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Consumers who have used wood plastic composite gazebo may find that the installed wood plastic composite gazebo will crack. The size, number, and depth of the cracks are different. The occurrence of cracks will greatly affect the appearance and quality of the wood plastic composite gazebo. Let us analyze some possible causes of cracks below:
There are generally many reasons for the cracking of the wood plastic composite pavilion, mostly due to the two processes before and after the hardening of the wood plastic composite. Before hardening, the plastic wood composite mortar is still in a plastic state, and it settles due to the density of different components and the difference in materials, and free water inside is precipitated, causing the sediment to shrink and crack. However, the cement wood-like layer is made on the surface of the dry base material, because the moisture is quickly absorbed by the base material, the plastic wood material shrinks in a large area and produces wide and deep cracks on the surface. In order to avoid the settlement and cracking of the plastic wood composite guardrail, the plastic wood composite should be protected from strong wind and sun exposure in the absence of water before the molding is completed; and the plastic wood composite should be maintained in time after completion to prevent the moisture on the cement imitation wood surface from evaporating and drying . If it is in high temperature weather, the hydration of cement accelerates, and the internal heat of hydration is not easy to disperse, leading to temperature cracks. At the same time, due to the rapid evaporation of water, the rapid drying of cement plastic wood mortar shrinks, and shrinkage cracks are easy to occur.
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