Quality requirements for masonry of hydraulic slope protection bricks

During the masonry operation of hydraulic slope protection bricks, attention should be paid to surface coverage protection when the low temperature is 0-5. When the lower temperature is 0 or the high temperature exceeds 30, masonry should be stopped. In case of heavy rain, construction should be stopped immediately and the surface should be properly protected. After rain, the accumulated water should be cleaned up first, and the parts washed away by rainwater should be treated in a timely manner. Below, the editor has compiled some quality requirements for masonry. Let's take a look together.
1. Leveling: It should be roughly leveled, and the height difference between adjacent masonry should be less than 20-30 millimeters.
2. Stability: The placement of hydraulic slope protection bricks must be self stabilizing, with the large surface facing downwards, and shaken or hammered appropriately to make it stable.
3. Compaction: Grouting is strictly prohibited from direct contact with stones. The vertical joint mortar filling should be full and compact, and the mortar should be evenly spread. After filling the vertical joint with mortar, it should be inserted until the surface is immersed in water.
4. Misalignment in the same masonry layer: Adjacent stones should be staggered in masonry, and there should be no through joints in the downstream direction. The stones laid adjacent to each other should also be staggered at the joints to avoid vertical penetration of the joints. If necessary, regular installation can be carried out.
5. Brick and stone inspection: The masonry strength of hydraulic slope protection bricks must meet the requirements of the construction drawings. The density and porosity of masonry should be checked, and at least one set of pits should be excavated every 5-10m below one-third of the dam height. For masonry with a dam height exceeding one-third, the number of test pits should be determined through consultation between the supervisor and the contractor, and the measured density and void ratio must meet the construction requirements. The masonry joints should be compact and not elevated or leaked. Conduct water pressure tests on parts with anti-seepage requirements and test the water absorption rate of the inspection unit. The width of the joints on the surface of the masonry should meet the specified requirements.
After the masonry of hydraulic slope protection bricks, they should be cured in a timely manner within 12-18 hours. The exposed surface of masonry and the curing time of exposed wet cement mortar masonry should be maintained for more than 14 days. In winter, cement hydration reaction is slow, initial setting time is prolonged, and masonry is not suitable for watering and curing. Instead, insulation and compression measures such as covering with burlap bags, straw bales, straw curtains, plastic film, and boiler heating are adopted.
After reading the above content, if you have any other questions about hydraulic slope protection brick products, please feel free to contact us. We look forward to working with you.