Author: Sudharma ToyyetiPublisher:
ISBN:
Category : Bridges
Languages : en
Pages :
Book Description
Optimized Aggregate Gradation for Bridge Deck Concrete with Quartzite Aggregate
Author: Sudharma ToyyetiPublisher:
ISBN:
Category : Bridges
Languages : en
Pages :
Book Description
Optimization of Aggregate Gradation Combinations to Improve Concrete Sustainability
Author: Majella Anson-CartwrightPublisher:
ISBN: 9780494764121
Category :
Languages : en
Pages : 574
Book Description
By optimizing the packing of the combined aggregate gradations, the cement paste content needed to make concrete can be reduced, improving sustainability, cost, performance, durability, and workability. Optimization can be achieved using theoretical and empirical techniques, or waste concrete material as an intermediate size fraction. However, the potential for improvement is currently limited by prescriptive grading specifications that require meeting individual requirements for fine and coarse aggregates.From this study, using various optimization techniques, it was found that by inclusion of an intermediate sized aggregate material, a reduction in cement paste up to 16% is possible for 35 MPa and 50 MPa mix designs typically used in Ontario bridge decks. The aggregate materials used were a natural sand, and two crushed limestones of 19.0 mm and 6.7 mm maximum size. From these findings, recommendations are made for improving the current Ontario Provincial Standard Specification (OPSS) 1002 used for concrete aggregates.
Effect of Changes in Total Aggregate Gradation on Portland Cement Concrete Properties
Author: Steven M. CramerPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 56
Book Description
Effects of Special Aggregate on Bridge Deck Overlay Frictional Properties
Author: Vernon J. MarksPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 18
Book Description
An Improved Aggregate Gradation for Tennessee Portland Cement Concrete Bridge Deck Mixtures
Author: Barry Neal WhittenPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 204
Book Description
Aggregate Gradation for Highways
Author: United States. Bureau of Public RoadsPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 36
Book Description
Proceedings of the First International Conference on Recent Advances in Concrete Technology
Author: Amde M. AmdePublisher: Destech Publications
ISBN:
Category : Concrete
Languages : en
Pages : 816
Book Description
Aggregate Gradation Optimization
Author: David Newton RichardsonPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 226
Book Description
A Guide to Determining the Optimal Gradation of Concrete Aggregates
Author: Per Just AndersenPublisher:
ISBN: 9780309052689
Category : Aggregates (Building materials)
Languages : en
Pages : 200
Book Description
The proportioning of fine and coarse aggregates in the concrete mix has an important effect on the properties of both fresh and hardened concrete. This guide provides a means of determining the optimal gradation of fine and coarse aggregates for use in the concrete mix using a set of tables. The tables are based on a computer model for the theoretical packing of spherical particles which takes into account their size and specific gravity. Use of these tables in conjunction with the American Concrete Institute's ACI Standard Practice 211.1 should help produce a more workable mix, and a better consolidated hardened concrete with decreased permeability and improved durability.
Optimized Aggregates Gradations for Portland Cement Concrete Mix Designs Evaluation
Author: Wally HeyenPublisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 39
Book Description