concrete grouting material technology, the high efficiency water reducing the seam an agent and mineral admixture fundamental components of high strength high performance concrete grouting material. Although both at home and abroad about the performance of the high performance concrete grouting material no consistent definition of mineral admixtures to replace the quantity of cement and no consistent rules, for reinforced concrete grouting material structure of the high strength high performance concrete grouting materials, the addition of mineral admixtures for concrete grouting material mixture operation improvement and progress, the strength of the late concrete grouting material for would be beneficial. Three, concrete grouting material base set data problem and alkali content manipulation JianJiLiao reaction is the durability of concrete grouting material important indicator, because of its slow, caused the damage of concrete grouting material structure always hard to predict, in the event of damage it's hard to make up for, therefore JianJiLiao reaction of concrete grouting material 'cancer'. In spite of this, JianJiLiao better still is the ability to control and prevention. Building materials, given the damage JianJiLiao reaction of pole, argues that important concrete grouting material engineering especially long-term touch with water or in a moist environment of concrete grouting material engineering, its aggregate should examine of alkali activity.