Qinhuangdao Prefabricated Concrete Houses
Qinhuangdao has extensive practice and development in prefabricated concrete houses, covering multiple aspects such as policy guarantees, self-built housing applications, shantytown renovations, and overall industrial development.
Policy Rectification to Ensure Quality: The Qinhuangdao Housing and Urban-Rural Development Bureau has launched a special rectification campaign targeting the quality of ready-mixed concrete and the use of sea sand. The campaign covers all ongoing housing projects and related enterprises in the city that use ready-mixed concrete, addressing both production quality (e.g., enterprise qualifications, raw material management) and usage quality (e.g., performance of construction units, quality of concrete structures). The focus is on cracking down on the illegal use of sea sand. Supervision and inspections are carried out by housing and urban-rural development departments at both the municipal and county levels. Any identified quality risks are ordered to be rectified immediately or within a specified timeframe, providing institutional guarantees for the quality of prefabricated concrete houses.
Self-Built Housing Applications: Due to the coastal climate's humidity and windiness, high-quality prefabricated concrete exterior wall panels have become the preferred choice for self-built housing. These panels are integrally formed using high-strength concrete and steel reinforcement frames, offering resistance to wind pressure, moisture, and salt spray corrosion, making them suitable for coastal building facades. Their standardized production ensures precise dimensions, high on-site assembly efficiency, shorter construction periods, and reduced quality risks. The surface textures and colors can be customized, and the use of low-alkali cement and high-performance additives extends their service life. Internally embedded connectors and sealing systems ensure tight joints, good thermal performance, and modular designs that support future maintenance. Excellent manufacturers in the Hebei region have over a decade of experience, with an annual production capacity of 150,000 cubic meters, and their product performance exceeds industry standards.
Applications in Shantytown Renovation Projects: The shantytown renovation project in the Liumafang plot of the Qinhuangdao Economic Development Zone adopts an assembled monolithic concrete shear wall structure, with a total construction area of 227,600 square meters. The first to third floors are cast-in-place structures, while the rest use prefabricated exterior walls, interior walls, composite slabs, stairs, and other components. The project has a seismic design intensity of 7 degrees and a service life of 50 years, demonstrating the large-scale application of prefabricated concrete houses in major projects.
Overall Industrial Development: The Qinhuangdao Economic and Technological Development Zone is promoting the green and industrialized transformation of the prefabricated building industry, with the proportion of prefabricated buildings in new constructions exceeding 60% for three consecutive years. Enterprises in the zone have achieved industrialized component production and assembly-based construction through technological innovation. For example, Hexin Jiye has developed new products, while Guangda Zhupin focuses on prefabricated interior finishes and has obtained over 90 patents. At the same time, strict implementation of green building standards and clear requirements for the proportion of prefabricated components from the planning stage are driving high-quality industrial development.
