Stress–strain behavior of sustainable polyester concrete

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Stress–strain behavior of sustainable polyester concrete ...

Jan 01, 2021  This difference affects the properties of concrete that the aggregate is used to make. This research investigated the failure patterns and stress–strain behavior of

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STRESS-STRAIN BEHAVIOUR OF POLYMER CONCRETE SYSTEMS -

Apr 30, 2016  The stress-strain responses of polymer concrete systems with epoxy and polyester as binders were investigated at varying temperatures, resin content and void

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Performance of Epoxy and Polyester Polymer Concrete

May 01, 1990  The behavior of epoxy and polyester polymer concrete was studied under various curing conditions, temperatures, and strain rates. Influence of aggregate size and

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Stress-Strain Behaviour of Concrete

The strain corresponding to ultimate stress is usually around 0.003 for normal strength concrete. The stress-strain behaviour in tension is similar to that in

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Stress-strain behavior of spirally confined recycled ...

Jul 01, 2019  Hoshikuma et al. (1997) investigated the stress-strain behavior of concrete confined with steel spiral reinforcement considering different confinement pressures.

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Stress-Strain Behavior of Thermoplastic Polyurethane

strain deformation behavior. A constitutive model for the observed stress-strain behavior is then developed and compared directly to experimental data. 2

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Characterization of Polyester Polymer and Polymer Concrete ...

Mar 27, 1990  The strain rate was varied between 0.01% to 60% strain per minute and the temperature between 22°C and 120°C. The optimum curing condition for polymer and polymer concrete are different. The strength, failure strain, modulus, and stress‐strain relationship of polyester polymer and polymer concrete are influenced by the curing method ...

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(PDF) Review of Polyester Polymer Concrete Properties

The strength, failure strain, modulus, and stress- strain relationship of polyester polymer and polymer concrete are influenced by the curing method, testing temperature, and strain rate to ...

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Performance of Concrete Confined with a Jute– Polyester ...

peak stress-strain behavior was dominated by the ou ter polyester jacket because of its large rupture strain. Additionally, the test results were used to evaluate the existing strength-strain models derived for conventional FRPs. The models predicted values either underestimating or

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Stress-Strain Behavior of High-Strength Concrete Confined ...

In situations where high-strength concrete (HSC) is used for reinforced concrete members subjected to seismic loading, it is more difficult to achieve ductile behavior of such members than when normal-strength concrete is used. This paper presents an experimental study of a number of quasi-static axial loading tests on HSC specimens confined by various amounts of transverse reinforcement.

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Strength and ductility improvement of recycled aggregate ...

Apr 01, 2019  Strength and ductility improvement of recycled aggregate concrete by polyester FRP-PVC tube confinement. ... this will be a significant step for the development of sustainable concrete industry. However, ... Stress-strain behavior of concrete columns confined with hybrid composite materials. Mater Struct, 35 (6) (2002) ...

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Stress and Strain Behavior of Slender Concrete Columns ...

This paper presents the results of experimental studies about axial stress-strain behavior of retrofitted slender concrete columns with CFRP composites. In this study, 30 unreinforced concrete cylinders 100 mm diameter with variable height of 200, 400, 600, 800, and 1000 mm were prepared and retrofitted. In each group, a plain specimen

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Stress-Strain Behavior of Steel Fiber-Reinforced Concrete ...

Apr 26, 2018  The compressive strength of concrete according to certain codes can be based on the compressive strength of unconfined plain standard concrete cylinders tests at the age of 28 days. In this paper, the standard concrete cylinders were spirally confined with steel bars and with/without hooked-end steel fibers. The influence of the use of hooked-end steel fiber in spirally confined concrete with ...

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Behavior of a sustainable composite floor system with ...

Behavior of a sustainable composite floor system with deconstructable clamping connectors ... steel-concrete composite floor systems make efficient use of the two materials, with concrete ... The bolt axial stress was then converted from the strain measurements utilizing the stress-strain curves obtained from tensile testing of round coupons ...

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Cement and Concrete Composites Vol 97, Pages 1-398 ...

Read the latest articles of Cement and Concrete Composites at ScienceDirect, Elsevier’s leading platform of peer-reviewed scholarly literature ... select article The effect of concrete alkalinity on behavior of reinforcing polyester and polypropylene fibers with similar properties. ... Axial stress-strain behavior of macro-synthetic fiber ...

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High-performance fiber-reinforced concrete: a review ...

Mar 30, 2016  Stress–strain curve. Typically, the stress–strain curves of most normal strength concretes are roughly linear to about one-third to one-half of the concrete’s ultimate strength . In the case of high-strength concrete, it has been found to be straight up to 85 % or more of the peak stress .

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FRP-confined recycled glass aggregate concrete: Concept ...

Stress-strain models for FRP-confined concrete. A number of stress-strain models have been proposed for FRP-confined concrete and these models can be divided into design-oriented models (e.g., Refs. [47,48,50]) and analysis-oriented models (e.g., Ref. [46]) which predict stress-strain curves using an incremental procedure.

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(PDF) Flexural Behaviour of Reinforced Concrete Beam with ...

A concrete strength of 60 MPa was used in this study as high strength concrete. The GFRP reinforced concrete beam is strengthened with CFRP plate with different length. Finally, the beam is tested using on static load to determine the flexural behavior and compared with the theoretical calculation.

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Experimental investigation on the effects of recycled ...

Polymer concrete exhibits brittle failure behavior and therefore, it is important to improve its post-peak stress-strain behavior. Hence developing better PC systems and also characterizing the fracture and mechanical properties in terms of constituents are essential for the efficient utilization of PC.

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Compressive behavior of CFFT with inner steel wire mesh ...

A new concrete filled FRP tube (CFFT) with inner steel wire mesh (WM), termed as CFFT-WM, is proposed in this paper. Uniaxial compression tests were carried out on 27 CFFT-WM specimens to investigate the compressive behavior of the composite structure. The considered experimental variables are number of GFRP layers (1, 2 and 3 layers) and volumetric ratios of WM (0.31, 0.60 and 0.89%).

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Topic 11 - Seismic Design of Reinforced Concrete Structures

long as both the steel and the concrete stress-strain behaviors are linear. Concrete can be assumed to have a linear stress-strain behavior up to approximately 50% of maximum concrete stress (f’ c). After the concrete stress exceeds about 50%f’ c, a strain compatibility approach can be used, using a realistic concrete stress-strain model ...

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Performance of Concrete Confined with a Jute–Polyester ...

A total of 32 plain, standard size circular and square concrete specimens, externally wrapped with a jute–polyester FRP (JPFRP) composite, were tested under monotonic axial compressive loads. The result shows that JPFRP confinement increased the strength, strain and ductility index ranged between 1.24 and 2.61, 1.38 and 8.97, and 4.94 and 26 ...

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High-performance fiber-reinforced concrete: a review ...

Mar 30, 2016  Stress–strain curve. Typically, the stress–strain curves of most normal strength concretes are roughly linear to about one-third to one-half of the concrete’s ultimate strength . In the case of high-strength concrete, it has been found to be straight up to 85 % or more of the peak stress .

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Dynamic compressive behavior of recycled aggregate concrete

Jan 25, 2016  The dynamic compressive behavior of recycled aggregate concrete (RAC) prepared with five recycled coarse aggregate (RCA) replacement percentages was experimentally studied at strain rates ranging from 10 −5 to 10 −1 s −1.The effect of strain rate, RCA replacement percentage and moisture condition on the compressive behavior of RAC was studied in terms of stress–strain curve ...

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Experimental Compressive Behavior and Numerical Modeling ...

Ultra-high performance concrete (UHPC) is commonly defined as a cementitious material, reinforced by fiber, which has compressive and sustained post-cracking tensile strength of more than 21.7 ksi (150 MPa) and 0.72 ksi (5 MPa), respectively. The outstanding mechanical behavior of UHPC is owed to its particular mixture.

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Chapter 6: Mechanical properties of metals

Engineering tensile strain, ε Engineering tensile stress, σ small toughness (ceramics) large toughness (metals) Adapted from Fig. 6.13, Callister 7e. • Stress and strain: These are size-independent measures of load and displacement, respectively. • Elastic behavior: This reversible behavior often shows a linear relation between stress and ...

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Cement and Concrete Composites Vol 97, Pages 1-398 ...

Read the latest articles of Cement and Concrete Composites at ScienceDirect, Elsevier’s leading platform of peer-reviewed scholarly literature ... select article The effect of concrete alkalinity on behavior of reinforcing polyester and polypropylene fibers with similar properties. ... Axial stress-strain behavior of macro-synthetic fiber ...

Get price

(PDF) Use of Plastic Waste in Concrete Mix IRJET Journal ...

The stress-strain behavior is plastic behavior which has Table 4 Yield point in (N) plastic mix concrete after 7 several stages of deformation. It works as semi crystalline and 28 days polymer, flexible concrete and not brittle as Sand-Portland cement concrete.

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Numerical Modeling of the Lateral Behavior of Concrete ...

can be expressed in terms of the behaviors of its components during deformation (Desai, 2015). The DSC model is formulated as the decomposition of the material behavior into relatively intact (RI) component representing the undamaged behavior of the material, and a fully adjusted (FA) component representing the microcracked part of the material.

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Experimental investigation on the effects of recycled ...

Polymer concrete exhibits brittle failure behavior and therefore, it is important to improve its post-peak stress-strain behavior. Hence developing better PC systems and also characterizing the fracture and mechanical properties in terms of constituents are essential for the efficient utilization of PC.

Get price

Compressive behavior of CFFT with inner steel wire mesh ...

A new concrete filled FRP tube (CFFT) with inner steel wire mesh (WM), termed as CFFT-WM, is proposed in this paper. Uniaxial compression tests were carried out on 27 CFFT-WM specimens to investigate the compressive behavior of the composite structure. The considered experimental variables are number of GFRP layers (1, 2 and 3 layers) and volumetric ratios of WM (0.31, 0.60 and 0.89%).

Get price

(PDF) Flexural Behaviour of Reinforced Concrete Beam with ...

A concrete strength of 60 MPa was used in this study as high strength concrete. The GFRP reinforced concrete beam is strengthened with CFRP plate with different length. Finally, the beam is tested using on static load to determine the flexural behavior and compared with the theoretical calculation.

Get price

PAPER OPEN ACCESS Numerical Analysis of Shear Strength ...

Mar 02, 2020  stress-strain relationship regarding to section (3.1.5) in Eurocode 2 which has a behavior of linear elastic until (40 percent) of compressive strength of concrete and then the behavior of non-linear of concrete begins and continues until the ultimate compressive strain of the concrete

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CIV204 MATERIALS OF CONSTRUCTION (2+2 ECTS 6)

Viscoelastic Behavior Strain is an instantaneous response to stress in elastic and elasto-plastic materials. In some cases, materials exhibit both viscous and elastic responses, which are known as viscoelastic. Viscosity: Resistance to flow (i.e., to shear force) for linear materials: = shear stress/rate of shear strain, unit Pa.s or cP

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