Evaluation Procedures for Deicing Chemicals and Improved Sodium Chloride PDF Download
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Author:
Publisher:
ISBN:
Category : Deicing chemicals
Languages : en
Pages :
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Book Description
These studies defined, developed, and documented protocols for testing and evaluating deicing chemicals. A secondary component of the study investigated methods for improving the effectiveness of sodium chloride as an ice melting agent. The research included a literature reivew; established criteria for characterizing chemical deicers; and identified potential test methods for evaluating candidate deicing chemicals. Of the 62 test methods identified, 12 primary methods developed in this program specifically for chemical deicers are described in detail, and 50 supplementary standard published test methods are referenced.
Author:
Publisher:
ISBN:
Category : Deicing chemicals
Languages : en
Pages :
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Book Description
These studies defined, developed, and documented protocols for testing and evaluating deicing chemicals. A secondary component of the study investigated methods for improving the effectiveness of sodium chloride as an ice melting agent. The research included a literature reivew; established criteria for characterizing chemical deicers; and identified potential test methods for evaluating candidate deicing chemicals. Of the 62 test methods identified, 12 primary methods developed in this program specifically for chemical deicers are described in detail, and 50 supplementary standard published test methods are referenced.
Author:
Publisher:
ISBN: 9780685410172
Category :
Languages : en
Pages :
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Author: Cecil C. Chappelow
Publisher:
ISBN:
Category : Deicing chemicals
Languages : en
Pages : 59
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Book Description
This program consists of two phases. The first phase has been directed towards the development of a preliminary set of evaluation procedures based on the thermodynamic and corrosion characteristics of promising categories of potential deicer chemicals. The second phase is directed toward the development and modification of chemical deicer test methods, and the development and evaluation of improved sodium chloride. This interim report presents the research activities and findings of the phase I investigations.
Author: Michelle Akin
Publisher:
ISBN:
Category : Antifreeze solutions
Languages : en
Pages : 194
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Author: Cecil C. Chappelow
Publisher:
ISBN:
Category :
Languages : en
Pages : 358
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Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 370
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Author: Michelle Akin
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 12
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Book Description
This work aims at identifying and developing standard laboratory testing protocols that can be used to evaluate the performance of deicing chemicals, additives, and mixtures of these used on roadways and other transportation facilities. Several test methods were evaluated for the purpose of developing a promising test protocol, including a differential scanning calorimetry (DSC) thermogram test for liquid deicers, modified Strategic Highway Research Program (SHRP) ice melting test for solid and liquid deicers, modified SHRP ice penetration test for solid and liquid deicers, and a modified ice undercutting test developed by Minnesota Department of Transportation (DOT) for solid and liquid deicers. These tests shed light on the complexity and challenges in evaluating various deicers, especially the poor reliability inherent in conventional test methods. The DSC-based method was demonstrated to be very reproducible for each deicer at a given dilution ratio and cooling/heating rate, and thus may serve as a "fingerprint" tool for quality assurance of deicers. The DSC data also showed strong correlation with the modified SHRP ice melting test data, which holds the promise of establishing the DSC-based method for evaluating the performance of liquid deicers (both in terms of characteristic temperature and ice melting capacity). The modified SHRP ice melting test used in this study incorporates a control substance for reference and various indicators to determine acceptability of the data, as discussed in the paper.
Author: L. David Minsk
Publisher:
ISBN:
Category : Deicing chemicals
Languages : en
Pages : 46
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Author: Cecil C. Chappelow
Publisher:
ISBN: 9780309052672
Category : Deicing chemicals
Languages : en
Pages : 283
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Book Description
This handbook contains a structured selection of specific test methods for complete characterization of deicing chemicals. Sixty-two specific test methods are defined for the evaluation of chemical deicers in eight principal property performance areas: 1) physicochemical characteristics; 2) deicing performance; 3) compatibility with bare and coated metals in concrete; 5) compatibility with concrete and nonmetals; 6) engineering parameters; 7) ecological effects; and 8) health and safety aspects. The 62 specific chemical deicer test methods are composed of 12 primary and 50 supplementary test methods. The primary test methods, which were developed for conducting the more important evaluations, are identified as follows: 1) ice melting tests for liquid and solid deicers; 2) ice penetration tests for liquid and solid deicers; 3) ice undercutting tests for liquid and solid deicers; 4) bare metal corrosion test; 5) concrete degradation test; 6) concrete scaling test; 7) friction characterization test; 8) ecological effects tests; and 9) rebar in concrete corrosion test.
Author: Levelton Consultants
Publisher: Transportation Research Board
ISBN: 0309098807
Category : Roads
Languages : en
Pages : 211
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Book Description
