What is the board?

In the construction industry, the grade plate is a relatively flat concrete structure built on the upper soil at the ground level. This simple board design differs from the reinforced plate technique used for increased concrete floors and does not require support from underground countries or endowment walls. The degree acts as a basis for a home or building and provides a stable base for walls and other building elements.

before the construction of the class board, suppliers often dig the soil in the area. A geotechnical or building engineer can be hired to test the stability and compaction of the soil. Using large compact machines, the supplier equals the soil to remove the air pockets and allow it to effectively support the concrete slab. The installer pour sand or gravel into a dug area to function as a partial base for concrete, and then add a steam barrier to prevent the underground moisture from penetrating into the plate. More than the rest of the surface. This stronger part acts as a mini-footer and helps more evenly distrustIbuvovat the weight of the outer walls through the soil. A class spab may or may not require reinforcement or wire network reinforcement depending on the load and local building codes. The plate is poured as one unit and is left to dry slowly for several days or weeks to minimize cracking and maximize strength and durability.

In areas where temperatures are immersed under the winter under the winter, the edges of the plates must be surrounded by foam insulation to prevent damage and thawing. The insulation leaves are usually located horizontally below the reinforced edges of the plate and vertically around the entire perimeter. Some applications also require insulation under the center of the plate or built into concrete as it is poured.

The average grade board contains the parallel line "control joints", which are filled with a caul or sealant to mask their appearance. As the concrete dries, it also decreases, which often leads to to determineA form of cracking that can affect the strength and appearance of the board. The control joints are a form of controlled cracking to help maintain the integrity of the class board.

In order to ensure that the grade board offers the necessary strength and stability, the installation staff with caution must choose concrete mixtures. Water and concrete must be added in exact proportions according to the manufacturer's specifications. Too much or too little water can result in tearing, cracking or other signs of damage.