Epoxy mortar self-leveling construction
1. Overview. Epoxy mortar self-leveling is a high-quality floor material, which is widely used in clean rooms, dust-free workshops and other places in electronics, medicine, food and other industries. It has good wear resistance, pressure resistance, corrosion resistance, anti-slip, easy to clean and other characteristics, and at the same time can withstand the wear and tear of a large number of ** and heavy equipment. This article will introduce in detail the process flow, material selection, construction points and precautions of epoxy mortar self-leveling construction, so as to help readers better understand the construction method of this ground material.
2. Preparation for construction.
1.Ground base treatment: ensure that the ground is flat, dry, free of oil, floating dust and other impurities, if there are unevenness or cracks, should be filled or shoveled.
2.Material preparation: According to the ground area and construction requirements, prepare enough epoxy mortar self-leveling materials, as well as construction tools such as agitators, rollers, trowels, etc.
3.Construction environment: Ensure that the construction site is dust-free, water-free, pollution-free, and the temperature and humidity are appropriate to ensure the construction quality.
Third, the construction steps.
1.Interface agent coating: Coating the floor with a professional interface agent to enhance the adhesion between the mortar and the substrate. Apply evenly and without omission.
2.Bottom coat application: Mix epoxy resin and curing agent in proportion, add an appropriate amount of filler and additives and stir evenly, and then apply to the ground. The function of the base coating is to increase the adhesion between the mortar and the base surface and close the micropores of the base surface to prevent the mortar from penetrating into the base surface.
3.Topcoat application: After the base coat has cured, the topcoat is applied. Mix epoxy resin with hardener in proportion, add an appropriate amount of pigment and filler, stir well, and then apply to the base coat. The top coating directly affects the final surface effect, so it is necessary to ensure that the color is uniform and there is no color difference.
4.Mortar layer construction: After the epoxy resin mortar is stirred evenly, it is evenly applied to the top coating with a trowel. The role of the mortar layer is to provide sufficient compressive strength and wear resistance, which is a key link in the whole self-leveling construction. During the construction process, it is necessary to ensure that the thickness of the mortar layer is uniform, and there are no bubbles and hollowing.
5.Curing and curing: After the construction of the mortar layer is completed, it should be cured and cured. Keep the construction site dry, well ventilated and away from direct sunlight. During the curing period, the entry and exit of personnel should be restricted to avoid damage to the mortar layer. The curing time is generally more than 48 hours to ensure that the mortar layer is completely cured.
6.Finished product protection: During curing and curing, the finished mortar layer should be protected. Avoid heavy pressure, sharp object scratches, or chemical corrosion. If there is any damage, it should be repaired in time.
4. Precautions.
1.Material storage: Epoxy mortar self-leveling material should be stored in a dry, cool place, away from direct sunlight and high temperatures. The storage environment temperature should be between 5-30, and the relative humidity should not exceed 80%.
2.Material stirring: When stirring materials, curing agent and filler should be added in accordance with the specified proportion, and fully stirred evenly. The stirred material should be used as soon as possible to avoid hardening caused by prolonged storage.
3.Construction temperature: The appropriate temperature and humidity should be maintained during construction, the temperature should be between 5-30, and the relative humidity should not exceed 80%. Too high or too low a temperature can affect the curing of the material.
4.Worker protection: Construction personnel should wear masks, gloves and other protective equipment to avoid allergies and respiratory irritation caused by direct contact with materials.