Precautions for plastic runway, construction method of plastic runway?

Precautions for cleaning, maintenance and use of plastic flooring.

Plastic flooring with its good sports performance, safety and environmental protection completely green pollution-free, won the favor of customers, so in the use of plastic flooring process, how to do a good job of scientific cleaning and maintenance? Guanaotong people with 13 years of professional construction experience are summarized as follows, cleaning and maintenance].

1. Most sports floors have a field line (drawn on the surface or pasted on the surface) and special maintenance of the field line is necessary during floor maintenance. A doormat should be placed at the entrance of a large number of places.

2. Regular maintenance will keep the surface of the floor as it is and prolong the service life of the floor. The floor must be cleaned daily with a mop or vacuum cleaner to remove dust from the surface, a small area can be cleaned manually, and a floor mopper can be cleaned for a medium area or more.

3. Do not use cleaning instruments that will bring wear and tear to the floor, and wash with clean water after cleaning with neutral detergents, and use a suction machine to dry the floor, or wipe the floor dry with a mop. This prevents dirt from settling down. Footprints and stains should be removed immediately with proper cleaning methods.

It is strictly forbidden to wear leather shoes, high heels or sneakers with easy color to appear.

It is strictly forbidden to cut and squeeze, and the surface should not be rubbed with hard objects to avoid damage or cracking.

It is strictly forbidden to use acid, alkali and other corrosive chemicals on the floor and keep it away from fire sources and high temperatures, so as to avoid deformation of the floor.

Plastic runway construction requirements:

Seams: The seams are smooth and beautiful. The trimming personnel check the thickness and flatness at any time.

Ingredients: Strictly implement the process formula issued by the company's technical department, and the ratio is accurate.

Trimming: The edge part is trimmed by the designated technician. When connecting the hard edge, it should be adjusted according to the slope, and when connecting the soft and hard edge, the hard edge should be cleaned and polished to ensure the firmness of the bonding. (1) Surface treatment of the base layer.

a. Removal of moisture.

The moisture content of concrete should be less than 5%, otherwise it should be removed before painting. There are several ways to remove moisture:

Ventilation: Strengthen air circulation, accelerate air flow, take away moisture, and promote further volatilization of moisture in concrete.

Heating: Raise the temperature of the cement concrete and its surrounding air, accelerate the rate of water migration to the surface layer in the cement concrete, and make it evaporate rapidly. Forced air heating and radiant heating should be used.

b. For the alkali return ground with a pH value greater than 8, treat it with pickling

Pickling method (suitable for the ground with more oil stains): clean the surface of cement concrete with hydrochloric acid with a mass fraction of 10 15%, and then rinse with clean water after the reaction is complete, and brush with a brush, this method can remove the mud layer and obtain a finer roughness.

c. Adopt mechanical methods for large areas with poor flatness or too smooth foundation surface: use sandblasting or electric grinders to remove surface protrusions, loosen particles, destroy capillaries, increase the adhesion area, and use a vacuum cleaner to remove sand, impurities, and dust. For the ground with more depressions and potholes, plastic and fine rubber particles should be configured into glue or putty to fill and repair.

1. The printed anti-skid plastic runway first needs to be waterproof for the cement foundation or the asphalt foundation for backing. After 24 hours of maintenance of the base layer, the bottom layer of the runway can be paved, and the plastic substrate is mixed with 25% of the high elasticity black rubber particles with a particle size of 3-4mm according to the national standard, stirred evenly and poured into the ground, scraped and raked and scraped flat, laid with a thickness of 10mm, and cured for 24 hours. Pour the thick printing runway surface material into the whole field, scrape the rake and scrape it flat, cover the material with a printing mold, and lift the printing mold after 24 hours, you can see the 2-3mm thick printing surface layer.

Special pattern design, wear-resistant and anti-slip, one-piece surface layer, uniform thickness, no particles, no bubbling, anti-aging, bright color, best paving on the basis of asphalt.

2. The mixed granular plastic runway first needs to be waterproof for the cement foundation or sealed for the asphalt foundation. After 24 hours of maintenance of the base layer, the bottom layer of the runway can be paved, and the runway substrate is mixed with 25% of the high elasticity black rubber particles with a particle size of 3-4mm according to the national standard, stirred evenly and poured into the ground, scraped and raked, laid with a thickness of 9mm, and cured and maintained for 24 hours. Pour 2mm thick runway surface material into the whole field, scrape and rake and scrape flat, evenly sprinkle 3-5mm EPDM anti-slip particles on the whole field, clean off the unstuck EPDM particles after 24 hours, and then roll or spray a layer of runway special topcoat.

Super nail resistance, suitable for all kinds of competition venues, easy maintenance, economical, can absorb strong impact, aging resistance, bright colors. Paving is best on asphalt foundations.

3. The composite granular plastic runway checks the basic flatness, and the flatness should be measured within 3mm with a 3m ruler, and the whole field should be flat. The particle size of 3-4mm high elasticity black rubber particles mixed with high-strength one-component glue, stirred evenly poured into the paver, laying thickness of 9mm, curing and maintenance for 24 hours. Use PU glue mixed with 30% black rubber powder or talcum powder to cover the bottom of the black rubber particles, maintain the bottom for 24 hours, pour 2mm thick runway surface material into the whole field, scrape and rake and scrape flat, evenly sprinkle 3-5mm EPDM anti-skid particles on the whole site, clean off the unstuck EPDM particles after 24 hours, and then roll or spray a layer of runway special topcoat.

Anti-ultraviolet rays, effectively avoid sports injuries, with a strong elastic layer and cushioning layer, can resist the wear of spikes, moderate softness and hardness, and good wear resistance. Paving on reinforced concrete foundations is best.

I found it on the Chinese sports facilities network, there are a lot of them, and only some of them are put in.

The plastic track, also known as the all-weather sports track, is composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or PU particles, pigments, additives, and fillers. The plastic track has the characteristics of good flatness, high compressive strength, appropriate hardness and elasticity, and stable physical properties, which is conducive to the speed and skill of athletes, effectively improving sports performance, and reducing the rate of fall injuries. The plastic runway is composed of polyurethane rubber and other materials, which has a certain elasticity and color, has a certain ultraviolet resistance and aging resistance, and is internationally recognized as the best all-weather outdoor sports floor material.

Scope of application: It is used in kindergartens at all levels and all kinds of schools and professional stadiums, track and field tracks, semi-circular areas, auxiliary areas, national fitness paths, indoor gymnasium training tracks, playground road paving, etc.

Characteristics of plastic runway:

All-weather use: any season and temperature difference, can maintain a high level of quality, and can be used immediately after rain, increase the use time, improve the use rate of the site.

Elasticity: It has moderate elasticity and strength, which can reduce physical consumption and improve competition performance.

Impact absorption: Moderately absorb the impact of the feet, reduce sports injuries, and are suitable for long-term practice and competition.

Weather resistance: It will not fade, chalk or soften due to pollution from ultraviolet rays, ozone and acid rain, and can maintain its vivid color for a long time.

Abrasion resistance: The abrasion resistance is less than that of schools at all levels for a long time and high frequency of use.

Compression resistance: It will not be unable to regain elasticity due to the weight of track and field equipment.

Spike resistance: At the 100-meter starting point where the maximum force is used and used most frequently, it will not be damaged by spikes or starting frame.

Impact resistance: It has a strong elastic layer and cushioning layer, which can absorb strong impact and will not damage the surface.

Flatness: Self-leveling materials are used during construction, and the surface is flat, which can meet the requirements of a particularly flat playing field.

Adhesion: special construction treatment, strong adhesion, can suppress the rise of moisture, no blistering, peeling and other phenomena.

Safety: Prevents sports injuries from falls.

Economical: easy to maintain, save management costs.

Color: Special high elasticity EPDM and PU particles (commonly known as polyurethane particles), soft surface color, granular surface, to prevent the reflection of dazzling eyerays, beautiful and durable, and can use multi-color collocation, polymerization of hydrogen elements and vulcanization process does not produce harmful substances, so it is an environmentally friendly product.

Attention should be paid to the construction of plastic runway:

1. Before construction, the asphalt concrete foundation must be quality accepted, and the acceptance criteria are carried out according to the design standards and technical specifications. The ambient temperature of on-site laying should be controlled at 5 38, avoid the ambient temperature below 5, above 38, the relative humidity should be controlled below 70%, the foundation should be flat and clean, and the catalyst dosage should be adjusted according to the temperature and relative humidity to control the curing speed appropriately. When the colorant and prepolymer are stored, the lid of the barrel should be tightened, the moisture should be tested before use, and the moisture in the foundation should be controlled after passing the test, so as to avoid bubbles after gelatinization.

When the plastic pavement material leaves the factory, the quality inspection certificate and the validity period must be carefully checked.

2. Nailing of the mold strip: Nail the wooden mold strip wrapped with polyethylene film along the drawn bottom line according to the pre-arranged area. The mold strip should be flat and implemented with the foundation nail to prevent leakage.

3. Bottom line of surveying and drawing: In order to reasonably arrange the daily pavement workload, it is necessary to draw the dividing line according to the set plan on the basis, divide the entire track and field field into strips, and then pave them according to the strips. In order to ensure the requirements of smooth drainage and few joints, the construction procedure of the inner ring first and then the outer ring is adopted.

4. Preparation of finished products: Calculate the required semi-finished products according to the pavement area, hoist the required slurry and prepolymer on the operating table respectively, and discharge them neatly according to the batch number. Place the desired black rubber pellets and catalyst in the appropriate position on the worktop.

5. After the completion of the laying of the plastic runway, it can be used normally only after 7 to 10 days of maintenance.

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1) In the construction process of polyurethane plastic materials, the most afraid of water, the glue will produce a large bubble when it encounters a drop of water before the initial curing, so the construction personnel should prepare a towel to wipe the sweat under high temperature conditions. When laying the rubber surface, you must grasp the weather conditions and take emergency measures to prevent sudden showers. Rubber laying time to avoid the morning atmosphere and the ground humidity is high, even in the weather on a normal working day, it is generally best after nine o'clock in the morning formal laying, plastic runway laying.

2) The solid thickness of the rubber surface refers to the center from the rubber bottom to the surface of the rubber particles, which is generally controlled from two aspects. First of all, the thickness and size are pre-checked through the vertical mold, and the local elevated place of the base layer is trimmed or hammered to be tamped. If the height is not much, you can use the flat scraper to add a fixture off the mold scraper to ensure the thickness, the 11th Asian Games in the northern suburbs of the competition field plastic runway main competition area to ensure the thickness, the error control is positive, so the average thickness is more than 14mm.

3) Construction experience of plastic runway without water accumulation after rain: a. In order to ensure flatness, the laying span is as large as possible, the span on the main runway is meters (three roads are paved at the same time), and the span of the non-competition area is greater than 4 meters. b. Generally, there must be local water accumulation after the rain in the north and south semicircles, especially in the semicircles of the high jump area.

In order to ensure the slope, it is best to use the "turtle back" construction method to facilitate drainage.

4) To prevent local blistering and shelling after the rubber surface is paved, the compactness of the base layer should be strictly controlled, so as to prevent the asphalt foundation layer from being embedded and extruded, shelling and delamination, resulting in poor adhesion, surface gasification, and the rubber surface being pulled off. Where the density of the base layer is not enough, it can be reinforced by drilling with a drill bit and filling rubber (rubber nails).

5) In order to ensure the flatness and slope, after the mold bar is nailed, the simulation correction is carried out with a level, and the individual high places of the base layer are leveled first, and the individual low places are filled with glue.

6) Resolutely dig out the basic parts that are polluted and corroded by diesel fuel and fill them with glue.

1. After the completion of the laying of the plastic runway, it needs to be used after 7 to 10 days.

2. The plastic runway is suitable for all-weather use under the condition of affirming drainage equipment. The plastic track is used for sports exercises, competitions and students' stationary and fitness training, and is not suitable for other purposes;

3. Prevent temporary load;

4. Prevent fireworks and isolate heat sources, prevent contact with organic solvents, chemicals, cigarette butts and other fires, purified substances, etc.

5. It should be cleaned with water spray frequently, and a large amount of residual water on the rubber surface can be removed with a dry cloth after cleaning. Oily stains can be scrubbed with 10% ammonia, detergent, or laundry detergent.

6. Prevent the purification of harmful materials, often maintain clean, prevent violent mechanical impact and friction, vehicles are not allowed to drive on the runway, pile heavy objects and sharp things, etc. (except for standard running shoes). Special spiked shoes must be worn for sports, and the length of the nails should not exceed 7 mm, and the length of jumping shoes should not exceed 11 mm. If the spike shoelace has long nails, it is not allowed to be used on the plastic runway;

After the primer construction is completed, the whole site is inspected and cleaned. (Please see the upper left corner)**Plastic runway materials, dozens of yuan per square meter can be constructed, nationwide package transportation and laying, fifteen years are available. Plastic runway construction process:

1) The technical leader, quality supervisor and technician lead 5 people to inspect and test the flatness, slope and thickness of the whole field, and make records.

2) Material personnel take inventory and account for materials.

3) The mechanical personnel inspect and maintain all the machinery to ensure the normal operation of the machinery.

4) The batching personnel clean up the batching site and prepare the materials required for the next process.

5) The electrician inspects all circuits to ensure smooth and safe.

6) The safety officer inspects all the hidden dangers on the site and removes the hidden dangers.

7) Other personnel keep the environment clean and tidy.

8) At the same time, prepare the materials used in the next process.

9) Trimming of the primer: spray with water, scrape or trim the place where the water accumulates with glue, and use an electric leveling machine to smooth the stubble part of each primer, and also trim the non-conforming requirements.

02. The construction of self-knotting closed-cell foaming slurry layer 2mm (A and B 1:4):

1. The slurry layer is two-component polyurethane (1:4) (excluding rubber particles and powder granules), with a thickness of about 2mm. After the substrate is laid to meet the requirements, a layer of self-knotting clear slurry is coated on the surface of the substrate (the treatment can make the surface of the substrate produce fine pores, so that the bond with the surface layer is more firm and form a whole) The batching process is carried out in strict accordance with the process specified by the company, and when the stirring is completed, it is added to the hopper.

2. Press the start button to adjust the handwheel of the transmission machine to adjust the flow rate of the material pump, and the speed is 100 150r min.

3. The technician and the quality supervisor inspect and order the next step to start the process after there is no quality problem in the whole site.

03. The construction of the self-knotted pattern slurry layer is 2mm (A and B 1:2).

The surface layer of two-component special batter is prepared according to the requirements of 1:2, and the surface layer is paved with special equipment, and the surface anti-slip and wear-resistant texture can be formed before the layer of all-polyester mortar is completely cured.