Changji Concrete House Prefabrication

Changji has a certain industrial foundation in concrete house prefabrication, covering aspects such as prefabricated component production, structural types, and policy regulations.

I. Prefabricated Component Manufacturers and Product Types Changfa Prefabrication Plant in Changji City, established in 1998, is one of the early local enterprises engaged in the production of concrete prefabricated components. Its main products include prestressed hollow slabs and concrete prefabricated components, providing basic component support for house construction. In addition, there are PC component manufacturers in Xinjiang whose service areas cover the surrounding regions of Changji. Their main products include prefabricated T-beams, PC stairs, prefabricated hollow slab beams, truss-type composite slabs, PC cement components, etc. These components are produced in factories, which can improve construction efficiency, ensure quality stability, and are suitable for prefabricated building systems, promoting the development of concrete house prefabrication in the Changji region towards standardization and modularization.

II. Characteristics of Concrete House Structural Types In the Changji region, there are cement houses with pure reinforced concrete structures, whose core advantages are reflected in four aspects:

1. Structural Performance: The synergy between steel bars and concrete significantly enhances the overall strength and load-bearing capacity of the house, meeting seismic fortification requirements;
2. Fire Resistance: Concrete materials have a high fire resistance limit, effectively delaying the spread of fire and ensuring building safety;
3. Durability: Reinforced concrete structures have strong resistance to weathering and corrosion, extending the service life of the house;
4. Economy: Factory-prefabricated components reduce on-site construction procedures, lower labor and material losses, and have relatively low overall costs. Such structures are suitable for multi-story residential buildings, public buildings, and other scenarios, meeting the climatic and geological conditions in the Changji region.

III. Policy Regulations and Construction Requirements Since January 1, 2024, Changji Prefecture has comprehensively banned on-site mixing of mortar in housing and municipal engineering projects, mandating the use of canned dry-mixed ready-mixed mortar or finished bagged dry-mixed ready-mixed mortar. This policy has two impacts on concrete house prefabrication:

1. Quality Improvement: Ready-mixed mortar is produced by professional factories with precise proportions and stable performance, reducing quality fluctuations caused by on-site mixing and enhancing the connection strength and durability of components;
2. Environmental Optimization: Banning on-site mixing effectively reduces dust emissions and noise pollution, promoting the prefabrication industry's transition to green construction and aligning with sustainable development requirements. The implementation of the policy further standardizes the construction process of concrete house prefabrication in the Changji region, providing institutional guarantees for the high-quality development of the industry.