Bio Cement The project aims at attaining high durability of concrete and gaining high strength of cement. We plan to make use of bacterial species which can hydrolyze the enzyme Urease efficiently to produce microbial concrete. Such bacterial are known to produce calcium which is useful in giving strength to cement. We are working in 2 stages. Stage 1: Here we check the effect of bacterial solution on cement mortar and along with that we check the effectiveness of the bacterial solution
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Types of Cement Rapid Hardening Portland Cement Rapid Hardening Portland Cement(RHPC) is a special purpose cement used in concrete to achieve a higher rate of early strength development‚ compared to using Normal Cement. The improved early performance of RHPC is achieved principally through increased product fineness. Typical applications of RHPC include precast concrete production‚ concrete masonry‚ urgent repair work and cold weather concreting. Extra Rapid Hardening Cement An extra rapid
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PORTLAND CEMENT Chemical composition. Portland Cement is made up of four main compounds: tricalcium silicate (3CaOSiO2)‚ dicalcium silicate (2CaOSiO2)‚ tricalcium aluminate (3CaOAl2O3)‚ and a tetra-calcium aluminoferrite (4CaO Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols‚ these compounds are designated as C3S‚ C2S‚ C3A‚ and C4AF‚ where C stands for calcium oxide (lime)‚ S for silica‚ A for alumina‚ and F for iron oxide. Small amounts of uncombined
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Market structure refers to: • Nature and degree of competition within a particular market • The number of firms producing identical products which are homogenous Oligopoly: This is a market structure in which the market is dominated by a small number of firms that together control the majority of the market share. Few firms dominate Although only a few firms dominate‚ it is possible that many small firms may also operate in the market e.g. the major airlines. It is a situation between perfect
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"Evaluate the effectiveness of this structure for the organization." Southwest Airlines is part of an oligopoly. An oligopoly is defined as an instance where there are only a small number of producers in a market; due to the small numbers‚ if one company changes their prices of their goods or services‚ the others will do the same in order to keep it competitive. Running as an oligopoly can be both helpful and painful for the consumer. For instance‚ Southwest Airlines has set prices they have
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vertical roller mill cement raw material transformed from MPS mill. MLS mill is a vertical mill‚ mainly used for grinding cement raw materials‚ can also be used for grinding other construction‚ chemical‚ ceramics and other industrial raw materials. MPS vertical roller mill have other advantages for a wide range of materials‚ particularly roller and disc liner wear resistance are higher than other types of vertical mill‚ which is widely used in Europe and the cement industry‚ the market share is
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INTRODUCTION Cement is a binder‚ a substance that sets and hardens independently‚ and can bind other materials together. The word "cement" traces to the Romans‚ who used the term opus caementicium to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives that were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum‚ cimentum‚ cäment‚ and cement. Cement is made by grinding
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The American University in Cairo Egyptian Cement Sector Market Structure Analysis Prepared by Ahmad Tarek (SID# 800091317) Haytham Tawfik (SID# 800091526) Ramy Mohamed Mahmoud (SID# 800091039) CONTENTS INTRODUCTION.....................................................................................................................................3 CEMENT INDUSTRY IN EGYPT .................................................................................................
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Monopoly and Oligopoly Essay The Main characteristics of an oligopoly are that the supply of a product or products is concentrated in the hands of a few large suppliers‚ there could be thousands of small suppliers but the market is mainly dominated by around 4 or 5 large firms. For example firms Tesco‚ Asda‚ Sainburys and Morrisons‚ these are the 4 main supermarkets in the UK but there are thousands of small corner shops who provide some of the same goods the supermarkets do. Another characteristics
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may increase their own market share at the expense of their competitors‚ but by collaborating‚ they decrease uncertainty and the firms together act as a monopoly. Collaboration When two or more oligopolies agree to fix prices or take part in anti-competitive behavior‚ they form a collusive oligopoly. They agreement can be formal or informal. A formal agreement is a cartel and is generally illegal. OPEC is a legal cartel but it’s signed between countries and not firms. In an informal agreement
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