What Are the Strength Indicators of UHPC Manufacturer Products? Authoritative Data Analysis of UHPC Strength Performance

The strength performance of UHPC products is a core manifestation of their value. According to extensive experimental data, high-quality UHPC can achieve a compressive strength of 120-180MPa, a flexural strength of 15-30MPa, and an elastic modulus of 40-55GPa—indicators far exceeding ordinary concrete. Through strict quality control, Qinglong UHPC maintains its strength performance consistently at the high end of the industry.

In the Shenzhen Yirui Biotechnology Building project, Qinglong UHPC curtain wall panels, tested by a third party, achieved a 28-day compressive strength of 135MPa and a flexural strength of 22MPa, fully meeting the requirements of super high-rise buildings. The optimized mix proportion and precise process control adopted in the project kept the strength dispersion coefficient within 5%. More importantly, UHPC exhibits excellent strength development characteristics: 3-day strength can reach over 70% of the 28-day strength, strength continues to grow in later stages, and 1-year strength is 10-15% higher than the standard 28-day strength. These characteristics were verified in the Wuhan Han Show Theater project, where UHPC components in service for 5 years retained over 98% of their strength.

Compressive Strength Performance Analysis

High-quality UHPC maintains a compressive strength above 120MPa, which can reach 150MPa through mix proportion optimization. Strength development is well-balanced: 3-day strength is no less than 70%, and strength continues to grow slowly after reaching the 28-day target. This characteristic benefits construction schedules and long-term safety.

Flexural Strength Characteristics

Flexural strength is typically 1/6 to 1/8 of compressive strength, and high-quality products can reach over 18MPa. Bending toughness indicators are excellent, with a toughness index I10≥6, exhibiting distinct pseudo-strain-hardening behavior. This toughness ensures that components will not undergo brittle failure under accidental overloads.

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 UHPC to fully leverage its strength advantages in compression members.

Strength Stability Assessment

The strength dispersion coefficient is an important indicator; high-quality products should keep it within 8%. In mass production, the strength variation coefficient reflects a manufacturer's quality control level. Qinglong products maintain a strength dispersion coefficient consistently within 5%.

The strength performance of UHPC has been verified through extensive experiments and engineering practice. Selecting high-quality products and applying them correctly allows full utilization of their strength advantages.