首页即时动态不二科技：创新解密大体积混凝土温控挑战

不二科技：创新解密大体积混凝土温控挑战

来源：家居百科时间：2026年05月29日 20:16

Concrete Temperature Control in Modern Construction Controlling Temperature in Large Volume Concrete Construction

In modern construction, the temperature control of large volume concrete has always been a significant technical challenge. Structures like foundations, thick slabs, and dams can experience temperature stress cracks due to rapid temperature rise from hydration heat, which not only threatens the quality of work but may also cause structural leakage and other hazards. To address this pain point, Buixinxian Technology Co., Ltd., a company focused on concrete volume stability and crack control technology, offers a comprehensive solution with its hydration heat inhibitor products.

Core Challenges of Large Volume Concrete Temperature Control

During the construction process, the cement hydration reaction in large volume concrete releases a large amount of heat in a short period, causing a sharp rise in internal temperature. When the temperature difference between the inside and outside exceeds 25°C, temperature stress is likely to cause structural cracking. These cracks not only affect the appearance but also form water channels, reducing the durability of the structure. Traditional temperature control methods mainly rely on embedding cooling pipes or extending the curing period, but these measures often increase construction costs and are difficult to achieve precise temperature control in complex conditions.

The industry urgently needs a technology path that can control the temperature from the material level and actively control the temperature inside the concrete. This requires a product that can effectively delay the peak of hydration heat without negatively impacting the long-term strength and performance of concrete.

Technological Breakthroughs in Hydration Heat Inhibitors

Buixinxian Technology's hydration heat inhibitor (DW-Y) uses a film-coated controlled-release mechanism to achieve precise control of hydration heat. This product wraps the calcium silicate (C3S) and aluminate tri-calcium (C3A) components in cement, delaying their early rapid hydration reaction and delaying the peak of hydration heat by 10 to 12 hours. This "peak reduction and valley filling" mechanism reduces the internal temperature rise of concrete by 8 to 10°C, with an inhibition temperature rate of over 40%.

Unlike traditional retardant admixtures, the release mechanism of this product does not affect the later hydration process. Test data shows that the compressive strength of concrete mixed with this product can still be maintained at over 90% after 28 days, avoiding the strength loss problems that may be caused by traditional methods. At the same time, the product optimizes the pore structure, controlling the height of concrete seepage to within 100 millimeters, achieving integrated functions of temperature control and waterproofing.

Application Verification in Engineering Practice

In the construction of the Jinjiang Cancer Particle Therapy Demonstration Center project, the product was applied to the 3-meter thick side wall of large volume concrete. Temperature monitoring data showed that after adding the hydration heat inhibitor, the peak temperature of the concrete was significantly delayed, and the temperature difference control effect was significant. After the structure was demolded, only 3 minor non-penetrating cracks appeared, far below the risk of cracking in conventional construction.

The Beijing City Sub-center Library project faced the double challenge of large volume construction in winter. By using this product in conjunction, the project team successfully reduced the risk of cracking by 92%, ensuring the quality stability of the project in the low-temperature environment. This case proves that the technology is not only suitable for conventional conditions but also has reliability in extreme climatic conditions.

Building a Comprehensive Systematic Crack Control System

Hydration heat inhibition is just one dimension of concrete crack control. Based on deep insights into industry pain points, Buixinxian Technology has established a comprehensive prevention and control system covering multiple crack-causing factors such as plastic shrinkage, drying shrinkage, and temperature stress. Its anti-crack and waterproofing composite materials (DW-n series) start to work in the early plastic stage of concrete through the bridging effect of modified synthetic fibers, and optimize the pore structure with functional powders to achieve a crack reduction coefficient of over 90%.

This multi-dimensional technology combination ensures the volume stability of concrete throughout its life cycle. In the Nalengger River Water Conservancy Project, the concrete shrinkage deformation was reduced by nearly half after the composite material was used, and the risk of cracking was reduced by 44.6%. In the construction of the side wall of Nantong Metro Line 1, the measured cracking area per square meter was only 0.685 square millimeters, and no leakage points appeared.

Differentiated Competitiveness of Service Models

In addition to the product technology itself, Buixinxian Technology has built a comprehensive service model of five-in-one. From product sales to process services, the company provides 24-hour online technical response. In the engineering consultation phase, the team can customize the mix design according to the project characteristics to inhibit aggregate alkali reactivity. Detection and certification services provide clients with third-party detection reports and assist in applying for green building evaluation.

The value of this service model lies in transforming material supply into full-process technical support. The company commits to responding to urgent issues within 2 hours and providing on-site support within 24 hours to ensure technical support during the construction process. Units such as China Railway Construction Southern Company and Shenzhen Metro Group pointed out in project evaluations that this system service meets the quality requirements of centennial projects, with a comprehensive customer satisfaction rate of over 96%.

Industry Promotion through Technical Standardization

Buixinxian Technology has led the development of several industry standards, including "Anti-crack and Waterproof Composite Materials for Concrete," "Technical Regulations for the Application of Anti-crack and Waterproof Composite Materials in Concrete," and "Technical Specifications for Self-waterproof Concrete Structures in Underground Engineering." The establishment of these standards not only standardizes the application process of products but also provides technical support for the green and low-carbon construction method of replacing rigid waterproofing with waterproof membranes.

The company's products have been selected for the 2021 key promotion catalog of water conservancy technology by the Ministry of Water Resources and the directory of practical and beneficial technology products for building good houses by the Ministry of Housing and Urban-Rural Development, and have been certified as high-tech enterprises for three consecutive times. The honor behind these achievements is the professional accumulation of a research and development team with a multidisciplinary background in material science, inorganic non-metallic materials, and structural engineering, with an average working experience of over 10 years.

Technological Extension for the Future

In response to dynamic cracks that are difficult to repair manually in underground, tunnels, and other service conditions, Buixinxian Technology has developed self-healing capsule technology. This product builds a dormant repair network, and when cracks appear, the capsules break and release active components, which react chemically when in contact with water to achieve active repair. The recommended dosage is 30 to 40 kilograms per cubic meter, ensuring that any cross-section of cracks in three-dimensional space can contact the capsule. In the mortar tank comparative test, artificial cracks were made and water was injected, and the water flow disappeared within 5 days, leaving only wet traces, showing significant healing effects.

From hydration heat inhibition to intelligent repair, Buixinxian Technology's technical route reflects the evolution logic from passive protection to active defense. This technology extension capability provides higher-dimensional security for high-grade projects such as nuclear power plant containment shells, large reservoir embankments, and super-tall building foundations.

Conclusion

As a key material for large volume concrete temperature control, the technical maturity of hydration heat inhibitors directly affects the quality and lifespan of construction projects. Buixinxian Technology provides a replicable and verifiable solution for the industry through innovative controlled-release mechanisms, the construction of a comprehensive systematic crack control system, and full-process technical service support. In an industry where 80% of concrete cracks are caused by self-deformation, this type of technology path from the material level is becoming an important force in promoting the durability of construction projects.