A sports track pavement material and preparation method thereof

Abstract

The invention relates to an athletic-track paving material and a preparation method thereof. The material is prepared from the following components: 100 parts of aggregate and 6 to 8 parts of asphalt, wherein the aggregate is prepared from the following components in percentage by volume: 25 to 52 percent of coarse aggregate, 42 to 75 percent of rubber powder and 6 to 8 parts of glass bead; the coarse aggregate is prepared from the following components in percentage by volume: 30 to 50 percent of haycite and 50 to 70 percent of rubber particle. All the components of the aggregate are uniformly mixed at 110 DEG C, an obtained first mixture is agitated with an asphalt material formed at 150 DEG C, and an obtained second mixture is made into the athletic-track paving material; the pollution in the material self and a construction process is little; the environmental protection performance is favorable; the athletic-track paving material has properties of being good in flatness, resistant to wear, wide in hardness range, appropriate in elasticity, excellent in shock absorption performance, capable of being applied in an all-weather manner and stable in physical performance, and the like, has quite low requirements on a device, personnel and structural design when being used for track surfacing, is simple in construction technique, is convenient to popularize and apply, and is easier in the control of construction quality; the cost is decreased; moreover, the material is convenient to repair and maintain when being used for the track surfacing, and can be recycled; a long-term environmental problem does not exist.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a sports track pavement material and a preparation method thereof. Background technique [0002] With the development of the national fitness campaign, the requirements for sports facilities continue to increase. In order to lay various sports venues, pavement materials have become a widely demanded product. At present, polyurethane plastic track has become the most common all-weather track and field track due to its characteristics of high strength, good elasticity, wear resistance, low temperature resistance, adjustable hardness, convenient construction, beautiful appearance, shockproof and sound insulation, strong adhesion, and durability. , It is widely used in stadiums for large and medium-sized sports competitions and school track and field for teaching. However, the issue of toxic pollution of plastic runways has been widely concerned, and in recent ...

AI Technical Summary

Problems solved by technology

Among them, TDI is highly toxic, while MDI has little pollution after the plastic runway is laid, but it has certain toxicity. At the same time, the price of MDI polyurethane plastic runway is high, and the source is not as wide as TDI, and some solvents need to be added to the construction to cause pollution. Therefore, the plastic runway The problem of toxic pollution has not been effectively solved

Although research on improving the environmental friendliness of plastic runways has achieved some results in recent years, including optimization of raw materials, research on non-MOCA chain extenders, development of new catalysts, and use of modified materials, etc., due to the fact that the quality of plastic runways Affected by many aspects, for example, first of all, it is necessary to ensure the qualification and strength of the raw plastic runway manufacturer, strictly control the raw material input, monitor the construction process in real time, ensure that the construction method is standardized, the construction machinery is in good condition, and there is a sound quality control management system. Every link needs to be strictly controlled, otherwise it will be difficult to eliminate the toxicity of polyurethane plastic track

[0004] Due to people's increasing attention to health and environmental protection, the development of lower cost, more environmentally friendly and healthy directions has become an inevitable requirement for sports ground pavement materials. Soil playgrounds and cement playgrounds obviously cannot meet the requirements, while polyurethane plastic runways are widely used in environmental issues. Questioned, therefore, a new type of runway pavement material is urgently needed

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