A marking device that includes a base; at least two telescoping legs movably coupled to the base; and an indicator, the indication being attached to a top portion of an uppermost leg of the at least two telescoping legs, the marking device including: (1) a retracted position wherein the at least two telescoping legs are seated within the base and (2) an extended position wherein the at least two telescoping legs are telescoped outwards from the base and locked in the extended position.

A marking device that includes a base; at least two telescoping legs movably coupled to the base; and an indicator, the indication being attached to a top portion of an uppermost leg of the at least two telescoping legs, the marking device including: (1) a retracted position wherein the at least two telescoping legs are seated within the base and (2) an extended position wherein the at least two telescoping legs are telescoped outwards from the base and locked in the extended position.

A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.

A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.

A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. An outer surface of the sheath may be textured. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded or injection molded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.

A method for preparing a paving material includes heating an aggregate comprising recycled asphalt pavement using an emitter generating electromagnetic radiation having a wavelength of from 2 microns to 1 millimeter. The method utilizes solid phase autoregenerative cohesion to prepare a material suitable for use as an aggregate in a hot mix asphalt pavement installation.

A method for preparing a paving material includes heating an aggregate comprising recycled asphalt pavement using an emitter generating electromagnetic radiation having a wavelength of from 2 microns to 1 millimeter. The method utilizes solid phase autoregenerative cohesion to prepare a material suitable for use as an aggregate in a hot mix asphalt pavement installation.

A method of resurfacing exposed surfaces of existing roads, and a resurfaced road. The method may include forming stress absorbing membrane interlayers (SAMIs) over the exposed surface of the existing road. The SAMIs may include a first layer of a binding material and a fiber material. The method may also include disposing an asphalt mixture directly over the SAMIs. The disposed asphalt mixture may cover the SAMIs. Additionally, the method may include shaping the asphalt mixture disposed over the SAMIs.

A method of resurfacing exposed surfaces of existing roads, and a resurfaced road. The method may include forming stress absorbing membrane interlayers (SAMIs) over the exposed surface of the existing road. The SAMIs may include a first layer of a binding material and a fiber material. The method may also include disposing an asphalt mixture directly over the SAMIs. The disposed asphalt mixture may cover the SAMIs. Additionally, the method may include shaping the asphalt mixture disposed over the SAMIs.

A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. An outer surface of the sheath may be textured. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded or injection molded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.