[TST] gravel joints bridge expansion joints, angle joints description: [] TST gravel joints bridge expansion joints advantages:? Direct tile bridge joints purchase bulk FM80 bridge expansion joints, and front and rear deck Pavement or form a continuous body, flat deck seamless, smooth ride, comfortable, no noise, vibration, easy maintenance, cleaning. ? Structure is simple, convenient and fast construction, open to traffic after the pavement to cool. ? Waterproof performance, and acid corrosion. ? Low cost, durable, maintenance and replacement of less. [TST] gravel joints bridge expansion joints drawback? Applies only to a small amount of stretching of the bridge. ? TST requires special equipment to melt stone materials and heating equipment for maintenance of transport inconvenience. [Skateboarding] bridge expansion joints, also known as cover cross stitch seam skateboard ride steel expansion joints, such joints are characterized by the number of pieces of sheet steel, telescopic staggered into two parts, the upper part of the thick steel plate can slide and the other phase o wide slit between the two beams is provided to accommodate the same stretch. [Bridge] skateboard seam joints advantages:? Cause steel plates, so itself more durable. [Bridge] skateboard seam joints Disadvantages:? Structure is more complex, more time-consuming construction, repair is not easy. ? Can easily be packed debris, affecting the function. ? Raphe while driving is easy to beat. Bridge expansion joints installed [] [] the preparation of bridge expansion joints rapid hardening concrete. Selection of fast hard cement formulated sulphoaluminate 525 40 fast hard concrete. Cement not less than 400 kg / m3, the maximum size of 20 mm gravel bridge expansion joints, sand for the sand. Blending ratio of: cement: sand: gravel = 1:1.55:3.3, using water-cement ratio 0.50. ] [Bridge expansion joints treated joints Face. In addition to cutting the time of the original bridge deck expansion joints, exposing the underside (transverse bulkhead plate and the top surface) uneven. For the in-situ concrete slab smooth contact with the bottom, to prevent disorders caused when the temperature expansion of concrete damage, the concrete should be chiseled cleaned, rinse the bottom surface, and then the hard mortar 12.5 # fast disappearing, to form a smooth surface so that its free expansion. [] Pouring concrete bridge expansion joints. Construction, according to the design of concrete mix is ??selected. When pouring concrete, the chiseled parts cleaned, covered with a layer of plastic sheeting, linoleum floor, sides 1.5cm thick and high 8 ~ 10cm wooden joints do reserve. First covered with a layer of about 3 cm thick concrete. After the vibration, then put the production of good steel mesh, followed by filling concrete vibrators were smooth and nap. Surface smooth concrete slab above the original bridge deck after 1 ~ 2 mm. It should be noted that: pouring concrete faster, completed within 30 min of mixing, pouring, vibration, smooth and galling of all the processes; vibrated want dense, with a plate vibrator vibrators round 3-4 times, at the edge full use of the artificial vibration; conservation should be timely, pouring molding after 40 min Modular bridge expansion joint device, it is necessary water conservation works FM80 bridge expansion joints, and cover the wet sack. Expansion joint filler. After pouring the concrete to be 4min later, expansion joints can put aside the wooden slats removed after completion of health, filled with sawdust mixed with asphalt in the joints, tamping can. Bridge expansion joints, FM80 bridge expansion joints works, selling high quality (certified merchants) provided by Hengshui Rubber Co. Guangrun. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) is specialized in the "seismic steel ball bearings, spherical steel unidirectional bidirectional slide bearing, fixed-elastic damping ball bearing hinge" of the enterprise, the company is adhering to the "integrity management , hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Wang.