Q:Large area ground concrete cushion seam Why is the separation of joints generally concrete

Large area of ??concrete after concrete construction, the concrete volume will be slightly inflated, the ground for a long time deposition, will be sinking, all large area of ??concrete construction, the general set of separation joints.

Q:Do you need a cushion on the ground floor?

Chalet recommended to do sloping roof, the lowest point suggested 2.4. Talk about the ground, the roof, the wall area divided by the length of your board length and width of the area can be calculated on the amount of it!

Q:Why calculate the amount of time to count a lot of cushion ah

? In the municipal engineering, the bedding layer is a structural layer between the grassroots and the soil foundation. When the soil temperature is bad, the water temperature of the soil is improved and the water stability and frost resistance of the pavement structure are improved. Diffusible load to reduce soil deformation.

Q:What is the relationship between the cushion and the ring beam?

There is no direct relationship between the cushion and the ring beam.

Q:Maintenance time of the cushion on the roof of the building

According to the "concrete structure construction quality acceptance criteria" provides: Concrete should be poured within 12h after the completion of the concrete to be covered, and moisturizing conservation;

Q:Basement floor mattress dry to what degree can do coil waterproof?

Second, when the design of the highest groundwater level above the bottom of the basement floor, you must do waterproofing. As the waterproof waterproof effect is good, so the application of more. Internal waterproofing is generally used for repair works.

Q:Why do the basics of the cushion waterproofing

Base cushion waterproofing is not contact with the soil (Ying water) to prevent water into the cushion, but in the cushion and the base of the bottom of the contact, in fact, is the basis of the bottom of the waterproof.

Q:Is foam concrete suitable for use as a cushion?

Inappropriate. Bubble concrete is a new type of energy-saving and environmentally friendly building materials, which are widely used in wall materials, but there are still some defects, such as low strength, cracking, water absorption, as the cushion of its strength is not enough standard.

Q:Roof waterproof mattress should play the number of centimeters appropriate

Roof waterproofing can not use a single waterproof material, must be rigid and flexible combination of construction, flexible waterproof stretch is good, a little bit of settlement or deformation will not damage the waterproof layer. Rigid waterproof (ie mortar waterproofing agent) waterproof at the same time, can play a protective role, waterproof layer is not easy to be destroyed.

Q:Can the cushion on the prefabricated board floor be dug?

Prefabricated board floor layer of cement layer is not called the cushion, should be called leveling layer, this layer can be removed, but be careful not to damage the prefabricated plate.