The bridge preloading ton bag is preloaded after the bridge support and bottom mold are installed, so that the support and formwork system eliminates loading deformation. Tons of bags are of course convenient and quick, and the bag can also be pre-compressed with sand. Sand can be used in masonry, plastering and other projects.
The shape of the bridge pre-compressed ton bag is a rectangular parallelepiped, the general size is 90*90*110, and various specifications are used to measure the load-bearing capacity of the bridge. The load-bearing capacity is very important and cannot be ignored. The aging of large bags in bridge engineering is mainly caused by ultraviolet rays in sunlight. The ultraviolet rays cause the degradation of polypropylene, which causes the large bags to show signs of reduced tension, chalking, and fading. Although the value of a ton bag is not high, a general ton bag is only a few ten yuan, but the material carried is a thousand times or even ten thousand times the value, so the safe use of the ton bag is a very important question. In order to transport materials safely, the general aging life of large bags is required to reach half a year or even more than one year. Of course, the specifics depend on the needs of customers. On the basis of fully understanding the mechanism of aging of big bags, the elements of aging and the specifications of aging inspection, we can fully satisfy the needs of customers for anti-aging of big bags.
