Author: Steven M. CramerPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 56
Book Description
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
Evaluation of PCC Long-term Durability Using Intermediate Sized Gravels to Optimize Mix Gradations
Author: Todd D. HansonPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 34
Book Description
With the implementation of the 2000 Q-MC specification, an incentive is provided to produce an optimized gradation to improve placement characteristics. Also, specifications for slip-formed barrier rail have changed to require an optimized gradation. Generally, these optimized gradations have been achieved by blending an intermediate aggregate with the coarse and fine aggregate. The demand for this intermediate aggregate has been satisfied by using crushed limestone chips developed from the crushing of the parent concrete stone. The availability, cost, and physical limitations of crushed limestone chips can be a concern. A viable option in addressing these concerns is the use of gravel as the intermediate aggregate. Unfortunately, gravels of Class 31 durability are limited to a small geographic area in Mississippi river sands north of the Rock River. Class 3 or Class 2 durability gravels are more widely available across the state. The durability classification of gravels is based on the amount and quality of the carbonate fraction of the material. At present, no service histories or research exists to assess the impact of using Class 3 or 2 durability gravels would have on the long-term durability of Portland cement concrete (PCC) pavement requiring Class 31 aggregate.
Guide for Concrete Floor and Slab Construction
Author: ACI Committee 302Publisher: American Concrete Institute
ISBN: 0870311514
Category : Concrete construction
Languages : en
Pages : 81
Book Description
Pavement Life-Cycle Assessment
Author: Imad L. Al-QadiPublisher: CRC Press
ISBN: 1351659219
Category : Technology & Engineering
Languages : en
Pages : 298
Book Description
An increasing number of agencies, academic institutes, and governmental and industrial bodies are embracing the principles of sustainability in managing their activities and conducting business. Pavement Life-Cycle Assessment contains contributions to the Pavement Life-Cycle Assessment Symposium 2017 (Champaign, IL, USA, 12-13 April 2017) and discusses the current status of as well as future developments for LCA implementation in project- and network-level applications. The papers cover a wide variety of topics: - Recent developments for the regional inventory databases for materials, construction, and maintenance and rehabilitation life-cycle stages and critical challenges - Review of methodological choices and impact on LCA results - Use of LCA in decision making for project selection - Implementation of case studies and lessons learned: agency perspectives - Integration of LCA into pavement management systems (PMS) - Project-level LCA implementation case studies - Network-level LCA applications and critical challenges - Use-phase rolling resistance models and field validation - Uncertainty assessment in all life-cycle stages - Role of PCR and EPDs in the implementation of LCA Pavement Life-Cycle Assessment will be of interest to academics, professionals, and policymakers involved or interested in Highway and Airport Pavements.
10th PhD Symposium in Quebec Canada
Author: FIB – International Federation for Structural ConcretePublisher: FIB - Féd. Int. du Béton
ISBN: 2980676225
Category : Technology & Engineering
Languages : en
Pages : 650
Book Description
Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete
Author: Leandro F. M. SanchezPublisher: Springer Nature
ISBN: 3031594193
Category :
Languages : en
Pages : 701
Book Description
Aggregate Gradation Optimization
Author: David Newton RichardsonPublisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 226
Book Description
Durability and Sustainability of Concrete
Author: Nausherwan HasanPublisher: Springer Nature
ISBN: 3030515737
Category : Technology & Engineering
Languages : en
Pages : 241
Book Description
This book provides practicing engineers with a step by step approach for making durable concrete with optimum use of the local materials available within the various regions of the United States. It further includes actual concrete mixture proportions for high performance concrete for strength and durability under various aggressive environments based on the author’s experience in the field, and support this with illustrative case studies. Examples for concrete mixture proportions, based on the current industry practice and standards, are highlighted to assist engineers in meeting the intended performance requirements (for specific environment conditions) for durable concrete. Covering an important topic for the construction and building materials industries, this book delivers the most up-to-date industry practices and advances in concrete construction from the perspective of a practicing engineer with over 40 year experience. Maximizes practicing engineers’ understanding of best design and construction practices in fabricating, delivery, and installation of concrete, consistent with current knowledge on concrete durability Discusses quality control and testing requirements during design and construction, including mixing, production, and placement of concrete and tolerances for slump and air content Emphasizes real-world examples of optimal concrete mixtures, suitable for selected service conditions and applications, based on prior successful records of projects within the US Addresses the role of innovative admixtures in concrete placement in cold weather conditions below 32F and meeting the strength and durability requirements Serves as a valuable resource for students in graduate programs
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