Geopolymers are new materials for fire- and heat-resistant coatings and adhesives‚ medicinal applications‚ high-temperature ceramics‚ new binders for fire-resistant fiber composites‚ toxic and radioactive waste encapsulation and new cements for concrete. The properties and uses of geopolymers are being explored in many scientific and industrial disciplines: modern inorganic chemistry‚ physical chemistry‚ colloid chemistry‚ mineralogy‚ geology‚ and in other types of engineering process technologies
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Airline Alliances an Analysis Introduction: Liberalisation of the Airline Market now allows carriers to engage in alliances to form more powerful synergy’s and capture a larger share of the market. Since the introduction of The Airline Deregulation Act in 1978 in North America and similar acts worldwide the aviation industry has become one of the fastest growing industries. The main objective of this was to allow the market place to influence the development of airlines. The main development from
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Eight case-lets on Strategic Alliances Case 1: Telefónica and China Unicom In September 2009‚ Telefónica and China Unicom announced a partnership including cooperation in R&D‚ roaming‚ joint procurement of equipment‚ infrastructural development‚ joint development of mobile services and the provision of services to multinational clients. They also announced the purchase of US$1 billion worth of stock in each other making the Spanish operator the largest single investor in the company with 8% of
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wheels‚ wooden barrels etc. In these cases heated metal is made to just fit an object. When the metal cools it contracts and induces prestress into the object thereby strengthening it. The idea of pretensioned concrete has been around since the late 19th century‚ but its use was limited by the quality of materials available at the time. It wasn’t until the 1920s that materials of a suitable quality were available in sufficient quantity to allow pretensioned concrete to be used with confidence. The pioneers
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soil Vegetation Tool Kit for Engineers 4.10/ P/ 2 Non Structural cracks: Moisture Changes Building materials expand on absorbing moisture and shrink on drying. These are generally reversible. Shrinkage in concrete or mortar depends on a number of factors • Cement concrete: Richer the mix greater is the drying shrinkage. • Water content: More water in mix induces greater shrinkage • Aggregates : Large aggregates with good grading has less shrinkage for same workability as less water
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Strategic Alliance Business Policy and Strategy MAN6721 February 24‚ 2013 Abstract For this assignment the team was asked to write a paper with regard to companies who form strategic alliances and cooperative partnerships to complement their own strategic initiatives and strengthen their competitiveness in domestic and international markets. Strategic cooperation is a much-favored approach in industries where new technological developments are occurring at a furious pace. The team was asked
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POLYMER COCNCRETE 1. Introduction Despite being thought of as a modern material‚ concrete has been in use for hundreds of years. The word concrete comes from the Latin concretus‚ which means “mixed together” or compounded. Concrete is an extremely popular structural material due to its low cost and easy fabrication. Concrete is made up of sand or stone‚ known as aggregate‚ combined with cement paste to bind it. Aggregate can be of various sizes. It is broadly categorized as fine (commonly
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www.jntuworld.com www.android.jntuworld.com www.jwjobs.net Code No: R31013 R10 Set No: 1 III B.Tech. I Semester Regular Examinations‚ November/December - 2012 CONCRETE TECHNOLOGY (Civil Engineering) Time: 3 Hours Max Marks: 75 Answer any FIVE Questions All Questions carry equal marks ***** Assume missing data suitably 1. (a) Describe the oxide composition of Ordinary Portland Cement. (b) What are the main compounds into which the above oxides will transform in the process of fusion
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Musique Concrete Music has existed since the beginning of time‚ evolving and changing with the times and culture. From monks chanting to the Beatles in the 1960’s‚ there is a long line of the evolution of music. The existence of musique concrete was another step in the world’s music history. But before going any further perhaps the definition of musique concrete should be specified. “ Musique concrete is the name given to a class of electronic music produced from editing together fragments of
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placed in a cube and allowed to dry forming the concrete testing cube. Each of the four blocks containing different compositions of each material were then placed in a compressive testing machine and when each cube yielded‚ results were taken. Effect of water content on workability of fresh concrete: As more water was added to the dry mixture‚ it became easier to work with but we had to be careful not to add to much water or this would weaken the concrete and possible ruin the mixture. If you wanted
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