Polymer modified asphalt emulsions for treatment of road surfaces
OwnerKoichi Takamurainventor
Life of this patent
Estimating the term…
Abstract
A composition for rejuvenating asphalt pavement according to the present invention comprises an asphalt binder, water, a cationic surfactant, a recycling agent, and a cationic, co-agglomerated styrene butadiene rubber latex, which includes sulfur and a vulcanizing agent. The composition is also useful as a scrub seal, fog seal, sand seal as well as for crack filling and the prevention of reflective cracking. The inventive composition may be used in emulsions with different setup times. The invention also includes a method for treatment of aged and cracked asphalt by application of the disclosed compositions.
Claims18
A composition for rejuvenating asphalt pavement comprising,
- a. asphalt,
- b. a cationic surfactant,
- c. a recycling agent, and
- d. a co-agglomerated styrene butadiene rubber latex.
An asphalt emulsion comprising a co-agglomerated styrene butadiene rubber latex.
An asphalt emulsion for treatment of aged and cracked asphalt prepared by a method comprising
- a. generating free radicals in a stream of soap
- b. and activating a redox initiator system.
A method for producing latices which contain both rigid domains and rubbery domains by agglomerating latex particles with another solids dispersion.
A method for preparing a polymer modified asphalt emulsion comprising by agglomerating a first dispersion of SBR latex with a second dispersion that includes sulfur and a vulcanizing agent.
Dependencies are inferred from the claim text.