Does anyone know the construction technology of colored concrete pavement?

You mean colored pervious concrete, right? Construction technology of colored pervious concrete;

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

B distribution: when laying permeable concrete, the reserved height should be considered. 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 paving the plain permeable concrete, level it with a scraper and vibrate it with a flat vibrator. After vibrating, spread 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 the compacted pavement should be decorated in time, and the missing parts should be filled and trimmed. For a longer part, you can spray a layer of water evenly first, and then add materials for finishing.

E. When the permeable concrete is exposed, after the surface is smooth and the compactness meets the requirements, evenly spray cleaning agent on the surface, and then cover it with plastic film; 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, and the maintenance period is the same as that of ordinary concrete. During the maintenance period, fences should be set around the road surface, and it is forbidden to get on the bus.