Potential Uses of Sonic and Ultrasonic Devices in Highway Construction PDF Download
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Author: Fred Moavenzadeh
Publisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 60
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Book Description
Experiments to determine the applicability of vibrational energy to the preparation and evaluation of highway materials are described, and recommendations have been made for measures needed to advance the art.
Author: Fred Moavenzadeh
Publisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 60
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Book Description
Experiments to determine the applicability of vibrational energy to the preparation and evaluation of highway materials are described, and recommendations have been made for measures needed to advance the art.
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 434
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Book Description
Issues for 1963- include section: Urban transportation research digest.
Author: Bolt, Beranek, and Newman
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 840
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Book Description
Various methods of assessing noise, loudness, and noise annoyance are reviewed and explained; sources, types, and intensities of traffic noise are noted; typical means of abatement and attenuation are described; design criteria for various land uses ranging from low-density to industrial are suggested and compared with the results of previous BBN and British systems for predicting annoyance and complaint; and a design guide for predicting traffic noise, capable of being programmed for batch and on-line computer applications, is presented in form suitable for use as a working tool. A flow diagram describes the interrelationships of elements in the traffic noise prediction methodology, and each element is discussed in detail in the text. The text is presented of a tape recording that takes the listener through a series of traffic situations, with such variables as traffic distance, flow velocity, distance, outdoors and indoors, and presence or absence of absorbers and attenuators.
Author: John D. Keane
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 80
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Book Description
A current state-of-the-art survey is presented with regard to painting of highway structural steel. A thorough literature review was conducted and an inspection and evaluation made of more than 4,000 paint exposure tests. Paint film thickness measurement studies were made. Specific recommendations are given for selecting typical paint systems on the basis of six environmental zones, which represent the range of severity of environment in which highway steel structures are located in the United States. Model specifications are suggested for surface preparation, application, material procurement, and paint system.
Author: International Road Federation
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 484
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Book Description
Author: S. D. Howkins
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 106
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Book Description
The feasibility is investigated of various acoustic (sonic), nuclear, and electrical techniques for nondestructive measurement of Portland cement and bituminous concrete pavement thickness both during and after construction. Recommendations are made for equipment development and field testing of three specific methods that could potentially result in such measurements with the desired degree of speed and accuracy.
Author: National Cooperative Highway Research Program
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 212
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Book Description
Author: United States. Congress. House. Committee on Ways and Means. Subcommittee on Oversight
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 528
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Book Description
Author: Robin P. Gardner
Publisher:
ISBN:
Category : Radioactive gages
Languages : en
Pages : 56
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Book Description
Sources of error that have been identified on the gamma-ray soil density gauge are: (1) sensitivity to local density variations, especially at the soil surface, (2) sensitivity to soil composition, and (3) inaccurate calibration techniques. An attempt was made to solve these problems by developing for each gauge calibration models that enable stable and homogenous non-soil standards to be used for calibration. Calibration standards and calibration models for each gauge were found and tested. In the process of developing and testing the new nuclear gauge calibration model, the dual-gauge principal of compensating these gauges for variations in soil composition was discovered. The air-gap method of using this principal is explained and was optimized by using the calibration model developed in the current study.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Book Description
