CGM early strength non-shrink grout First, the technical characteristics of an early strength and high strength: to run the production equipment installed after three days. 2, gravity state, micro-expansion: to ensure close contact between the equipment and infrastructure. 3, no rust, anti-oil seepage. 4. Durability: 2 million times fatigue test, 50 freeze-thaw cycle experiments no significant changes in intensity. 5, good weather resistance -40 ℃ ~ 600 ℃ long-term safe use. Second, use 1, 2 secondary grouting equipment installation, installation of steel column base 3, a variety of machines installed electrical equipment without horns flow grout 4, anchor bolts, column-based grout, grout batholith 5 frame joints dock, bridge joints reinforcement 6, grouting post-tensioned precast, prestressed bridge pouring 7, the transformation of concrete beams, slabs, columns, walls, foundation reinforcement and repair of three test indicators (performance standards: GB / T50448-2008) category CGM products CGM380 CGM340 CGM290 CGM270 maximum aggregate size (mm) ≤4.75> 4.75 and ≤16 fluidity (mm) initial value ≥385 ≥350 ≥295 ≥275 * ≥655 ** 30min reserved. value ≥340 ≥320 ≥270 ≥245 * ≥560 ** vertical expansion (%) expansion of the value difference between 3h ≥0.1 24h and 3h of the 0.1 compressive strength (Mpa) 1d ≥22 3d ≥45 28d ≥65 reinforced whether the corrosion of non-bleeding rate (%) 0 Note: * indicates a slump value, ** said the slump flow value. Fourth, packaging, storage 1, the product of plastic bags, packaging specifications for the 50 kg / bag. 2, the product unopened, should be in a dry, cool, ventilated packaging at the store. Under normal storage and transport conditions, the shelf life of 12 months.