Authors:
Na Li
1
and
Xi juan Xu
2
Affiliations:
1
School of Highway, Chang'an University, Xi'an 710064, China, Xi'an Highway Research Institute, Xi'an 710065, Shaanxi and China, China
;
2
Xi'an Highway Research Institute, Xi'an 710065, Shaanxi and China, China
Keyword(s):
Flame retardant modified asphalt,Rheological properties, Flame retardant.
Abstract:
Different inorganic flame retardants or organc flame retardants are added to the matrix asphalt, and the flame retardant modified asphalt is formed through a certain technical process. The experimental study on the rheological properties of the flame-retardant modified asphalt mortar shows that the addition of the flame retardant makes the softening point of the asphalt mortar increase, the penetration degree decreases, the ductility decreases, the viscosity of the asphalt mortar also increased correspondingly, and the viscosity of the flame-retardant asphalt mortar containing decabromodiphenyl ether was proportional to the added amount within a certain range. The short-term aging has a certain degree of influence on the penetration and softening point of the flame-retardant asphalt mortars of each component, but from the analysis of the results of the residual penetration, it can be concluded that the components of the flame-retardant asphalt mortar can meet the requirements of anti
-aging performance.
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