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Hailing Island Bridge Project, Huaiji–Yangjiang Expressway — Bridge and Under‑Deck Automatic Spraying Curing Mist System
Author:
Hailing Island Bridge Project, Huaiji–Yangjiang Expressway—
Bridge and Ventral Automatic Spraying Curing Mist System
The Hailing Island Bridge is located in the northern waters of the South China Sea, at the southwestern tip of Yangjiang City, Guangdong Province. Spanning from Huaiji to Yangjiang, it has been constructed to boost local economic development and the tourism industry. 2015 Proposed in [year] and constructed by Guangdong Expressway Co., Ltd., 2019 year 9 month 5 On [date], the Hailing Island Bridge project on the Huaiji–Yangjiang Expressway achieved a breakthrough, with the main bridge of the Hailing Island Super‑Bridge—its key structural component—successfully closed, paving the way for… 2020 This has laid a solid foundation for the project’s full completion and opening to traffic this year.
The Huaiji–Yangjiang Expressway’s Hailing Island Bridge project has a total route length of 9.232 kilometers; the construction of the inner tube primarily includes subgrade works, pavement works, bridges, culverts, and interchange flyovers, among others, with a super-large bridge included. 2776m/1 Sit, the road is wide. 26 Rice, a two-way four-lane road with culvert passages. 23 The Way.
The entire construction phase of the project has direct or indirect impacts on the environment.
Ecological impacts: Soil and water loss resulting from subgrade excavation, earth filling, and the sourcing and disposal of excavated materials.
Construction noise: Primarily generated by construction machinery, transport vehicles, pile driving, and soil‑lime mixing.
Construction dust and exhaust gases: dust generated at the construction site, from transport vehicles, and during soil‑lime mixing, as well as asphalt fumes produced during asphalt paving.
The bridge’s structure is durable and corrosion‑resistant, with extremely stringent technical requirements for construction methods, raw materials, and process control. The Hailing Island Bridge project has consistently adhered to the guiding principles of safety and durability coupled with meticulous management, implementing a wide range of targeted measures throughout both the design and construction phases. Innovative practices include fully automated electric‑heating steam curing, an automatic external spray‑curing system for the underside of beam webs, the use of permeable formwork fabric on the molds of marine‑grade concrete structures, and preloading of the counterweight frames of launching girders, among other advanced techniques, resulting in… 8 This minimally invasive innovation has reduced the safety risks associated with high‑altitude manual maintenance at sea, while ensuring both maintenance effectiveness and durability, thereby extending the service life of bridges.
After concrete is poured, proper curing by the construction crew is critical to prevent early surface cracking and ensure adequate strength. Inadequate curing, coupled with improper control of hydration heat during setting and excessive thermal‑stress differentials, can lead to both surface and internal cracking, while simultaneously reducing tensile and compressive strengths. This ultimately compromises the component’s serviceability, shortens its design life, and results in substantial economic losses.
Guangzhou Aogong Spray Equipment Co., Ltd. is a high-tech enterprise in Guangdong Province and a “Little Giant” of technological innovation in Guangzhou. 15 Dedicated for years to nozzles, spray heads, misting equipment, misting systems, disinfection tunnels, humidifiers, dust suppression equipment, and mist-based dust control systems.
2016 This year, we undertook the automatic external-spray curing system for the bottom web of the Hailing Island Bridge project. The concrete automatic spray‑curing system falls within the field of concrete curing technology; it integrates a water‑spray system with an electrical control system and, through the installation of a control system and the addition of traveling rails, enables the prefabricated box girders to… Automatic Spraying and Atomization Curing System , achieving all‑round maintenance to enhance both the quality and efficiency of upkeep, thereby ensuring the concrete strength of precast box girders. This system supports both manual control and automated operation via… PLC Control is implemented to achieve fully automated curing, ensuring the entire girder is thoroughly saturated with moisture, leaving no dead zones and providing complete coverage. This guarantees effective curing, reduces labor costs, and promotes energy efficiency and environmental sustainability while conserving water.
The automatic spray‑curing system also works by allowing fine mist particles to remain suspended in the air, where they bind with airborne dust. Under the influence of gravity, this process effectively suppresses dust while simultaneously absorbing heat from air molecules and evaporating rapidly, thereby achieving a cooling effect.
Guangzhou Aogong Spray Equipment Co., Ltd. - Offering: “Free Design” - “Free samples” “Upholding credibility—honoring commitments” boasts 26 A national patent for a spray product. It is domestic. 48 A leading listed company and nozzle supplier, a designer and installer of spray systems for the Hong Kong–Zhuhai–Macao Bridge, and a contractor for the Wudongde Hydropower Station on the Three Gorges Dam. Dust removal, moisturizing, cooling Spray equipment supplier. We welcome inquiries and collaboration: 13902390973！
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