The time should avoid the time when the atmosphere and ground humidity are high in the morning.
The individual high places of the base course shall be leveled first, and the individual low places shall be filled with glue.
Even on a sunny normal working day, it is generally recommended to officially lay it after 9 a.m.
Where the compactness of the base course is not enough, the method of drilling with a drill and pouring glue can be used for reinforcement.
Selection of laying time: when laying polyurethane rubber surface, we must master the weather conditions and take emergency measures to prevent sudden showers.
The actual paving thickness of the polyurethane mortar adhesive surface is from the rubber bottom to the center of the surface rubber particles.
Since the polyurethane mortar is impermeable, ponding will certainly occur after rain.
Wet with rain proof water and low temperature will affect the curing effect of the plastic surface itself and the service life of the overall floor.
For construction in places where conditions permit, it should also be noted that construction should not be carried out in high temperature, wind and rain.
Ensure the slope at the corners.
The waterproof performance of polyurethane mortar itself should also be very important.
The thickness dimension can be pre checked by formwork erection, and the parts higher than the base course can be trimmed or hammered for tamping.
In order to ensure the flatness and slope, after the formwork is nailed, simulate and correct with a level.
RECOMM.
Ensure that the water is discharged in time at the corners of the slope, so as to prolong the service life of the floor.
When there is frost and fog in the morning, construction should be carried out after the sun comes out and the base course is dry.
Polyurethane mortar construction measures: ensure a certain floor thickness to prevent shelling and delamination after being soaked in the rainy season.
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Prevent local foaming and shelling of polyurethane mortar adhesive surface after paving, and strictly control the compactness of the base course to prevent the asphalt foundation layer from being embedded and squeezed, shelling and delamination, resulting in poor adhesion, surface gasification and rubber surface breaking.
The uncertainty of the environment adds a lot of difficulties to the construction, especially the polyurethane plastic surface does not have the function of water seepage, so waterproof measures must be taken to avoid water during construction.
Polyurethane mortar shall be arranged in the whole construction period of the project, and the local construction in rainy season and winter shall be avoided.
