Who knows the laying method of geogrid?
Roller compaction of C. rubber tyred roller.D. 50? 0,.3mm of the fixed iron sheet, the requirements of flat angle, the edge of the appropriate chamfer treatment, 2 inch steel nails (high quality cement nails)When the e nail fixation method is used for laying fiberglass geogrid, one end is fixed on the lower layer of the structure of the asphalt layer which has been sprayed with a fixed iron sheet and a nail. When the grating is tensioned longitudinally, the glass fiber is in a straight and tight state.
Anchoring methodNot since the glass fiber geogrid reinforced asphalt concrete pavement adhesive and prevent pavement and pavement reflection crack, the anchoring construction, but should be paved with glass fiber geogrid, then sprinkle hot asphalt had sticky oil, the construction personnel must wear gloves, construction methods are as follows:A. adhesive layer oil using AH-70 or AH-90 heavy oil hot asphalt, adhesive layer oil specifications and quality should be consistent with the "highway asphalt pavement construction technical specifications" JTJ032-94, using special vehicle spraying. Sticky oil per square meter about 0.4kg-0.6kg.B. laying glass fiber geogrid, should be flat and smooth, tight and transverse lap length should be 50-100mm, longitudinal lap length should be 150-200mm, and according to the spreading direction, the pressure in the front end is under.
When the f. nail is fixed, the grid overlapping distance is as follows: the longitudinal joint overlap distance is not less than 15cm, and the transverse overlapping distance is not less than 5cm. The longitudinal lap shall be placed on the top of the rear plate in accordance with the direction of asphalt paving.G. fixed nails can not be nailed on the glass, can not be directly hit the glass with a hammer. If the nail is found to be broken or loose after fixing, it will need to be fixed.H. to prevent the construction vehicle tires will be fiberglass grille and stick together. And the asphalt concrete paver wheel slip phenomenon, should be in the surface of the oil layer of stone, stone chip amount of 3m3/1000m2-5m3/1000m2.
