Dandong Concrete House Prefabrication
The concrete house prefabrication industry in Dandong is relatively developed, with multiple manufacturers, a wide variety of products, advanced manufacturing processes, and high application value.
Manufacturers and Products
There are several prefabricated PC component manufacturers in Zhenxing District, Dandong, with business models covering production, wholesale, and distribution. Their main products are diverse, including prefabricated slab beams, bay window composite slabs, PC assembled components, prefabricated concrete stairs, shear wall prefabricated slabs, prefabricated box girders, PC horizontal components, and prefabricated concrete stairs. Their service areas are extensive, covering multiple regions such as Kuandian Manchu Autonomous County, Zhenxing District, Fengcheng City, and Yuanbao District. Baida Cement Products Factory in Zhen'an District focuses on the production of integrated cement houses with reinforced concrete pouring, located in Tongxing Town, Zhen'an District, Dandong. The factory has excellent professional technology and advanced mold equipment. The houses it produces have good overall integrity, fast construction speed, and low cost. They are sturdy, durable, environmentally friendly, energy-efficient, efficient, earthquake-resistant, moisture-resistant, and wind-resistant, suitable for various places such as rural houses, industrial plants, and warehouses.
Product Prices
There are differences in the prices of different types of concrete prefabricated products. Assembled formwork-free composite floor slabs (cement fiber composite boards) cost 7.00 yuan per piece; Forex beautiful rock cement boards (school fair-faced concrete prefabricated boards) cost 16.00 yuan per piece; Composite slabs with reinforced bars for composite floors (composite floor bearing slabs for cement prefabricated boards) cost 56.00 yuan per piece; Loft floor slabs (Harbin loft cement pressure boards, steel structure mezzanine floor slabs) cost 26.00 yuan per piece; Pear blossom white cement pressure boards (steel structure lightweight floor slabs, floor slabs, and floor paving boards) cost 18.00 yuan per square meter.
Manufacturing Process and Application Value
The production of cement products starts with the precise proportioning of raw materials. Based on the particle packing theory, the raw materials include Portland cement, coarse and fine aggregates, and specific additives. The structural strength is improved by optimizing the grading curve, and the additives regulate the hydration reaction rate. The forming process involves a change in physical state. Vibration compaction technology promotes the rearrangement of particles to expel air, vacuum dewatering reduces the water-cement ratio, and steam curing accelerates the hydration reaction. Humidity control during the curing period is crucial, as a lack of water can halt the reaction and leave defect channels. In modern construction, prestressed concrete components are suitable for large-span bridge box girder structures; prefabricated floor slabs with ribbed structures enhance load-bearing capacity and provide space for pipeline laying; the incorporation of supplementary cementitious materials improves durability; air-entraining agents prevent surface spalling in freeze-thaw areas; the production of prefabricated components enables centralized recycling of off-cuts, precise pouring processes reduce material waste, some products use recycled aggregates, and standardized component design improves the recycling rate; integrated applications such as self-insulating blocks and sound-absorbing pavement tiles are also available.
