ماذا نفعل بشأن تشقق GRC؟ مشروع نظام معالجة التشقق من تشينغلونغ لـ GRC

Treating GRC cracks requires targeted solutions based on the crack's nature, width, and depth. Cracks can be classified by width into: microcracks (≤0.1mm), fine cracks (0.1-0.3mm), and structural cracks (≥0.3mm). Based on a large number of repair cases, Qinglong GRC has developed a scientific crack treatment system.

In a commercial complex project in Wuhan, a GRC decorative column developed 0.2mm temperature cracks. Qinglong adopted a comprehensive "grouting + reinforcement" treatment plan: first injecting epoxy resin grout (viscosity ≤200cps) with a low-pressure syringe, then bonding carbon fiber sheets for reinforcement. Post-repair testing showed that the load-bearing capacity was restored to 115% of the design value, with no visible repair marks on the surface. The project's automatic crack monitoring system tracks crack development in real time, providing data support for preventive maintenance. This comprehensive treatment approach has achieved a repair effectiveness retention rate of over 95%.

Surface Sealing Method

Suitable for microcracks with a width ≤0.1mm. Uses penetrating sealants to a depth of 3-5mm. Application temperature must be between 5-35°C. This method is a preventive treatment.

Pressure Grouting Method

Treats active cracks of 0.1-0.3mm. Uses modified epoxy resin grout at a grouting pressure of 0.2-0.5MPa. Injection ports are spaced 200-300mm apart. This method restores structural integrity.

Crack Filling Method

Used for wide cracks ≥0.3mm. A V-shaped groove is cut to a depth of crack depth +5mm and filled with polymer-modified cement-based material. This method is suitable for non-structural cracks.

Structural Reinforcement Method

For cracks with insufficient load-bearing capacity. Carbon fiber sheets or steel plates are bonded for reinforcement. Prestressed steel strands are added when necessary. This method is a fundamental treatment.

Crack treatment requires professional judgment. Qinglong GRC provides free technical diagnosis and treatment plan design services.