What do we need to pay attention to when laying ecological permeable bricks? It is necessary to create a small car distance and parking lot, pedestrian distance and square pavement, and plan a special distance for school buses. This separation and creation not only meets the demand, but also greatly reduces the cost. Next, the editor of Guangzhou Wanxin Pipe Industry Co., Ltd. will tell you what we need to pay attention to when laying ecological permeable bricks?
1. Excavation of subgrade: According to the requirements of the plan, excavate the roadbed and arrange the earthwork to achieve the planned elevation; check the longitudinal slope, transverse slope and sidelines to see if they meet the requirements of the plan; repair and compact the subgrade and leveling rollers For compaction, the compaction coefficient should be above 95%. Pay attention to the buried pipelines during construction.
2. Laying of cushion: Lay 60mm thick sand.
3. Laying of the bottom layer: When laying compacted graded crushed stone (particle size 5-60mm) 200mm thick, the compaction coefficient must be above 93%.
4.Laying of the screed layer: In order to ensure the smoothness of the permeable brick of the surface layer, on the bottom layer, a 30mm screed layer (gradation with a particle size of 0.3 to 5mm) is used to spread the data on the bottom layer. , Then use a trowel to hit and smooth.
5. Surface layer laying: The surface layer is permeable brick. When laying, the permeable brick is laid according to the planned image. When laying bricks, you should lay them quietly and hit them securely with a rubber hammer, but the edges and corners of the bricks must not be damaged. The laid permeable bricks should be checked for stability and the surface layer should be flat, and any moving parts should be repaired immediately. The curing period after the permeable bricks are laid shall not be less than 3 days. The quality of sand for joints shall conform to the inspection procedures.
Compared with other pavement constructions, colleges and universities have their dense cultural heritage and are a special ecological environment. The construction of pavement must be reconsidered. And the school has no large trucks at all, most of which are teachers' private cars and school buses, so the school's pavement construction has its special characteristics in terms of pavement strength.