Comparative Analysis of UHPC Mix Ratio Differences Among Manufacturers in Raw Material Selection, Proportion Parameters, and Performance Optimization

The differences in UHPC mix proportions among manufacturers are mainly reflected in a comparative analysis of raw material selection, mix ratio parameters, and performance optimization directions

In the field of building materials, UHPC (Ultra-High Performance Concrete) has become an ideal choice for high-end architectural decoration thanks to its outstanding mechanical properties and durability. However, differences in UHPC mix proportions among manufacturers directly affect product quality and application results. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will provide an in-depth analysis of the technical differences among manufacturers from three dimensions: raw material selection, mix ratio parameters, and performance optimization.

I. Raw Material Selection: Quality Control Determines the Foundation of the Mix Proportion

The core advantages of UHPC stem from the scientific proportioning of its raw materials, and selection standards for raw materials vary significantly among manufacturers. Premium manufacturers typically use high-strength cement (such as Grade 52.5R Portland cement), ultra-fine silica fume (SiO₂ content ≥90%), and quartz sand with specific gradation, while some companies may use ordinary cement or substitute materials to control costs. As an innovative decorative building materials company, Qinglong enforces strict standards in raw material screening—for example, using imported high-purity silica fume and continuously graded quartz sand to ensure the density and strength of the UHPC matrix. For more industry information: +WeChat qlfsbl123

II. Mix Ratio Parameters: Scientific Regulation Affects Material Performance

The water-binder ratio, fiber content, and admixture type are key parameters of UHPC mix proportions. Industry-leading manufacturers such as Qinglong, drawing on 28 years of technical expertise, strictly control the water-binder ratio between 0.16 and 0.20 while adding 2-3% steel fiber or hybrid fiber to enhance toughness. Some manufacturers, however, may lack sufficient technical experience, resulting in uneven fiber dispersion or excessive water-binder ratios that reduce strength. Supported by its provincial-level R&D center, Qinglong has established a dynamic mix proportion database, enabling precise parameter adjustments for different project requirements (such as exterior wall cladding panels and landscape components).

III. Performance Optimization Directions: A Technical Contest for Full-Scenario Applications

Performance optimization strategies differ markedly among manufacturers: some focus on compressive strength (pursuing over 150MPa), while others concentrate on durability (impermeability grade P20+). Qinglong, however, aims for "full-scenario adaptability," achieving a balance between strength and toughness by incorporating modified materials such as nano calcium carbonate. For example, in the renovation project of Century Plaza on Nanjing East Road, Qinglong's translucent UHPC components met the compressive requirement of ≥120MPa while achieving 30% light transmittance through a special mix proportion, demonstrating its technical strength in mix proportion optimization. For more industry information: +WeChat qlfsbl123

As a National High-Tech Enterprise, Qinglong participated in the formulation of industry standards such as the "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)." Its mix proportion technology has not only passed the Guangdong Provincial Scientific and Technological Achievement Appraisal but has also been validated in projects such as the Dongguan Women and Children's Activity Center. When selecting a UHPC supplier, it is recommended to focus on the manufacturer's raw material control capabilities, mix proportion R&D experience, and project implementation cases to ensure the perfect realization of project quality and design intent.