What is the Reason for the Deformation of the Building Formwork

Building wooden formwork, which is made of high-quality birch, poplar and other boards, and the surface is treated with waterproof phenolic resin impregnated paper. It is used for shear walls, vertical


wall panels and dams, tunnels and overpasses, arch bridges, beams etc..


What may cause to deformed of construction wooden formwork?

1. The assembly of small steel molds that not set up according to the regulations, which resulting in poor overall performance of the building.

2. The foundation where the formwork is placed is unstable, and poor waterproof measures cause the foundation to sink.

3. The concrete is not poured in time after wooden formwork accepted, and the surface is deformed due to long-term sun and rain.

4. If the support distance between formwork is too large which may beyond pressed ability.

5. The speed of pouring concrete for walls and columns is too fast, the pouring height is too high, and the vibration is excessive.

评论

发表评论

此博客中的热门博文

Things to Consider When Buying Film Faced Plywood

图片
Film faced plywood   is an exterior plywood used in building and construction projects.  It has a special film coating on its surface made from phenol or melamine on either or both sides which gives the plywood a higher resistance to moisture, abrasion, chemical degradation and fungal attack compared to ordinary plywood. But before you plan to buy the film faced plywood, there are certain factors that you should consider. We have listed them here for you. SO lets know about the little plywood things.   Durability: They are durable in nature. They resist fungus and work well in all seasons from summers to winters. They also work well against chemicals and last longer. It is processed using the best quality wood and latest technology keeping in mind the latest market trends. The offered plywood is highly appreciated for its unique bonding strength, seamless finishing, and durability. Easy to clean: Since the film on this plywood makes the surface smooth, it does not let anything stick to
阅读全文

Physical and Mechanical Properties of WPC Board

图片
Wood plastic composite is a kind of high-tech and environment-friendly composite material made of wood fiber and thermoplastics such as PE, PP, PVC, or PLA. After heating and extruding, it has properties and characteristics of both wood and plastic.    Wood-plastic flooring is made of  wpc decking  materials, with the same processing characteristics as wood. It can be sawed, drilled and nailed with ordinary tools and can be used like ordinary wood. At the same time, it has the texture of wood and the water resistance and corrosion resistance of plastic, making it a kind of excellent performance and very durable outdoor waterproof and anti-corrosion building material. Physical properties: good strength, high hardness, anti-slip, wear resistance, no cracking, no moth, low water absorption, aging resistance, corrosion resistance, anti-static and ultraviolet, insulation, heat insulation, flame retardant, can resist 75℃ high temperature and -40℃ low temperature. Environmental performance: e
阅读全文

How to Distinguish the Quality of Particle Board

图片
Particle board   has been widely used in home decoration. The furniture made by particle board manufacturers has a sense of hierarchy and clear texture. However, there are so many kinds of particle board products on the market. How to distinguish the quality of particle board when purchasing? Following us to know about it. 1. Appearance. Checking the product brand logo, the color of high-quality particle board is uniform. There is no obvious color difference and no points, block spots. Checking in the bright place, to see whether there are dry flowers, wet flowers, air bubbles, bulging and other problems, in a darker place, tilt the plate to check whether the surface is smooth or not and whether there are obvious seams and deformation problems. 2. Thickness and layer. A good substrate has a uniform thickness, good layering, no voids and overlaps. Secondly, depending on the thickness and material, measure the thickness of the board, the thickness of particle board is 15-18MM. 3. Product
阅读全文