Dingxi Concrete House Prefabrication

Dingxi concrete house prefabrication mainly includes the customization of prefabricated concrete composite slabs, prefabricated component manufacturers, and the availability of ready-made prefabricated composite floor slabs.

Customization of Prefabricated Concrete Composite Slabs

• Design Phase: It is necessary to combine engineering requirements with the geographical characteristics of Dingxi to clarify building structural requirements, such as parameters like span, load, and thickness. Given the frequent wind loads and significant temperature variations in the Dingxi area, anti-crack steel mesh reinforcement should be reserved during design.
• Production Phase: Raw materials should use concrete with a strength grade of C30 or above, with stone particle sizes controlled between 5 - 20mm and a sand ratio maintained at 35% - 40%. During production, the mold accuracy error should not exceed 2mm; the vibration compaction degree should reach over 95%; the curing environment temperature should be kept between 15 - 25℃, with humidity ≥ 90%, and the curing period should be no less than 7 days.
• Installation Phase: Before lifting, inspect the appearance of the components to ensure there are no cracks, chipped corners, or other defects. Use dedicated lifting equipment during lifting, with a lifting speed controlled at 0.5m/s to avoid collisions. After installation, focus on treating the joints by cleaning debris from the bottom of the slab and wetting it with water; binding connecting steel bars with a diameter ≥ 12mm and a length ≥ 30d; using micro-expanding agents when pouring joint concrete, and keeping it moist during the curing period.

Prefabricated Component Manufacturers in Dingxi Area

The concrete prefabrication plant of Dingxi Guangsha Construction and Installation Engineering Co., Ltd., located at 109 Zhonghua Road, Chengguan Town, Dingxi County, was established on June 29, 1998. It mainly provides the processing and manufacturing of prestressed hollow floor slabs and small prefabricated components.

Ready-Made Prefabricated Composite Floor Slabs

• Common Specifications: Mostly steel truss concrete composite slabs, with a thickness of 150mm - 200mm (designed according to span), a span of 2.4m - 6m (within the range of conventional building spans), and a width of 1.2m - 1.8m (suitable for common housing unit sizes). Some manufacturers can provide customized specifications.
• Advantages of Ready-Made Purchase and Applicable Scenarios: The advantages lie in shortening the construction period, controlling costs, and ensuring visible quality; applicable to small and medium-sized residential projects, emergency projects, renovation and remodeling projects, and other scenarios with tight construction deadlines.
• Key Selection Indicators: It is preferable for the concrete strength grade to be C30 or above, and a 28-day compressive strength report can be requested; the steel bar configuration should meet design requirements; the appearance quality should be flat on the surface, with no cracks, chipped corners, or other defects; the factory certificate should include information such as the manufacturer, production date, and specification parameters.
• Logistics and Installation: Local manufacturers usually deliver within 24 hours within the province and negotiate transportation cycles based on distance for out-of-province deliveries; provide installation technical guidance, and some manufacturers can assist in connecting with construction teams; support batch deliveries to meet the phased construction needs of projects, and proper protection should be provided during transportation.