Road structure – process – or apparatus – Apparatus – Screed or drag
Patent
1990-08-15
1991-09-24
Britts, Ramon S.
Road structure, process, or apparatus
Apparatus
Screed or drag
404 98, 404 73, E01C 1922, E01C 1128, E01C 500
Patent
active
050510266
ABSTRACT:
Obtainment of and control of specific asphalt paving densities during roadbed repair by preshaping hot mat top surfaces prior to compaction. Like a shaped munition charge, a preshaped top surface on recently laid hot asphalt mat transmits compaction forces in precalculable directions and carries therewith asphaltic materials so as to obtain desired finished paving densities. A conventional strike off bar is modified with base margin indentations which partially and wholely, according to desired specifications, grade or top dress hot asphaltic mat with desired, force-transmitting planes. Adjunct apparatus is employed by way of translating and rotating plates to partially or wholely cover the indentations so as to effect various, but differing, desired mat surface shapes. An improvement to the conventional vibrating screed is also employed to shape the initial asphaltic mat shape while simultaneously tamping the shape gradually into its desired and compacted final form. This conforming screed is used with the modified strike off apparatus and a roller compactor or may be used in lieu of either.
REFERENCES:
patent: 4068969 (1978-01-01), Beach et al.
patent: 4856932 (1989-08-01), Kraft
patent: 4869618 (1989-09-01), Morrison
AW-2R, Inc.
Britts Ramon S.
Connolly Nancy P.
LandOfFree
Controlled density paving and apparatus therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlled density paving and apparatus therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled density paving and apparatus therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1693676