Reinforced concrete static cutting manufacturer informed you "sticky steel reinforcement".
With the improvement of people's quality of life, the quality of the housing environment and residence is more and more important. The adoption of the correct house reinforcement skills can effectively improve the bearing capacity of the house, ensure the level of consolidation of the building structure, and then better complete the use of building functions. In general, house reinforcement can be divided into maintenance reinforcement of damaged houses and preventive reinforcement of progressive house damage. How to strengthen the house by sticking steel?
Bond steel reinforcement
Construction process of bonded steel reinforcement
Surface treatment, drilling, bolt, hole, adhesive manufacture, glue and paste, inspection, maintenance.
1. surface treatment
1. The concrete surface should be cut off the decoration layer, remove oil dirt, dirt, and then use a corner mill to grind away the 1-2 mm thick surface, the larger depression with leveling glue repair flat, grinding end with compressed air blowing dust, and finally with cotton cloth with acetone wipe clean the surface, until the surface is completely dry after the stand-by.
2. The surface of the steel plate is roughened and rusted by the angle grinder until it is polished and glossy. If it is clean before use, just wipe it with dry cloth. Otherwise, cotton can be wiped with acetone to wipe out the appearance.
3. Primary materials used in the process: goggles, dust masks, impact hammers and flat shovels, hand hammers, angle grinders, diamond grinding plates, grinding wheels, air compressors, cotton cloth, acetone.
2. drilling bolt hole
The expansion bolt can be used for pressure fixing, and it is necessary to drill and fix the expansion bolt in the proper direction on the reinforcement component.
3. adhesive manufacturing
1. Construction of structural adhesive A, B two components, take clean containers (plastic or metal basins, no oil, water, impurities) and weighing weighing apparatus according to the specifications of the cooperation ratio, and mixing mixer for about 5-10 minutes until the color evenly stop. Mix well along the same direction in mixing, try to avoid mixing into the air to form bubbles, equipment sites should be ventilated outstanding.
2. the main materials used in the process are mixer, container, weighing apparatus, knife and gloves.
4. glue and paste.
1. After the adhesive is manufactured, apply greasy knife to the surface of the treated steel plate (or concrete surface), the cross-section of the adhesive should be triangular, the center thickness is about 3 mm, the marginal thickness is about 1 mm, then the steel plate is pasted on the surface of the concrete, fixed with the prepared fixed compression system, properly pressurized, and squeezed from the edge joint of the steel plate with glue. Out of degree.
2. the main materials used in the process are knives and gloves.
1., small hammer can be used to strike the steel plate, and the identification function should be judged from the sound. If the useful bonding area of anchorage zone is less than 90%, and that of non-anchorage zone is less than 70%, the steel plate should be stripped and pasted from scratch.
2. Load inspection can also be used for important components. Normal values of normal loads are usually loaded by stages. The testing results are more intuitive and reliable, but the cost is higher and the time consuming is longer. You need jack or counterweight (commonly used sandbags, bricks), dial indicator, crack microscope, weighing instrument.
6. Maintenance; After strengthening, steel plate should be selected 20 mm thick M15 cement mortar surface maintenance, can also choose to coat anti-rust paint maintenance, to prevent steel corrosion.
Shandong Tianqi Architectural Technology Co., Ltd., Shandong Reinforced Concrete Static Cutting Interested Friends can pay attention to our