هل تتشقق منتجات مصنعي GRC بسهولة؟ تقرير بحثي حول تقنية مقاومة التشقق

Cracking is a common issue with GRC products, but it can be effectively prevented through technical measures. Through 28 years of technical accumulation, Qinglong GRC manufacturer has achieved remarkable results in crack resistance, keeping the product cracking rate at a low level within the industry.

In terms of material formulation, Qinglong uses low-alkali cement and alkali-resistant glass fibre to improve crack resistance at the source. By optimizing the mix proportion, the water-binder ratio is reduced and density is improved. The addition of polypropylene fibres forms a secondary reinforcement network that effectively inhibits crack formation. In the curing process, steam curing is adopted with controlled heating and cooling rates to reduce thermal stress. This comprehensive technical solution was successfully applied in the Wuhan Han Show Theatre project, which has shown no cracking in its 10 years of use.

Impact of Raw Material Selection on Crack Resistance

Use low-alkali cement to reduce the risk of alkali-aggregate reaction. Use alkali-resistant glass fibre to improve long-term durability. Optimize aggregate gradation to increase density.

Key Role of Mix Proportion Design

Reduce the water-binder ratio to minimize shrinkage. Add shrinkage-reducing admixtures to control drying shrinkage. Use expanding agents to compensate for shrinkage. These measures effectively reduce cracking.

Key Points of Production Process Control

Strictly control mixing time to ensure uniformity. Use layered pouring to reduce defects. Optimize vibration techniques to avoid over-vibration.

Importance of the Curing Regime

Cure promptly to prevent plastic shrinkage cracks. Control heating and cooling rates to reduce thermal stress. Maintain appropriate humidity to reduce drying shrinkage.

Through systematic measures, the cracking issue of GRC products can be effectively controlled. Choose a manufacturer with advanced technology to obtain high-quality products.