As we every one is familiar with modulus of elasticity of steel that is 29000ksi. Categories Civil Engineering Articles, Civil Engineering Articles for Mobile, Concrete Technology, Mechanics, PowerPoint Presentations, Structural Engineering Tags astm, compressive strength, modulus of elasticity, poisson ratio, young's modulus Post navigation But the BS110 has provided bases to satisfy new expressions for estimating the elastic modulus based on the work of Teychenne, to conform to the Stress-strain relationship of concrete such that: Ec28 = Ko + 0.2fcu28 BS8110, Ec28 = 5.5cu28 /áµ) and Et /Ec28 = 0.4 + 0.6ft /f28 where, Ec28 = concrete elastic modulus at 28 days. The IS 456 of 2000 gives the Modulus of elasticity as E C = 5000 fck where E C is the short term static modulus of elasticity in N/mm2. REINFORCED CONCRETE Slide No. Coefficient of thermal expansion, = 10 x 10 -6 per oC 53 Fatigue behaviour of Cement Concrete Because concrete shows the characteristic of rate dependent, it can be represented as Kelvin viscoelastic model. presentations for free. If 5 pcf of this is allowed for the steel and w is taken as 145 pcf then: Ef 57,000 'c Concrete Material Properties Effect of voids in concrete on modulus of elasticity, compressive strength, and flexural strength CIVL 1101 Introduction to Concrete 5/10 σ, ε … The modulus of elasticity of concrete is relatively constant at low stress levels but starts decreasing at higher stress levels as matrix cracking develops. Ec = Modulus of elasticity of concrete. Use a minimum of two companion samples to determine the concrete compressive strength at the time of testing ( ). The modulus of elasticity of concrete, in general, refers to the ratio of the applied stress on the concrete to the strain-induced. The elastisitymodulus or E-modulus is a property of a material (like concrete or steel) whichs tells how much tension is needed to make it a little bit longer or shorter (when you pull at 2 ends of a steal beam it’ll be a bit longer then when you press it together). Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Correct mix. Any concrete or masonry wall that supports more ... A REVIEW OF SHOTCRETE MATERIALS, MIX DESIGN AND APPLICATIONS, - University of Cape Town Concrete Materials and Structural Integrity Research Group A REVIEW OF SHOTCRETE MATERIALS, MIX DESIGN AND APPLICATIONS, StressStrain Relationship the constant G is called the shear modulus and relates the shear stress an. Undergraduate Civil Engineering. Elasticity, Creep and Shrinkage ! Modulus of Elasticity of Concrete of Different strengths In this study, focus is on the modulus of elasticity for concrete with superabsorbent polymers (SAP). Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete … Now customize the name of a clipboard to store your clips. TYPES OF MODULI OF ELASTICITY. ... shear strain, g = angle of deformation (radians) shear modulus, G = t /g (elastic region) ... - Title: Normal Stress (1.1-1.5) Author: heeter Last modified by: Yun Jing Created Date: 1/9/2007 12:05:30 AM Document presentation format: On-screen Show (4:3). Concrete creep is defined as: deformation of structure under sustained load. On the one hand, the decrease in the modulus of elasticity when rubber aggregates are used can be logically justified by the well established fact that the modulus of elasticity of a concrete depends on the modulus of elasticity of the aggregates and on their volumetric proportion in … Modulus of Elasticity of Concrete. Creep does not necessarily cause concrete to fail or break apart. With the in- creased use of lightweight aggregates for structural con- crete a better understanding of the relationship between weight, strength, and the elastic modulus is needed. ... of Metals. Spring thread. – Size or Diameter of the bar or wire. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Modulus of elasticity of concrete […] Curling or cracking ... - Design of Concrete Structure I Eng. Units of elastic modulus are followings: In SI unit MPa or N/mm 2 or KN/m 2. Tamer Eshtawi First Semester 2008 * * Lecture 2 Concrete Property Concrete Concrete is a mixture of cement, fine and coarse ... - STRUCTURAL DYNAMICS IN BULDING CODES Reinforced concrete lateral Force Resisting Structural System * Bearing Wall. The PowerPoint PPT presentation: "Modulus of Elasticity and Poisson Ratio of Concrete" is the property of its rightful owner. On the one hand, the decrease in the modulus of elasticity when rubber aggregates are used can be logically justified by the well established fact that the modulus of elasticity of a concrete depends on the modulus of elasticity of the aggregates and … Determination of modulus of elasticity of Concrete Testing of cube or cylinder in uni-axial compression test. It follows that the two materials are best The construction industry has taken considerable, High Strength Concrete (HSC) and generally Higher, To gain additional knowledge on property of. In recent years building specifications have even required a specific elastic modulus of concrete … In this article, let us learn about modulus of elasticity along with examples. 1 lectures accompanying the book: solid state physics: an. Basically, long term pressure or stress on concrete can make it change shape. 5.3.5. longitudinal stress Young s modulus longitudinal strain / / F A FL Y L L A L 2 lb : Pa in. – Size or Diameter of the bar or wire. CHAPTER 4. Units of Elastic Modulus. Modulus of Elasticity of Concrete can be defined as the slope of the line drawn from stress of zero to a compressive stress of 0.45f’c. Use a pi tape to measure the sample diameter () and subsequently calculate the length-to-diameter ratio (⁄) and cross-sectional area (). Find values for the Young’s Modulus and Poisson’s ratio from the data. Units or 22. In FPS unit psi or ksi or psf or ksf. Scribd is the world's largest social reading and publishing site. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. 3 ENCE 454 ©Assakkaf Steel is a high-cost material compared with concrete. The elastic modulus of concrete is an important parameter in reinforced concrete design and analysis. Modulus of elasticity of concrete(Ec) is defined as the ratio of the applied stress to the corresponding strain. Cap all end bearing surfaces of specimens, Place an attached strain gauges and capped, From our data results, figure 7, the specimen 6, Neglect number 6 of our specimen and take an. Assuming that the deformation is entirely elastic, calculate the elastic modulus of the steel EM204 Material Science 15 E 3 10 1 O L 2 6 / 10 223 m N A F O t GPa m N E 223 / 10 223 2 9 In other words, it reflects the ability of concrete to deflect elastically. This video shows how to find the modulus of elasticity of concrete. - Where there is isotropy in a single plane, then. Specially designed for mechanical engineers. Shoiab Ikhlaq Introduction While the American Society for Testing and Materials (ASTM) continues to provide working standards for the concrete industry, definitive values for the material’s elastic behavior are not able to be reported due to the heterogeneous nature of concrete After you enable Flash, refresh this page and the presentation should play. Byoungsok Shin. And they’re ready for you to use in your PowerPoint presentations the moment you need them. The objectives of this study are to investigate the relationship between static and dynamic elastic moduli determined using shear-wave velocity measurements and to demonstrate the practical potential of the shear-wave velocity method for in situ dynamic modulus evaluation. Calculation Procedures Young’s Modulus – E=(s 1-s 2)/(e 2-.000005) s 1 =the stress corresponding to the longitudinal strain of 50 micro strain. Modulus of elasticity of concrete increases approximately with the square root of the strength. Factors affecting modulus of elasticity of concrete. Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. The main factors which may affect the values determination of modulus of elasticity are, ACI 318–08, (Normal weight concrete) the modulus of elasticity of concrete is , Ec =4700 √f’c Mpa and; IS:456 the modulus of elasticity of concrete is 5000√f’c, MPa. Properly affixing strain gauges. Engr. - Modulus of Elasticity and Poisson Ratio of Concrete. The test for determining the modulus of elasticity of the concrete is known as a compression test on the cylindrical concrete sample. Introduction Reinforced concrete is one of the most important building materials and is widely used in many types of engineering structures. Nonlinear elasticity. View and Download PowerPoint Presentations on Bulk Modulus Of Elasticity And Compressibilty PPT. 3 ENCE 454 ©Assakkaf Steel is a high-cost material compared with concrete. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Modulus of elasticity is the measure of the stress–strain relationship on the object. Modulus Of Elasticity And Poisson Ratio Of Concrete PPT. The modulus of elasticity of HVNP concrete made with a zeolitic natural pozzolan is somewhat lower than that of the control concrete made with the same w/cm ratio (Uzal, 2007).However, it is known that the modulus of elasticity of HVFA concrete is higher than that of Portland cement concrete with comparable … In other words there is no fixed value for the ratio of stress divided by strain. If so, share your PPT presentation slides online with PowerShow.com. If so, share your PPT presentation slides online with PowerShow.com. The modulus of elasticity for aluminum is 70 GPa and for streel is 200 GPa. ATTACHMENTS & ACCESSORIES FOR CONCRETE COMPRESSION MACHINES. - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Ca = Seismic coefficient based on soil profiled and Aa ... - Mech422 - Stress and Strain Analysis - F2002. High modulus of elasticity for high rise structures | giatec scientific. Calculate the theoretical values the Young’s Modulus and Poisson’s ratio. Find Poisson’s Ratio of Concrete. Chapter 16 composites. The value of modulus of elasticity of wet specimen is found higher from 3 to 4 GPa (3.2 to 4.3 x 10 4 kg/cm 2) than dry specimen i.e., the modulus of elasticity of wet concrete is higher by 16.3% to 7.5 according to its compressive strength. With the in- creased use of lightweight aggregates for structural con- crete a better understanding of the relationship between weight, strength, and the elastic modulus is needed. The ratios of PET fiber range from 0.5% - 1.5%. PowerShow.com is a leading presentation/slideshow sharing website. As concrete is a heterogeneous material. Upper components are attached to machines by a locking stem system. - Definition of normal stress (axial stress) Definition of normal strain Poisson s ratio Definition of shear stress Definition of shear strain Tensile Testing Stress ... - Transverse cracking (% of slabs cracked) is modelled as a function of cumulative ... 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