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Waste Materials Used in Concrete Manufacturing

Waste Materials Used in Concrete Manufacturing
Author: Satish Chandra
Publisher: Elsevier
Total Pages: 673
Release: 1996-12-31
Genre: Science
ISBN: 0815519516

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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.


Pozzolanic and Cementitious Materials

Pozzolanic and Cementitious Materials
Author: V.M. Malhotra
Publisher: CRC Press
Total Pages: 204
Release: 2004-11-11
Genre: Architecture
ISBN: 1482296764

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This volume provides an overview of the mineral admixtures used in concrete, including silica fume, slag, rice-husk ash, fly ash and natural pozzolans. It also includes the mineral/chemical composition of the admixtures, their chemical reactions with cement and as a method of recycling.


Waste Materials and By-Products in Concrete

Waste Materials and By-Products in Concrete
Author: Rafat Siddique
Publisher: Springer Science & Business Media
Total Pages: 422
Release: 2007-11-13
Genre: Technology & Engineering
ISBN: 3540742948

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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.


Supplementary Cementing Materials

Supplementary Cementing Materials
Author: Rafat Siddique
Publisher: Springer Science & Business Media
Total Pages: 297
Release: 2011-03-28
Genre: Technology & Engineering
ISBN: 3642178669

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This book is an attempt to consolidate the published research related to the use of Supplementary Cementing Materials in cement and concrete. It comprises of five chapters. Each chapter is devoted to a particular supplementing cementing material. It is based on the literature/research findings published in journals/conference proceeding, etc. Topics covered in the book are; coal fly ash, silica fume (SF), granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA). Each chapter contains introduction, properties of the waste material/by-product, its potential usage, and its effect on the properties of fresh and hardened concrete and other cement based materials.


Manufacture of Value Added Products from Rice Husk (Hull) and Rice Husk Ash (RHA)(2nd Revised Edition)

Manufacture of Value Added Products from Rice Husk (Hull) and Rice Husk Ash (RHA)(2nd Revised Edition)
Author: NPCS Board of Consultants & Engineers
Publisher: NIIR PROJECT CONSULTANCY SERVICES
Total Pages: 212
Release: 2018-09-06
Genre: Cooking
ISBN: 9381039801

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Manufacture of Value Added Products from Rice Husk (Hull) and Rice Husk Ash (RHA) (Precipitated Silica, Activated Carbon, Cement, Electricity, Ethanol, Hardboard, Oxalic Acid, Paper, Particle Board, Rice Husk Briquettes, Rice Husk Pellet, Silicon, Sodium Silicate Projects) Rice husk is the outermost layer of protection encasing a rice grain. Rice husk was largely considered a waste product that was often burned or dumped on landfills. Many ways are being thought for disposal of rice husk and only a small quantity of rice husk is used in agricultural field as a fertilizer, or as bedding and for stabilisation of soils. Therefore, the use of rice husk as rice husk ash is one of the most viable solution. The husk can be used for poultry farming, composting or burning. In the case of burning, it has been used as biomass to power reactors to generate thermal or electrical energy. India is a major rice producing country and the husk generated during milling is mostly used as a fuel in the boilers for processing paddy, producing energy through direct combustion and / or by gasification. The rice husk ash causes more environmental pollution and its disposal becomes a problem, hence requires attention regarding its disposal and its reuse. The ash is mainly composed of carbon and silica due to which it is used to manufacture different value added products. This book provides thorough information to utilize RHA with process pathway for economically valuable products. This handbook explains manufacturing process with flow diagrams of various value added products from rice husk & rice husk ash, photographs of plant & machinery with supplier’s contact details and sample plant layout & process flow sheets. The major contents of the book are rice husk, rice husk ash RHA), precipitated silica from rice husk ash, activated carbon from rice husk, cement from rice husk ash, electricity from rice husk, ethanol from rice husk, hardboard from rice husk, oxalic acid from rice husk, paper from rice husk, particle board from rice husk, rice husk briquettes, rice husk pellet, silicon from rice husk, sodium silicate from rice husk, packaging. This book will be a mile stone for the entrepreneurs, existing units, professionals, libraries and others interested in recovery of value added products from rice husk (rice hull) & rice husk ash to explore an economic way for recycle and reuse of agricultural waste. TAGS How to Manufacture Rice Husk based Products, Forming Products from Rice Husk, Rice Husk Ash Fuel & Powder Value Added Products, Rice Husk based Products, How to Produce Rice Husk based Products, Rice Husk (Hull), Rice Husk as a by-Product, How to Earn Money from Rice Husk Ash, Profitable Project Investment Opportunity in by-Product from Rice Husk Ash Rice Husk (Hull), Value Added Products From Rice Husk or Rice Hull Ash, Rice Husk Products, Rice Husk Product Production, Making of Rice Husk in India, Rice Husk Ash, Rice husk as a by-product, Rice Husk ash fuel, Use of Rice Husk Ash, Manufacturing of Rice Husk Ash, Study on properties of rice husk ash and its use, Projects on Rice Husk, Rice Hull, Rice Husk Ash, Properties and Industrial Applications of Rice husk, Rice Husk Production, Manufacturing of Products form rice hull, Potential of Rice Husk, Utilization of Rice Husk and their Ash in Product Manufacturing, Projects on Rice Husk, Projects on Rice Hull, Investment Opportunities in Manufacturing of Rice Husk, How to make Rice Husk Ash, Rice Husk Ash Production Process, RHA, Rice Husk Grinding, Rice Husk Granulation, Energy From Rice Husk, Projects on Rice Husk Products, Rice Husk and Powder, Rice Husk Production, Process of Manufacture of Products from Rice Husk Ash and Rice Hull, How to Make Rice Husk, Rice Husk Ash Making, Forming Products from Rice Hull


RICE HUSK ASH INFLUENCE IN CEMENT CONCRETE

RICE HUSK ASH INFLUENCE IN CEMENT CONCRETE
Author: Dr. Chandan Kumar Patnaikuni & Dr. Malleswara Rao Palli
Publisher: Lulu Publication
Total Pages: 181
Release: 2021-06-14
Genre: Art
ISBN: 1667110853

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INTRODUCTION In the pursuit of developing new comforts and luxuries the greedy modern man is unintentionally got entangled into several environmental problems. Once the solar energy arrives on the earth, the earth’s surface heats up and begins to emit terrestrial radiation back into the atmosphere. As carbon dioxide, water vapour, methane, nitrous oxide, ozone, chlorofluorocarbons (CFC’s) and some other minor gases are nearly opaque, they obstruct or trap the outgoing terrestrial radiation or heat and makes the globe warmer than it be otherwise [John Houghton, 1997].


Rice-husk Ash Cements

Rice-husk Ash Cements
Author: Organisation des Nations Unies pour le développement industriel
Publisher:
Total Pages: 100
Release: 1984
Genre:
ISBN:

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Emerging Trends in Civil Engineering

Emerging Trends in Civil Engineering
Author: K. Ganesh Babu
Publisher: Springer Nature
Total Pages: 393
Release: 2020-01-11
Genre: Technology & Engineering
ISBN: 9811514046

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This book comprises select papers from the International Conference on Emerging Trends in Civil Engineering (ICETCE 2018). Latest research findings in different branches of civil engineering such as structural engineering, construction materials, geotechnical engineering, water resources engineering, environmental engineering, and transportation infrastructure are covered in this book. The book also gives an overview of emerging topics like smart materials and structures, green building technologies, and intelligent transportation system. The contents of this book will be beneficial for students, academicians, industrialists and researchers working in the field of civil engineering.


Rice-husk Ash Cements

Rice-husk Ash Cements
Author: David J. Cook
Publisher: Vienna : United Nations Industrial Development Organization
Total Pages: 118
Release: 1984
Genre: Cement
ISBN:

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Proceedings of the Sustainable Concrete Materials and Structures in Construction 2020

Proceedings of the Sustainable Concrete Materials and Structures in Construction 2020
Author: Sharifah Salwa Mohd Zuki
Publisher: Springer Nature
Total Pages: 273
Release:
Genre: Building
ISBN: 981162187X

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This book gathers a selection of peer-reviewed papers presented at the Sustainable Concrete Materials and Structures in Construction 2020, held at Universiti Tun Hussein Onn Malaysia, Malaysia, on 24th August 2020. The contributions, prepared by international scientists and engineers, cover the latest advances in and innovative applications with the theme Towards Sustainable Green Concrete The articles in this book cater to academics, graduate students, researchers, as well as industrial practitioners working in the areas of concrete materials and building construction.