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. – Young’s Modulus (Modulus of Elasticity), E – Yield Strength, f y – Ultimate Strength, f u – Steel Grade Designation. The initial tangent modulus E c in N/mm 2 is estimated from k c c f E 5000 = (1.2) where f ck = characteristic compressive strength of concrete at 28 days The initial tangent modulus E c is also known as short term static modulus of elasticity of concrete in N/mm 2 and is used to calculate the elastic deflections. Standardardized test of concrete. The elastic modulus of hardened cement paste is around 10 to 30 GPa and that of aggregate is between 45 to 85 GPa. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Bulk Modulus Of Elasticity And Compressibilty PPT MEASURING THE MODULUS OF ELASTICITY OF CONCRETE CORES AND CYLINDERS Rev. strength concrete (greater than 6.0 ks i), compute the modu lus of elasticity with the ACI 363 equation below: Ec = 1265 ∙ ¥f'c + 1000 (where f’c and Ec are in ksi) For all other pretensioned and post-tensioned elements, compute the modulus of elasticity using AASHTO LRFD … The elastic modulus of normalweight concrete is higher than lightweight concrete because the moduli of the normalweight aggregate particles are greater than the moduli of lightweight aggregate particles. Modulus of elasticity is the measure of the stress–strain relationship on the object. • For granites and limestone the modulus of elasticity in compression is in the range 2,000,000 – 7,000,000 psi. Modulus of elasticity of concrete increases approximately with the square root of the strength. Seismology and the ... Could anisotropy help in understanding mantle flow processes? Ca = Seismic coefficient based on soil profiled and Aa ... - Mech422 - Stress and Strain Analysis - F2002. Introduction Reinforced concrete is one of the most important building materials and is widely used in many types of engineering structures. 0 3 5.3.4. TYPES OF MODULI OF ELASTICITY. presentations for free. As we every one is familiar with modulus of elasticity of steel that is 29000ksi. According to our textbook, the … - 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 ... Transverse joint spalling is the cracking or breaking of the edge of the slab up ... - ... 200-300 kPa (long term) Plastic ... excavation is ensured by anchors and reinforced shotcrete The definitive cavern is sustained by a concrete ... - Deformation experiments rocks and deformation Deformation experiments Experiments are carried out in steel pressure vessels. Elastic modulus is a fundamental parameter in designing concrete structures. Engr. Because concrete shows the characteristic of rate dependent, it can be represented as Kelvin viscoelastic model. 5.1. PowerShow.com is a leading presentation/slideshow sharing website. And they’re ready for you to use in your PowerPoint presentations the moment you need them. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. Lange, A.J. 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 … That's all free as well! – Young’s Modulus (Modulus of Elasticity), E – Yield Strength, f y – Ultimate Strength, f u – Steel Grade Designation. 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. Many of them are also animated. Modulus of elasticity – typically 1-4 GPa (2-6 million psi) The flexural strength or modulus of rupture of concrete is used to design pavements and other slabs on ground. Modulus of elasticity of concrete […] Determination of modulus of elasticity of Concrete Testing of cube or cylinder in uni-axial compression test. ... 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). – Size or Diameter of the bar or wire. View and Download PowerPoint Presentations on Bulk Modulus Of Elasticity And Compressibilty PPT. Modulus of Elasticity and. Three hundred 150 by 300 mm concrete cylinders were prepared from three different mixtures with target compressive strengths of 30, 35, and 40 MPa. K m no. Byoungsok Shin. Specially designed for mechanical engineers. 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 … To view this presentation, you'll need to allow Flash. CHAPTER 4. Planar isotropy = 5 ... Isotropy means. Units or 22. Looks like you’ve clipped this slide to already. 3 ENCE 454 ©Assakkaf Steel is a high-cost material compared with concrete. - Modulus of Elasticity and Poisson Ratio of Concrete. ... of Metals Mechanical Properties Stiffness - Elastic Modulus or Young s Modulus (MPa) Strength - Yield, Ultimate ... - ... tOFsOTsOOpOOSOOtOOFOd OdFOFdFtdOSdOsdd ddtdFdOdfFdeTOtdtFftfFfOfdtfFfTfftfe TfOf ... O fddf f ef d f e ffef n n n n n n nn n C ... Z.C. The paper presents the Modulus of Elasticity of recycle aggregate concrete reinforced with low strength steel fibers. Do you have PowerPoint slides to share? 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. Calculate the theoretical values the Young’s Modulus and Poisson’s ratio. The test for determining the modulus of elasticity of the concrete is known as a compression test on the cylindrical concrete sample. 1. Curling or cracking ... - Design of Concrete Structure I Eng. See our Privacy Policy and User Agreement for details. In the experimental work the recycle aggregate is used in place of natural aggregate in the proportion of 0,25,50,75 and 100% with and without incorporation of steel fibers. American Society for Testing and Materials (ASTM) Specifications include . Uni-axial Stress State. Objective ... - Material Properties Material Types Unbound (soil) Natural (i.e., subgrade) Select (i.e., subbase, base) Asphalt concrete Portland cement concrete Stabilized materials ... - ... in particular at advanced age. B. Uzal, in Eco-Efficient Concrete, 2013. ATTACHMENTS & ACCESSORIES FOR CONCRETE COMPRESSION MACHINES. Scribd is the world's largest social reading and publishing site. Modulus of Elasticity of Concrete We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. The weight density of reinforced concrete using normal aggregates is about 150 lb/ft3 (pcf). concrete cylinders. CrystalGraphics 3D Character Slides for PowerPoint, - CrystalGraphics 3D Character Slides for PowerPoint. Lecture 01 stress, strain and elasticity, Elastic behaviour of Springs and Mass on a spring, No public clipboards found for this slide. Concrete in a bridge built in Great Britain in the 20 s has ... Stress-Strain Relationship the constant G is called the shear modulus and relates the shear stress and strain in the elastic region. Confining pressure (s2 = s3) ... - Constitutive models Part 1 Background and terminology Elasticity An initial excuse One of the difficulties of the presentation of a difficult theory is that the ... - Elastic anisotropy - Data ... Elastic anisotropy tensor elements. The modulus of elasticity for aluminum is 70 GPa and for streel is 200 GPa. The American Concrete Institute. 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. Static and dynamic tests were performed at 4, 7, 14, and 28 days to evaluate the compr… The strength of concrete is dependent on the relative proportion and modulus of elasticity of the aggregate. In other words, it reflects the ability of concrete to deflect elastically. 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 The PowerPoint PPT presentation: "Modulus of Elasticity and Poisson Ratio of Concrete" is the property of its rightful owner. Modulus of Elasticity and Poisson Ratio of Concrete - By: Tzu-Ting Yang. Deformations (strains) under sustained loads. ... of Metals. Creep does not necessarily cause concrete to fail or break apart. REINFORCED CONCRETE Slide No. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow.com is a great resource. 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. Concrete Elasticity Modulus - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. 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. Do you have PowerPoint slides to share? Find the Modulus of Elasticity of Concrete. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience. a summary is given of compression tests conducted on approximately 3,500 6 x 12 inch cylinders. It follows that the two materials are best The results show that based on composite theory it is possible to establish a model, which predicts overall concrete elasticity. The ratios of PET fiber range from 0.5% - 1.5%. 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 And so some key takeaways from the lecture, the modulus of elasticity and this class will be the notation for it will be a capital E. The slope of the linear elastic region of the stress-strain curve is the modulus of elasticity. 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. Keypoints: Reinforced Concrete Beam, Modulus of Elasticity, Finite Element Analysis, ANSYS 14.0. In recent years building specifications have even required a specific elastic modulus of concrete … Basically, long term pressure or stress on concrete can make it change shape. Use a minimum of two companion samples to determine the concrete compressive strength at the time of testing ( ). A simple composite model is used for this purpose. The weight density of reinforced concrete using normal aggregates is about 150 lb/ft3 (pcf). fcr 0.7 X f ck Where, fcr = flexural strength (modulus of rupture),N/mm2 fck= characteristic compressive cube strength of concrete rupture), N/mm2 Modulus of elasticity of M40- concrete. The tensile strength as well as the modulus of elasticity of concrete are both proportional to the square-root of its ultimate strength, f c, and can be approximated by f t = 6 f c…………(1.1), E A steel bar 100 mm long and having a square cross section 20 mm on an edge is pulled in tension with a load of 89,000 N, and experiences an elongation of 0.10 mm. The PowerPoint PPT presentation: "Modulus of Elasticity and Poisson Ratio of Concrete" is the property of its rightful owner. It has to be connected to a suitable data logger or, directly to our Automatic control consoles Advantest , MCC or Automax Multitest which can provide cyclic loading and automatic determination of the Modulus of Elasticity. The initial tangent modulus E c in N/mm 2 is estimated from k c c f E 5000 = (1.2) where f ck = characteristic compressive strength of concrete at 28 days The initial tangent modulus E c is also known as short term static modulus of elasticity of concrete in N/mm 2 and is used to calculate the elastic … The properties of high density concrete made with sheared mild steel bars as coarse aggregate and sand as fine aggregate are studied through experimental investigations. You can change your ad preferences anytime. Modulus of elasticity of concrete is defined as the ratio of stress applied on the concrete to the respective strain caused. Chapter 16 composites. Introduction Compressive Strength of Concrete. The concrete … As concrete is a heterogeneous material. And the behavior of the one-dimensional model for concrete shown in Fig.2 is V K H H nn E (7 ) where E n and η n are the elastic modulus and the viscous constant for concrete, respectively. The Select six cylindrical concrete specimens. It follows that the two materials are best Hii Attachments are compatible with 500, 400, 300, and 250 concrete compression machine series models, and comply with test standards indicated. Young’s Modulus For materials whose length is much greater than the width or thickness, we are concerned with the longitudinal modulus of elasticity, or Young’s Modulus (Y). ' Correct mix. In other words, it reflects the ability of concrete to deflect elastically. Undergraduate Civil Engineering. 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 … 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). The economy, the efficiency, the strength and the If you continue browsing the site, you agree to the use of cookies on this website. Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. Modulus of Elasticity and Poisson Ratio of Concrete - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. where. In this study, focus is on the modulus of elasticity for concrete with superabsorbent polymers (SAP). This deformation usually occurs in the direction the force is being applied. E=3.0 x 105 kg/ cm2. Tensile test machine. Concrete creep is defined as: deformation of structure under sustained load. 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. Calculate the theoretical values the Young’s Modulus and Poisson’s ratio. Steel is much stiffer than rubber. The elastic modulus of the hardened paste may be in the order of 10-30 GPa and aggregates about 45 to 85 GPa. Upper components are attached to machines by a locking stem system. Univ.. of Southern California. Depending upon the three of strain, there are three types of elastic moduli, viz. High modulus of elasticity for high rise structures | giatec scientific. Higher value 16.3% is observed for lower strength i.e., 21 MPa and 7.5% increase for 70 MPa strength, while the strength of wet concrete is found less than dry concrete. 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 … Boasting an impressive range of designs, they will support your presentations with inspiring background photos or videos that support your themes, set the right mood, enhance your credibility and inspire your audiences. shown. Nonlinear elasticity. In this article, let us learn about modulus of elasticity along with examples. The accurate value of modulus of elasticity of concrete can be determined by conducting a laboratory test called compression test on a cylindrical concrete specimen. 3 ENCE 454 ©Assakkaf Steel is a high-cost material compared with concrete. If you continue browsing the site, you agree to the use of cookies on this website. Modulus of Elasticity of Concrete of Different strengths Quick Tip! Cv = Seismic coefficient based on soil profile and Av. Magnitude of creep strain is a function of all the above that affect shrinkage, plus ... - 1/18 Mechanical Testing. 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 1/19 Tensile test for mild steel ... Tensile stretching of a bar results in lateral contraction or strain (and v v) ... - Earthquake Loads. Strain =Dial gauge reading/gauge length = dl/L Stress = Load/Cross sectional area= P/A Use Compressometer and Extensometer to measure modulus of elasticity of concrete. - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. 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 Like a concrete column getting more compressed, or a beam bending. This video shows how to find the modulus of elasticity of concrete. 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. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Note that the isotropy of a tensor is equivalent to the isotropy of a ... - Creep. Knowing that the beam is bent about a horizontal axis by a moment M = 1500 N-m, determine the maximum stress in (a) the aluminum and (b) the steel. Initially, the compressometer is set-up, followed by the application of load and testing. The upper limit of each compressive stress cycle will be 40 percent of the concrete compressive strength (0.4 ) measured immediately in advance of the modulus of elasticity testing. 3d elasticity. Factors affecting modulus of elasticity of concrete. It is important that E of concrete be known because engineers … Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. The modulus of elasticity of concrete is relatively constant at low stress levels but starts decreasing at higher stress levels as matrix cracking develops. 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. If so, share your PPT presentation slides online with PowerShow.com. a) Young’s Modulus(Y) or modulus corresponding to longitudinal strain b) Bulk modulus(K) or modulus corresponding to the volume strain c) Rigidity modulus(N) or modulus corresponding to the shearing strain. In this paper, the modulus of elasticity of lightweight concrete contains polyethylene terephthalate (PET) as fine, coarse aggregate was estimated by using and fiber experimental data from different literatures. - Where there is no fixed value for the Young ’ s modulus and Poisson s... Find values for the Young ’ s ratio, the strength soil profiled and...! Presentation, you 'll need to allow Flash '' is the measure of the stress... 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