Secondary grouting material - cracking phenomenon Acrylate grouting material to solve this problem

Secondary grouting material equipment foundation grouting anchor bolt grouting material goods secondary grouting material of these advantages in the aspect of reducing secondary grouting material cracking doesn't seem to reflect, the secondary grouting material cracking phenomenon seems to grow, often hear or see the secondary grouting material cracking engineering examples. Secondary grouting cracking problem and commodities secondary grouting material has close relation with the preparation and construction process, the secondary grouting material goods preparation may result in the crack of the secondary grouting material, improper construction undeserved also may result in the crack of the secondary grouting material. Therefore, to prevent the secondary grouting material cracking need from secondary grouting material preparation to the strict control of the entire process of construction. However, the presence of the secondary grouting material goods will grouting material standard divided this process, there are two different units independently, which requires the joint efforts of both sides, to solve the secondary grouting material craze. However, in which some engineering, it is not satisfactory. Some construction units and even make the mistake of thinking that the right mix can promise not to crack, and do not take effective technical measures in the construction. In such an environment in a large area of the casting secondary grouting material didn't take any measures, surface without any covering. Casting cracks appeared shortly after. Construction units were considered secondary grouting material provided by the mixing station caused by the crack resistance is not good. In addition, the secondary grouting material early curing does not reach the designated position, open die too soon, is also a common phenomenon. New casting only after the second grouting material ripping caocao to sprinkle water once or twice, some even no water, also do not cover, even in the hot summer. Some construction units for even mixing plant ensure secondary grouting material cracks proposed technical requirements. Thus, some construction units on the performance of the secondary grouting material lack even the most basic common sense. Cannot be ruled out, of course, a reasonable mix proportion design to improve crack resistance of secondary grouting effect, if the secondary grouting material mix proportion is unreasonable, in construction, maintenance, again good also cannot ensure secondary grouting material not cracking. Goods, therefore, the secondary grouting material mixing station should optimize the secondary grouting material mixture ratio, take all kinds of technical measures to improve crack resistance of the secondary grouting. But only on the one hand efforts is not enough, must actively cooperate with construction unit. Secondary grouting material commercialization process is actually a process of specialization, division of the objective is to strengthen the secondary grouting material preparation process of quality management, but weakened the whole city project quality management. Control the construction speed of our country is in a period of rapid development, accelerate the construction speed is understandable, but it must be changchun basin type grouting material price abide by objective laws. For construction projects, each part of construction, each working procedure, usually need a certain construction period, if the construction period can't guarantee anything, may affect construction quality. Therefore, the construction speed and construction quality may occur some conflicts. File conflict, priority should be given to quality, must be on the premise of ensuring quality, improve the construction speed can not blindly pursue the construction speed and ignore the quality. But in some of the grouting material in the maintenance phase of actual construction, a pursuit of speed and ignore the quality. Large volume of secondary grouting material construction crack control is the most outstanding problem, considering from the problem, require that the secondary grouting material low heat, heat release rate is slow. Secondary grouting material of heat from the gelled material of cremation, the slower the heat release rate of mean gelled material hydration speed slower, delay time to dismantle. Not only in the large volume of secondary grouting material construction is the need to control speed, the other aspects of the construction also needs to control the construction speed. A large number of studies have shown that fast construction speed is easy to cause the craze of secondary grouting material. It is also a secondary grouting material cracking phenomenon is more serious in recent years one of the important reasons. For secondary grouting material engineering construction speed should have a correct understanding, according to the objective law of the development of the secondary grouting material performance control, must not blindly pursue high speed.