Prestressed concrete hollow slabs should be paid attention to in use

During the construction process, we all need materials such as formwork or plates, and pre-stressed concrete hollow plates can serve as templates. Join Xiaobian today to learn more about the production and use of prestressed concrete hollow slabs!

Prestressed concrete hollow slab production

1. When making prestressed concrete hollow slabs, uniform steel strands with high strength and low relaxation and corresponding anchorage should be configured strictly in accordance with the requirements of its construction process. Steel strands should be used in appropriate amounts. Excess strands can easily cause corrosion of prestressed concrete hollow slabs .

2. When cutting steel strands, the cutting site should be wound tightly, otherwise it is easy to fry the head. At the same time, after the casing of the steel strand is stretched, the casing is fixed and then sealed to prevent mud, water, air, etc. from seeping into the concrete, causing damage to the interior of the prestressed concrete hollow slab.

3. In the steel joint position should be added to the template edge to make it more stable and robust, pay attention to check prestressed concrete hollow slab board of low density. Otherwise, when the prestressed concrete hollow slab is used in the later stage, the leakage of water and water seepage will occur in the light of the buildings, and the dislocation of the protective layer of the reinforced concrete and the occurrence of longitudinal cracks in the concrete will occur. The construction quality is worrying.

4. According to the construction technology requirements of the prestressed concrete hollow slab , the steel strands are tensioned, and the strands are periodically checked for broken filaments, slipping filaments, etc. If there are, the filaments are promptly replaced to ensure their functionality.

What to watch out for in use

1. The remaining prestressed concrete hollow slabs in use should be stored by bundled lifting. At the same time, during storage, care should be taken that they cannot be stacked in layers. Up to three layers can be placed, and the layers are separated by layers of wood (usually a padding of 30 cm in thickness). Point to support stacking.

2. In the early stage of the implementation of the hollow plate assembly, the toughness and firmness of the composite steel formwork must be tested because pre-stressed concrete hollow slabs usually use composite steel. In order to guarantee the construction quality, the hollow slab must be carefully inspected to see if it meets the requirements of the construction process.

3. During the casting process of prestressed concrete hollow slabs, avoid touching and walking on their surface. For example, the trolley in the construction site can directly pass over the steel mold to avoid irreversible deformation. At the same time, in the correction phase of the airbag, attention should also be paid to the regular inspection of airbag safety, operability, and stability, so as to avoid deviations in the airbag and cause problems in the cast module.

Xiao Bian concludes: The above is Xiao Bian's share of pre-stressed concrete hollow board in the production and use of some of the matters of attention, I hope to have trouble in this area friends can help. Want to know or consult more decoration knowledge? Then come and follow this site!