Gravity mortar - Gravity flow mortar

Item description: gravity mortar. Nickname: the wind/noise barrier with gravity filling slurry, mortar gravity flow. Meaning: it means according to the installation of the passenger dedicated line bridge deck accessory works and developed special filling slurry. Strength grade parameters: 28 days is greater than or equal to 50 million mpa. Material: 525 r cement, admixtures of accessories. Specifications: 50 kg per bag. Detection basis: the beijing-shanghai high-speed working 【 2011 】 10 the wind/sound barriers using gravity filling slurry interim technical requirements for the brand: ZLSJ. Unit: t/package/bag. Price: 1800 RMB per ton, 45 RMB per bag. Selling point: can be customized according to the requirements specification, the nearest delivery, manufacturers provide free customization service. Main use: wind barrier base plate installation pack; Base plate installation noise barrier packing; The pole base plate installation pack. Technical parameters of standard: 1 | | test project standard test results 5 min fluidity, mm | 360 | 73702 | 30 min or fluidity, mm | 3003203 | 2 h or higher compressive strength, 2025 MPa or greater. 64 | 1 d compressive strength, | 48 40 MPa or greater. 35 | 28 d compressive strength of 65 MPa | | 50 or more. 6 | 1 d vertical expansion rate, % | 0 or higher. 020. 027 | shrinkage rate, 28 days % less than 0. 10. Frost resistance, 28 days 058 | | spalling amount is less than 1000 g/m2 | 300. Warranty period: 6 months functional features is introduced: this product by high quality cement, packing, made from imported polymer, high-performance additives, when used to join the powder weight of 0. 15 water, mechanical agitator can be used after fully mixing. The product is adaptability, can the construction in high temperature or low temperature conditions. Especially under the condition of low temperature, good performance of antifreeze, in - 10 ℃ to - 15 ℃ condition for the construction, ensure good early strength and post strength. Construction usage: using special measuring equipment according to 0. 15≤0. 0 1 water material mixed with water, not by adding water to improve liquidity, mixing water shall comply with the performance of & quot; Railway concrete structure durability design specification & quot; Requirements. 1. Basic level processing cleaning equipment basic surface must not have crushed stone, laitance, dust, oil and release agent, etc. 24 hours before the gravity of slurry grouting, equipment foundation surface should be completely wet. 1 hour before gravity mortar grouting temperatures should be. 2. Mortar grouting method to determine the gravity of the equipment based on the actual situation, choose the corresponding gravity mortar grouting method. Because it has good flow property, generally can be directly from the template pouring slurry, slurry can directly from the template pouring mouth, completely depend on the weight of paste filling and filling the entire space; If the filling area is large, the structure is extremely complex, or space is small, can be used. Gravity mortar grouting & quot; Use & quot; High gravity funnel mortar grouting & quot; Or & quot; Mortar grouting pressure gravity & quot; To ensure that the slurry can be fully filled every corner. 3. Grouting template shuttering according to determine the gravity of slurry grouting mortar grouting method and gravity construction drawings templates, template locating elevation should be at least 50 mm higher than equipment based on the surface, the template must be firmly fastened, to prevent loosening and leakage. 4. Are recommended in gravity mortar mixed according to the product certificate of the proportion of water and materials, used in the mixed water, drinking water temperature should be 5 ℃ and 40 ℃, can use mechanical or manual mixing. Mechanical mixing, stirring time is usually 1 x 2 min. Using manual mixing, add 2 3 or less water for 2 min, the remaining water use should continue to stir, the standard concentration of 12% 14% or less. High-definition pictures: