The application of CGM high-strength grouting material under the environment of high temperature - Grouting material foundation reinforcement

CGM high-strength grouting CGM high-strength grouting material manufacturer CGM high-strength grouting material price steel mills, chemical plants and so on many of the large equipment using the environment temperature above 300 ℃, the cement base CGM high-strength secondary grouting, the grouting material composition equipment foundation reinforcement reinforcement structure and reconstruction and the place such as industrial furnaces can choose to use CGM high-strength grouting material. But the study found that ordinary CGM high-strength grouting material in high temperature CGMCGM high strength grouting material 1, strength is increased with the temperature, the intensity of different degrees of damage, there will be blowout phenomenon.     Ordinary CGM high-strength grouting material, at 200 ℃, no shrinkage CGM high-strength grouting material coagulation time environment, and under the environment of the compressive strength values. After more than 400 ℃, CGM high-strength compressive strength of grouting material fell sharply. Once more than 800 ℃, CSH gel occur dehydration, loss of cementation, the compressive strength of a large number of losses. The study found that, after the temperature over 400 ℃, the strength of the CGM high-strength grouting material declined dramatically. Accounting for 6% of the cement weight - at this time 12% of the calcium hydroxide in the process of heating dehydration after into a lot of free lime, when cooled, the displacement of calcium oxide and contact with moisture in the air and dispelling gradually become calcium hydroxide, volume expansion, produce a lot of stress, resulting in destruction of CGM high-strength grouting material structure. In addition, the water in the heating engineering debris increase contraction, and aggregate is inflation, the difference is caused CGM high-strength grouting material, makes the strength decreased.     Under the environment of high temperature using CGM high-strength grouting material, Shanghai bao smelting engineering technology co. , LTD. , a newly developed high temperature resistant casting CGM high-strength grouting material, has high temperature resistant performance. Large equipment based secondary grouting to use high temperature resistant casting CGM high-strength grouting material under the 500 ℃ can guarantee 80% of the original strength. In order to ensure the safe use, I company at 1000 ℃ temperature test, the compressive strength value is 65% of the original strength, thus can be at ease within 500 ℃ high temperature environment.     CGM series high temperature resistant castable is in aluminate cement materials and refractory performance good special aggregate adding admixtures and plus the seam an agent made from the factory special cement mortar. This product has a good construction performance and durability, can use for a long time not under 500 ℃ high temperature environment appear cracking phenomenon. Using CGM refractory castable is an effective method for economic solutions to building fireproof rank, are already widely used steel converter orbit, kiln track grouting project. Involved in chemical industry, metallurgy, building materials industry.