Abstract:
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. A radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function may calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge includes an electromagnetic moisture property gauge that determines a moisture property of the material. An electromagnetic field generator may generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. An electromagnetic sensor may determine a frequency response of the material to the electromagnetic field across the several frequencies.
Abstract:
Water-soluble solvent compositions, including from about 10% to about 60% by weight of an aromatic ester; from about 30% to about 60% by weight of an aliphatic ester; from 0% to about 15% by weight of a co-solvent; from 0% to about 20% of one of a cyclic terpene and a terpenoid; from 0% to about 1% by weight of an odor-masking agent; and from 0% to about 20% by weight of a nonionic surfactant, for removing petroleum residue from a substrate, and methods of use thereof. The composition can further comprise water. The composition also can comprise an aqueous solution. The method for removing petroleum residue from a substrate can further comprise recycling the solvent composition by using a countercurrent separation column charged with compressed ammonia and/or carbon dioxide and a spinning band distillation column to separate the solvent composition from the petroleum residue.
Abstract:
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. A radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function may calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge includes an electromagnetic moisture property gauge that determines a moisture property of the material. An electromagnetic field generator may generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. An electromagnetic sensor may determine a frequency response of the material to the electromagnetic field across the several frequencies.
Abstract:
A system configured to determine a property of a paving-related material is provided. The system includes a measuring device configured for measuring a property of a paving-related material and a cellular computer device configured for being in communication with and receiving data from the measuring device.
Abstract:
A system is provided. The system includes a conveyor apparatus configured for conveying a material and a water content measurement system positioned about the conveyor apparatus for determining water content in the material. A dimension characteristic measurement system for detecting one or more dimension characteristics of the material is provided and a computer device is configured to manipulate data received from the water content measurement system and the dimension characteristic measurement system to determine a water content of the material.
Abstract:
A method of obtaining a material property of a pavement material from a microwave field generally includes generating a microwave frequency electromagnetic field of a first mode about the pavement material. The frequency response of the pavement material in the electromagnetic field can be measured, such as by a network analyzer. The measurement of the frequency response permits correlating the frequency response to a material property of the pavement material sample, such as the density. A method of correcting for the roughness of a pavement material divides the pavement into a shallow layer and a deep layer. Two planar microwave circuits measure the permittivity of the shallow and deep layer. The permittivities are correlated to correct for roughness. An apparatus for obtaining the density of a pavement sample includes a microwave circuit and a network analyzer. The network analyzer measures the frequency response to determine the density of the pavement material.
Abstract:
A system for determining a property of a paving-related material is provided. Such a system comprises a measuring device for selectively and directly measuring the property. A computer device is capable of executing a software program product and communicating with the measuring device. The computer device directs the measuring device to measure the property of the paving-related material according to a parameter determined by the software program product, and to receive data comprising the measured property from the measuring device. A communication element operably engaged between the measuring device and the computer device allows communication therebetween. The communication element is configured to allow the computer device to be spaced apart from the measuring device, thereby allowing the computer device to be prepared, to include the parameter and to manipulate the data, in spaced apart relation with respect to the measuring device. An associated method is also provided.
Abstract:
A system adapted to determine a property of a paving-related material is provided. Such a system comprises a central computing system housing database, such as a geographic information system (GIS). A measuring device for selectively and directly measuring the property of the paving-related material is remotely disposed with respect to the central computing system and operably engaged with a locating device, such as a global positioning system (GPS) device, for determining a location of the measuring device when the property of the paving-related material is selectively measured thereby. A portable handheld computer device is in communication with the measuring device, the locating device, and the central computing system, wherein the handheld computer device is configured to receive data, comprising the measured property of the paving-related material and the corresponding location of the measuring device when the property is selectively measured thereby, from the measuring device and the locating device, and to communicate the data with the central computing system for incorporation of the data into the database. An associated device, apparatus, and method are also provided.
Abstract:
The invention provides a method and apparatus for facilitating calibration of a nuclear gauge by automating the movement of a source rod between a plurality of source rod positions. The apparatus can include a linearly moveable member, such as a threaded rod, a motorized linear actuator, such as a stepper motor, and a source rod grip attached to the linearly moveable member for affixing the source rod to the member.
Abstract:
A system for locating and tracking an object is provided. The system includes a measuring device configured to determine a property of a paving-related material, a locating device configured to determine a location of the measuring device, a tracking system configured to store tracking information associated with the measuring device and one or more properties determined by the measuring device, and a communications system configured to transfer, to a remote device, the location of the measuring device and the tracking information associated with the measuring device.