Waste Materials Used In Concrete Manufacturing

Author: Satish Chandra
Editor: Elsevier
ISBN: 0815519516
File Size: 55,99 MB
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The environmental aspects involved in the production and use of cement, concrete and other building materials are of growing importance. CO2 emissions are 0.8-1.3 ton/ton of cement production in dry process. SO2 emission is also very high, but is dependent upon the type of fuel used. Energy consumption is also very high at 100-150 KWT/ton of cement produced. It is costly to erect new cement plants. Substitution of waste materials will conserve dwindling resources, and will avoid the environmental and ecological damages caused by quarrying and exploitation of the raw materials for making cement. To some extent, it will help to solve the problem otherwise encountered in disposing of the wastes. Partial replacement of clinker or portland cement by slag, fly ash, silica fume and natural rock minerals illustrates these aspects. Partial replacement by natural materials that require little or no processing, such as pozzolans, calcined clays, etc., saves energy and decreases emission of gases. The output of waste materials suitable as cement replacement (slags, fly ashes, silica fumes, rice husk ash, etc.) is more than double that of cement production. These waste materials can partly be used, or processed, to produce materials suitable as aggregates or fillers in concrete. These can also be used as clinker raw materials, or processed into cementing systems. New grinding and mixing technology will make the use of these secondary materials simpler. Developments in chemical admixtures: superplasticizers, air entraining agents, etc., help in controlling production techniques and, in achieving the desired properties in concrete. Use of waste products is not only a partial solution to environmental and ecological problems; it significantly improves the microstructure, and consequently the durability properties of concrete, which are difficult to achieve by the use of pure portland cement. The aim is not only to make the cements and concrete less expensive, but to provide a blend of tailored properties of waste materials and portland cements suitable for specified purpose. This requires a better understanding of chemistry, and materials science. There is an increasing demand for better understanding of material properties, as well as better control of the microstructure developing in the construction material, to increase durability. The combination of different binders and modifiers to produce cheaper and more durable building materials will solve to some extent the ecological and environmental problems.

Waste Materials And By Products In Concrete

Author: Rafat Siddique
Editor: Springer Science & Business Media
ISBN: 3540742948
File Size: 48,59 MB
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The amount and variety of waste that humanity dumps in landfill sites is nothing short of a scandal, believes Rafat Siddique, of Deemed University in Patiala, India. Instead, we ought to be building new homes out of it! Siddique shows in this important book that many non-hazardous waste materials and by-products which are landfilled, can in fact be used in making concrete and similar construction materials.

Waste Materials In Construction

Author: G.R. Woolley
Editor: Elsevier
ISBN: 9780080543659
File Size: 13,44 MB
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This volume presents the proceedings of the International Conference on The Science and Engineering of Recycling for Environmental Protection (WASCON 2000), of which a number of themes have been identified. All are inter-related and inter-dependent in so far as potential users of secondary, recovered or recycled material have to be assured that the material is environmentally safe and stable. It is the environmental challenge that forms a leading theme for the conference, and the themes of quality assurance and quality control support this aspect. In terms of use of 'recovered' materials, science and engineering play important and inter-dependent roles and this is reflected in themes which form the very core of the conference. Of no less importance is control of land contamination and how we propose to model for the long term impact of our aims. However dutiful and competent our ideas and studies, there has to be a measure of control and the role of legislation forms the final theme of WASCON 2000. The breadth of studies being undertaken world-wide and the innovative ideas that are expressed in papers submitted are worthy of this important subject. It is also interesting to note that papers were offered from 30 countries, a sign of the increasing awareness of the need to preserve our natural resources and utilize to the full those with which we are more familiar. This book will contribute to the understanding of and solution of environmental problems concerning the re-use of waste materials in construction.

Self Compacting Concrete Materials Properties And Applications

Author: Rafat Siddique
Editor: Woodhead Publishing
ISBN: 012817370X
File Size: 15,11 MB
Format: PDF
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Self-Compacting Concrete: Materials, Properties and Applications presents the latest research on various aspects of self-compacting concrete, including test methods, rheology, strength and durability properties, SCC properties at elevated temperature, SC manufacturing with the use of SCMs, recycled aggregates and industrial by-products. Written by an international group of contributors who are closely associated with the development of self-compacting concrete, the book explores the main differences between SCC and normal concrete in terms of raw materials, fresh properties and hardened properties. Other topics discussed include the structure and practical applications of fiber reinforced SCC. Researchers and experienced engineers will find this reference to be a systematic source to SCC with its accounting of the latest breakthroughs in the field and discussions of SCC constructability, structural integrity, improved flows into complex forms, and superior strength and durability. Offers a systematic and comprehensive source of information on the latest developments in SCC technology Includes mix design procedures, tests standards, rheology, strength and durability properties Explores the properties and practical applications of SCC

Use Of Waste Materials And By Products In Road Construction

Author: Organisation for Economic Co-operation and Development
Editor: Organisation for Economic Co-operation and Development ; [Washington, D.C. : sold by OECD Publications Center]
ISBN:
File Size: 63,35 MB
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Synthesis Of Highway Practice

Author: National Cooperative Highway Research Program
Editor:
ISBN:
File Size: 25,80 MB
Format: PDF, Mobi
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Synergistic Use Of Milled Waste Glass And Recycled Aggregate Towards A Sustainable Concrete Based Infrastructure

Author: Roz-Ud-Din Nassar
Editor:
ISBN:
File Size: 76,64 MB
Format: PDF
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Catalog Of Superfund Program Information Products

Author: United States. Environmental Protection Agency. Office of Emergency and Remedial Response
Editor:
ISBN:
File Size: 29,51 MB
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Recycling Of Reactive And Reinforcing By Products In Concrete Construction

Author: Abdulrahman M. Alhozaimy
Editor:
ISBN:
File Size: 49,19 MB
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Proceedings Of The Mineral Waste Utilization Symposium

Author:
Editor:
ISBN:
File Size: 58,36 MB
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Utilization Of Waste Materials In Civil Engineering Construction

Author: Hilary I. Inyang
Editor: Amer Society of Civil Engineers
ISBN:
File Size: 30,53 MB
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Technical Appendix To Nchrp Synthesis Of Highway Practice 199

Author:
Editor:
ISBN:
File Size: 37,17 MB
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The Indian Concrete Journal

Author:
Editor:
ISBN:
File Size: 54,66 MB
Format: PDF, ePub
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Fly Ash Silica Fume Slag Other Mineral By Products In Concrete

Author:
Editor:
ISBN:
File Size: 62,37 MB
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Concrete Science

Author: Vangipuram Seshachar Ramachandran
Editor:
ISBN:
File Size: 19,77 MB
Format: PDF, Docs
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Concrete

Author: Harvey Whipple
Editor:
ISBN:
File Size: 23,98 MB
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Use Of Waste Materials In Hot Mix Asphalt

Author: H. Fred Waller
Editor: ASTM International
ISBN: 9780803118812
File Size: 68,51 MB
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In light of requirements that rubber be mixed with any asphalt used in projects receiving federal aid beginning in 1994, and the general increase in the problem of what to do with waste material, 17 papers from a December 1992 symposium in Miami discuss some of the technical and economic considerati

Advances In Cement And Concrete

Author: Engineering Foundation (U.S.). Conference
Editor: Amer Society of Civil Engineers
ISBN:
File Size: 14,34 MB
Format: PDF, Kindle
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This collection contains 43 papers on the use of cement and concrete presented at of an Engineering Foundation Conference, held in Durham, New Hampshire, July 24-29, 1994.