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Application Method Of Vulcanized Rubber Powder In Road Paving

wallpapers Environment 2020-11-30
Vulcanized rubber powder is a powdered elastomer obtained by crushing waste rubber products by mechanical crushing, freezing crushing and other methods. It is widely used in rubber industry and non-rubber industry to achieve the dual purpose of improving performance and reducing cost. In the actual production and application process, vulcanized rubber powder has a variety of application methods in road paving, which play an irreplaceable role in improving the service life of roads, mainly including the following two application methods.
 
1. Vulcanized rubber powder + asphalt
 
At present, rubber asphalt is the most commonly used method of vulcanized rubber powder in road paving. It mainly utilizes the melting and expansion reaction of vulcanized rubber powder and asphalt during the mixing process to achieve the coexistence of the two, and ultimately improve the physical and chemical properties of asphalt effect. When vulcanized rubber powder is used in asphalt pavement paving, the properties of vulcanized rubber powder and the performance of asphalt will directly affect the performance and service life of rubber asphalt.It is necessary to select vulcanized rubber powder with appropriate indicators, and reasonably determine the proportion of vulcanized rubber powder and the preparation process.
 
2. Vulcanized rubber powder + concrete + asphalt
 
In the actual processing and application process, vulcanized rubber powder, concrete and asphalt are made into rubber powder. Asphalt concrete can be mixed with rubber powder and asphalt in advance to form rubber asphalt, and then mixed with mineral materials. The rubber asphalt can be used as a binder. ; Or the vulcanized rubber powder and mineral material are blended first and then sprayed into asphalt to make rubber powder modified asphalt concrete.

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