Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-aging road asphalt preparing method
The invention relates to an anti-aging road asphalt preparing method and belongs to the field of road traffic. The method includes the steps that firstly, matrix petroleum asphalt, SBS modifying agents and nano calcium carbonate are made into SBS modified asphalt in a heating condition; then, calcium aluminate powder is added into hydrochloric acid with the pH value adjusted to range from 1.1 to 3.5, and the mixture is evenly stirred, heated in a temperature programming mode and naturally cooled to the room temperature; lower-layer sediment is obtained through separation, dried, ground and dried, and powder is obtained; the powder is mixed with cationic starch, and the mixture is added to the SBS modified asphalt for mixing; polyacrylamide and a stabilizer are added into the mixture, mixed and stirred, and the anti-aging road asphalt is obtained. The anti-aging road asphalt preparing method has the advantages that the prepared road asphalt is excellent in anti-aging performance, the cracking resistance in cold regions and under heavy loads is improved, the use cycle is long, and the service life can reach 30-40 years; excellent environment-friendliness is achieved, and pollution generated in the production process of polymer modifiers can be reduced.
Anti-aging road asphalt preparing method
The invention relates to an anti-aging road asphalt preparing method and belongs to the field of road traffic. The method includes the steps that firstly, matrix petroleum asphalt, SBS modifying agents and nano calcium carbonate are made into SBS modified asphalt in a heating condition; then, calcium aluminate powder is added into hydrochloric acid with the pH value adjusted to range from 1.1 to 3.5, and the mixture is evenly stirred, heated in a temperature programming mode and naturally cooled to the room temperature; lower-layer sediment is obtained through separation, dried, ground and dried, and powder is obtained; the powder is mixed with cationic starch, and the mixture is added to the SBS modified asphalt for mixing; polyacrylamide and a stabilizer are added into the mixture, mixed and stirred, and the anti-aging road asphalt is obtained. The anti-aging road asphalt preparing method has the advantages that the prepared road asphalt is excellent in anti-aging performance, the cracking resistance in cold regions and under heavy loads is improved, the use cycle is long, and the service life can reach 30-40 years; excellent environment-friendliness is achieved, and pollution generated in the production process of polymer modifiers can be reduced.
Anti-aging road asphalt preparing method
DING YUQIN (Autor:in) / XUE HONGJUAN (Autor:in)
09.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
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