I am doing an MS thesis about magnetic effects of water on concrete strength and consistency. There is a lack of sources about this issue. I need much more papers and reports. So if anyone dealing with this issue or have documents about it, please share with me.
I am not sure if there is a ebook of The New Concrete( written by Mario Collepardi). It is a very useful book. If it can be found as pdf, it will be great.
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Whether you're an apprentice in the piping trades or a seasoned tradesperson, you'll find this completely revised and updated guide has answers to the questions you'll encounter on the job.
Get current, concise facts on
* Metrics and conversions
* Tungsten inert gas welding and arc welding
* Steam heating, hot water, refrigeration, and air conditioning systems
* Grooved end/plain end piping systems
* Process piping using plastics
* Automatic fire protection systems
* Terms, BTU fuel values, abbreviations, angle calculations, and more
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Editorial Reviews
From the Back Cover
This little book is big on answers
Whether you’re an apprentice in the piping trades or a seasoned tradesperson, you’ll find this completely revised and updated guide has answers to the questions you’ll encounter on the job.
Get current, concise facts on
Metrics and conversions
Tungsten inert gas welding and arc welding
Steam heating, hot water, refrigeration, and air conditioning systems
Grooved end/plain end piping systems
Process piping using plastics
Automatic fire protection systems
Terms, BTU fuel values, abbreviations, angle calculations, and more
About the Author
Charles N. McConnell has been a member of the United Association of Journeymen and Apprentices of the Plumbing, Pipefitting, Sprinkler Fitting Industry of the United States and Canada for over 60 years and has trained many apprentices to the piping trades. He has supervised and installed gas and oil-fired steam and hot-water heating systems and air conditioning installations at Purdue University, Lafayette, Indiana, and plumbing installations in schools, public buildings, and manufacturing facilities. He has supervised and installed process piping installations. He is the author of Home Plumbing Handbook (Delmar Education), the three volume Plumbers and Pipefitters Library (Macmillan), and other books related to the plumbing and pipefitting trades.
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A text book on welding and cutting metals by the oxyacetylene process-3rd edition
Author: Front Cover Vulcan Process Co, Charles Herbert Burrows | Size: 7 MB | Format:PDF | Quality:Scanner | Publisher: Vulcan Process Co., | Year: 1915 | pages: 156
Contents
Figure Page
2
The use of the oxyacetylene flame
4
Chemistry
11
Physics
25
Metals and their Properties
35
Acetylene Generators
44
Regulators and Indicators
58
Vulcan automatic acetylene generator
61
Method of beveling thick pieces 71
91
3940 Effects of expansion and contraction
92
The melting rod should not
97
Circular movement of torch for work of medium thickness
98
Side to side movement of the torch for heavier welds
99
Position of torch for filling holes
100
Crank shaft on V blocks prepared for welding
107
Auto cylinder prepared for welding
108
Vulcan generator welding plant
63
Interior of Vulcan generator
65
Vulcan portable generator plant
67
Operating Plants
68
Welding table
75
Combination welding table
76
Oxygen valve on oxygen drum slowly
78
Removable base for oxygen drum
79
Portable plant using dissolved acetylene
82
Portable generator plant
84
Convenient time card
86
Welding Rods and Fluxes 68
87
3435 Practical method of beveling thin pieces
90
Cutting
110
Cutting machine
113
Cutting machine
114
Cutting floor beams
115
Cutting old boiler
116
Cutting old boiler
117
Boiler and Sheet Metal Work
118
Examples of Expansion
121
Deformation caused by expansion
122
Good and bad 61 Examples of prepared joints
123
Carbon Uurning
126
Carbon burner at work
127
Fabricating a bosh jacket
133
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Author: B I Medovar (Author), V Ya Saenko (Author), G M Grigorenko (Author), Yu M Pomarin (Author), V I Kumysh (Author) | Size: 6 MB | Format:PDF | Quality:Original preprint | Publisher: Cambridge International Science Publishi | Year: 1997 | pages: 160 | ISBN: 1898326215-978-1898326212
The book describes the method of remelting consumable electrodes with an electric are burning between the surface of a liquid slag bath and a consumable electrode in a water-cooled copper mould. The method combines the possibilities of treatment of liquid metal with the electric arc in the gas atmosphere and the liquid slag and the advantages of plasma-arc and electro slag remelting. The technological possibilities, design features of melting systems and results of experimental and industrial melting trials of steels and alloys are described. In addition to remelting structural steels, special attention is given to the possibility of alloying the metal with nitrogen from the gas phase, without using expensive nitrogen-bearing nonmetallic compounds, e.g. silicon nitride. It is shown that arc slag remelting can also be used efficiently in producing ingots of titanium and its alloys. The results obtained in this method are compared with electro slag remelting and plasma arc remelting. Data on energy consumption and metal quality are also presented.
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Product Description
While residual stress can be a problem in many industries and lead to early failure of component, it can also be introduced deliberately to improve lifetimes. Knowledge of the residual stress state in a component can be critical for quality control of surface engineering processes or vital to performing an accurate assessment of component life under fatigue loading.
Neutron and synchrotron X-ray diffraction have emerged as leading techniques for stress analysis, as they can penetrate many millimetres or centimetres into components, allowing nondestructive measurement of the internal strains. Both methods require the use of costly facility-based equipment, but great advantages are obtained from the ability to probe the stress state deep below a specimen's surface.
Analysis of Residual Stress by Diffraction Using Neutron and Synchrotron Radiation gives an overview of the principles of these techniques and examples of their applications to a range of materials and engineering problems. It contains 20 chapter contributed by leading international experts in residual stress analysis, who explore the theoretical basis of stress analysis by diffraction methods, the practical implementation of the methods, and examples of key applications. The applications discussed include the determination of internal stresses in weldments, in composite materials, following shot peening, and in ceramics.
This book will be useful for engineers and scientists who work in any field where residual stresses are of importance, and for anyone involved with the application of neutron or synchrotron radiation for stress management. As the techniques become a basic component of the measurement toolkit for stress analysis, an appreciation of the practicalities and limitations of these methods in practice will be important throughout a range of engineering and scientific fields.
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If you have anything to do with residual stresses and their consequences, this book is for you. Lots of examples of residual stress problems, and the leading methods available to measure them. A series of detailed articles on the methods, their application, and a range of problems where the methods have been applied.
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Alloying Liquid Metal with Nitrogen from Electric ARC Plasma
Author: V I Lakomskii (Author) | Size: 7 MB | Format:PDF | Quality:Original preprint | Publisher: Cambridge International Science Publishi | Year: 1999 | pages: 223 | ISBN: 1898326533-978-1898326533
In the monograph, the author summarises the results obtained in research and investigations of the gas-liquid metal system at temperatures typical of electric arc welding and electrometallurgy processes. Special attention is given to the problems of sorption of diatomic homonuclear gases, especially nitrogen from electric arc plasma, by metal melts. It is shown that when the metal absorbs the gas from plasma the system does not reach the thermodynamic equilibrium state. Investigations were carried out into processes taking place in the gas-plasma layer bordering with the metal. These processes determine the gas content of liquid steel.
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Book Description
Advanced welding processes provides an excellent introductory review of the range of welding technologies available to the structural and mechanical engineer. The book begins by discussing general topics such power sources, filler materials and gases used in advanced welding. A central group of chapters then assesses the main welding techniques: gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), high energy density processes and narrow-gap welding techniques. Two final chapters review process control, automation and robotics. Advanced welding processes is an invaluable guide to selecting the best welding technology for mechanical and structural engineers.
About the Author
John Norrish is Professor of Materials Welding and Joining at the University of Wollongong, Australia.
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