Roadway repair and maintenance

Details Roadway repair and maintenance Roadway repair and maintenance

2009-03-12

2010-06-22

Szekely, Peter (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S205000, C523S206000, C523S215000, C524S059000

Reexamination Certificate

active

07741387

ABSTRACT:
A flowable material for pavement repair and maintenance comprises rounded sand coated with a polymeric surfactant to be non absorbent of water in the presence of a polymer mix which allows time for easy placement of the mix into damaged pavement. The polymeric surfactant coating creates a strong affinity between the sand and the polymer mix. The materials are chosen preferably to cause an isoviscous reaction to occur. This type of reaction is characterized by a setting phase which stabilizes the repair before a rapid change in viscosity occurs and may be further enabled by an excess of polymer to increase flowability. An excess of polymer insures that sufficient binder remains at the upper portions of the repair to provide flexible and waterproof structure while excess fluid components settle to the bottom of the repair before setting occurs to seal the surrounding pavement. The slow buildup of viscosity allows the sand to settle so that the mix becomes self-compacting.

REFERENCES:
patent: 4018739 (1977-04-01), Okamoto et al.
patent: 4246157 (1981-01-01), Laitar
patent: 4630963 (1986-12-01), Wyman
patent: 4722976 (1988-02-01), Ceska
patent: 5242708 (1993-09-01), Fekete et al.
patent: 5426140 (1995-06-01), Fekete et al.
patent: 5494741 (1996-02-01), Fekete et al.
patent: 5852071 (1998-12-01), Geoffrey
patent: 6052964 (2000-04-01), Ferm et al.
patent: 6683122 (2004-01-01), Zilg et al.
patent: 2003/0090016 (2003-05-01), Petrovic et al.
patent: 2004/0214921 (2004-10-01), Chaiko

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