Zhoushan Wind Power Grouting Material sikagrout 3500

Ningbo Bofang Wind Power Technology Co., Ltd. was established on February 15, 2016. The legal representative is Wang Shulan.
Application Method of Wind Power Grouting Material
1. Base Surface: Roughen concrete surfaces, blow away dust or sand from bolt holes, and clean metal surfaces of grease or rust. Pre-soak the concrete base surface in clean water, ensuring the concrete base is free of standing water during grouting.
2. Preferably use mechanical mixing. Start by adding 2/3 of the total water and mix for 3 minutes, then add the remaining 1/3 water and mix until a smooth and even consistency is achieved.
3. Water-to-material ratio: 12.5%
4. Grouting for wind turbine foundations should start from one side and continue until the other side overflows; simultaneous grouting from opposite sides is not allowed. Once the grouting begins, it must be conducted continuously, and smoldering may shorten the grouting time.
5. After grouting, watering and maintenance should be done promptly, and cover with wet straw bags or plastic film. The maintenance period should not be less than 3 days.

Wind turbine grouting material, reinforcement drawings for beams, columns, and embedded steel bars; suitable for subway, shoe, and underground construction joints, with the use of a reverse drive method for embedding grouting material; concrete engineering reinforcement and leakage repair; grouting for various foundation projects and emergency repair projects involving ground settlement. The grouting material for pressure testing in inspection holes is conducted according to the safety operation procedures for double-hole pressure testing, divided into three stages (50.6, 101.3, and 151.9 KPa for wind power). Electric grouting is possible, and before the test, the material should be flushed with expanded pressure water using a pre-set tension force, which is approximately 1.5 times the pre-set tension. After obtaining stable total, conduct the official pressure water tests for the three stages. When the moisture absorption value is below the wind power control parameters, consider the satisfaction requirements for the problematic grouting. After 12 days of grouting, perform watering maintenance on the grouting material to ensure that the surface remains moist for 24 hours, especially with an initial maintenance period of at least 14 days.

Features of Wind Turbine Foundation Grouting Material
Early strength, high strength, high durability, good resistance to chloride ion penetration, and frost resistance.
2. High flowability, pumpable, non-dripping, and easy to install.
3. Compound expansion with dual effect, no shrinkage.
4. Free from rust on rebar.

Grouting material for wind power connects with the capillary vessels of the original concrete, allowing the concrete colloidal solution to interpenetrate, creating a self-healing effect for the surface. It has stronger compatibility, work flexibility, and permeability with rural substrates. The grouting material is zero-pollution, aging-resistant, and has excellent performance. It does not easily emit harmful substances during application, and it does not脆化 or weather easily without grouting, offering good performance. The grouting process is simple and efficient. After the equipment foundation grouting is completed, it is advisable to cut a 45-degree angle along the bottom edge of the grouting material after it has started to set. If edge trimming is not possible, the surface of the grouting layer should be smoothed with a bread knife after it has set. For the renovation and reinforcement grouting of reinforced concrete, the concrete surface of the epoxy grout material should be fully prepared.
Since its establishment, the company has continually strived for progress and innovation, adhering to the "best" development philosophy. It has provided services to numerous domestic and international industry clients in high-speed rail projects, building reinforcement, power, waterproofing, and leak prevention, among others. Particularly, its堵漏剂 (leak-proof agent), 硫铝酸盐水泥 (sulphoaluminate cement), high-strength non-shrinkable grout, and self-leveling mortar product lines have become widely recognized as industry standards.