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Modulus of Elasticity of Concrete. 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. As concrete is a heterogeneous material. The strength of concrete is dependent on the relative proportion and modulus of elasticity of the aggregate. To know the accurate value of elastic modulus of a concrete batch ...

More2019-03-04 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. The main factors which may affect the values determination of modulus of elasticity are,

More2017-12-18 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.

MoreModulus of elasticity of concrete(Ec) is defined as the ratio of the applied stress to the corresponding strain. Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. In other words, it reflects the ability of concrete to deflect elastically. Modulus of elasticity of concrete is sensitive to aggregate and mixture proportions ...

MoreThe modulus of elasticity of the concrete does not present a linear behavior after a certain level of tension. Tests with specimens show that the stress-stain diagram for concrete is usually linear for stress 30% lower than the effective strength after which it presents a curved shape. This behavior is the result of the progressive microcracking that happens in the interface between aggregate ...

More2016-01-20 4. Influencing factors on the modulus of elasticity of recycled aggregate concrete. The modulus of elasticity of concrete is known to be influenced by the cement paste, the aggregate's nature, the interfacial transition zone (ITZ) and the compacity of concrete (Neville, 1995).Like other properties, the modulus of elasticity also depends on the age of concrete, as a result of the cement

MoreThe modulus of elasticity is a very important mechanical property of concrete. The higher the value of the modulus, the stiffer the material is. Thus, comparing a high performance concrete to a normal strength concrete, it is seen that the elastic modulus for high performance concrete will

More2012-09-01 In all concrete mixes, the crushed stone with maximum size of 12.5 ... As shown, the changing trend of the secant modulus of elasticity versus both the final lateral pressure and reference concrete strength is quite similar to that of the initial modulus of elasticity. The relationship between the percentage increase in the secant modulus of elasticity and final lateral pressure of LPCC ...

MoreWith CEM I as a binder, the static modulus of greywacke concrete diminishes by 51 %, of quartz-porphyrite concrete by 54 %, and of crushed gravel concrete by 50 %. The comparison between the two moduli of elasticity is made by dividing the static modulus by the dynamic modulus for the exposure time between 35 and 560 days.

MoreThe modulus of elasticity for a material is basically the slope of its stress-strain plot within the elastic range (as shown in Figure 1). Figure 2 shows a stress versus strain curve for steel. The initial straight-line portion of the curve is the elastic range for the steel. If the material is loaded to any value of stress in this part of the curve, it will return to its original shape. Thus ...

MoreBrittleness and modulus of elasticity are two very different things. The modulus of elasticity conceptually tells how much stress can you apply to get a certain strain without the material failing. More precisely the modulus is the slope of the strain to stress graph in the linear regime, which can also be called the elastic regime. The exact way in which a material would fail is a different ...

MoreKeywords: Static, dynamic, modulus, elasticity. Date: 10/1/2008. Abstract: The static Young’s modulus (E) is defined as the ratio of the axial stress to axial strain for a material subjected to uni-axial load [Neville 1997]. It is important that E of concrete be known because engineers increasingly use this value in the structural design process. Most often E is inferred from the compressive ...

MoreIn other words, whereas modulus of elasticity of concrete of normal strength has been predictable from the compressive strength with exponent b at 0.4 to 0.5, 0.3 to 0.4 are more appropriate as the values of exponent b in a general-purpose equation to estimate modulus of elasticity for a wide range of concretes from normal to high-strength.

MoreKeywords: High-Strength Concrete, Modulus of Elasticity, Coarse Aggregates, Correction Factors Introduction: It is understood that for design of plain, reinforced and prestressed concrete one of the most important elastic properties of concrete needs to be defined is a modulus of elasticity. This is for the performance of the structure, serviceability of reinforced concrete members in ...

MoreTypical Values of Young’s Elastic Modulus and Poisson’s Ratio for Pavement Materials Young’s Elastic Modulus Poisson’s Ratio Material (E or Mr), psi (μ or ν) Asphalt concrete 32 F 2,000,000 – 5,000,000 0.25 – 0.30 (uncracked) 70 F 300,000 – 500,000 0.30 – 0.35 140 F 20,000 – 50,000 0.35 – 0.40 Portland cement concrete 3,000,000 – 5,000,000 0.15 (uncracked) Similar to ...

MoreE = Young's Modulus of Elasticity (Pa, N/m 2, lb/in 2, psi) named after the 18th-century English physician and physicist Thomas Young; Elasticity. Elasticity is a property of an object or material indicating how it will restore it to its original shape after distortion. A spring is an example of an elastic object - when stretched, it exerts a ...

MoreThe modulus of elasticity is a very important mechanical property of concrete. The higher the value of the modulus, the stiffer the material is. Thus, comparing a high performance concrete to a normal strength concrete, it is seen that the elastic modulus for high performance concrete will

MoreThe modulus of elasticity for a material is basically the slope of its stress-strain plot within the elastic range (as shown in Figure 1). Figure 2 shows a stress versus strain curve for steel. The initial straight-line portion of the curve is the elastic range for the steel. If the material is loaded to any value of stress in this part of the curve, it will return to its original shape. Thus ...

MoreT. J. Hirsh, “Modulus of elasticity of concrete affected by elastic moduli of cement paste matrix and aggregate,” ACI Journal, vol. 59, no. 3, pp. 427–452, 1962. View at: Google Scholar U. J. Counto, “The effect of the elastic modulus of the aggregate on the elastic modulus, creep and creep recovery of concrete,” Magazine of Concrete Research , vol. 16, pp. 129–138, 1964.

MoreKeywords: High-Strength Concrete, Modulus of Elasticity, Coarse Aggregates, Correction Factors Introduction: It is understood that for design of plain, reinforced and prestressed concrete one of the most important elastic properties of concrete needs to be defined is a modulus of elasticity. This is for the performance of the structure, serviceability of reinforced concrete members in ...

Morethe stone coarse aggregate and through the weaker contact zone. Figure 7.1. Compressive strength versus age of lightweight concrete (from Holm 1980a) 7-5 Figure 7.2. Strength versus concrete binder content (from Holm 1994) 7.2 Tensile and Shear Strength Shear, torsion, anchorage, bond strength, and crack resistance are related to tensile strength, which, in turn, is dependent upon tensile ...

MoreTypical Values of Young’s Elastic Modulus and Poisson’s Ratio for Pavement Materials Young’s Elastic Modulus Poisson’s Ratio Material (E or Mr), psi (μ or ν) Asphalt concrete 32 F 2,000,000 – 5,000,000 0.25 – 0.30 (uncracked) 70 F 300,000 – 500,000 0.30 – 0.35 140 F 20,000 – 50,000 0.35 – 0.40 Portland cement concrete 3,000,000 – 5,000,000 0.15 (uncracked) Similar to ...

More2017-11-11 The masonry Modulus of Elasticity (Em) is commonly calculated as the chord modulus of the linear part of the masonry compression stress-strain curve, which is typically defined to be between 5% and 33% of the ultimate masonry compressive strength (f’m) (ASTM 2003a; Drysdale et al. 1999). Alternatively, Gumaste et al. (2006) used the secant modulus at 0.25 to calculate the masonry Modulus

MoreModulus of elasticity - E: 14 - 41 GPa (2 - 6 x 10 6 psi) Permeability : 1 x 10-10 cm/sec; Coefficient of thermal expansion - β: 10-5 o C-1 (5.5 x 10-6 o F-1) Drying shrinkage : 4 - 8 x 10-4; Drying shrinkage of reinforced concrete : 2 - 3 x 10-4; Poisson's ratio: 0.20 - 0.21; Shear strength - τ : 6 - 17 MPa; Specific heat - c: 0.75 kJ/kg K (0.18 Btu/lb m o F (kcal/kg o C)) Sponsored Links ...

More2015-02-13 First of all, (kg/cm^2)*10^5 is not the correct unit for Young’s modulus, which should be in units of pressure. Pressure is a force over an area, so N*m^-2 or in SI units kg*m^-1*s^-2. Maybe what you were going for was gigapascals, which would be (N/cm^2)*10^5, although a better way to write that would just be (N/m^2)*10^9. Second, if you’re going with GPa, all of these values of Young’s ...

MoreWith the increasing use of concrete and steel in combination, the modulus of elasticity of cement mortar and concrete assumes a new importance, since the ratio of the stresses in the two materials depends upon the relative moduli of elasticity. Some of the earlier determinations of the modulus of mortar gave very high values.

More2020-09-10 For example, the modulus of elasticity of steel is about 200 GPa or 29,000,000 psi, and the modulus of elasticity of concrete is around 30 GPa or 4,350,000 psi. The modulus of elasticity of ...

MoreThe modulus of elasticity for a material is basically the slope of its stress-strain plot within the elastic range (as shown in Figure 1). Figure 2 shows a stress versus strain curve for steel. The initial straight-line portion of the curve is the elastic range for the

Moreinfluences the elastic modulus of concrete significantly when the w/c ratio of themix is less than 0.40. Thus coarse aggregate type is a very important factor affecting the elastic modulus of hardened concrete since different types of aggregates can have quite distinct effects on elastic modulus.Manget al.(2005) defined modulus of elasticity as the slope of the stress-strain curve within the ...

MoreThe properties of the coarse aggregate used in a concrete mixture affects the modulus for a few reasons. One property is the modulus of elasticity of the coarse aggregate. A higher aggregate modulus will result in a concrete having a higher modulus. As expected, a lightweight aggregate will have

MoreEquation (1) is the calculation for the modulus of elasticity of concrete E c according to the pre-2005 AASHTO LRFD specifications Eq. (5.4.2.4.1): E c = 33,000w c 1.5 f' (1) where c f' = compressive strength of concrete w c = density of concrete related to modulus of elasticity, shrinkage, and creep of concrete. The experimental program was conducted at vari- ous bridge sites and at the ...

MoreModulus of elasticity - E: 14 - 41 GPa (2 - 6 x 10 6 psi) Permeability : 1 x 10-10 cm/sec; Coefficient of thermal expansion - β: 10-5 o C-1 (5.5 x 10-6 o F-1) Drying shrinkage : 4 - 8 x 10-4; Drying shrinkage of reinforced concrete : 2 - 3 x 10-4; Poisson's ratio: 0.20 - 0.21; Shear strength - τ : 6 - 17 MPa; Specific heat - c: 0.75 kJ/kg K (0.18 Btu/lb m o F (kcal/kg o C)) Sponsored Links ...

Morepressive strength, splitting tensile strength, modulus of elasticity, and Poisson's ratio are reported. The results show that the elastic modulus developed much faster than either the tensile or the compressive strength, which developed at approximately the same rate. Poisson's ratio did not change substantially with either rich ness of mix or age of concrete and did not vary appreciably ...

More2015-02-13 First of all, (kg/cm^2)*10^5 is not the correct unit for Young’s modulus, which should be in units of pressure. Pressure is a force over an area, so N*m^-2 or in SI units kg*m^-1*s^-2. Maybe what you were going for was gigapascals, which would be (N/cm^2)*10^5, although a better way to write that would just be (N/m^2)*10^9. Second, if you’re going with GPa, all of these values of Young’s ...

MoreThe modulus of elasticity (= Young’s modulus) E is a material property, that describes its stiffness and is therefore one of the most important properties of solid materials. Mechanical deformation puts energy into a material. The energy is stored elastically or dissipated plastically. The way a material stores this energy is summarized in stress-strain curves. Stress is defined as force per ...

MoreLean Concrete Subbase Depth vs kc, pci, (LS=1) 4 in 6 in: 8 in. 10 in 50 104 156. 205: 262 100 192 271: 354. 443 150 274 378. 488: 603 200 353 480: 612. 750 e. Concrete properties – Modulus of Elasticity (Ec) and Modulus of Rupture (S’c). S’c is the 28 day Flexural Strength of the concrete. Ec can be derived from S’c as follows Ec ...

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