Water-based PRT colored pavement

Abstract

The invention discloses a water-based PRT colored pavement which mainly comprises a water-based emulsion, a curing agent and composite powder in a ratio of 3: 1: 12. The coating does not contain an organic solvent, has no pungent smell, has no harm to the working environment and the health of constructors, and is more environment-friendly and safer in the transportation process; by adopting the mode that spraying is matched with traditional construction and the corresponding proportion of materials, the opening time on the pavement is long, drying and curing are rapid, the binding force with the pavement is higher, and by spraying colored paint, the water-based perfluoroethylene transparent cover face and the anti-skid layer, the color vividness, the skid resistance, the wear resistance and other performance are further enhanced.

Description

technical field [0001] The invention relates to the technical field of colored pavements, and more specifically relates to a water-based PRT colored pavement. Background technique [0002] With the development of national economy, colored asphalt pavement has been widely used in urban road construction. There is a trend of using colored asphalt pavement in special-purpose lanes and bus stops in many cities in China, and it is increasingly popularized. At present, the colored asphalt pavement used in China is divided into the following types: [0003] Colored asphalt pavement is a relatively early functional pavement material. The integrated structure with the pavement makes it have good adhesion to the base layer and is not easy to fall off. At the same time, it has the characteristics of fast construction and high efficiency. Disadvantages: As the material of the asphalt itself becomes soft and sticky under high temperature in summer, it is prone to cracks; the weather re...

AI Technical Summary

Problems solved by technology

Disadvantages: Due to the material of the asphalt itself, it is determined to become soft and sticky under high temperature in summer, which is prone to cracks; poor weather resistance, low color fastness, easy to fade, and it is easy to lose the effect when it was just paved

Disadvantages: Epoxy system has high strength, is easy to become brittle, cracked, and easy to fall off from the base layer; acrylic system has good weather resistance, but low physical and mechanical strength and poor weather resistance

The advantages of water-based polymer mortar: low cost, simple and easy to operate, due to the addition of cement, the strength fully meets the standard of JT / T 712-2008, the disadvantage of water-based polymer mortar: based on the characteristics of cement-based materials that need to react with water, In high temperature weather, the material is easy to lose water, resulting in a decrease in strength. The thickness of the material construction should not be less than 3mm, otherwise it will crack or the strength will not meet the requirements. Construction on asphalt pavement, the toughness of the material is inconsistent with the flexibility of the asphalt pavement. After a long time, it will crack, hollow out, and then fall off

[0006] Advantages of two-component water-based polyurethane mortar (asphalt force): water-based polyurethane material is a very good cementing material at present, with excellent weather resistance and wear resistance, water-based polyurethane mortar has super strong combination with cement pavement and asphalt pavement The effect is not easy to fall off; Disadvantages: short opening time, not easy to operate, slow construction speed, professional construction team is required, large shrinkage force, when the ground temperature changes and the temperature drops, the shrinkage force sometimes pulls the asphalt pavement apart, causing cracks, insufficiency Anti-yellowing, color change of light color, greater color change after yellowing

[0007] The cost of traditional colored asphalt is very expensive, which affects the possibility of large-area use, and due to the high temperature (close to 180°C) during construction, it is easy to cause color degradation and aging, so the color of this colored asphalt is relatively dark and not bright enough. , and some pigments are not resistant to high temperature, so the range of pavement color selection is small, such high cost, low effect colored asphalt pavement, it is difficult to be widely used

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