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In depth analysis of the characteristics of glass fiber reinforcement products by Anhui Sende New Material Technology Development Co., Ltd
——Innovative Application Solution Based on JG/T406 Standard
Dear partner:
As a high-tech enterprise deeply engaged in the field of new building materials, Anhui Sende New Materials Technology Development Co., Ltd. has always taken the industry benchmark JG/T406 "Glass Fiber Reinforced Plastic Reinforcement for Civil Engineering" standard as the research and development benchmark, and is committed to providing high-performance and highly reliable glass fiber reinforced plastic reinforcement (GFRP reinforcement) products for global infrastructure projects. This article will comprehensively interpret the ten core advantages of Sende GFRP reinforcement from the perspective of engineering application, combined with the core indicators of JG/T406 standard.
1、 Super strong mechanical performance: reshaping the safety boundary of structures
Breakthrough in tensile strength: The measured tensile strength of the product is over 1200MPa, which is 3-4 times that of ordinary steel bars (JG/T406 standard requires ≥ 800MPa). In a foundation pit support project of a super high-rise building in Shenzhen, it successfully replaced traditional steel bars to achieve a 280% increase in single bearing capacity and significantly reduced the amount of steel bars used by 35%.
Elastic modulus optimization: Through patented fiber arrangement technology, the elastic modulus is controlled at 42GPa (standard requirement ≥ 30GPa), while maintaining high strength characteristics, the coordination with concrete deformation is improved by 40%, effectively controlling the width of structural cracks ≤ 0.2mm.
Fatigue durability breakthrough: After 2 million cycles of loading testing (JG/T406 standard requires 1 million cycles), the residual strength retention rate reached 92%, especially suitable for dynamic loading environments such as bridges and ports. The application of the Wuhan Yangsi Port Yangtze River Bridge anchorage project shows that the fatigue damage value during the 5-year service life is only 0.07%.
2、 Extreme environmental adaptability: breaking through the limitations of traditional materials
Corrosion resistance revolution: Soaking in 5% NaCl solution for 3000 hours (equivalent to 30 years in marine environment), the quality loss rate is less than 0.3% (JG/T406 standard requirement ≤ 1%). The application of Qingdao Jiaozhou Bay underwater tunnel has proven that compared with ordinary steel bars, the anti-corrosion cost is reduced by 85%, and the service life is extended by more than three times.
Breakthrough in weather resistance: In extreme temperature environments ranging from -60 ℃ to 150 ℃, the strength retention rate is greater than 95%. In the permafrost region of the Qinghai Tibet Plateau, the tower foundation project successfully withstood the test of an annual temperature difference of 85 ℃, solving the industry problem of traditional material freeze-thaw cracking.
UV resistance enhancement: Using nanoscale TiO2 coating technology, after 3000 hours of xenon lamp accelerated aging test (equivalent to 15 years outdoors), the color fastness maintains 4.5 levels (up to 5 levels), especially suitable for exposed structures such as bridge guardrails and photovoltaic brackets.
3、 Construction Performance Innovation: Refactoring the Efficiency System of Operations
Lightweight advantages: With a density of only 1.9g/cm ⊃3; (1/4 of steel bars), a single 12m long Φ 25mm steel bar weighs only 14.2kg. The assembly efficiency of shield tunnel segments for Guangzhou Metro Line 18 has been improved by 40%, and labor costs have been reduced by 60%.
Cutting convenience: equipped with a dedicated diamond saw blade, single cutting time ≤ 3 seconds (25 seconds for steel bars), no sparks generated, especially suitable for explosion-proof requirements such as coal mine tunnels and oil and gas stations.
Innovation in Connection Technology: The independently developed mechanical connection sleeve has a tensile strength of over 95% of the base material (JG/T406 standard requires ≥ 90%), achieving a daily connection volume of over 800 pieces and a 3-fold increase in efficiency in the Chengdu Tianfu International Airport terminal project.
4、 Functional integration innovation: ushering in the era of intelligent construction
Electromagnetic transparency characteristics: relative magnetic permeability μ r=1.002. In special scenarios such as magnetic resonance medical buildings and precision laboratories, the electromagnetic interference problem caused by traditional steel bars has been successfully solved. It has been applied in a proton heavy ion hospital in Shanghai, and the imaging clarity of the equipment has been improved by 27%.
Controllable conductivity: Through fiber surface treatment technology, the volume resistivity can be adjusted from 106 to 1012 Ω· cm. In intelligent road monitoring systems, it can be used as a structural material and integrated with sensor functions to achieve real-time monitoring of stress and strain.
Breakthrough in flame retardant performance: Oxygen index reaches 32% (JG/T406 standard requirement ≥ 28%). In a comprehensive pipe gallery project in Nanjing, fire tests showed that the combustion growth rate index was only 75W/s (standard requirement ≤ 1200W/s), providing dual protection for underground space safety.
5、 Full lifecycle value: redefining cost-effectiveness
Life cycle cost analysis: Calculated based on a 50 year design life, although the initial cost is 1.8 times that of steel reinforcement, considering anti-corrosion maintenance (saving 85%), testing costs (reducing 70%), structural reinforcement (avoiding 90%), etc., the comprehensive cost is reduced by 42%.
Carbon footprint optimization: Production energy consumption is only 1/5 of steel bars, and each ton of GFRP bars can reduce CO ₂ emissions by 1.2 tons. In the green building demonstration project in Xiong'an New Area, it helped the project obtain LEED Platinum certification.
Recyclable design: Adopting a thermoplastic resin system, the product can be 100% recycled and reused after retirement. A recycling network covering the Yangtze River Delta has been established to promote the development of circular economy in the building materials industry.
6、 Quality Assurance System: Building the Foundation of Trust
Full process monitoring: From raw material inspection (glass fiber content deviation ≤ ± 1%), online tension control (± 2N) to finished product testing (100% sampling rate per batch), 28 quality checkpoints have been established, with a product qualification rate of 99.97%.
Authoritative certification system: Through CE certification and ISO10406-1 international standard testing, we have become the only mainland supplier in the Hong Kong Zhuhai Macao Bridge artificial island project to pass the rigorous testing of the Hong Kong Civil Engineering Department.
Application technical support: Equipped with a professional structural analysis team, we can provide:
Nonlinear finite element simulation
Durability Special Design
Customized construction process plan
Anhui Sende New Material Technology Development Co., Ltd. has always been committed to the mission of "innovating material technology and building future infrastructure". Our GFRP reinforcement products have been validated for value in over 300 key projects. Choosing Sende is not only about choosing high-quality products that comply with JG/T406 standards, but also about choosing a full lifecycle solution partner. Let's join hands and reshape the new possibilities of engineering construction with new material technology.