Grouting material how to use

grouting material how to use epoxy grouting material how to use various types grouting material to use the same, the correct method of use, will produce the best effect. 1, grouting construction should be prepared before mixing machine, grouting equipment, template and maintenance items. 2, secondary grouting, the template and the horizontal distance around the appropriate control equipment base at around 100 mm; Mould board at the top level should be no less than 50 mm equipment base surface. 3, strengthening concrete structure transformation, the template support should be adequate and vent hole, grouting pore size is not less than 50 mm, spacing of less than 1000 mm. 4, mixing cement grouting material, water consumption and water shall, in accordance with requirements of the product. Appropriate USES mechanical mixing. Mixing appropriate to add two thirds of the water mixing about 3 min, then add the remaining water mixing until evenly, mixing locations should be close to the grouting. 5, anchor bolt anchoring grouting: (1) anchor bolt hole, bolt hole wall roughness, the hole should be clean, must not have float ash, oil and other impurities, soaked in water for 8 ~ 12 h before grouting, clear hole inner product. 2 before grouting the grease and rust on the surface of the anchor bolt should be removed. (3) of good mixing cement grouting material into the bolt hole, can according to need to adjust the position of the bolt. Grouting is strictly prohibited in the process of vibration, can be appropriately dao, after the grouting shall not adjust the bolt again. 6 secondary grouting, equipment foundation: (1) before grouting, should contact with grouting material equipment cleaning the surface of base plate and concrete foundation dry net, can not have loose gravel, floating pulp, floating ash, oil, wax, etc. 24 h before grouting, concrete surface should be fully wetting, 1 h before grouting, clear water. 2 secondary grouting, grouting should from the side, until it from the other side of the overflow, grouting will be made from the relative sides at the same time. At the start of the grouting, should be carried out continuously, and shorten the grouting time as much as possible. (3) track foundation or grouting distance is longer, depending on the actual engineering situation can be segmented construction, length should not be more than 5 meters each. Such as equipment base plate with complex structure, appropriate USES pressure grouting. (4) it is strictly prohibited in the process of grouting vibrating, if necessary, can the grouting booster, booster along slurry flow direction of bottom grouting material, are strictly prohibited from grouting layer, the upper drive. 5] equipment foundation after grouting, should be in after initial setting of grouting material along the bottom edge to outsiders cut 45 ° Angle, such as unable to handle trimming, should be after the initial setting pressure grouting layer surface light with a spatula. 7, reconstruction and reinforcement grouting concrete structure: (1) the concrete cement grouting material contact surface should be fully cut hair. Concrete structure defect repair, should eliminate the degeneration and concrete to steel bar, the repair area edge cut into vertical shape. (3) before grouting should remove all debris, dust and other sundry, and wet concrete surface at the local level. (4) the grouting material with uniform mixing into templates and proper tap on a template. 5] grouting layer thickness is greater than 150 mm, should take relevant measures to prevent to produce temperature crack. 8, construction maintenance measures: (1) the grouting, the average daily uniform temperature should not be lower than 5 ℃, after the grouting spray exposed part should be timely maintenance beauty seam an agent or covering plastic film, affixed with wet straw bag stays wet. Using plastic mulch, cement grouting material of bare surface should be covered tightly, keep plastic film in the condensate. When water grouting material list of inconvenience, but spraying curing the seam an agent. 2 grouting materials shall be maintained in the wet state, curing time shall not be less than 7 d. (3) when using fast setting type rapid hardening cement grouting material, curing measures should be executed according to the method of product requirements. (4) winter construction, the project has no special requirements on strength growth, after the grouting exposed part should be timely covering plastic film and heat preservation materials. The initial curing temperature should not be lower than 5 ℃. Water in negative temperature curing condition. 5] after dismantle cement grouting material is greater than the difference between the surface temperature and environmental temperature 20 ℃, the heat preservation material covered maintenance should be adopted. [6], such as environmental temperature is lower than the minimum of cement-based grouting materials construction temperature or need to speed up the growth intensity, can use artificial heating curing curing measures should comply with the current national standard 'architectural engineering winter construction regulations' the relevant provisions of the JGJ104. Grouting material to remind you, procurement of high-strength non-shrink grout material, best before first use and the related technical personnel to communicate.