Construction environment of different floor materials
Release Time:
2020-09-04 11:45
There are many types of floor materials, commonly used epoxy, wear-resistant aggregate, penetration strengthening. Different floor materials have different construction technology, but also have different construction environment requirements. Not in a certain temperature, humidity construction, will cause the floor engineering hidden dangers.
What are the specific requirements? below by for you to introduce:
1. the environmental requirements of epoxy flooring materials.
The practicality, durability and economy of epoxy floor construction determine the quality of epoxy floor. Of course, practicality also includes the choice of floor materials, whether the product is supporting, floor design, etc., because different industrial environment on the floor requirements are not the same, some requirements of the floor wear-resistant pressure, some requirements of the floor clean, so the practicality of the floor is a very important aspect. The durability of the floor mainly lies in the quality of the material and the construction technology. Epoxy flooring materials are universal, but the raw materials used by different manufacturers are not the same, the construction process is not the same, the change will cause the epoxy floor to appear different surface effects. Epoxy floor construction is also a great impact on its quality, to ensure the quality of construction must have a professional construction personnel, construction tools and site management. On the floor construction technicians, to have the ability to distinguish material properties and the use of technology, but also need to have a certain amount of construction experience, because the construction site is often accompanied by emergencies, experienced construction personnel can make a judgment in accordance with the situation.
1. The influence of temperature on floor construction:
(1), the temperature is too low. Many two-component coatings are difficult to carry out curing reaction in an environment with a temperature lower than 5 ℃, or the reaction is very slow, which will seriously affect its curing performance. For example, the coating film dries very slowly, dust and other debris It is easy to pollute the surface and cause the decorative effect to deteriorate; curing too slowly will affect the performance of the coating film, reducing its hardness and wear resistance, which directly affects the service life of the floor.
(2), the temperature is too high. It will lead to an increase in the consistency of the paint, dry and scrapped, and in serious cases, there will be explosive aggregation. In general, we use a small number of times with the method of paint, or choose a high boiling point, volatile slow diluent adjustment.
2. The influence of humidity on floor construction
The humidity referred to here is the content of water vapor in the air at a certain temperature. Generally, when the humidity exceeds 85%, construction cannot be carried out, because the humidity is too high, it is easy to cause whitening, cracking and other coating defects. The humidity indication affects the floor coating only when it is too large, but its influence is often greater than people's imagination. If the humidity is too high, it will cause condensation on the coating surface, and the condensed water will cause the curing agent to cause the film to turn white and lose light.
Environmental requirements for 2. wear-resistant flooring materials
1. Requirements for concrete
(1) The strength reaches above C25 (at least above C20).
(2), water cement ratio is not higher than 0.4.
(3) The slump of concrete mixed on site shall not be greater than 125px, and the slump of pumped concrete shall not be greater than 300px.
(4), for the second pouring of concrete floor, the surface thickness should not be less than 125px.
(5) In order to achieve better results, it is recommended to add steel mesh in the concrete (steel diameter should be ≥ φ16).
2. Precautions for concrete pouring
(1) Pouring shall be carried out in sequence by bins to avoid unbalance of concrete setting.
(2), in order to ensure that the concrete has sufficient fluidity, retarding, can be appropriate to add retarding water reducing agent.
(3), it is recommended that one-time pouring to the design elevation, such as not laying waterproof film, you need to sprinkle water to make the foundation in a wet state.
(4), the need for concrete vibration, especially at the corners of the parts.
(5) If bleeding occurs on the surface, it is necessary to remove the bleeding.
(6), the initial leveling work as smooth as possible, in order to facilitate the final completion of the surface to reach a height difference of less than 3mm/2M.
3. Construction steps
(1), the removal of laitance: concrete surface laitance, should use mechanical grinding plate to destroy the laitance.
(2), trowel operation: in the initial setting of concrete surface with mechanical grinding disc to do 2-3 times trowel.
(3) Surface light collection operation: In the subsequent operation, mechanical paddle light collection operation shall be carried out for at least 3 to 4 times depending on the hardening of concrete.
(4), maintenance work: completely light the ground, 12 hours should take conservation measures. The curing method can adopt curing agent curing, sprinkling curing or plastic film curing.
(5), cutting expansion joints: in order to avoid cracking of concrete due to thermal expansion and contraction, should be timely sawing expansion joints. Generally every 6-12 meters, can also be combined with the site column position sawing.
Environmental requirements for 3. permeable flooring materials
What is the concrete seal curing agent?
Penetration into the concrete inside the compound and has been set in the concrete contained in the semi-hydrated cement, free calcium, silicon oxide and other substances through a series of complex chemical reactions, resulting in hard material, these compounds will eventually make the concrete surface of the density increase, so as to improve the strength of the concrete surface, hardness, wear resistance, impermeability and other indicators. How to play a role?
The final product of the complex chemical reaction will block the structural pores of the solid-sealed concrete, the improvement of strength will bring about the improvement of surface hardness, and the improvement of compactness will bring about the improvement of impermeability. Reduce the path of water flow, that is, reduce the intrusion of harmful substances, thereby greatly enhancing the resistance of concrete to chemical substances. So the concrete surface seal curing agent can bring long-term sealing, strong, wear-resistant, dust-free concrete surface.
Concrete seal curing agent requirements for the environment:
Concrete seal curing agent in the construction requirements of the relative humidity of the air is less than 80%. Because the concrete seal curing agent is water-based coating, if the air humidity is too large, the concrete water content is too high, the concrete seal curing agent will always be soluble in water, and can not with the concrete internal inorganic compounds and calcium oxide reaction, which can not be secondary reaction with the product.
Guangzhou Zhiye Chemical Co., Ltd. has been focusing on floor paint for 23 years. As a professional floor paint manufacturer established in the early stage of China, Zhiye has taken the lead in passing ISO management in the industry. It has always insisted on creating the greatest value for customers with continuous innovation, specializing in R & D, production, sales and application services of high-quality epoxy resin floor.
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Guangzhou Zeal Chemical Co., LTD
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