TD-A2 Passenger Dedicated situ grouting material bearing rubber bearings installed a special grout, use: for mounting Second, the technical characteristics of all types of passenger dedicated cast bridge rubber bearing: early strength, high strength, high fluidity ( gravity), no shrinkage, anti-oil seepage 1, grout early strength, high strength: one day strength up to 60MPa or more, and equipment installed to run the day after the production. 2, grouting material gravity state: the scene just add water and stir, and directly poured into the device basis, without vibrating equipment foundations can fill all voids. 3, grouting material micro-expansion: to ensure close contact between the equipment and infrastructure. 4. No corrosion grouting material: reinforced, steel and other non-corrosion hazard. 5, grout anti-oil seepage: 30 days immersed in the oil intensity than before immersion oil increased by 10%. 6, grouting material durability: 200 million times fatigue test, 50 freeze-thaw cycle experiments no significant changes in intensity. 7, grout weather resistance -40 ℃ ~ 600 ℃ long-term safe use. Third, technical indicators: (Standard: Passenger Line cast bridge rubber bearing basin Interim technical conditions) IV Extension of bearing grout construction Introduction 1, bearing installation site surface chiseling stone bearing pad, remove to stay in bolt hole in the debris, and then with water saturated bearing pad stone surface wet, but not out of water during construction. 2, the mounting bracket in place, with a small steel wedge wedging seat around, adjust the seat to the design elevation, between the bottom surface of the support bearing pad stone should be left 20-30mm gaps. 3, carefully check the bearing central location and elevation, install grout template, and the top surface of the pad stone should take credible measures to prevent leakage of slurry in gravity filling. Grouting methods using gravity infusion TD-A2 type bearing grouting material. Filling should be required before a preliminary measure paste volume, the number of actual perfusion should not calculate the value of the slurry produced a large error, preventing intermediate lack pulp. 4, the ratio of water = 0.135-0.14 (weight ratio) preparation. Water was added to the mixing bucket should be first, and then gradually added weighed grout, side by side feeding electric mixer gun stirred until the powder all finished, then continue stirring for 2-3 minutes, the slurry evenly. The mixed slurry should be completed within 10 minutes infusion. After 5 to be filling material reaches a predetermined intensity, removal of the template and steel wedges, check whether tainted plasma, plasma leakage of clearance at the rear and steel wedges were drawn up pulp, tighten the bolt, then install the beam holder floor and seat sealing panels. Dosage: 2100Kg / m3 Storage: can be stored for three months in dry conditions. Technical indicators are above in the case of normal humidity measured.