Author: Mohamad Nagi
Publisher: Transportation Research Board
ISBN: 0309098890
Category : Air-entrained concrete
Languages : en
Pages : 60
Book Description
"This report presents a recommended procedure for evaluating air-entraining admixtures used in highway concrete. The procedure involves the testing of non-air-entrained concrete and concrete containing the air-entraining admixture under simulated field conditions. Criteria are proposed for acceptance of admixtures for use in either highway pavements or structures. The recommended procedure and acceptance criteria will guide materials engineers in evaluating and selecting air-entraining admixtures that should contribute to appropriate freeze-thaw durability and thus to good performance and long service life. The content of the report will be of immediate interest to materials engineers, researchers, and others concerned with the design of concrete mixtures for use in highway pavements and structures."--taken from Foreword, page [v].
Evaluating Air-entraining Admixtures for Highway Concrete
Author: Mohamad Nagi
Publisher: Transportation Research Board
ISBN: 0309098890
Category : Air-entrained concrete
Languages : en
Pages : 60
Book Description
"This report presents a recommended procedure for evaluating air-entraining admixtures used in highway concrete. The procedure involves the testing of non-air-entrained concrete and concrete containing the air-entraining admixture under simulated field conditions. Criteria are proposed for acceptance of admixtures for use in either highway pavements or structures. The recommended procedure and acceptance criteria will guide materials engineers in evaluating and selecting air-entraining admixtures that should contribute to appropriate freeze-thaw durability and thus to good performance and long service life. The content of the report will be of immediate interest to materials engineers, researchers, and others concerned with the design of concrete mixtures for use in highway pavements and structures."--taken from Foreword, page [v].
Publisher: Transportation Research Board
ISBN: 0309098890
Category : Air-entrained concrete
Languages : en
Pages : 60
Book Description
"This report presents a recommended procedure for evaluating air-entraining admixtures used in highway concrete. The procedure involves the testing of non-air-entrained concrete and concrete containing the air-entraining admixture under simulated field conditions. Criteria are proposed for acceptance of admixtures for use in either highway pavements or structures. The recommended procedure and acceptance criteria will guide materials engineers in evaluating and selecting air-entraining admixtures that should contribute to appropriate freeze-thaw durability and thus to good performance and long service life. The content of the report will be of immediate interest to materials engineers, researchers, and others concerned with the design of concrete mixtures for use in highway pavements and structures."--taken from Foreword, page [v].
Evaluating Air-entraining Admixtures for Highway Concrete
Author: Construction Technology Laboratories (Portland Cement Association)
Publisher:
ISBN:
Category : Air-entrained concrete
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Air-entrained concrete
Languages : en
Pages :
Book Description
Procedures for Evaluating Air Entraining Admixtures for Highway Concrete
Author: Construction Technology Laboratories (Portland Cement Association)
Publisher:
ISBN:
Category : Air-entrained concrete
Languages : en
Pages : 100
Book Description
Publisher:
ISBN:
Category : Air-entrained concrete
Languages : en
Pages : 100
Book Description
Evaluation of Air-entraining Admixtures for Concrete
Author: United States. Central Concrete Laboratory, Mount Vernon, N.Y.
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 63
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 63
Book Description
Methods for Evaluating Fly Ash for Use in Highway Concrete
Author: Lawrence L. Sutter
Publisher: Transportation Research Board
ISBN: 0309283558
Category : Political Science
Languages : en
Pages : 91
Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) 749: Methods for Evaluating Fly Ash for Use in Highway Concrete presents suggested changes to coal fly ash specifications and test protocols contained in American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Transportation Materials and Methods of Sampling and Testing (AASHTO M 295). The changes suggested include modifications to the test methods currently specified for evaluating acceptability of fly ash for use in highway concrete as well as the introduction of new test methods for enhancing such evaluations. Attachment C: Details of the Research into Methods for Evaluating Fly Ash Use in Highway Concrete is only available online."--Publisher description.
Publisher: Transportation Research Board
ISBN: 0309283558
Category : Political Science
Languages : en
Pages : 91
Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) 749: Methods for Evaluating Fly Ash for Use in Highway Concrete presents suggested changes to coal fly ash specifications and test protocols contained in American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Transportation Materials and Methods of Sampling and Testing (AASHTO M 295). The changes suggested include modifications to the test methods currently specified for evaluating acceptability of fly ash for use in highway concrete as well as the introduction of new test methods for enhancing such evaluations. Attachment C: Details of the Research into Methods for Evaluating Fly Ash Use in Highway Concrete is only available online."--Publisher description.
Admixtures in Concrete
Author: National Research Council (U.S.). Highway Research Board. Committee on Chemical Additions and Admixtures for Concrete
Publisher:
ISBN:
Category : Cement
Languages : en
Pages : 60
Book Description
An admixture is any material other than water, aggregates, and hydraulic cement that is used as an ingredient of a concrete or mortar mixture and added to the batch immediately before or during mixing. 4 types of admixtures are discussed: (1) accelerators, the most common of which is calcium chloride; (2) air-entraining, to protect the concrete against the damage it may suffer if the paste becomes saturated with water and then freezes; (3) retarders and water reducers, which extend setting time 30 to 50 percent to compensate for placement temperatures, to avoid cold joints, or to avoid undesirable effects of displacements and deflections; and (4) pozzolans, which react with hydroxides to form compounds with cementitious properties, and usually produce a lower cost concrete.
Publisher:
ISBN:
Category : Cement
Languages : en
Pages : 60
Book Description
An admixture is any material other than water, aggregates, and hydraulic cement that is used as an ingredient of a concrete or mortar mixture and added to the batch immediately before or during mixing. 4 types of admixtures are discussed: (1) accelerators, the most common of which is calcium chloride; (2) air-entraining, to protect the concrete against the damage it may suffer if the paste becomes saturated with water and then freezes; (3) retarders and water reducers, which extend setting time 30 to 50 percent to compensate for placement temperatures, to avoid cold joints, or to avoid undesirable effects of displacements and deflections; and (4) pozzolans, which react with hydroxides to form compounds with cementitious properties, and usually produce a lower cost concrete.
Evaluation of Air-entraining Admixtures for Concrete
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 154
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 154
Book Description
Admixtures for Highway Concrete
Author: National Research Council (U.S.). Highway Research Board
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 175
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 175
Book Description
Public Roads
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 64
Book Description
Significance of Tests and Properties of Concrete and Concrete-Making Materials
Author: C. H. Best
Publisher: ASTM International
ISBN: 9780803106123
Category : Technology & Engineering
Languages : en
Pages : 886
Book Description
Publisher: ASTM International
ISBN: 9780803106123
Category : Technology & Engineering
Languages : en
Pages : 886
Book Description