First,? Product introduction
? By series grouting materials are widely used in the grouting of plant structures, mechanical equipment, electrical equipment installation projects, overhaul and emergency repair projects, port and dock track installation projects, as well as the reinforcement of various concrete structures, waterproof plugging and highway repair. ?
The product is registered with the "BY" trademark. In recent ten years, BY series grouting materials have been successfully applied to many large-scale key projects such as Baosteel Phase II and Phase III. Qinshan Nuclear Power Station Phase II and Phase III projects; WISCO second hot rolled steel plate plant; Shanghai Pudong International Convention and Exhibition Center; Shanghai General Motors Corporation; Shanghai Waigaoqiao Wharf Extension Project; Han Song Paper Industry; Zhenjiang Jin Dong Paper Industry; Xiamen International Convention and Exhibition Center, etc. Involved in metallurgy, paper making, electric power, port, civil, chemical and other industries, it is well received by users with its excellent quality, and now it has exerted a strong influence in more and more fields.
Second, the product features
1, good fluidity: no bleeding, self-leveling effect, can fill all gaps.
2. Early strength and high strength: the compressive strength can reach 30% of the final strength in 24 hours and more than 60% in 3 days. Install the equipment within 1-3 days.
3, no shrinkage, high bonding strength: Slight expansion, good grip with steel bar. Ensure that the anchor bolt is firmly combined with the foundation (steel structure) foundation and new and old concrete.
4. Good durability: it belongs to silicate inorganic castable, which is non-aging, non-corrosive to steel bars and oil stain resistant.
Three. Main technical indicators: See figure.
Fourth, the method of use
Preparation: Clean the surface, and there shall be no debris such as gravel, laitance and oil stain. 24 hours before grouting, the surface should be fully wet. There shall be no water before grouting.
Formwork support: the formwork shall not leak slurry, and the top of the formwork shall be about 50mm higher than the upper surface of grouting.
Stir:? Add a certain amount of water into the mixing barrel, and then pour the materials into the barrel for mixing. From the beginning of feeding to the end of mixing, the mixing time should be controlled at about 3-5 minutes. When mixing, the blades should not rise above the mud level to avoid bringing in air.
Pouring: grout from one side to overflow from the other side, and tamp with bamboo pieces if necessary.
Maintenance: 3-5 hours after grouting, the surface of grouting layer should be polished smooth, and then covered with wet cloth or straw bag for water conservation. The water curing time shall be no less than 7 days, and the watering times shall be subject to keeping the grouting material in a wet state.
Verb (abbreviation for verb) packaging and storage
Moisture-proof packaging, net weight of 25kg/ bag, shelf life of 6 months; Must be stored in a dry and ventilated room, pay attention to moisture, please use it as soon as possible.
Scope of use:
1. Anchor bolts for large equipment and precision equipment.
2. Pouring of steel structures (such as tracks, steel frames and steel columns). ) fixed on the foundation.
3. Post-tensioned prestressed reinforcement grouting.
4. Beam and column reinforcement.
5. Construction joints of subway, tunnel and underground engineering shall be embedded by reverse method.
6. Wall structure thickening and leakage repair.