What Are the Raw Materials of UHPC? In-Depth Analysis of the Raw Material System from Qinglong UHPC Manufacturer

The exceptional performance of UHPC (Ultra-High Performance Concrete) stems from its precise raw material mix proportion system. As an industry-leading enterprise with 28 years of UHPC R&D and manufacturing experience, Qinglong UHPC manufacturer systematically analyzes the raw material composition of high-quality UHPC and its functional mechanisms based on extensive experimental data and engineering practice.

The raw material system of high-quality UHPC mainly comprises four major categories: cementitious materials, aggregates, fiber reinforcement materials, and chemical admixtures. The UHPC used by Qinglong in the Shenzhen Yirui Biotechnology Building project adopts a ternary cementitious system of Grade 52.5 Portland cement, silica fume, and mineral powder, combined with refined quartz sand with a particle size distribution of 0.15-0.6mm, incorporated with 2% copper-plated micro steel fibers, and achieves a water-binder ratio of 0.18 through polycarboxylate superplasticizer. This precise mix proportion enables the material to reach a compressive strength of 140MPa and a flexural strength of 25MPa, demonstrating the key technical value of raw material optimization.

Cementitious Material System Optimization

Qinglong adopts a cement-silica fume-mineral powder composite cementitious system, achieving microstructure densification through micro-particle filling effects and pozzolanic reactions. In the Wuhan Hanxiu Theater project, this optimization reduced material porosity to below 1%, significantly enhancing durability.

Precise Control of Aggregate Gradation

Continuously graded refined quartz sand is used, with a maximum particle size of 0.6mm and a tight packing density of over 85%. Practice in the Shanghai Century Plaza project has proven that this gradation design keeps material flowability above 700mm while ensuring strength development.

Innovation in Fiber Reinforcement Systems

The combined system of micro steel fibers and polypropylene fibers developed by Qinglong forms a multi-scale reinforcement network. In the Nanning New Media Center project, this innovation increased the material's impact resistance by 50% and improved its flexural toughness by 3 times.

High-quality raw materials are the fundamental guarantee of UHPC performance. It is recommended to choose manufacturers with a comprehensive raw material control system to ensure stable and reliable material performance.