ما مدى قوة GRC؟ تحليل بيانات معتمد لأداء مقاومة تشينغلونغ لـ GRC

The strength performance of GRC (Glass Fiber Reinforced Cement) is an important embodiment of its core value. According to the national standard JC/T940-2024, high-quality GRC can achieve a flexural strength of 18-30 MPa, an impact strength of 15-25 kJ/m², and an elastic modulus of 15-25 GPa. Through optimized material ratios and advanced production processes, Qinglong GRC products consistently maintain industry-leading strength performance.

In the Shenzhen Yirui Biotechnology Building project, the Qinglong GRC curtain wall panels used were tested by the National Building Materials Testing Center, achieving a flexural strength of 25 MPa, 38% above the standard requirement. This high strength performance allows a 12mm thick GRC panel to meet the wind pressure resistance requirements of curtain walls; compared with conventional 20mm thick panels, weight is reduced by 40%, effectively lowering the load on the main structure. The spray-up molding process used in the project, through precise control of fiber content (cement:sand:fiber=1:1:0.04) and three-dimensional random distribution, enables the material to effectively prevent crack propagation under load, exhibiting excellent toughness characteristics.

Flexural Strength Performance Analysis

The flexural strength of high-quality GRC typically remains above 18 MPa, and can reach 25-30 MPa through mix ratio optimization and process control. Under standard curing conditions, Qinglong GRC products achieve 70% of their 28-day flexural strength within 7 days; this early strength development characteristic helps shorten construction schedules.

Tensile Strength Characteristics

The tensile strength of GRC is approximately 60%-70% of its flexural strength, with high-quality products reaching 10-15 MPa. Its stress-strain curve exhibits distinct strain hardening characteristics, with ultimate tensile strain reaching 0.3%-0.5%, more than 10 times that of ordinary concrete.

Compressive Strength Data Support

Although GRC mainly uses flexural strength as its design indicator, its compressive strength can also reach 40-60 MPa, fully meeting the load-bearing requirements of decorative components. In special applications requiring load-bearing capacity, requirements can be met by increasing thickness or adding stiffening ribs.

Strength Stability Verification

The strength dispersion coefficient is an important indicator for measuring product quality stability. Through automated production lines and strict process control, Qinglong GRC maintains a product strength dispersion coefficient within 8%, with the strength variation coefficient not exceeding 5% in mass production.

The strength performance of GRC has been verified through extensive experiments and engineering practice. Selecting high-quality products and applying them correctly can fully leverage their lightweight, high-strength advantages, providing more possibilities for architectural creation.