هل منتجات GRC عرضة للتشقق؟ تقرير بحثي عن تقنية مقاومة التشقق من مصنع تشينغلونغ لـ GRC

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

In terms of material formulation, Qinglong uses low-alkali cement and alkali-resistant glass fibers to improve crack resistance at the source. By optimizing the mix proportion, it lowers the water-binder ratio and increases density. Adding polypropylene fibers creates a secondary reinforcement network that effectively suppresses 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 10 years of use.

The Impact of Raw Material Selection on Crack Resistance

Low-alkali cement is selected to reduce the risk of alkali-aggregate reaction. Alkali-resistant glass fibers are used to improve long-term durability. Aggregate gradation is optimized to increase density.

The Key Role of Mix Proportion Design

Lowering the water-binder ratio reduces shrinkage. Adding shrinkage-reducing admixtures controls drying shrinkage. Using expansive agents compensates for shrinkage. These measures effectively reduce cracks.

Key Points of Production Process Control

Mixing time is strictly controlled to ensure uniformity. Layered casting is adopted to reduce defects. The vibration process is optimized to avoid over-vibration.

The Importance of the Curing Regime

Timely curing prevents plastic cracks. Controlling heating and cooling rates reduces thermal stress. Maintaining appropriate humidity reduces drying shrinkage.

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