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（1）Material difference ① Asphalt color-changing pavement: Usually a mixture of decolorized asphalt and pigment is used, or a color-changing agent is used.② Colored anti-skid pavement: Mainly uses MMA color adhesive mixed with colored ceramic particles. （2） Construction difference ① Asphalt color-changing pavement: The construction method is relatively simple. The color-changing agent is sprayed on the original black asphalt pavement. The decolorized asphalt is mixed with various colored stones, pigments and additives at a specific temperature, and then spread and rolled to form a colored asphalt pavement with certain strength and road performance.② Colored anti-skid pavement: No mechanical equipment is required during construction. The colored adhesive material is poured on the asphalt pavement or concrete pavement, and a scraper is used to scrape and smooth it. When it is not dry, the anti-skid particles are sprinkled and embedded in the adhesive. After cooling, the excess particles are swept away. The thickness is generally between 2-3 mm. （3）Performance difference ① Asphalt color-changing pavementAnti-skid performance: The anti-skid value is similar to that of ordinary pavement, and the anti-skid effect is limited.Service life: Generally, the service life is short, and the service life of non-motorized vehicle lanes is not less than 6 to 8 years, and that of motor vehicle lanes is not less than 3 to 4 years.Aesthetics: Bright colors, can be freely matched with various colors and patterns, and has strong ornamental value.② Colored anti-skid pavement:Anti-skid performance: The anti-skid value can reach 85, which is a high anti-skid product, which can greatly shorten the braking distance of motor vehicles, has good water dispersion and reduces splashing.Service life: It has a long service life and can effectively extend the service life of the pavement.Aesthetics: Bright colors, even distribution, anti-oxidation, anti-ultraviolet, no powdering, no fading, and good weather resistance. （4）Application scenarios ① Asphalt color-changing pavement: Asphalt color-changing pavement is suitable for occasions where the pavement color needs to be changed but the anti-skid requirements are not high, such as urban roads, park sidewalks, community trails, etc.② Colored anti-skid pavement: widely used in places that require high anti-skid performance, such as entrances and exits of underground parking lots, crossroads, pedestrian walkways, overpasses, highways, tunnel entrances and exits, and bus stops. In summary, asphalt color-changing pavement and colored anti-skid pavement have significant differences in materials, construction methods, performance, and application scenarios. Colored anti-skid pavement is superior to asphalt color-changing pavement in anti-skid performance and service life, but the construction cost may be higher.

What is colored anti-skid pavement? Colored anti-skid pavement is a new pavement beautification technology that can make traditional black asphalt concrete and gray cement concrete pavements more pleasing to the eye through color construction, while also having an anti-skid effect.   It has high friction and strong anti-skid properties, can effectively shorten the braking distance and prevent vehicles from skidding; it has the effect of pavement color warning and vibration warning, and the construction is simple and fast with a short cycle. Where is colored anti-skid pavement mainly used？ Colored anti-skid pavement is suitable for urban trunk roads, urban secondary trunk roads, urban overpasses and sidewalks, community roads and parking lots, etc.

The significance of permeable concrete pavement Permeable concrete can make rainwater quickly penetrate into the surface, effectively replenish groundwater, alleviate the urban heat island effect, and protect the city's natural water system from damage. It has strong environmental value. At the same time, it solves the problem of easy water accumulation on ordinary roads, improves walking safety and comfort, and is also of great significance for improving the living environment. Permeable concrete subverts its single gray color while retaining the characteristics of traditional concrete. Different colors can be used to integrate the ground with buildings and landscapes to create a warm and harmonious living environment! Characteristics of permeable concrete pavement ① High permeability: Permeable floor has 15%-25% pores, which can make the water permeability rate reach 31-52 liters/meter/hour, which is much higher than the discharge rate of the most effective rainfall under the best drainage configuration.② High bearing capacity: According to the appraisal of the national testing agency, the bearing capacity of the permeable floor can fully meet the bearing standard of C20-C25 concrete, which is higher than the bearing capacity of general permeable bricks.③ Decorative effect: The permeable floor has a color optimization ratio scheme, which can cooperate with the designer's unique creativity to achieve the decorative style required by different environments and personalities. This is difficult to achieve with general permeable bricks.④ Easy maintenance: The pore blockage problem that people are worried about is unnecessary. The unique permeable paving system makes it easy to solve it by high-pressure water washing.⑤ Freeze-thaw resistance: Permeable pavement has stronger freeze-thaw resistance than general concrete pavement, and will not be affected by freeze-thaw and fracture, because its structure itself has larger pores.⑥ Durability: The durability and wear resistance of the permeable floor is better than asphalt, close to ordinary floor, avoiding the shortcomings of general permeable bricks such as short service life and uneconomical.⑦ High heat dissipation: The low density of the material itself (15-25% of the voids) reduces the ability to store heat. The unique pore structure allows the lower underground temperature to be transmitted to the ground, thereby reducing the temperature of the entire paved surface. These characteristics make the permeable paving system close to the ground covered with natural vegetation in terms of heat absorption and heat storage functions.

Pharmaceutical factories generally choose self-leveling flat paint, flat coating topcoat, polyurethane topcoat, and water-based polyurethane self-leveling mortar.Self-leveling paint, flat coating topcoat: can be used in dry packaging workshops, flat coating can be used in material channels, warehouses and other areas.Polyurethane topcoat: can be used in areas where corrosive raw materials are stored, and warehouse channels can be usedWater-based polyurethane self-leveling mortar: can be used in special spaces such as production lines with anti-corrosion requirements, high and low temperature workshops, etc.

The underground site has no waterproof layer, the paint and the ground are delaminated and peeled off, and the ground is not up to standard. These problems will cause the floor paint to fail to adhere firmly and cause delamination.

（1） Penetrating primer has strong penetration and can penetrate into the base material. Penetrating primer can increase adhesion and hardness for slightly powdery and sandy bases and delay service life.（2）Sealing primer has good sealing properties and can seal pores and gaps to prevent moisture. Sealing primer can block the pores in the substrate and has an anti-alkali isolation effect. For normal bases, sealing primer can be used, and the price is also more affordable.

According to the different usage scenarios and the wear and performance requirements for the flooring, polyurethane mortar flooring is recommended for the following reasons:(1) Water-based polyurethane mortar self-leveling can withstand high and low temperatures (-40℃~120℃) and acid and alkali;(2) Pollution resistance, wear resistance, good walking feeling, tough coating film, high mechanical properties, good impact resistance, improved service life, flat and bright, smooth, adjustable thickness, easy construction.

The materials of artificial grass for sports field are generally PE (polyethylene), PP (polypropylene), PA (nylon)①Polyethylene (PE): good performance, widely accepted by the public; often used to make artificial grass for football field②Polypropylene (PP): grass fiber is harder, often used to make artificial grass for tennis courts, artificial grass for basketball courts, etc.;③Nylon (Nylon): the price is relatively expensive, mainly used for high-end venues such as golf.

Advantages of artificial grass: ①Durability: Artificial turf is more wear-resistant and has a longer service life.②Low maintenance cost: No need for regular mowing, fertilization or irrigation.③Climate adaptability: Not affected by weather, can be used in all seasons, and can also be used in semi-indoor football fields.④Good drainage: Reasonable design can effectively drain water and avoid water accumulation.⑤Safety: Modern artificial turf provides good cushioning and grip, reducing the risk of injury to athletes. Advantages of natural grass: ①Ecological and environmental protection: Natural turf can improve air quality, release oxygen and absorb carbon dioxide.②Comfort: The touch and appearance of natural grass are more natural, giving people a better sports experience.③Temperature regulation: Natural turf can naturally regulate the temperature of the ground and provide a cooler environment.④Biodiversity: It can support the survival of microorganisms and insects and promote ecological balance. Compared with natural grass, （1）artificial grass does not need to consume fertilizer, water and other resources necessary for growth, can meet the needs of all-weather high-intensity sports, and is simple to maintain and has low maintenance costs, which is more suitable for modern needs.（2） Artificial grass overcomes several major difficulties of natural grass: ① Natural grass cannot grow under extreme climatic conditions ② Some countries and regions cannot afford the high maintenance costs due to economic reasons ③ It cannot be planted in some stadiums with roofs (semi-indoor football fields). ④ On the field, natural grass needs to be marked with white powder, and the missing parts need to be re-painted after each use, while all markings of artificial grass are directly woven, so there is no need to worry about frequent marking.

（1）Anti-aging, sun protection, waterproof, anti-slip, wear-resistant, comfortable to the feet, bright color, breathable and water-permeable.（2）Economical and practical, no need to invest a lot of maintenance costs, especially in line with urban water conservation requirements.（3）Meet environmental protection requirements and use all-weather. Use silver-white quartz sand or colored sand filling to prevent students from getting their clothes and environment dirty during exercise, and all markings on the playground are directly woven, no longer troubled by frequent marking.（4）It has good elasticity and sufficient buffering force to reduce noise on the playground, and has the effect of shock absorption and pressure reduction, meeting the requirements of open teaching.（5） One-time investment can guarantee a service life of more than five to eight years, and the subsequent maintenance cost is low.（6）The construction and installation period is short and the effect is fast.

(1) First, determine the size and terrain of the football field, and measure and plan according to the design requirements.(2) Foundation treatment is an important part of the construction process. It is necessary to ensure that the site is flat, solid, and free of debris, and to design drainage for the site to ensure that there is no water accumulation on the site.(3) The required materials and equipment need to be prepared:① When selecting materials, such as artificial turf, fillings, quartz sand, glue, etc., pay attention to quality and safety to ensure the quality of construction and the safety of athletes. Product quality: Appearance: bright color, no color difference; flat grass seedlings, uniform tufting, good consistency; moderate amount of glue used in the backing and penetrated into the backing, the overall flatness, uniform needle spacing, no skipped stitches;② Production equipment: see whether it is woven by professional imported equipment.(4) Brand: The brand itself represents quality, price, and service. Choose a manufacturer that can provide professional high-quality products and professional construction equipment and professional construction technical support, and has a complete after-sales service system.

Each type of plastic track is laid on site, and there are many external factors such as area, temperature, rainy season and dry season. The construction period varies greatly according to the on-site conditions. Specific projects need to be calculated specifically, and an accurate construction period cannot be provided.

There are different requirements for different ground surfaces, such as:(1) The cement foundation requires the ground to be flat, with a 3‰-8‰ turtleback drainage slope, no obvious water accumulation on the ground, no sanding or delamination on the ground, the cement hardness reaches C25 or above, no obvious exposed steel bar heads, and the maintenance cycle of the new foundation needs to be more than 28 days.(2) The asphalt foundation requires the surface asphalt particles to be fine-grained, with a density of 95%, the ground does not soften or turn black, there is no dirt on the surface, the maintenance cycle of the new foundation needs to be more than 15 days, and there is no obvious water accumulation on the ground.

Regarding the choice of plastic track, you can choose different plastic tracks according to the usage scenario(1) For primary and secondary school sports fields, we can choose breathable plastic tracks, which are very cost-effective and can be used for about 5-6 years;(2) For high school and university sports fields, we can choose hybrid plastic tracks, which are moderately priced and can be used for 8-10 years;(3) For professional competition venues and sports fields, we can choose fully plastic tracks or prefabricated plastic tracks, which are relatively more expensive and can be used for 10-12 years;