High-strength non-shrink grout material strength concrete embodiment of the important factors have? - Proportion of high-strength non-shrinkage grouting material

High-strength non-shrink grout high-strength non-shrink grout material manufacturer high-strength non-shrink grout material price in general, has the structure characteristic of impermeable if grain appearance, is not conducive to form excellent bonding. In addition, the bond is affected by other physical and chemical properties of aggregate, and these properties and aggregate mineral composition, chemical composition and particle appearance of static conditions. The bond between aggregate and cement slurry is high-strength non-shrink grout material is an important factor in strength, especially when folding strength of opposites, but the essence of the bond is still not completely known. Part of bond formation is the aggregate of surface roughness of the cement and aggregate Mosaic. The gravel particles, for example, its appearance is rough, because mechanical chimeric can form good bonding; General soft, porous and mineralogy of heterogeneous particles can also achieve good bonding. For example, in a certain siliceous limestone, dolomite and aggregate may exist in the chemical bond, the polishing particle appearance may occur some capillary force. But little is known of these phenomenon, is still by experience to predict bond between aggregate and cement slurry around. In any case, as long as the aggregate looks clean and no sticky clay particle ability get higher cohesive force. Antifreeze high-strength non-shrink grout material use sp; It is difficult to determine the bonding quality aggregate, and has not yet accepted test methods. In general, when bonding outstanding, crush the high-strength non-shrink grout material specimen should contain some thoroughly damaged aggregate particles, in addition, there are more particles is pulled damage. But if the aggregate particles break too much, perhaps because of poor aggregate. Shijiazhuang bearing high-strength non-shrink grout material price arranged parallel to their building materials said flake calcium hydroxide in the interface of C - S - H later, at the same time, the interface area is rich in some fine cement particles and water cement ratio is higher than cement matrix. The findings explain the silica fume in providing the prominent role of high-strength non-shrink grout material strength. Because the bond strength depends on the strength of cement and aggregate properties, appearance and bond strength along with the age of high-strength non-shrink grout material added, seem to bond strength and the strength of cement slurry control factors. However, in the high intensity filling and special high-strength non-shrink grout material manufacturer factory price in the slurry, bond strength may be lower than the tensile strength of cement paste, and make the damage occurred earlier. In fact, aggregate and its surrounding cement interface is also very important, therefore the aggregate has discontinuity and boundary effect will be introduced.