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Author: Mustaque Hossain
Publisher:
ISBN:
Category : Aggregates (Building materials).
Languages : en
Pages : 78
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Book Description
A prototype device, the Kansas Water-Cement Ratio Meter, has been developed that can measure the water-cement ratio of a plastic concrete mix. The method was based on the measurement of the turbidity of the water-cement slurry separated out of a concrete mixture by pressure sieving. This study was undertaken to improve the meter and to do a sensitivity analysis.
Author: Mustaque Hossain
Publisher:
ISBN:
Category : Aggregates (Building materials).
Languages : en
Pages : 78
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Book Description
A prototype device, the Kansas Water-Cement Ratio Meter, has been developed that can measure the water-cement ratio of a plastic concrete mix. The method was based on the measurement of the turbidity of the water-cement slurry separated out of a concrete mixture by pressure sieving. This study was undertaken to improve the meter and to do a sensitivity analysis.
Author: Carina Santos
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 70
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Book Description
Author: Carina Santos
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Book Description
Author: Masaki Kitazume
Publisher: CRC Press
ISBN: 0203589637
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
The Deep Mixing Method (DMM), a deep in-situ soil stabilization technique using cement and/or lime as a stabilizing agent, was developed in Japan and in the Nordic countries independently in the 1970s. Numerous research efforts have been made in these areas investigating properties of treated soil, behavior of DMM improved ground under static and d
Author: Robert L. Lytton
Publisher: Strategic Highway Research Program (Shrp)
ISBN: 9780309056175
Category : Asphalt concrete
Languages : en
Pages : 500
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Book Description
A result of the Strategic Highway Research Program's asphalt research is the development of performance-based specifications for asphalt binders and mixtures to control 3 distress modes: rutting; fatigue cracking; and thermal cracking. The SHRP A-005 project developed detailed pavement performance models to support these binder and mixture specifications and performance-based mixture designs. This report documents the findings of this extensive research effort and provides supporting data for the performance-based specifications and mixture design procedure called SUPERPAVE. The A-005 contract developed and used a sophisticated, mechanistic-based pavement performance model to define the relationships between asphalt binder and mixture properties and pavement distress. A comprehensive pavement performance model was developed that predicts the amount of fatigue cracking, thermal cracking and rutting in asphalt concrete pavements with time, using results from the accelerated laboratory tests. The pavement performance models for each distress were also used to confirm the relevant binder and mixture properties established by other SHRP contractors. The model has 3 parts: a mixture evaluation model; a pavement response model; and a pavement distress model.
Author: Donald J. Janssen
Publisher: Strategic Highway Research Program (Shrp)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 228
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Book Description
This study, aimed at improving the freeze-thaw resistance of concrete, consists of three parts. Part I evaluates parameters affecting the freeze-thaw durability of concrete. A modification of the existing standard of method for determining the durability factor of concrete specimens is proposed, and a new procedure for fundamental transverse frequency (used in durability factor calculations) has been developed. Part II focuses on developing better methods for identifying nondurable aggregates, and has resulted in a rapid new test based on the hydraulic fracture of aggregates. Part III describes field experiments to evaluate the freeze-thaw resistance of a number of specified concrete mixes and the use of sealants to mitigate D-cracking. Preliminary field performance results are presented.
Author: John Jewett Henry
Publisher: Transportation Research Board
ISBN: 9780309068741
Category : Technology & Engineering
Languages : en
Pages : 76
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Book Description
This synthesis report will be of interest to pavement design, construction, management, and research engineers, highway safety officials, and others concerned with pavement friction characteristics. It describes the current state of the practice and discusses the methods used for evaluating wet pavement friction characteristics of new and restored pavements. This synthesis reviews models used for measuring and evaluating friction and texture, causes for friction changes over time, and aggregate and mix design to provide adequate friction. Also presented are construction and surface restoration practices for providing good pavement surface characteristics. In addition, considerations of noise and ride quality are discussed when compromise may be required.
Author: Robert Otto Rasmussen
Publisher: Transportation Research Board
ISBN: 0309070198
Category : Pavements
Languages : en
Pages : 96
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 338: Thin and Ultra-Thin Whitetopping summarizes available information to document how state departments of transportation and others are currently using thin and ultra-thin whitetopping overlays among various pavement rehabilitation alternatives. The report covers all stages of the proper application of whitetopping overlays, including project selection, design, materials selection, construction, maintenance, and eventual rehabilitation or replacement.
Author:
Publisher:
ISBN:
Category : Electronic book
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 360
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Book Description
