Aggregates

Aggregates PDF Author: Mick R. Smith
Publisher: Geological Society of America
ISBN:
Category : Science
Languages : en
Pages : 368

Get Book Here

Book Description

Aggregates

Aggregates PDF Author: Mick R. Smith
Publisher: Geological Society of America
ISBN:
Category : Science
Languages : en
Pages : 368

Get Book Here

Book Description


The Aggregates Handbook, Second Edition

The Aggregates Handbook, Second Edition PDF Author: National Stone, Sand & Gravel Association
Publisher:
ISBN: 9780988995000
Category : Aggregate industry
Languages : en
Pages :

Get Book Here

Book Description


Alkali-aggregate Reaction in Concrete Roads and Bridges

Alkali-aggregate Reaction in Concrete Roads and Bridges PDF Author: Graham West
Publisher: Thomas Telford
ISBN: 9780727720696
Category : Technology & Engineering
Languages : en
Pages : 182

Get Book Here

Book Description
This book provides a sound understanding of the alkali-aggregate reaction and how it affects the design, construction and maintenance of concrete roads and bridges. It draws on examples from the UK and around the world to relate experience of damage caused by this reaction and how the problems have been investigated and treated.

Classification of Recycled Sands and Their Applications as Aggregates for Concrete and Bituminous Mixtures

Classification of Recycled Sands and Their Applications as Aggregates for Concrete and Bituminous Mixtures PDF Author: Mahmoud Solyman
Publisher: kassel university press GmbH
ISBN: 3899582187
Category : Aggregates (Building materials)
Languages : en
Pages : 214

Get Book Here

Book Description


The Effect of the Physical and Chemical Characteristics of the Aggregate on Bonding

The Effect of the Physical and Chemical Characteristics of the Aggregate on Bonding PDF Author: A. R. Tarrer
Publisher:
ISBN:
Category : Aggregates (Building materials).
Languages : en
Pages : 36

Get Book Here

Book Description


The Structural Integrity of Recycled Aggregate Concrete Produced With Fillers and Pozzolans

The Structural Integrity of Recycled Aggregate Concrete Produced With Fillers and Pozzolans PDF Author: Paul O. Awoyera
Publisher: Woodhead Publishing
ISBN: 0128241063
Category : Technology & Engineering
Languages : en
Pages : 499

Get Book Here

Book Description
The Structural Integrity of Recycled Aggregate Concrete Produced with Fillers and Pozzolans presents a review on the use of by-products, fillers and pozzolanic materials in the development of concrete, with an emphasis on structural integrity. The volume is broken down into key sections, including a review of the types of materials that are used as latent hydraulic supplements, fillers and pozzolans for making recycled aggregate concrete, rheology and hydration phenomenon, the mechanical and microscale nature of concrete, and the impact of fillers and pozzolans on the workability of concrete with case studies. Durability and strength development are also discussed. The final section looks at issues such as performance effect, LCA, environmental impact, sustainability and cost benefit analysis. With detailed case studies throughout, this volume will provide useful information for all stakeholders involved in the built environment, including materials scientists, civil engineers, builders, architects and policymakers. - Identifies several potential by-products, fillers and pozzolans for the development of durable concrete - Acts as a guidebook for constructors and researchers working in the broad field of material science, engineering and in-situ application - Presents the durability properties of concrete made of by-products, fillers and pozzolans

Application of LADAR in the Analysis of Aggregate Characteristics

Application of LADAR in the Analysis of Aggregate Characteristics PDF Author: Linbing Wang
Publisher: Transportation Research Board
ISBN: 0309258456
Category : Technology & Engineering
Languages : en
Pages : 97

Get Book Here

Book Description
"NCHRP Project 4-34, 'Application of LADAR in the Analysis of Aggregate Characteristics,' was conducted by Virginia Polytechnic Institute and State University, Blacksburg, Virginia, with participation by the University of Illinois at Urbana-Champaign. The objective of the project was to develop and evaluate a laser detection and ranging (LADAR) system capable of precise and accurate measurement of the aggregate characteristics of shape, volume, angularity, surface texture, specific surface area, and volumetric gradation. Ideally, the final system would be applicable to aggregate in three size categories--coarse (2 in. to #4), fine (#4 to #200), and microfine (P200)--and suitable for routine use in research, central, and field laboratories for Portland cement concrete and asphalt concrete mixture design and quality assurance. The project, which developed new equipment and computer algorithms, proved technically challenging. The project team developed a prototype Fourier transform interferometry (FTI) system with fully functional hardware and software. The system can characterize aggregate shape, angularity, texture, surface area, and volume of a wide range of aggregate sizes with high accuracy. Assembly and operation of the FTI system consisting of a chargecoupled device (CD) camera, a fringe source, a sample platform, and a software package are fully documented in the report. The accuracy and precision of the prototype FTI system are comparable to or better than those of other systems now available to automatically measure aggregate characteristics, but its current range of aggregate size--3/4 in. to #50--is narrower than desired. Extending this size range is possible in the future by using a CCD camera with a larger field of view and increasing the system resolution through appropriate selection of the equipment components."

Lightweight Aggregate Concrete

Lightweight Aggregate Concrete PDF Author: Satish Chandra
Publisher: Elsevier
ISBN: 081551820X
Category : Technology & Engineering
Languages : en
Pages : 451

Get Book Here

Book Description
In spite of the increasing use and demand for lightweight aggregate concrete (LWAC), there is still a lack of adequate explanations to understand the mechanisms responsible for the strength and durability properties of LWAC. This book is written to give an overall picture of LWAC, from the historical background, aggregate production, proportioning and production of concrete, to applications in structures. Physical properties and chemical durability are described in detail. The physical properties include density, strength, shrinkage, and elasticity. Chemical durability includes resistance to acids, chloride ingress, carbonation, and freeze-thaw resistance. Fire resistance is also included, which is seldom considered, but is a very important aspect of the safety of the structure. Microstructure development and its relation to the durability properties of LWAC generally are not highlighted in the literature. The development of bonds, the microstructure with different binder systems, and different types of lightweight aggregates are explained. They show how lightweight aggregate concrete differs from normal weight concrete. The chapters on chloride ingress and freeze-thaw resistance are detailed because of the use of LWAC in offshore construction. The economical aspects of using LWAC are also reviewed. Emphasis is placed on the fact that although the cost of LWAC is high, the total cost of construction has to be considered, including the cost of transport, reinforcement, etc. When these are considered then LWAC becomes cheaper and attractive. The life cycle cost of the concrete is another consideration for calculating long-term savings on maintenance costs.

Recycled Aggregate Concrete

Recycled Aggregate Concrete PDF Author: Natt Makul
Publisher: CRC Press
ISBN: 1000864715
Category : Technology & Engineering
Languages : en
Pages : 421

Get Book Here

Book Description
Recycled Aggregate Concrete (RAC) as a sustainable material is gaining increasing importance in the construction industry. This book discusses properties, specifications, and applications of RAC and offers readers insight into current research and advances in the development and utilization of RAC. It shares information gathered about concretes that use RCA (Recycled Concrete Aggregate, a component of RAC), as well as findings and conclusions. This book: • Presents principles of RAC, including theories and experiments • Describes advanced behavior and properties • Covers specifications and codes • Highlights best practices • Summarizes the use of RAC in sustainable concrete construction • Features scientific findings, citations of reliable sources, conclusions, and recommendations that ensure the book is accessible to various levels of expertise This book will be useful for researchers, concrete scientists, technologists, practicing engineers, and advanced students interested in reusing construction waste for sustainable construction practices; it will help them strive toward meeting the UN Sustainable Development Goals (SDGs).

Aggregate Resources

Aggregate Resources PDF Author: P.T. Bobrowsky
Publisher: CRC Press
ISBN: 1000099946
Category : Technology & Engineering
Languages : en
Pages : 479

Get Book Here

Book Description
Aggregate Resources provides a comprehensive collection of 27 diverse scientific papers on aggregate topics, such as geology of deposits, geophysical exploration techniques, deposit prediction and modeling, land-use case studies, production values and trends, geotechnical properties, legislation politics and others. This diversity in subject matter is further enhanced by relying on contributions from a number of countries including Australia, Belgium, Canada, Lebanon, the Netherlands, Norway, South Africa, the United Kingdom and the United States. The range of topical papers and representative countries, coupled with the global significance of the resources prompted the title Aggregate Resources: A global perspective. The book will appeal to all those involved with aggregate resources: geologists, producers, technicians , construction engineers, developers, land-use planners, legislators, academics and the public consumer, especially since all of us are in some manner, directly dependent or indirectly affected by this resource. *Each chapter is a study on a particular area of importance for aggregate producers. Pit & Quarry, April 1998.