Method of sealing joints in road surfaces and subsurfaces
AssigneeD&D Emulsions, Inc.
InventorsDelbert L. Dawson, Colin Durante
Life of this patent
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Abstract
A method of sealing and strengthening the joints in an asphalt road surface and subsurface to prolong the useful life of the road utilizes a polymer modified cationic maltene emulsion containing polymer modified maltene oils and resins, and surfactants/and wetting agents. The emulsion is applied to the longitudinal joints and other joints in the asphalt pavement surface. The emulsion reduces voids in the asphalt pavement and chemically improves the asphalt binder properties, thereby altering the modulus of elasticity of the asphalt binders so that the resistance of the pavement to tension is increased, and the water absorption of the pavement is reduced.
Claims10
A method of sealing joints in an asphalt pavement surface comprising the following steps:
- (a) preparing a non-asphalt emulsion that combines with at least one binder in asphalt pavement to create a rubberized sealant,
- (b) applying said emulsion only to a joint area in an asphalt surface with an application rate sufficient to fill voids in the joint area, and
- (c) allowing said emulsion to dry, thereby sealing and strengthening the joint area in the asphalt pavement surface so as to delay deterioration of the asphalt pavement surface.
A method of sealing joints in an asphalt pavement surface comprising the following steps:
- (a) preparing a non-asphalt emulsion that combines with at least one binder in asphalt pavement to create a rubberized sealant, said emulsion comprising at least one polymer modified maltene oil, at least one polymer modified maltene resin, and at least one surfactant/wetting agent,
- (b) applying said emulsion only to a joint area in an asphalt surface with an application rate sufficient to fill voids in the joint area, and
- (c) allowing said emulsion to dry, thereby sealing and strengthening the joint area in the asphalt pavement surface so as to delay deterioration of the asphalt pavement surface.
A method of sealing joints in an asphalt pavement surface comprising the following steps:
- (a) preparing a non-asphalt emulsion that combines with at least one binder in asphalt pavement to create a rubberized sealant, said emulsion being prepared with a heated milling process so that particle sizes in said emulsion are increased by the heating, said particle sizes being reduced to less than a mill setting after said particles have cooled, so that application of said emulsion alters the modulus of elasticity of the binders of the asphalt surface by filling voids in the asphalt pavement surface material,
- (b) applying said emulsion only to a joint area in an asphalt surface with an application rate sufficient to fill voids in the joint area, and
- (c) allowing said emulsion to dry, thereby sealing and strengthening the joint area in the asphalt pavement surface so as to delay deterioration of the asphalt pavement surface.
Dependencies are inferred from the claim text.