2results about How to "Good anti-cracking effect" patented technology

This invention discloses a roller-compacted concrete (RCC) for hydraulic engineering and its preparation method, belonging to the field of concrete technology. The RCC for hydraulic engineering of this invention incorporates a basalt fiber-modified micro-expansion component. The preparation method of the basalt fiber-modified micro-expansion component involves cutting basalt fibers into 6-12mm fibers, dry-mixing them uniformly with steel slag powder and magnesium oxide expanding agent, and then spraying emulsified asphalt for surface coating and granulation. This invention's RCC for hydraulic engineering avoids cracking by innovatively adding the basalt fiber-modified micro-expansion component. Simultaneously, this RCC meets the actual needs of hydraulic engineering, exhibiting high compressive strength, good crack resistance, high durability, and high reliability.

The invention discloses a base material strength attenuation resistant protective film material, a preparation process and a use process. The base material strength attenuation resistant protective film material is prepared from the following components in percentage by mass: 60 to 80 percent of dimethyl silicone rubber, 10 to 30 percent of Y-glycidyl ether oxypropyl trimethoxy silane, 1 to 5 percent of neodecanoic acid, 1 to 5 percent of abietic acid and 1 to 5 percent of triethylene diamine. By adopting the formula materials and cooperating with the preparation process and the use process, the whole production process is simple, the dependence on complex spraying equipment is not needed, the evaporation-resistant coating process is adopted in one step, the production procedure is only evaporation-resistant coating, compared with the traditional spraying, baking and cleaning process, the production period is greatly shortened, the yield is as high as 98%, and the production cost is reduced. And the production cost is obviously reduced.