Second, the leveling layer must be made of fine stone concrete with a thickness of not less than 50mm( 1). Because the construction of wear-resistant materials and the pouring of cement floor are carried out almost at the same time, in order to ensure the construction quality and progress of wear-resistant layer, the cooperation of mixed pouring should be done well;
(2) For the formwork, it shall be flat and firm, the formwork shall be 6m, and the release agent shall be coated. The elevation of the formwork shall be detected at any time with a level meter, and the deviation shall be adjusted in time;
(3) The concrete strength is not less than C25, and the water-cement ratio is as small as possible;
(4) Use plug-in vibrator and plate vibrator to operate, use a level gauge to detect the level of the template after vibrating, and adjust the deviation parts;
⑤ Press repeatedly with a heavy long steel roller (the steel roller is wider than the formwork) to keep the steel formwork clean and make the ground smooth. If the steel roller cannot be used, it should be scraped flat with a scraper.
⑥ For the parts with severe bleeding, rubber tube should be used to eliminate bleeding;
⑦ It is best to wait until the wear-resistant surface is finished the next day, and the expansion joint will be cut by the building on the third day;
⑧ During Party B's construction, cross construction is not arranged, and Party A is responsible for protecting and maintaining the constructed ground of the other party, and Party A provides water and electricity;
Requirements of products on cement base surface
The cement base surface shall be firm and firm, and it shall not be shelled to prevent mortar from shelling. The concrete layer is best poured together with the mortar leveling layer. If the concrete layer is compacted first, the thickness of mortar layer should be not less than 4cm, and the forklift lane should be thicker.
2. It is required that the surface has no sand, good hardness and no cement pulverization. Requirement a, high quality cement. B, the new cement mortar layer should be fully maintained.
3. The cement base is smooth, without uneven honeycomb pits and cement bumps.
4. The flatness of the ground is required to be no greater than the thickness required by the paint (leveled with 3m feet);
5. The surface is dry, the water content is less than 6, and the ground is kept dry without oil pollution. Please remember that the cement floor should not be washed or mopped with water five days before entering the site after the maintenance period. First, the mechanical performance requirements.
Mainly in the following three aspects:
1. Wear resistance: Which vehicles will walk when the floor is used?
2. Compression resistance: How much load will the floor bear when it is used?
3. Impact resistance: Will the impact force cause the floor surface to peel off?
Second, the chemical performance requirements
Mainly consider the following two aspects:
1. Acid and alkali resistance: type and concentration of corrosive chemicals used.
2. Solvent resistance: the type of solvent used and the contact time.
Third, the floor location.
According to whether the floor is underground or on the ground, do you need moisture-proof treatment or choose a special moisture-proof floor?
Fourth, the base surface condition
1. Base strength: compressive strength ≥20Mpa is generally required.
2. Smoothness: Is it necessary to repair with epoxy mortar?
Aesthetic requirements of verbs (abbreviation of verb)
1. color requirements: is it necessary to divide the area by color?
2. Brightness requirements: choose matte or bright color?
3. flatness requirements: is there any requirement for the flatness of the floor?
Safety requirements for intransitive verbs
If the floor is in an oily environment or on a ramp, you need to choose a non-slip floor. 1. Environmental protection requirements for epoxy floor paint construction: a. Moisture content of base surface: non-aqueous epoxy floor cannot be constructed when it is above 6%; B, air humidity: more than 85%, should stop construction; C, construction temperature: below 5℃, special formula should be selected.
2. Maintenance of epoxy floor paint: epoxy floor paint is a high-value, high-quality and demanding product, which needs careful maintenance. Proper use can keep the floor as new and prolong its service life. These measures are as follows:
(1) Anyone who enters the workshop needs to change shoes (to avoid scratching the ground when entering the workshop with mud and sand);
② All hardware must be wrapped in soft plastic or rubber to avoid scratching the ground during use;
(3) when dragging the tray, the tray should be completely off the ground. When turning, pay special attention to the tray angle not to scratch the ground;
(4) When cleaning the floor, you need to use a soft mop or a wet and dry vacuum cleaner, and then clean it with water or detergent, but pay attention to the slippery floor;
⑤ If it is worn or scratched due to long-term use, it can be repaired locally in a small area. If the area is large, it is recommended to roll coating or trowel coating again.
Design performance consideration of floor paint
A, use performance requirements:
(1), wear resistance consideration
(3) Consideration of impact resistance
(4) Consideration of hardness performance
(5), adhesion performance considerations
(6), dustproof performance requirements
(7), clean performance requirements
(8), anti-static performance requirements
Second, the appearance requirements:
(1), color requirements-what hue and whether color separation is needed.
Three, building foundation and environmental requirements:
(1), the ground or underground warehouse on the first floor should be designed to be waterproof and moistureproof.
(2) The concrete strength is more than or equal to ≥C25, and the C30 standard has better effect.
(3) The surface smoothness of foundation concrete is 2m by feet ≤3mm.
Performance decomposition of epoxy floor paint
1. Scope of application: used on the cement or terrazzo floor of general electrical appliances, electronics, machinery, food, medicine, clothing, stationery, printing and dyeing, textiles, hardware, furniture, printing and packaging, plastics and other manufacturing factories. It can also be used in schools, libraries, indoor parking lots, cable exhibition halls and other places.
Second, the performance characteristics:
(1), dustproof, wear-resistant, compressive and waterproof.
(2), can do matte, bright, semi-matte and anti-slip effects.
(3) Low cost, easy cleaning and convenient maintenance.
III. Reference of coating thickness and service life:
The service life is about 6 years.
Four. List of technical parameters: epoxy anticorrosive topcoat (WD- 156)
1, function
A two-component epoxy anticorrosive floor coating is composed of special epoxy resin as main agent, modified alicyclic curing agent as main film-forming substance, advanced pigment, solvent and surfactant. It is used in places that require drug resistance, beauty and non-overloading. It has the characteristics of bright dust-proof, mildew-proof, anti-corrosion, impermeability, wear resistance and easy cleaning, and has strong adhesion to cement surface, no cracking and no chipping.
2. Main features
2. 1, hard paint film;
2, 2, excellent drying performance;
2, 3, high adhesion, good three-proof performance and good wear resistance.
Step 3 use
Epoxy anti-corrosion topcoat is widely used for steel structure anti-corrosion topcoat in various acid, alkali and salt environments, as well as anti-corrosion, dust-proof, mildew-proof and bacteria-proof for various floors, such as GMP pharmaceutical factory, electronics factory, food processing factory, textile factory, paper mill, hospital operating room and laboratory.
4. Main technical indicators of paint film: various colors; The paint film is smooth and flat. Adhesion (1mm) grade: ≤ 1 viscosity (25 c): 400 200 CPS impact resistance KGNan: ≥ 70 drying time h: surface drying ≤4h, hard work ≤24h alkali resistance, 30%NaOH, 48h: good pencil hardness ≥2H acid resistance. 48h: good wear resistance, 500g, 1000r, g: ≤ 0.2 ratio: main agent: hardener = 4: 1 bending test: ≤ 1mm water resistance for 30 days: no foaming.