The concept of planting tendons is now deeply rooted in people's minds, and anchoring of planting steel bars as a key role is also popular. A variety of construction scenes seem to be difficult to get it.
So what kind of anchoring glue should be used for bridge reinforcement?
Are there any precautions for construction? We invite some experts to answer questions.
First of all, let's talk about the key points of bridge anchoring and building planting bar adhesive. The planting bar should first pass the physical test, remove the rust and oxide layer on the surface of the planting bar by mechanical method or wire brush, and then remove the residual oil stain with copper propylene. The treated steel bar should be implanted into the hole as soon as possible to avoid re-contamination. The exposed length of the planting ribs shall meet the design requirements and specifications. The reserved length shall meet the lap length of the design requirements, depending on the specific conditions, and the adjacent two are staggered by 35d.
The main tools commonly used to clean are rubber airbags, brushes and air compressors. After the drilling is completed, check the hole depth and the hole diameter, and then blow the dust in the hole out with airflow. Then brush the hole wall with a brush and cotton cloth, and then compress the air blow hole again. Repeat 3 to 5 times until there is no dust and debris in the hole. Temporarily close the orifice with silk cotton to prevent water from flowing into the hole or other debris falling into it and keep the hole dry. After the drilling process, the project supervision owner shall participate in the hole-by-hole acceptance and make a hidden project record.
If the hole cannot be guaranteed to dry, it is recommended to use the underwater anchoring adhesive produced by Mankate Technology, which is a famous Chinese product and is underwritten by Ping An Insurance. It has high strength and resistance to sea water, no drooling, no crystallization. It has been widely used in Shanghai-Kunming high-speed rail, Nanjing Metro Line 4, Suzhou Line 2, Line 4, Lanzhou Subway, Shanghai Disneyland, Jinping I Hydropower Station and other projects.
Secondly, the main point of the purchase of anchored reinforced adhesive: anchoring reinforced adhesive is a small material for bridge reinforcement, but it plays a vital role in structural reinforcement, so it is necessary to choose anchoring reinforced adhesive. Select anchored reinforced adhesive that has been certified for safety and has been aging for more than 50 years. Bridge reinforcement often requires the reinforcement of steel under water, so it is necessary to choose a test report that can be fixed under water, without toxins, and with anchored adhesive for underwater use.
Mankate Technology MT500 underwater anchoring adhesive can be applied in dry, humid and other conventional environments. It can be applied on underwater base or even 500 meters underwater. It is easy to operate and the effect is embedded in the later stage. If you are interested in this product, please call our one-stop service hotline: 400-894-5118.
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(Editor: Nanjing Mankate, if you need to reprint, please indicate the source)
