Shrinkage-free Grouting Material

Grouting Material Product IntroductionPolar Bear Brand grouting material is a kind of powdery material that is premixed by factory with high-intensity cementation component, super-plasticized component, expansion component, optimized proportioning/aggregating components as well as micro modified component in proper proportion. When being used, only adding water can make the material be mixed to be high intensity non-shrinkage grouting material of evenness, proper thickness, to constructions satisfaction, and with self-leveling performance. As per its performance, the material can be divided into 2 big categories, high-early-strength material and ultra-and-early strength material, and 5 models, which can meet the requirements of different project. Technical Index Product High-early-strength- I High-early-strength- II Ultra-early-strength- I Ultra-early -strength- II Ultra-early -strength- Grain Size 4.75mm Screen /% ≤2.0 ≤4.0 Coagulation Time Initial Set/min ≥120 ≥45 ≥30 Water Secretion Rate % ≤1.0 Fluidity Initial Fluidity ≥260 Retention Value of 20min Fluidity -- -- -- -- ≥230 Retention Value of 30min Fluidity ≥230 -- Compressive Strength/MPa 2h -- -- -- -- ≥20.0 4h -- -- ≥30 ≥20.0 -- 1d ≥35.0 ≥22.0 ≥50.0 ≥40.0 ≥55.0 3d ≥55.0 ≥40.0 ≥55.0 ≥50.0 ≥60.0 28d ≥80.0 ≥70.0 ≥70.0 ≥70.0 ≥95.0 Vertical Expansion Rate /% 1d ≥0.020 Bonding Strength of Reinforcement (round steel)/ MPa 28d ≥4.0 Corrosion on Reinforcement No Water-material Ratio 0.15 0.16 0.12 0.15 0.12 Adaptive Environmental Temperature Above 0 Above -10 Above -5 Performance Features1. Dual expansion function in plastic state and post-hardening stage: after grouting the material into the designated places, the material will not have sedimentation and shrinkage but to have slight expansion till it hardens. As a result of its expansion function after hardening, the material will compensate the shrinkage and ensure the firm connection between steel structure base board and concrete base and effective conveyance of load to base. 2. Ultra-early-strength: As the grouting material is based on ultra-early-strength cement and contains accelerating and early strength component, the strength grows fast even under low and subzero degree temperature. 3. High flow performance: the material is very easy to mix and stir at working site and it can flow to the designated place and automatically level up without any outside force or auxiliary measures when being poured, and the effective filling is ensured. 4. Convenience for construction: As pre-packed material it is very convenient to use, just mix it with water at working site is okay. Also the material can be conveyed with pump. 5. Application in low and subzero degree temperature: the ultra-early-strength grouting material still has big growth in strength in low and subzero degree temperature. 6. Durability: highly final strength, good anti-seepage performance and corrosion resistant performance. The bond stress between material and reinforcement is high to ensure the installation precision. 7. The material does not contain chloride, without corrosion on equipment and reinforcement. Construction Method 1.Base Disposal 2.Mixing 3.Pouring Product Selection Choice of Product Models under Different Environment Temperature ProductProduct DescriptionGeneral ScopeHigh-early-strength-High Strength typeapplicable to construction in the environment temperature of above 5High-early-strength -General Use TypeHigh-early-strength -High Fluidity TypeUltra-early-strength-High Strength Typeapplicable to construction in the environment temperature of above -5High-early-strength -General Use TypeHigh-early-strength -High Fluidity TypeUltra-early-strength-DHigh Strength Typeapplicable to construction in winter with the temperature ranging from -20 to -5*Ultra-early-strength -DGeneral Use TypeUltra-early-strength - DHigh Fluidity Type Notes: When the environment temperature is below -20, please consult Tangshan Polar Bear Company..