Lianjian Technology

The predecessor of Changzhou Building Science Research Institute Co., Ltd. was the Changzhou Building Science Research Institute, founded in 1959. It is currently the largest comprehensive building science research and technology development institution in Changzhou.\nChangzhou Building Science Research Institute Co., Ltd. has subordinate institutions including Changzhou Construction Engineering Quality Inspection and Testing Center, and wholly-owned subsidiaries including Jiangsu Niga Technology Co., Ltd., Jiangsu Dingda Building Materials Co., Ltd., Changzhou Dingda Building New Technology Co., Ltd., Changzhou Dingda Real Estate Agency Co., Ltd., and Jiangsu Construction Engineering Group Co., Ltd. Jianxin Technology Branch.\nChangzhou Construction Engineering Quality Inspection and Testing Center is a testing institution in Changzhou with the most testing items, the most advanced equipment, the strongest technical force, and the first to pass national laboratory accreditation. Its testing items include environmental testing, pile foundation testing, energy-saving and thermal insulation testing, municipal testing, structural testing, and more, with over 700 parameters in more than ten categories. It possesses advanced testing equipment such as beta energy spectrometers, relaxation testing machines, and steel bar detectors. It currently has over 100 testing technicians, who have been commissioned by the Provincial Department of Construction and the Municipal Construction Bureau to conduct seismic safety assessments in the Sichuan disaster area and primary and secondary schools across Jiangsu Province, completing an assessment area of over 4 million square meters.\nJiangsu Niga Technology Co., Ltd. has a registered capital of 30 million yuan. It is a technology-leading high-tech enterprise specializing in advanced engineering materials, committed to the research, development, production, and application of high-performance concrete admixture-related technologies. Its R&D and industrialization base, with an investment of 120 million yuan and covering an area of 96 mu, is located at No. 1 Niga Road, Wujin District, Changzhou City, Jiangsu Province. The company has formed industry-university-research, school-enterprise-institute, and science-technology-trade cooperation platforms with China Academy of Railway Sciences, Southeast University, Nanjing Tech University, Jiangsu Construction Engineering Group, and many other universities, institutes, and enterprises. In the field of building powder materials, Niga Technology is one of the top ten national brands. It has 15 years of experience in material R&D and engineering application for high-performance concrete admixtures, and insists on an independent innovation path in technological progress, product processes, patent applications, and market promotion.\nThe base has production lines with an annual output of 400,000 tons of building powder materials and 200,000 tons of high-performance concrete admixtures. Building energy-saving materials have been promoted and applied in 20 million square meters of buildings. Maintenance and reinforcement materials, plastering gypsum, ready-mixed mortar, high-speed railway mortar, home decoration auxiliary materials, and high-performance concrete admixtures have formed a complete system of scientific research and development, large-scale production, and professional technical services. The technical products are widely used in various industrial and civil buildings, water conservancy, highways, and high-speed railways. In product application, the company adheres to expert-style service and consultative marketing.\nJiangsu Dingda Building Materials Co., Ltd. has a registered capital of 30 million yuan. It is a high-tech enterprise dedicated to the production and R&D of concrete admixtures, with an annual production capacity of 100,000 tons. The company insists on technological innovation and management innovation. Its R&D team is strong, including 8 members with master's degrees and 22 with intermediate or senior professional titles. The company has successfully developed high-sulfonated melamine high-efficiency water reducer, aminosulfonate high-efficiency water reducer, polycarboxylate high-efficiency water reducer, and anti-permeability and crack-resistant agent, holding 4 invention patents and 8 utility model patents. In recent years, multiple scientific research achievements have passed provincial and municipal appraisals, laying a solid technical foundation for the company's further development. Additionally, the company has established an ERP system, providing material and technical guarantees for improving management efficiency and rationally allocating various company resources.\nChangzhou Dingda Building New Technology Co., Ltd. has a registered capital of 10 million yuan and strong professional technical force. It is a technology-based comprehensive entity integrating scientific research, design, and professional building technical services, focusing on the development and promotion of new building technologies and materials. It holds special professional engineering contracting qualifications issued by the Ministry of Construction and is one of the earliest two professional reinforcement companies in Jiangsu Province. It has long been engaged in structural reinforcement design and construction for strengthening and rectifying deviations in engineering structures, and strives to solve difficult problems in building engineering. It has extensive experience in anti-floating treatment of underground buildings, design and construction of deep foundation pit support, soft soil foundation reinforcement, jet grouting pile construction, grouting construction, and deviation rectification. It currently possesses qualifications for professional contracting of foundation and groundwork engineering, anti-corrosion and thermal insulation engineering, building waterproof engineering, and prestress engineering. Since its establishment, it has participated in the compilation of the CECS standard "Technical Specification for Strengthening Concrete Structures with Cement Composite Mortar Steel Mesh," obtained multiple invention and utility model patents in polyurethane and lightweight concrete, and formulated 9 enterprise standards for structural adhesives, carbon fiber, and others.