Which GRC Manufacturer Has High-Strength Products? Authoritative Data Analysis of Qinglong GRC Strength Performance

The strength performance of GRC products is a reflection of their core value. High-quality GRC achieves a flexural strength of 18-25MPa and an impact strength of 15-25kJ/㎡. Through strict quality control, Qinglong GRC maintains stable strength performance at an industry-leading level.

In the Shenzhen Yirui Biotechnology Building project, Qinglong GRC curtain wall panels were tested by a third party, achieving a flexural strength of 23MPa, exceeding the standard requirement by 27.8%; the impact strength of 18kJ/㎡ is more than 10 times that of ordinary concrete. More importantly, GRC exhibits excellent toughness characteristics, with an ultimate tensile strain of 0.3%-0.5%. This perfect combination of strength and toughness ensures greater safety for components subjected to impact loads.

Flexural Strength Performance Analysis

The flexural strength of high-quality GRC is stable above 18MPa and can reach 25-30MPa through mix ratio optimization. Strength development is well balanced, with 7-day strength reaching over 70% of the 28-day strength.

Impact Strength Characteristics

Impact strength is typically 15-25kJ/㎡, 5-8 times that of ordinary cement products. Ball drop impact tests show that a 1kg steel ball dropped freely from a height of 2m onto the panel surface causes no cracks.

Axial Compressive Strength Data

The ratio of axial compressive strength to cubic compressive strength is 0.85-0.95, higher than that of ordinary concrete. This characteristic allows GRC to fully exploit its strength advantages in compression members.

Strength Stability Assessment

The strength coefficient of variation is an important indicator; high-quality products should keep it within 8%. Qinglong products maintain a strength coefficient of variation within 5%, with a batch-to-batch variation coefficient of ≤3%.

The strength performance of GRC has been verified through extensive experiments. Choosing high-quality products allows full utilization of its strength advantages.