Kylie Schluter English 218 Professor Renfrow November 12‚ 2010 Word Count: 968 “Concrete Angel” “Concrete Angel” is a song written by Rob Crosby and Stephanie Bentley. This song was sung by Martina McBride and released in 2002. This song can be looked at as a poem with a lot of meaning behind it. A little girl who was abused violently tries to hide the scars and bruises but still managed to deal with the pain. Taking a look behind the words of this poem will help readers understand how the
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Strength of concrete Chapter 6 Properties of concrete :- Strength Durability Impermeability Volume stability Strength of concrete is the most valuable property. What is strength? Strength depends on the physical structure and volume of hydration products. Therefore it gives an idea of the quality of concrete. Note :- strength depends less on the chemical composition of the paste and more on the physical structure
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Alliance Concrete Executive Summary The economy in which the read-mix industry operates may have a potential slowdown. Despite Alliance’s success and potential growth‚ the company is facing with a difficult decision to choose between renegotiating debt obligations‚ postponing long overdue capital improvement‚ or reducing the dividend payment to National. Being a ready-mix concrete company‚ Alliance’s obligation is to have their product deliver to the customers on time. However‚ the main issue
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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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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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past on these test is in th e following two points: 1. Difficulties in molding (Getting good specimens). 2. Large variability of test results. It is important that the resul tant mixture (Cement + sand + water) has the same properties as concrete. So the standard sand was chosen and the following properties were determined to it: 1. Consist of pure siliceous material. 2. The particles are nearly spherical shaped. 3. The size of its particles is smaller than 0.85mm (Pass through 15
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PRESTRESSED CONCRETE The development of early cracks in reinforced concrete due to incompatibility in the strains of steel & concrete was perhaps the starting point in the development of new material like “Prestressed Concrete”. Prestressed Concrete is a method for overcoming concrete’s natural weakness in tension. INTRODUCTION Prestressed Concrete is basically concrete in which internal stresses of suitable magnitude & distribution are
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THE EARLY DEVELOPMENTAL HISTORY OF CONCRETE BLOCK IN AMERICA A THESIS SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE MASTER OF SCIENCE IN HISTORIC PRESERVATION BY JAMES P. HALL CHAIRED BY ASSOCIATE PROFESSOR DUNCAN C. CAMPBELL‚ MSHP BALL STATE UNIVERSITY MUNCIE‚ INDIANA APRIL 2009 2 THE DEVELOPMENTAL HISTORY OF CONCRETE BLOCK IN AMERICA A THESIS SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENETS For the degree MASTER
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High Volume Fly Ash Concrete(HVFC) INTRODUCTION Concrete is the most commonly used construction material; its usage by the communities across the globe is second only to water. Customarily‚ concrete is produced by using the Ordinary Portland Cement (OPC) as the binder. The usage of OPC is on the increase to meet infrastructure developments. The world-wide demand for OPC would increase further in the future. It is well-known that cement production depletes significant amount of natural resources
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7166M01.qxd_lb 6/3/09 09:38 AM Page 1 1 BASIC CONCEPTS 1.1 INTRODUCTION Concrete is strong in compression‚ but weak in tension: its tensile strength varies from 8 to 14 percent of its compressive strength. Due to such a low tensile capacity‚ flexural cracks develop at early stages of loading. In order to reduce or prevent such cracks from developing‚ a concentric or eccentric force is imposed in the longitudinal direction of the structural element. This force prevents the cracks
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