Author: National Research Council (U.S.). Highway Research Board. Committee on Correlation of Density and Stability Tests of Bituminous Mixtures with Service Behavior
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 50
Book Description
Density, Absorption, and Specific Gravity Tests of Aggregates, Bituminous Materials, Bituminous Mixtures, and Surfaces: Annotated
Author: National Research Council (U.S.). Highway Research Board. Committee on Correlation of Density and Stability Tests of Bituminous Mixtures with Service Behavior
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 50
Book Description
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 50
Book Description
Density, Absorption and Specific Gravity Tests of Aggregates, Bituminous Mixtures and Surfaces
Author: National Research Council (U.S.). Highway Research Board
Publisher:
ISBN:
Category : Bituminous materials
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category : Bituminous materials
Languages : en
Pages : 30
Book Description
Density, Absorption, and Specific Gravity Tests of Aggregates, Bituminous Materials, Bituminous Mixtures, and Surfaces: Annotated
Author: National Research Council (U.S.). Highway Research Board
Publisher:
ISBN:
Category : Bituminous materials
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Bituminous materials
Languages : en
Pages : 20
Book Description
Density, Absorption and Specific Gravity Tests of Aggregates, Bituminous Materials, Bituminous Mixtures and Surfaces
Author: National Research Council (U.S.). Highway Research Board
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Symposium on Specific Gravity of Bituminous Coated Agregates
Author: American Society for Testing Materials
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 88
Book Description
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 88
Book Description
Maximum Specific Gravity of Bituminous Mixtures by Vacuum Saturation Procedure
Author: James M. Rice
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 19
Book Description
The laboratory of the National Crushed Stone Assn. has long been concerned with the specific gravity of aggregates for bituminous mixtures. About ten years ago, a limited study was undertaken in which four samples of coarse aggregate were coated with asphalt by dipping. The results indicated that the aggregates absorbed some asphalt, but the asphalt absorption was less than water absorption. Therefore, neither the bulk nor the apparent specific gravity values of the aggregate were applicable for computing the theoretical maximum density of a bituminous mix. In 1951, experiments were begun with the direct measurement of voids in compacted specimens by use of an air meter such as is used for measuring entrained air in concrete (1). While the equipment used was not particularly suited for this application, the results were encouraging. Still we were not completely satisfied with this procedure because there was always some doubt that all of the voids were being measured. The vacuum saturation procedure was first used in connection with the air meter tests on compacted specimens. This test was performed with the air meter chamber filled with water; thus, there was a possibility that the test specimen was absorbing some water while the equipment was being prepared. In order to minimize this source of error, specimens were initially saturated with water after evacuation of air. With porous mixtures it was found that this procedure filled practically all of the measurable voids.
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 19
Book Description
The laboratory of the National Crushed Stone Assn. has long been concerned with the specific gravity of aggregates for bituminous mixtures. About ten years ago, a limited study was undertaken in which four samples of coarse aggregate were coated with asphalt by dipping. The results indicated that the aggregates absorbed some asphalt, but the asphalt absorption was less than water absorption. Therefore, neither the bulk nor the apparent specific gravity values of the aggregate were applicable for computing the theoretical maximum density of a bituminous mix. In 1951, experiments were begun with the direct measurement of voids in compacted specimens by use of an air meter such as is used for measuring entrained air in concrete (1). While the equipment used was not particularly suited for this application, the results were encouraging. Still we were not completely satisfied with this procedure because there was always some doubt that all of the voids were being measured. The vacuum saturation procedure was first used in connection with the air meter tests on compacted specimens. This test was performed with the air meter chamber filled with water; thus, there was a possibility that the test specimen was absorbing some water while the equipment was being prepared. In order to minimize this source of error, specimens were initially saturated with water after evacuation of air. With porous mixtures it was found that this procedure filled practically all of the measurable voids.
Manual of Test Procedures for Materials
Author: Illinois. Division of Highways. Bureau of Materials and Physical Research
Publisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 964
Book Description
Publisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 964
Book Description
An Index of U.S. Voluntary Engineering Standards
Author: William J. Slattery
Publisher:
ISBN:
Category : Standards, Engineering
Languages : en
Pages : 1016
Book Description
Publisher:
ISBN:
Category : Standards, Engineering
Languages : en
Pages : 1016
Book Description
Biennial Report - Highway Commission
Author: Wisconsin. State Highway Commission
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 304
Book Description
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 304
Book Description