The new material - building technology co. , LTD On repairing

On his back on his repair material quick-setting repair beautiful seam an agent on his professional repair construction material - Dedicated to a roof, bridge, the technical advantages of l high compressive strength, rapid curing under normal temperature, after repair, after three hours can be open to traffic. L strong cohesive force, spalling resistance, excellent durability, thermal expansion coefficient and the concrete approach. L high thixotropy, mixing and easy daub, not flowing, without dripping. L have good high permeability, crack resistance, aging resistance and acid-proof alkaline can. L construction procedure is simple, convenient, and concrete durability, shorten the construction period, to ensure efficiency. Second, the performance indicators GB50728 - 2011 technical specification for the engineering structure reinforcement material security appraisal, project technical indicators vertical mobility ( mm) ≤2. The compressive strength (0 MPa） 3 h≥20。 The compressive strength (0 MPa） 28 d≥50岁。 0 flexural strength ( MPa） 3 h≥4。 0 flexural strength ( MPa） 28 d≥10。 0 bond strength ( MPa） 28 d≥1。 5 shrinkage rate ( %） 28 d≤0。 10 3 l high strength concrete surface defects, application range, repaired potholes; Carbon fiber reinforced plastics or sticky paste surface leveling construction steel reinforcement in concrete. L is particularly suited to bridge, tunnel dynamic load cases of roof construction. Four, construction methods, basic level processing: basic level surface should be smooth, rough, clean, no oil, no float ash, dusting, empty drum, there should be no cracks. Construction before application of high-pressure spray on them and keep wet state, but can not have water. Interface bonding can besmear brushs interface in advance when dealing with the seam an agent. Materials: reference water for 13. 0%. Stir well to directly open the packaging. According to the matched good pulp should be 0. Out of 5 hours. On his back: workers, quick-setting repair beauty seam an agent a construction area of shoulds not be too big, should be a partition to stagger the construction, each area should not be greater than 10 ㎡, the interval of staggered construction should not be less than 24 hours. Layered construction, seam location should be staggered to each other. On his back, quick-setting repair beauty seam an agent paving should immediately after hydraulic pressure and a smooth, should not be repeatedly put pressure. In case of bubbles should be punctured, the surface should be compacted. Facade or on the surface of the top layer thickness is greater than & lt; 10mm> Should be layered construction. The appropriate thickness of each layer of plaster for 5 ~ 10 mm, wait until a touch layer when may lower the construction be carried out. On his back, keeping guard: quick-setting repair beauty seam an agent, after construction surface touch after drying should be spray curing careless or override, keep wet sacks, etc. The bottom of the curing temperature is not in & lt; 5℃> 。 Construction after 24 hours, covering plastic and wet curing 7 days, conditional can be timing sprinkling water on the surface. Fifth, packaging and storage, packaging, powder & lt; 50公斤> / bag, in & lt; 5℃> Above ventilated dry storage and prevent direct sunlight; Shelf life for six months. Beyond the guarantee period should be rechecked after qualified before use.