What is the Sipu Stadium?
Sipu Stadium, a football field.
I. Professionalism:
The performance of upper hard and lower elastic is a professional structure designed for healthy exercise. One of the important purposes of venue construction is to provide professional, safe and healthy competitive conditions for sports, and hard-featured venues can bring professional sports texture; Elastic playground can effectively increase the sports buffer and reduce the damage of ground reaction to athletes' ankles, joints and ligaments; At the same time, it can effectively reduce sports accidents caused by falls and injuries during sports. Professional sports structure, hard with elasticity, elastic but not soft.
Second, environmental protection.
Implement the national standard for the limit of harmful substances in interior decoration materials: GB 1858 1.
1 is a one-component polyurethane modified by silicone, which absorbs water and cures without leaving harmful chemical components.
2. The surface layer is made of synthetic resin, water-based materials and recognized environmental protection materials.
Silicon PU has become an elastic court material for health professionals unanimously recognized by the market, which depends on fully considering the health and environmental protection performance of the material during research and development, taking the national limit of harmful substances in interior decoration materials as the inspection standard, and the elastic layer and reinforcement layer are one-component silicone modified polyurethane, which does not leave harmful chemical components after water absorption and curing; The surface layer is made of water-based materials, which is recognized as hygienic and environmentally friendly. After sampling inspection by the National Building Materials Testing Center, the complete set of silicone PU materials fully meets the national standard for the limit of harmful substances in interior decoration materials, and has passed the China environmental label product certification issued by the Certification Center of the Ministry of Environmental Protection, that is, the first-class mark of ten ring, and entered the government green procurement list.
Third, practicality.
More than 6,543,800 square meters of silicon PU site is being verified.
■ Excellent weather resistance
Silicon PU will not fade, harden and soften due to outdoor high and low temperature climate change, and can keep bright colors for a long time even under the conditions of strong ultraviolet rays, ozone, rain and temperature difference.
■ Super wear resistance
The original water-based surface layer of silicon PU can ensure the long-term stability of appearance and structural characteristics, and the wear resistance can meet the needs of long-term high-frequency use.
■ Excellent stain resistance
The surface of silicone PU is tough and dense, and it is not easy to be scratched by soles or other hard objects. Through simple cleaning, the stadium can be kept as clean as new for a long time.
What is the Sipu Stadium?
Information source: Baidu Encyclopedia, information provided: provided by Hu Mei Indoor Sports Floor Factory! Supply: badminton floor, table tennis floor, basketball floor, gym floor, kindergarten floor, brands: Shanghai and the United States.
I. Professionalism:
The performance of upper hard and lower elastic is a professional structure designed for healthy exercise. One of the important purposes of venue construction is to provide professional, safe and healthy competitive conditions for sports, and hard-featured venues can bring professional sports texture; Elastic playground can effectively increase the sports buffer and reduce the damage of ground reaction to athletes' ankles, joints and ligaments; At the same time, it can effectively reduce sports accidents caused by falls and injuries during sports. Professional sports structure, hard with elasticity, elastic but not soft.
Physical properties of silicone polyurethane
Unit index value of serial number inspection item
One-component multi-component
1 Shore hardness A55-85
2 tensile strength MPa≥2.0≥2.2
3 elongation at break %≥350
4 tear strength N/mm 12- 14
5. Flexibility at low temperature ≤-40℃
6 impermeability 0.3MPa30min impermeability
7 wet bond strength MPa0.5
Anti-aging performance: no cracking or deformation during heating aging.
Artificial climate aging
9 flame retardant performance grade B 1 flame retardant material
Second, environmental protection.
Implement the national standard for the limit of harmful substances in interior decoration materials: GB 1858 1.
1 is a one-component polyurethane modified by silicone, which absorbs water and cures without leaving harmful chemical components.
2. The surface layer is made of synthetic resin, water-based materials and recognized environmental protection materials.
Silicon PU has become an elastic court material for health professionals unanimously recognized by the market, which depends on fully considering the health and environmental protection performance of the material during research and development, taking the national limit of harmful substances in interior decoration materials as the inspection standard, and the elastic layer and reinforcement layer are one-component silicone modified polyurethane, which does not leave harmful chemical components after water absorption and curing; The surface layer is made of water-based materials, which is recognized as hygienic and environmentally friendly. After sampling inspection by the National Building Materials Testing Center, the complete set of silicone PU materials fully meets the national standard for the limit of harmful substances in interior decoration materials, and has passed the China environmental label product certification issued by the Certification Center of the Ministry of Environmental Protection, that is, the first-class mark of ten ring, and entered the government green procurement list.
Third, practicality.
More than 6,543,800 square meters of silicon PU site is being verified.
Peking University ■ Excellent weather resistance.
Silicon PU will not fade, harden and soften due to outdoor high and low temperature climate change, and can keep bright colors for a long time even under the conditions of strong ultraviolet rays, ozone, rain and temperature difference.
■ Super wear resistance
The original water-based surface layer of silicon PU can ensure the long-term stability of appearance and structural characteristics, and the wear resistance can meet the needs of long-term high-frequency use.
■ Excellent stain resistance
The surface of silicone PU is tough and dense, and it is not easy to be scratched by soles or other hard objects. Through simple cleaning, the stadium can be kept as clean as new for a long time.
building technology
_ Edit 1, basic processing
New cement concrete foundation
1. 1 grinding seam
Grind the base surfaces on both sides of the temperature joint with a width of 40-50mm and a groove depth of 3mm to make the surface of the temperature joint V-shaped.
1.2 pickling
Wet the foundation with clear water, evenly sprinkle and wash the foundation with 8% dilute hydrochloric acid, and then rinse it with clear water. After washing and drying, the cement on the foundation should be in the primary color, without white powder and loose objects. During the curing process, the water level should be circled and marked.
1.3 joint filling
Gently fill the exposed part of the temperature joint with caulking foam, smooth it with a portable mill, and then fill the V-shaped groove with TB-002 for more than two times. In the semi-dry state, TB-002 pastes a piece of 50mm wide non-woven fabric to cover the temperature joint, and the non-woven fabric shall not be wider than or beyond the V-shaped groove.
1.4 primer
After the foundation is dry enough, roll it on the base surface with special primer. In principle, the base surface will turn wet after brushing, and the insufficient parts should be made up. When the foundation surface strength is C20 or the surface is loose, TB-20 1 can be diluted with 1 times thinner and then coated on the foundation surface until the surface color becomes wet, so that the foundation surface can meet the construction requirements. Avoid construction under scorching sun or high foundation temperature to ensure the permeability of primer.
Immediately after spraying TB-20 1T, roll-coat diluted TB-002.
Old cement concrete foundation:
2. 1 Basic requirements:
Solid, flat, no sinker, and the crack width is not more than 10mm. If there is no reasonable temperature joint, it must be cut according to the requirements of new cement foundation. If the foundation sinks or is extremely uneven, and the broken cracks are too wide and too many, it is suggested to resurface asphalt concrete or cement concrete to level the foundation.
2.2 Basic treatment:
Basically, according to the new cement concrete foundation treatment method. If the foundation has cracks larger than 2mm wide, the column should be widened by 6~8mm with a cutting machine, and the joints should be polished and caulked according to the requirements of the new cement foundation; If the width is less than 2mm, grind the seam surface into a "V" shape with a width of 40~50mm and a depth of 3mm, and directly fill it with TB-002.
2.3 leveling and repair
For the water accumulation area circled in the pickling process, the coverage of the water accumulation area is less than 5mm, and the elastic layer is added with the special sand for the surface layer according to the ratio of 1: 1, and then an appropriate amount of diluent is added and stirred evenly, adjusted to a consistency suitable for construction, and the water accumulation area is scraped flat with a ruler or scraper; If the water depth exceeds 5mm, apply TB-002 Bo Tu to the water, then add 40~80 mesh sand to the base, mix evenly according to 1: 6 ~ 8, spread it out at the water and compact it. Pay attention to trimming when repairing, and do not make the repaired edge higher than the base surface. If it is higher, the elastic layer can only be constructed after curing and leveling.
Sipu Stadium 3. Asphalt foundation:
3. 1 Basic requirements:
The surface shall be uniform, solid, free of oil stains, unmixed asphalt blocks, smooth and free of cracks, rotten edges and pits. Joints shall be smooth and the compaction density shall be not less than 95%. After being rolled by a medium roller, there should be no obvious wheel tracks, soft peeling, loose floating soil and waves. The flatness is 3mm, the straightedge error is less than 3mm, and the flatness pass rate is over 90%. The natural curing of the new asphalt base is not less than 28 days, so that the high-boiling volatiles in the asphalt are completely volatilized, and the silicon PU material is well bonded with the base.
3.2 Basic treatment:
3.2. 1 Cleaning:
Wash the base surface with water solution of washing powder or detergent, and then rinse it with clear water. The cleaned base should be free of dust and other loose impurities. When cleaning, mark the water level.
Leveling:
Mix it evenly with TB-202a: 32.5r cement: 50~ 100 mesh sand =1:1.25:1.25, and scrape it on the surface of the base by scraper in two or more ways. It is required that the gaps on the surface of the base layer must be filled and sealed to ensure that there are no pinholes after dry curing. If there is a big gap in the base surface, it can be scraped for the first time according to TB-202a: 32.5r cement: 50~ 100 mesh sand = 1: 2: 2, and then scraped after mixing evenly; The second pass shall be leveled according to TB-202a: 32.5r cement: 50~ 100 mesh sand =1:1.25:1.25. .
2, silicon PU material construction
1, elastic layer:
Before the construction of elastic layer, the foundation treatment should be carefully checked and confirmed before the construction of elastic layer can be carried out. The elastic layer is a one-component water-absorbing and curing material, which is directly coated on the base surface with a toothed scraper. The thickness of each coating shall not exceed 2.5 mm, and the time interval of each coating shall be subject to the previous drying until the coating reaches the required thickness. When the temperature is low and the consistency of the coating increases, an appropriate amount of diluent can be added to adjust the construction consistency. If the air temperature is lower than 15℃ and the relative humidity is low, 3~5% water should be added and evenly mixed before smearing, so as to accelerate the curing of the material and reduce the interval time. The specific amount of water added depends on the weather on site. Before using the diluent, a small test must be carried out to confirm that there is no problem in curing the diluted material before use. Construction under the scorching sun should be avoided. After construction, strong sunlight should be avoided for 2~3 hours, otherwise the surface will blister due to too fast surface forming. After the elastic layer is dried and solidified, the surface flatness is detected by water accumulation method, and the water accumulation area is repaired and leveled by TB-002. If there are granular sundries or accumulation areas on the surface, the strengthening layer can only be constructed after finishing with a mill or other tools.
2, strengthening layer:
The reinforcing layer is a one-component water-absorbing material, which is directly scraped on the trimmed elastic layer with a rubber scraper 1~2 times. The scraped surface must be smooth and level, and the interval between scraping shall be subject to the previous drying until the required thickness is scraped. If the air temperature is low and the relative humidity is low, it is necessary to add 2~5% water, stir it evenly and then smear it to accelerate the curing of the material and reduce the interval time. The specific amount of water added depends on the weather on site. If the temperature is low and the coating consistency increases, a proper amount of thinner can be added to adjust the construction consistency. Construction under the scorching sun should be avoided. After construction, strong sunlight should be avoided for 2~3 hours, otherwise the surface will blister due to too fast surface forming. In the process of construction, if impurities are mixed in or uneven parts are scraped out, the surface construction can only be carried out after finishing and smoothing.
3. Surface:
The surface layer is a two-component water-based material, and the two components must be fully stirred evenly according to the prescribed proportion. Add water to dilute the construction consistency, generally add 50~80%, and spray it on the strengthening layer in multiple ways with a special spray gun. If the surface is rough, add special sand for spraying. The lowest temperature below 5℃ is not suitable for construction. After construction, keep 10 hour without water immersion. Reference practice of superficial courses in various courses;
A, basketball court: three ways to spray. Add 30% special sand to the first and second roads, and the dosage of TB-205 in each road is about 0. 12kg. The third way is without sand. When adding sand, first mix component A and special sand evenly, then mix component B evenly, and then dilute with water. In three seconds, the restricted area should be filled with sand three times and not filled with sand once.
B. Tennis court: There are three methods of spraying, the first one is spraying 50% sand, the second one is spraying 20% sand, and the third one is not spraying sand.
C badminton court and volleyball court: three coats without sand.
Step 4 emphasize
Measure and locate according to the standard size, mark the position of the boundary line, stick it on the court with masking paper along both sides of the boundary line, apply it between the masking paper with special marking paint, and tear off the masking paper after the surface is dry. TB-207 is a two-component material, and the two components A and B must be fully mixed and painted in two ways. If the surface of the court is rough, the first layer can be coated with 20% special sand for the surface to prevent water seepage.
5. Precautions:
5. 1 Materials must be weighed accurately and stirred evenly.
5.2 Any auxiliary materials must be tested before construction to confirm that there is no problem.
5.3 During the whole construction process, the surface must be kept clean before each working procedure.
5.4 Indoor site must ensure good ventilation effect.
5.5 After the site is laid, it must be kept for more than 5 days before it can be put into use.
operating characteristic
_ Edit 1, Comfort: Whether you are running, dribbling or not moving, Sipu's moderate varicose vein technology provides you with a high degree of comfort.
2. Shock absorption: When the silicon PU is impacted instantaneously, 63% of the impact force is absorbed by the ground system, which better protects the athlete's ankle.
3. Super abrasion resistance: the surface layer is made of high-strength silica gel particles with unique double-layer structure. More wear-resistant than ordinary products, and some have a service life of more than 8 years.
Silicone PU palace effect figure 4. Adhesion: Silicone polyurethane materials can penetrate the basic pores of different materials, resulting in high-strength adhesion, and better adhesion with foundation.
5. Technical stability: the rebound, shock absorption and friction coefficient of big balls and small balls can run through the whole site system to ensure their technical stability. 6. Ideal comprehensive function: suitable for indoor and outdoor basketball courts, tennis courts, volleyball courts, badminton courts, handball courts, leisure venues, gymnasiums and other sports venues.
7. Simple construction: it can be directly constructed on the basis of asphalt concrete or cement concrete, and all materials are classified and barreled according to the proportion, and the construction can be carried out according to the instructions, so the operation is simple and convenient.
8, easy to maintain: contains anti-fouling additives, stains will not penetrate the surface, rinse with water to keep fresh.
9, durable:
(1) Excellent weatherability: Silicon PU will not fade, harden, soften and turn white due to outdoor high and low temperature climate change, and it can keep bright color for a long time even under strong ultraviolet rays, ozone, rain and temperature difference.
② Super abrasion resistance: The surface layer of silicone PU adopts the way of adding silicone particles, and its structural characteristics are permanent and stable, with moderate hardness, and its abrasion resistance can meet the needs of long-term high-frequency use.
③ Excellent pollution resistance: the surface of silicon PU is compact and its hardness is moderate. It is not easy to crack, peel, fade and turn white, and the stadium can be kept as clean as new for a long time through simple washing.
Precautions for use
_ Edit ● Materials must be accurately weighed and mixed evenly.
During the whole construction process, the surface must be kept clean before each working procedure.
● Indoor venues must ensure good ventilation effect.
● After the site is laid, it must be kept for more than 5 days before it can be put into use.
● It is forbidden to wear leather shoes, high heels or sports shoes that fade easily.
● Cutting and extrusion are strictly prohibited, and the surface shall not rub against hard objects to avoid damage or rupture.
● It is forbidden to use corrosive chemicals such as acid and alkali on the floor, and keep away from fire and high temperature to avoid floor deformation.
application area
_ Edit 1。 Tennis courts, basketball courts, badminton courts, volleyball courts and sports fields in senior primary and secondary schools and institutions of higher learning;
2. Professional sports venues and training grounds;
3. Kindergarten playground, gym, dance studio, etc.
meet a condition
_ Edit 1。 Provide athletes with good protection function and effectively avoid possible injuries during sports;
2. Greatly improve the competitive level of athletes;
3. Beautify the campus environment and enhance the school image;
4. The service life is as long as 8- 15 years;
How to build Sipu Stadium? Detailed construction method?
The construction method of Sipu Stadium is as follows:
1. Surface treatment of base course: Before construction, clean up the silicon general stadium and enter the maintenance period.
2. Laying of elastic layer: Add solvent into the silicon PU floor material, adjust the construction consistency, and lay it on the base surface with a flat scraper or a toothed scraper until it is laid to the required thickness.
3. Laying the strengthening layer: add solvent to the silicone PU court material to adjust the construction consistency, and lay the elastic surface several times with a rubber scraper. The laid surface should be smooth.
4. Laying a wear-resistant surface layer: fully mix and stir the silicon PU court material according to the proportion of special sand, and lay it on the reinforced surface, usually two or three times; It can also be made into a shiny surface.
5. Scribing: measure and locate according to the standard size, mark the position of the line with canvas line, then stick the textured paper on the silicon PU field along the canvas line, mix it with special scribing paint and brush it between the two layers of textured paper with a brush, and tear off the textured paper when the material is dry.
Sixth, customs clearance is completed.
Laying of silicon PU material and matters needing attention:
Before the construction of elastic layer, it should be carefully checked to confirm that the foundation is properly handled before the construction of elastic layer can be carried out. The elastic layer is a one-component material, so it is only necessary to adjust the proper construction consistency with thinner and apply it to the base surface with a toothed scraper. The thickness of each coating shall not exceed 2mm, and the time interval of each coating shall be based on the previous drying until the coating reaches the new required thickness.
Pay attention to the leveling effect when scraping. If you can't smooth the scratches, you need to add more thinner to adjust the consistency and ensure the surface is flat. If the temperature is low and the humidity is low, it is necessary to add 3 ~ 8% water, stir well before scraping, which can shorten the drying time. The specific amount of water added depends on the weather on site. Construction under the scorching sun should be avoided.
After the elastic layer is dried and solidified, the surface flatness is measured by water accumulation method, and the water accumulation area is repaired and leveled by TB-002. Where there are mixed or accumulated granular sundries on the surface, the strengthening layer construction can only be carried out after finishing and leveling with a mill.