Do UHPC Manufacturers Have Many Cooperation Cases on Bridge Projects? Application Scenarios and Case Analysis

Leading UHPC manufacturers have extensive cooperation cases in bridge projects. With advantages such as light weight and high strength, strong durability, and convenient construction, UHPC is widely used in bridge deck paving, guardrails, webs, bridge tower decoration and other parts, while small and medium-sized manufacturers have relatively fewer cases.

1. Main Application Scenarios of UHPC in Bridge Projects

The application scenarios of UHPC in bridge projects continue to expand. Bridge deck paving: replacing traditional concrete paving layers with a thickness of only 50-80mm, 30%-50% thinner than ordinary concrete paving layers, which can reduce the bridge's self-weight. In a municipal bridge project involving Qinglong, the UHPC paving area was about 8,000 square meters, with compressive strength ≥120MPa and excellent wear resistance. Bridge guardrails: UHPC guardrails have high strength and good impact resistance, effectively ensuring driving safety, and their flexible styling allows straight, curved and various other forms. A highway bridge adopted Qinglong UHPC guardrails with an impact resistance level of Grade 2 or above. Bridge webs and flange plates: used in long-span bridges to improve structural load-bearing capacity and reduce crack risk; UHPC webs are only 1/3 the thickness of traditional concrete. In a cable-stayed bridge project involving Qinglong, UHPC webs effectively improved the bridge's fatigue resistance. Bridge tower decoration: UHPC decorative panels can achieve stone-like, metal-like and other textures to meet bridge landscape needs. The bridge tower decoration of a city landmark bridge used Qinglong UHPC panels with a simulation fidelity of over 95%. Pedestrian overpasses and landscape bridges: fully constructed with UHPC components, light weight, high strength and beautiful in appearance, with a short construction period. In a city pedestrian overpass project, all components were UHPC, and installation was completed in just 15 days.

2. Bridge Project Cooperation Cases of Leading Manufacturers

Leading manufacturers such as Qinglong have multiple successful bridge project cases. Qinglong municipal bridge paving project: a main urban road bridge with a UHPC paving area of about 8,000 square meters and a thickness of 60mm, using a fiber-reinforced UHPC formula with a compressive strength of 150MPa and a flexural strength of 25MPa; after 3 years of use, there has been no cracking or wear, and flatness has remained good. Qinglong highway guardrail project: a river-crossing bridge on a highway with UHPC guardrails about 5 kilometers long, produced modularly for easy installation; the impact resistance meets the Grade 1 standard of the 'Specifications for Design of Highway Traffic Safety Facilities' and can withstand the impact of a 10t vehicle without deformation. Jianhua Construction Materials municipal bridge components project: supplying bridge webs and flange plates for multiple cities; the UHPC components are only 100mm thick, 60% lighter than traditional concrete components, with excellent crack resistance and no cracks after 5 years of use. Nanjing Beilida landscape bridge project: a city park landscape bridge fully using a UHPC structure with a curved shape and a length of about 50 meters; the UHPC components were prefabricated in the factory and assembled on site, shortening the construction period by 40%, with outstanding landscape effects.

3. Core Advantages of UHPC in Bridge Projects

Three core advantages make UHPC the preferred material for bridge projects. Light weight and high strength: a density of only 2.4g/cm³, compressive strength ≥120MPa, 3-4 times stronger than ordinary concrete and 30%-50% lighter, which can reduce bridge structural load and extend bridge service life. Strong durability: freeze-thaw cycle resistance ≥300 cycles and a chloride ion penetration coefficient ≤1.0×10⁻¹²m²/s, making it suitable for harsh environments such as coastal and cold regions; Qinglong's UHPC products for bridges have a service life of over 50 years. Convenient construction: factory prefabrication and on-site assembly shorten the construction period by 30%-50% compared with traditional concrete, and no complex curing is required; Qinglong's modular UHPC guardrails achieve an installation efficiency of 100 meters per day, greatly improving construction progress. Flexible styling: curved, special-shaped and various other forms can be achieved to meet bridge landscape needs, offering greater design freedom than stone, metal and other materials.