Author: Sidney Diamond
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 288
Book Description
Chemical Admixtures for Highway Concrete
Author: Sidney Diamond
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 288
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 288
Book Description
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].
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.
Chemical Admixtures for Concrete
Author: Sandra Senft
Publisher: CRC Press
ISBN: 0203017242
Category : Architecture
Languages : en
Pages : 456
Book Description
Chemical admixtures are used in concrete mixtures to produce particular engineering properties such as rapid hardening, water-proofing or resistance to cold. Chemical Admixtures for Concrete surveys recent developments in admixture technology, explaining the mechanisms by which admixtures produce their effects, the various types of admixtures avail
Publisher: CRC Press
ISBN: 0203017242
Category : Architecture
Languages : en
Pages : 456
Book Description
Chemical admixtures are used in concrete mixtures to produce particular engineering properties such as rapid hardening, water-proofing or resistance to cold. Chemical Admixtures for Concrete surveys recent developments in admixture technology, explaining the mechanisms by which admixtures produce their effects, the various types of admixtures avail
Use of Accelerators in Highway Concrete
Author: National Research Council (U.S.). Committee on Chemical Additions and Admixtures for Concrete
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 17
Book Description
A review is presented of the use of accelerators in concrete when decreased setting time or increased rate of strength development is desired. An accelerating admixture is defined as a material that is used for the purpose of accelerating the setting and strength development of concrete. These admixtures are useful, particularly in cold weather, for modifying the properties of portland cement to: (1) expedite the start of finishing operations and, when necessary, the application of insulation, (2) reduce the period of time required for proper curing, especially in the late fall paving where early application of de-icing salts may be expected, and (3) permit earlier loading or opening of pavements and structures to traffic.
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 17
Book Description
A review is presented of the use of accelerators in concrete when decreased setting time or increased rate of strength development is desired. An accelerating admixture is defined as a material that is used for the purpose of accelerating the setting and strength development of concrete. These admixtures are useful, particularly in cold weather, for modifying the properties of portland cement to: (1) expedite the start of finishing operations and, when necessary, the application of insulation, (2) reduce the period of time required for proper curing, especially in the late fall paving where early application of de-icing salts may be expected, and (3) permit earlier loading or opening of pavements and structures to traffic.
Instructions and Check-list for Practical Field Use and Control of Chemical Admixtures in Concrete
Author: American Concrete Paving Association. Technical Subcommittee on Admixtures
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 20
Book Description
Use of Water-reducing, Retarding and Water Reducing and Retarding Admixtures in Highway Concrete
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 13
Book Description
The use in highway construction of chemical admixtures is reported. These admixtures are used to modify the properties of fresh and hardened concrete, such as to increase fluidity and working qualities of a given mixture without increase in water content, delay setting, increase strength or decrease the cost. The admixtures are classified chemically and the effects on fresh and hardened concrete are presented.
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 13
Book Description
The use in highway construction of chemical admixtures is reported. These admixtures are used to modify the properties of fresh and hardened concrete, such as to increase fluidity and working qualities of a given mixture without increase in water content, delay setting, increase strength or decrease the cost. The admixtures are classified chemically and the effects on fresh and hardened concrete are presented.
Application of Admixtures in Concrete
Author: A.M. Paillere
Publisher: CRC Press
ISBN: 0203626397
Category : Architecture
Languages : en
Pages : 140
Book Description
This book provides a thorough review of the properties and use of the principal chemical admixtures for use in concrete. Concise and clearly presented, the book includes extensive references to key sources of information. The presentation of each admixture is in a standard format, which helps the reader to find relevant information easily.
Publisher: CRC Press
ISBN: 0203626397
Category : Architecture
Languages : en
Pages : 140
Book Description
This book provides a thorough review of the properties and use of the principal chemical admixtures for use in concrete. Concise and clearly presented, the book includes extensive references to key sources of information. The presentation of each admixture is in a standard format, which helps the reader to find relevant information easily.
Concrete Admixtures
Author: V.H. Dodson
Publisher: Springer Science & Business Media
ISBN: 1475748434
Category : Technology & Engineering
Languages : en
Pages : 218
Book Description
Publisher: Springer Science & Business Media
ISBN: 1475748434
Category : Technology & Engineering
Languages : en
Pages : 218
Book Description
Chemical Admixtures for Concrete
Author: ACI Committee 212
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 40
Book Description