Fuzhou, the main purpose of the grouting agent and application scope

Fuzhou, the main purpose of the grouting grout: after used for jang lyang prestressed pipe grouting material filling, anti-corrosion, guarantee to prevent the prestressed steel prestressed beam with effective stress transfer between concrete structure, make the pore slurry full dense, slurry to keep a certain PH range, complete package of prestressed steel, slurry hardening has higher strength and elastic modulus and expansion without shrinkage and stick relay. Suitable for jang lyang prestressed pipe after filling grouting anchor grouting, anchor system, continuous wall head seepage grouting, side curtain grouting; Equipment foundation grouting, plate by plasma and beam-column joints, engineering repair and bolt anchoring, no vibrating self-compacting, micro expansion, oil permeability, resistance to erosion corrosion resistance, impermeability frost resistance; Used for high strength steel pore grouting prestressed concrete members, the bridge reinforcement, can run after 24 h, and strong and hardened concrete binding and repair without obvious traces of slurry setting time controllable is moderate. Fuzhou grouting agent application range suitable for roads, railways, Bridges, nuclear power plants and other large engineering of bonded post-tensioned prestressed concrete hole grouting. Fourth, construction requirements 1. Agitator rotational speed should be not less than 1000 rmin, mixing blade shape should match the speed of its blades linear velocity should not be less than 10 ms, maximum linear velocity should be limited within the 20 ms, and should be able to meet the requirements of within the prescribed time, stir to mix well. 2. Used for temporary storage of grout material storage tank should also be with functions of mixing, and should set the filter on the network size is not more than 3 mm. 3. Grouting machine should be used in piston grouting pump operates continuously, the pressure gauge the smallest degree of value should not be greater than zero. 1 mpa, the biggest range should be the actual working pressure within its range 25% ~ 75%. Shall not use air pressure type grouting hole grouting pump. 4. Vacuum aided grouting process used in the vacuum pump should be able to reach zero. Negative pressure of 10 mpa. 5. Mixing process is as follows: water material ratio of 0. 26 - 0. 28, first add 70% of the total water in the container, add the appropriate proportion of concrete and grouting agent, low-speed mixing high-speed mixing 5 min after 1 min, then add 12% of the total quantity of water stirring 3 min, transferred to the low speed slowly add the remaining water, stirring test and grouting after 1 min.

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