There are several types of underground garage ground practices . The problems that existed in the past in concrete placement are particularly prominent in underground garage floors. These problems directly affect the quality of concrete and increase the difficulty and cost of construction for the following epoxy floor. In the past ground design of industrial floors and underground garages are commonly used: concrete floors, cement mortar floors, epoxy floors, wear-resistant floors, terrazzo floors, etc. There are different degrees of dusting, sanding, and shedding, which affects the normal use of the ground. The main reasons for these problems are: the construction quality and the service life of the product itself. Here's a comparison of our ground performances for several major underground garages . We hope to help you!
What are the ground floor garage practices?
First, epoxy floor
Epoxy floor technology refers to the application of an epoxy resin coating on a solidified concrete screed with a coating thickness of about 1-5 mm to form a closed organic protective layer. Since the epoxy resin is an organic material, this protective layer has good chemical resistance such as water resistance, oil resistance, acid and alkali resistance, salt spray corrosion resistance, etc., and it is flat, seamless, easy to clean, and easy to maintain. It is a modern industry. The long-lasting floor materials used for this purpose are widely used in medicine, food (sterile production) and electronics, chemical (anti-static) and other industries. However, the organic layer has several fatal weaknesses:
1, hardness and wear resistance: organic materials in physical properties can not be comparable with inorganic materials, the most hard resin Mohs hardness of 2-3. Due to heavy moving loads and frequent use of vehicles, forklifts, mobile carts, etc. in the production workshops, parking garages, and manufacturing industries, epoxy resin floors are often severely scratched, causing shelling and shedding. phenomenon.
2, the service life: organic materials are high polymer, which means that in the radiation, light, temperature and other normal conditions, the polymer chain will break, this is what people often say aging! The best epoxy material (Epoxy self-leveling) life of up to 5-8 years, the general industrial epoxy floor life is about 3 years.
Second, wear floor
Hard floor technology refers to the incorporation of emery or other aggregates in the process of casting cement or concrete, and the overall solidification. Hardened layer thickness is about 3-10mm. Due to the extremely high hardness of corundum and other aggregates, the Mohs hardness of the hard floor is 6-7. There is basically nothing in the common material that can scratch the surface, so the hard floor is hard, wear-resistant, flat and seamless. In addition to being used as a floor of industrial plants, it can also be used as a ground for auxiliary facilities such as warehouses, garages, and plazas. However, the ground generated by this technique is cement bonded with cement, so it also has the characteristics of cement products - the surface will inevitably form a lot of capillary pores left after evaporation of water, these pores to the ground The effect has two negative effects:
1, diffuse reflection of light, so that greatly reduced gloss, if you do not wax conservation, there is no good visual effects.
2. The absorption of sewage and dust is not conducive to creating a clean production environment and is not suitable for applications in the pharmaceutical and other industries.
3. With the passage of time, the appearance of weathering on the surface of cement products, dusting, sanding, the general life of 5-8 years, short 2-3 years.
Third, terrazzo floor
Terrazzo is a kind of cement artificial stone, which has the advantages of low price, good overall performance, controllable shape and color, etc. Therefore, it is widely used as a ground material for public buildings, production workshops and the like. However, due to wear and stain infiltration and other reasons, the surface is quickly weathered, peeled off, contaminated, and lost due to architectural features. The main means of maintaining the terrazzo floor is daily cleaning and waxing, which is complicated and costly. As a result, the surface of the terrazzo is rough and old, making the terrazzo only available as a low-end product. This is obviously a hidden danger for creating a clean working environment.
Fourth, concrete seal hardener hard floor
Concrete seal curing agent is an environment-friendly chemical building material, which can make up for the defects of the cement product floor. It is applied to the concrete floor, concrete floor and terrazzo floor to form a 7-8mm protective layer on the surface with a service life of more than 30 years.
Concrete seal hardeners have the following characteristics:
1, high brightness: up to 90 degrees gloss units, more than epoxy resin, equivalent to marble.
2, high hardness: Mohs hardness of 8-9 (Diamond Mohs hardness of 10).
3, anti-infiltration: water resistant oil, weak acid and alkali resistance, and flat seamless, easy to clean, easy maintenance.
4. Long life: The service life reaches 30 years and provides 20 years of quality assurance. This guarantee is beyond the reach of other floors.
5, a wide range: for the renovation of the old ground, which is incomparable with the epoxy floor and wear-resistant floor.
Anti-skid floor surface treatment
1, concrete floor. The concrete floor has high strength and durability, but the surface is prone to phenomena such as efflorescence and excessive water absorption. These are the key factors that affect the quality of the floor. Therefore, it is recommended that there should be sufficient dryness on the concrete floor construction floor. The time is generally 28 days or more, and the moisture content of the concrete base cannot exceed 6%. The strength of the concrete base must reach C25 or above, and the leveling gap on the ground cannot exceed 3mm.
2, stone ground. Tiles, granite, marble, terrazzo, etc. are all called stone floors. In order to improve the adhesion between the ground and the paint, it is recommended to fully polish before construction to increase the surface roughness. In order to increase the useful life of the ground, we generally perform waxing maintenance. However, floor waxes will affect the construction of floors. Therefore, floor waxes must be cleaned before construction. And in the construction of the money to the ground seams, depressions with putty to fill flat.
3, the old ground. The old ground that has been used should be repaired if damaged. If the damaged area is large, it is advisable to clear the old ground and re-build the floor.
Problems in the construction of underground garages
The water accumulation in the grassroots has not been thoroughly cleaned before pouring, causing local concrete moisture content to be too high. Although vibrating and flattening are performed according to the elevation standard, after the initial setting, the water content is too high. , uneven, affect the overall visual effect of epoxy floor!
When the concrete is poured, it is not according to a certain direction, and it is poured in separate positions and skips. When the ground floor of the underground garage was subsequently poured, it failed to select an appropriate joint location. After the last pouring, it could not be scored, cut or removed to ensure the cracking rules of the wear-resistant floor.
After the concrete is poured, it is simply leveled with a scraper (the artificial scraper is used to trample the pollution to form waves and thus reduce the flatness of the concrete), and is not leveled with a roller or a plane vibrator.
Editor's summary: The above is an introduction to the construction practices of the underground garage, which types of garage ramps have a non-slip ramp surface, and hope to help those who have this need! For more information, please continue to follow our website, follow-up will show more exciting content. You can also purchase more of your favorite products on Qijia Mall!
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