First, the product features 1, early strength, high strength, equipment installed to run the production day 2, high flow, no bleeding, anti-corrosion 3, complex expansion of double effect, precise positioning 4, the correct grouting construction technology can achieve 90% of the effective bearing surface (EBA) Second, product performance indicators CGM high-strength non-shrink grout key performance indicators (Table 1) Model CGM-380 CGM-340 CGM-300 CGM-270 fluidity (mm) Initial values ??≥380 ≥340 ≥300 ≥270 * ≥650 ** 30min retention value ≥340 ≥310 ≥260 ≥240 * ≥550 ** vertical expansion rate differential expansion value (%) 3h 0.1 ~ 3.5 24h and 3h of 0.02 to 0.5 Products Characteristics Standard ultra-early-strength antifreeze corrosion resistant steel fiber type ultra strong compressive strength (MPa) 2h ≥15.0 1d ≥20.0 ≥30.0 ??≥10.0 ≥20.0 ≥20.0 ≥30.0 ??≥30.0 ??3d ≥40.0 ≥40.0 ≥15.0 ≥40.0 ≥ 40.0 ≥50.0 ≥50.0 28d ≥60.0 ≥60.0 ≥60.0 ≥60.0 ≥60.0 ≥80.0 ≥80.0 steel corrosion effect Have no bleeding rate (%) 0 l * indicates a slump value, ** indicates slump flow value ; l can select the characteristic according to project needs CGM high-strength non-shrink grout products; l antifreeze compressive strength is measured at -10 ℃; l corrosion is suitable for coastal ports, Yantian, salted erosion device hit areas base, foot steel column foundation secondary grouting. Meet JC / T1011-2006 "concrete corrosion resistant sulfate preservatives", GB / T18736-2002 "high performance concrete with mineral admixtures" and other standards. l The above data under standard laboratory controlled conditions measured; l unit dosage: about 2200kg ~ 2400kg / m3; a: CGM high-strength non for construction in winter shrink grout shall comply with the provisions of Table I and Table II. CGM antifreeze for construction in winter when the high-strength non-shrink grout performance indicators (Table 2) a predetermined temperature (℃) compressive strength ratio (%) R-7 R-7 + 28 R-7 + 56 -5 ≥20 ≥ 80 ≥90 -10 ≥12 Note: 1, R-7 indicates a negative temperature curing 7 days compressive strength of the specimen and the standard curing ratio 28 days compressive strength of the specimen; 2, R-7 + 28, R-7 + 56 denote negative temperature curing 7 days 28 days and negative turn standard curing temperature curing 7 days turn standard curing 56 days compressive strength of the specimen and the standard curing ratio 28 days compressive strength of the specimen. 3, the construction of predetermined temperature lower than the lowest temperature 5 ℃. Fourth, the application of technical specifications 1, construction preparation 1) Construction site quality management should have the appropriate technical standards, a sound quality management system, construction quality control and quality inspection system. Due prior to grouting construction design or construction technology programs, and approved by the review. 2) construction should be prepared before filling a blender, filling equipment, templates and maintenance items. External 3) template support in addition to complying with existing national standards, "the relevant provisions of Concrete Structures for Construction Quality Acceptance of GB50204 shall comply with the following requirements: 4) the secondary grout around the base level of the template and equipment should be controlled at a distance about 100mm; the top of the template should not be lower than the elevation of the base on the device surface 50mm; 5) the transformation of reinforced concrete structure, template support should allow sufficient filling hole and vent, filling aperture hole is not less than 50mm, spaced not more than 1000mm, filling holes and vent holes should be higher than the highest point of 50mm. 2, mixing 1) mixing cement-based grouting materials, water should be added in accordance with the product requirements of water. 2) 2) cement-based grouting material should adopt mechanical mixing. When mixing water mixed with 2/3 advised to join contract 3 minutes then add the remaining water mix until uniform. If the manufacturer of the product mix have specific requirements, which should require mixing. 3) mixing sites should be close to the filling site. 3, anchor bolts filling 1) construction process anchoring bolt shall comply with Appendix B requirements. 2) anchor bolt into the hole, the standard deviation of the bolt holes no larger than 5mm, vertical deviation must not be greater than 5 °. 2) bolt hole walls should be rough, the hole should be clean, not a floating dust, oil and other impurities, soaked in water before filling 8 ~ 12h, remove stagnant water hole. Preheat measures should be taken when the ambient temperature is below 5 ℃, the temperature was maintained at above 10 ℃. 3) before grouting anchor bolts should remove oil and rust surface. 44) will be a good mix of cement-based grouting material poured into the bolt holes, can adjust the position of the bolts as needed. Filling process is strictly prohibited vibrators, may be appropriate interpolation pound, after the grout may not adjusting bolt again. 5) on the surface of the hole grout layer should be less than the basis of the concrete surface about 50mm. 4, secondary grouting 1) Secondary grouting project should be based on the actual situation, the appropriate choice of grouting. The process should be consistent with the requirements of Appendix C. 2) prior to grouting, floor and equipment should be in contact with the surface of the concrete foundation grouting material clean, not a loose gravel, floating pulp, floating dust, oil, wax and the like. Grouting before 24h, the foundation concrete surface should be thoroughly wetted before filling 1h, remove stagnant water. 3) the secondary grout, grout should be one side, until the other side to overflow, grouting and shall not from opposite sides. After filling start, it must be continuous, and filling time as short as possible. 4) long distance track basis or grout, depending on the actual situation can be segmented construction project. 5) Do not vibrated during the grouting process, filling the bottom of the booster can be used along the direction of flow of the slurry, if necessary, to promote the grouting material is prohibited from filling layer, the upper push. 5, the concrete surface modification and reinforcement of concrete structures grouting 1) cement-based grouting materials in contact should be fully cutting hair. 2) concrete repair structural defects, should be removed to expose the loose concrete and steel, the cut edges of repair area vertical shape, depth of not less than 20mm. 2) before filling should clear all the rubble, dust or other debris, and grass-roots moist concrete surface. 3) The uniform mixing of grout material poured into the template and tap the appropriate template. 4) When the grout layer thickness is greater than 150mm, should take measures to prevent temperature cracks. 6, post-tensioned concrete structure with duct grout 1) post-tensioned concrete structure with duct grouting method to comply with Table 7.6.1: Table 7.6.1 grouting techniques choose Environment category one, two three four, five grouting process can be grouting method using pressure or vacuum grouting grouting method should be adopted or vacuum pressure method grouting grouting grouting method should be used to vacuum grouting grouting method 2) before the official grout should choose a representative channel grouting test. 3) The grouting process should comply with the requirements of the relevant standards of the State; grouting process can not be mixed with other additives in cement-based grouting material, admixtures. 7, winter construction 1) the average daily temperature is below 5 ℃ in winter construction and shall meet the following requirements: It should take 2) before grouting measures preheat the base surface, so that the temperature is maintained at above 10 ℃, and remove stagnant water; 3 ) should not exceed 65 ℃ warm water mixing cement-based grouting material, the slurry into the mold at temperatures above 10 ℃; 4) before the cold, the compressive strength of cement-based grouting material shall not be less than 5MPa. 8, hot climate construction 1) filling the site temperature is above 35 ℃, should be hot climates construction and meet the following requirements: 1) 24h before grouting take measures to prevent the filling parts in direct sunlight or other heat radiation; 3) appropriate cooling measures, infrastructure and temperature of the device in contact with the concrete floor cement-based grouting material should not exceed 35 ℃; 4) the slurry into the mold temperature should not exceed 30 ℃; moisture conservation measures should be taken after 5) grout. 9, room temperature curing 1) filling, the daily average temperature should not fall below 5 ℃, the exposed part of the grout should be promptly after the curing compound or covered by plastic film, sealed wet straw bags to keep moist. When using plastic film covering the exposed surfaces of cement-based grouting material should be covered tightly, holding a plastic film has a condensate. When the grout surface inconvenience watering can spray curing agent. 2) should be maintained in a wet state grouting materials, curing time of not less than seven days. 3) When using rapidly solidified rapid hardening cement-based grout material, conservation measures should be performed according to the method of product requirements. 10, winter construction maintenance 1) winter construction, works on the strength of growth in the absence of specific requirements, after completion of the exposed part of grout should be covered with plastic film and stamped insulation materials. Initial curing temperature should not fall below 5 ℃. When negative temperature curing condition can not be watered. After 2) Chaimo poor cement-based grouting material surface temperature and ambient temperature greater than 20 ℃, should be covered with insulation material conservation. 3) If the ambient temperature is below the minimum application temperature requirements of cement-based grouting material or when the intensity of the need to accelerate growth, can be artificial heat curing methods; conservation measures should be consistent with existing national standards "building construction procedures winter period" of the relevant provisions of JGJ104.