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公开(公告)号：US12123853B2
公开(公告)日：2024-10-22
申请号：US17958941
申请日：2022-10-03
发明人： David J. White
CPC分类号： G01N3/14 , E01C19/288 , G01N33/24 , G01N33/42 , E01C19/282
摘要： A compaction control system for and methods of accurately determining properties of compacted and/or existing ground materials. The compaction control system includes a compaction machine that further includes a vibratory drum (or roller). The compaction machine is equipped with sensors to determine position and heading, vibration amplitudes at selected frequencies, and material type and moisture content information. Further, the compaction control system includes a controller and certain algorithms for processing the sensor information. Namely, a method is provided of using the sensor information to assess the improvement in compaction and then determine whether and/or when further ground improvement solutions are needed.
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公开(公告)号：US12098988B2
公开(公告)日：2024-09-24
申请号：US17164306
申请日：2021-02-01
申请人： Alaeddin Mohseni
发明人： Alaeddin Mohseni
CPC分类号： G01N11/142 , C10C3/002 , C10C3/007 , C10C3/18 , G01N1/2813 , G01N11/165 , G01N33/42 , G01N33/38 , G01N2203/0094
摘要： The use of recycled materials can have significant economic value. With the increasing quantity of recycled material used in viscoelastic materials, especially asphalt mixture, understanding how they interact with original materials to produce a mixture that performs successfully, becomes critical. Currently, the technology to determine the effect of additives on the performance of asphalt mixture is lacking. The present invention relates to a new unified methodology for mechanical testing of asphalt mixture and other viscoelastic materials that improves the current practice in speed, convenience, and accuracy. A new improved specimen mounting method on Dynamic Shear Rheometer (DSR), a new recovery method for fine portion of asphalt mixture, and three new tests for the performance of recovered material using DSR is disclosed. The new methods provide performance grading of asphalt mixtures that is new to the industry and provide necessary tools for determining the effect of recycled materials on performance.
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公开(公告)号：US11860150B2
公开(公告)日：2024-01-02
申请号：US18326049
申请日：2023-05-31
发明人： Chao Wang , Guanyu Gong , Zhengyang Ren
CPC分类号： G01N33/42 , G01N3/24 , G01N3/32 , G01N2203/0025 , G01N2203/0073
摘要： A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle includes: obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; calculating an average stored pseudo strain energy QH of the asphalt according to the following formula:
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.-
公开(公告)号：US11859966B2
公开(公告)日：2024-01-02
申请号：US17240253
申请日：2021-04-26
CPC分类号： G01B21/02 , G01B21/20 , G01N9/02 , G01N21/6456 , G01N33/42 , G01N33/383 , G01N2009/024
摘要： A method for determining a characteristic of a construction material is provided. The method includes imaging the construction material and determining a characteristic of the construction material based off of the imaging.
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5.发明公开公开(公告)号：US20230384285A1
公开(公告)日：2023-11-30
申请号：US18326049
申请日：2023-05-31
发明人： Chao Wang , Guanyu Gong , Zhengyang Ren
CPC分类号： G01N33/42 , G01N3/24 , G01N3/32 , G01N2203/0073 , G01N2203/0025
摘要： A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle includes: obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; calculating an average stored pseudo strain energy QH of the asphalt according to the following
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.-
公开(公告)号：US20180188174A1
公开(公告)日：2018-07-05
申请号：US15739123
申请日：2016-06-22
发明人： Bernhard HOFKO , Markus HOSPODKA , Josef FUESSL , Lukas EBERHARDSTEINER , Hinrich GROTHE , Florian HANDLE , Daniel GROSSEGGER , Ronald BLAB
CPC分类号： G01N21/64 , G01N33/42 , G01N2021/6419 , G01N2201/061 , G01N2201/12
摘要： The invention relates to a method and to a device for determining a material property, in particular the aging state or the aging resistance, of a bitumen material, comprising the steps: applying a substantially monochromatic first excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a first fluorescence radiation, excited by the first excitation radiation, at a measurement wavelength; applying a substantially monochromatic second excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a second fluorescence radiation, excited by the second excitation radiation, at the measurement wavelength; determining a first key figure for the material property of the bitumen material from the ratio between the intensity of the second fluorescence radiation to the intensity of the first fluorescence radiation.
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公开(公告)号：US09884964B2
公开(公告)日：2018-02-06
申请号：US14299483
申请日：2014-06-09
CPC分类号： C08L95/00 , C08L2555/10 , G01N33/42 , Y02A30/333
摘要： The disclosure relates to asphalt foam collapse test methods and related apparatus for the measurement and determination of foamed asphalt binder quality, in particular warm-mix asphalt. Various asphalt binder/foam quality indicators can be measured according to the disclosure, such as bubble size distribution, bubble surface area, foam expansion ratio, foam half-life, foam index, as well as normalized parameters related to the same. The disclosed methods and apparatus permit the repeatable characterization and formation of foamed asphalt compositions, enabling the skilled artisan to form foamed asphalt/aggregate compositions of known, repeatable quality. This enhances the ability to form WMA foamed asphalt concrete with controlled and favorable properties selected for the particular environmental conditions (e.g., climate-, weather-, and/or traffic-related) where the concrete is to be used.
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公开(公告)号：US09869064B2
公开(公告)日：2018-01-16
申请号：US14785233
申请日：2013-04-18
发明人： Yukio Akashi , Kazuaki Hashimoto , Shogo Hayashi
CPC分类号： E01C23/01 , B60R1/00 , B60R2300/00 , G01B11/30 , G01C7/04 , G01N33/42 , G06T3/4038 , G06T2207/10028 , G06T2210/61 , H04N7/18
摘要： The present invention is capable of inspecting with high accuracy the shape of a road travel surface when travelling at a low speed, and even when acceleration, deceleration, or stoppages occur frequently, and generates a highly reproducible road surface longitudinal profile. A photograph is taken along the longitudinal direction of a travel path by a photography means in a light section method via a travel surface photography means (21). Corrected image information, in which a tilt in photographic image information has been corrected using inclination information, is generated on the basis of the photographic image information, the inclination information, and movement information via a road surface profile generation means (7), and thereafter the corrected image information is arranged using the movement information. Vertical motion information pertaining to the travel surface photography means is specified from image contents of overlapped regions. One portion of the corrected image information is cut out, and extracted image information is generated. While the height of the corrected image is corrected using the vertical motion information from the corrected image information, the extracted image information is arranged sequentially, and connected, and the road surface profile is generated.
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公开(公告)号：US20170322088A1
公开(公告)日：2017-11-09
申请号：US15583017
申请日：2017-05-01
发明人： Dominik BECHER , Marcus WATERMANN , David SHELSTAD
摘要： A device for determining the temperature of a road building material applied by a construction machine in a placement width includes an infrared temperature measuring head, a motor and a controller. The infrared temperature measuring head is arranged to be twistable by the motor in a manner transverse to the direction of travel of the construction machine so as to scan the surface of the road building material to capture temperature measuring values of the surface of road building material during a rotational movement at a plurality of measuring points spaced apart from one another. The controller is configured to set a scanning speed as a function of a position of the measuring point.
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公开(公告)号：US09759642B2
公开(公告)日：2017-09-12
申请号：US13936893
申请日：2013-07-08
申请人： John W. Newman
发明人： John W. Newman
CPC分类号： G01N11/00 , G01N11/06 , G01N33/26 , G01N33/42 , G01N2203/0044 , G01N2203/0094
摘要： A system and method for measuring the deformation over time of the surface of a non-Newtonian fluid in a sampling container in response to an airjet that is applied for a specified time. The change is the sample surface displacement is measured quantitatively by means of optical triangulation or other similar optical or electronic distance measuring device. After cessation of the airjet, gravitational forces cause the sample material to flow back to its original surface profile. Both the amplitude of the deformation displacement due to the force of the airjet and the recovered displacement, within specific time periods are characteristic of asphalt binder material with varying amounts of polymer or other additives used to control the ultimate properties and performance of the material. As a result, comparison of the quantitative measurements of control samples can allow discrimination from samples with different properties and hence different formulations.
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