Brief introduction of construction technology of planting grass brick
Brief introduction of plant grass brick
Plant grass bricks are made of high-quality materials and pressed by high-pressure brick presses such as concrete, river sand and pigments, which are completely free and meet the requirements of environmental protection production scientific system. Straw bricks have strong compression resistance, good stability when laid on the ground, wide green area, and can withstand the pressure of pedestrians, and vehicles are not damaged, while green grass roots grow under the grass and will not destroy the grass roots. Therefore, the grass bricks of Jianji Cement Products Factory have been widely used. Many towns also use grass such as Guangzhou and Changsha to grow grass. Wuhan and so on, so grass-roots brick has also been recognized in some aspects, it can not only facilitate people to travel, but also increase the green area of the city, thus improving the air.
Bricklaying steps
1。 roadway excavation
(1) According to the pre-design, excavate subgrade and clean earthwork.
(2) Check whether the longitudinal slope, transverse slope and sideline meet the design requirements.
(3) Repair subgrade, level and compact, and the compaction coefficient should reach more than 95%.
(4) Pay special attention to underground pipelines.
2。 Base course laying
Pave 150~ 180mm graded sand, and compact it with a flat roller.
3。 Surface paving
The surface layer is paving brick, which should be laid flat gently and stabilized with a rubber hammer. Then fill the brick hole with nutrient soil, and then plant grass. Planting grass is divided into two steps: first fill the soil, first sprinkle water on the soil to stabilize it, then sprinkle grass seeds, and finally sprinkle some soil to make the foundation soil the same as the top surface of the lawn grid (the quality requirements meet the requirements of interlocking pavement construction and acceptance procedures CJJ79-98).
Grass material
1。 When laying the supporting layer, special attention should be paid to ensuring sufficient water permeability, but the most important thing is firmness.
2。 The pressure and thickness of the support layer are determined by the material (car, pedestrian, etc.). The one that exerts pressure, such as carrying a car with a thickness of 30cm.
3。 Before laying the lawn, a layer of sand and sand mixture with a thickness of 2-3 cm must be laid on the supporting layer.
4。 All lawns should be completely spliced and cannot be confused.
5。 It's best to stagger the bottoms of lawn lattices so that they can be well fixed on the foundation.
6。 In order to avoid possible thermal expansion of lawn grids, keep a gap of 1- 1.5 cm between each lawn grid.
7。 During the germination of grass seeds, it is best to water them frequently and don't drive on the new lawn for the time being. When the turf is fully grown, the area can be put into use.
8。 Take care of the lawn pavement, mow the grass and fertilize it when necessary, so that you can have a beautiful planting environment for a long time.
The introduction of planting bricks introduces the construction process of planting grass bricks in detail.
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