Construction technology of permeable concrete

Beijing Korean pine pervious concrete construction technology is as follows.

Base treatment: Clean the base surface without dust, branches, paper scraps and other sundries, and wet the base surface before paving.

b.

Distribution: The reserved height should be considered when laying permeable concrete. When spreading pervious concrete manually, the shovel shall be used to reverse the buckle, and throwing is strictly prohibited. When the paving time of permeable concrete exceeds 30 minutes or in windy weather, the site concrete should be covered with plastic sheets in time to prevent the water loss of permeable concrete from being too fast.

c.

Vibrating: After the permeable plain concrete is distributed, it shall be leveled with scraper and vibrated with plate vibrator. After the completion of vibrating, pave colored pervious concrete or colored exposed pervious concrete on the pavement, then level it, and replenish the missing parts in time. The surface shall be vibrated and leveled with special equipment for pervious concrete until it is as high as the formwork.

d.

Surface finishing: the corners of compacted pavement should be decorated in time, and the missing parts should be trimmed with filler. Large parts can be sprayed with a layer of water evenly first, and then trimmed with materials.

e.

When the permeable concrete is exposed, after the surface is smooth and the compactness meets the requirements, the cleaning agent is evenly sprayed on the surface, and then the plastic film is covered; 6-8 hours after spraying (depending on the weather), surface washing with high-pressure water gun. Pay attention when washing, the cleaning agent must be washed clean, but there can be no dripping.

F. Maintenance: After the permeable concrete surface is finished, a small amount of water should be sprayed in time and covered with plastic film for maintenance. The curing period is the same as that of ordinary concrete, and fences should be set around the pavement during the curing period. You can ask Beijing Jinshan Song Urban Landscape Engineering Co., Ltd. for details.