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 sustainable polyester concrete SPC with different types and concentrations of recycled aggregate, in addition to fly as a mineral filler.

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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 content to ascertain the influence of polymer properties on the polymer concrete behavior in

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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 distribution on the mechanical properties of polymer concrete was also investigated. The strain rate was varied between 0.01 to 6 percent strain per min and the temperature between 22 ...

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Stress-Strain Behavior of Cementitious Materials with ...

Knowledge of the stress-strain relationship of concrete is vital to achieve a rational design of structures and structure components involving concrete. The nonlinear stress-strain behavior, size-dependent strength, fracture mode transition, and other phenomena are not adequately explained by the classical concepts of the mechanical behavior of ...

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Compressive stress–strain behavior of steel fiber ...

Feb 01, 2014  The stress–strain behavior of the steel fiber reinforced CDW-concrete was modeled using the following analytical expressions proposed by Ezeldin and Balagaru : (4) f c f cf = β ε c ε co β-1 + (ε c ε co) β (5) β = 1.093 + 0.7132 (RI)-0.926 where f cf = compressive strength of fiber concrete; ɛ co = strain corresponding to the ...

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Ghadah MASOOD Lecturer Master of Engineering Al ...

Stress–strain behavior of sustainable polyester concrete with different types of recycled aggregate ... This research investigated the failure patterns and stress–strain behavior of ...

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Stress-strain behavior of spirally confined recycled ...

Stress-strain behavior of spirally confined recycled aggregate concrete: An approach towards sustainable design. ... A comparative study of the existing models for stress-strain behavior of steel confined normal aggregate concrete (NAC) with the test results indicates that the stress-strain characteristics of steel confined RAC cannot be well ...

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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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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 Stress-Strain Behavior The stress-strain behavior of TPUs demonstrates strong hysteresis, time dependence, and cyclic softening.

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PERFORMANCE OF EPOXY AND POLYESTER POLYMER CONCRETE

The behavior of epoxy and polyester concretes was studied under various curing conditions, temperatures, and strain rates. The influence of aggregate size and distribution on the mechanical properties of polymer concrete (PC) was also investigated. The strain rate was varied between 22 and 120 C (72 and 248 F).

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Compressive stress–strain behavior of steel fiber ...

Feb 01, 2014  The stress–strain behavior of the steel fiber reinforced CDW-concrete was modeled using the following analytical expressions proposed by Ezeldin and Balagaru : (4) f c f cf = β ε c ε co β-1 + (ε c ε co) β (5) β = 1.093 + 0.7132 (RI)-0.926 where f cf = compressive strength of fiber concrete; ɛ co = strain corresponding to the ...

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Cross-Sectional Unification on the Stress-Strain Model of ...

The stress-strain behavior of concrete can be improved by providing a lateral passive confining pressure, such as fiber-reinforced polymer (FRP) wrapping. Many axial stress-strain models have been proposed for FRP-confined concrete columns. However, few models can predict the stress-strain behavior of confined concrete columns with more than two specified cross-sections.

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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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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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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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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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Behavior of hybrid GFRP–perforated-steel tube-encased ...

This study presents an experimental investigation on concrete confined by glass fiber reinforced polymer (GFRP) and perforated-steel tube subjected to uniaxial compression. The compressive behavior of this hybrid structure is compared with GFRP tube encased concrete and steel tube encased concrete. The three key experimental parameters were investigated: the layers of GFRP tube (1, 2, 3 and 4 ...

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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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Fiber Reinforced Concrete Research Papers - Academia

In this study, M25 grade concrete is used for nominal mix design. High strength high modulus polyester filament yarns are used to study its effects in reinforcing concrete mixes and to obtain basic strength. For the concrete to achieve its maximum strength and longevity, curing must be carried out for a

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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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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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Stress-Strain Behavior of Polymers

Stress-Strain Behavior of Polymers. A ductile material shows a characteristic yield point followed by a drop in strength and break at lower stress but much higher strain. At this point, the material starts to undergo plastic deformation. Materials with high plasticity show strong necking and

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International Journal of Sustainable Construction ...

Behavior of Foamed Concrete under Quasi State Indentation ... behave like cellular material behavior. The Stress-strain behavior can be divided into ... International Journal of Sustainable ...

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Unrestrained and Restrained Shrinkage Behavior of ...

Oct 10, 2020  Unrestrained and Restrained Shrinkage Behavior of Sustainable Lightweight Concrete Using Air Foam and Bottom Ash Aggregates ... The net time to cracking and average stress rate at cracking recorded in the ring specimens under restrained condition ranged between 1.33 and 1.75 days and 1 ... Strain, Sustainable development, Bottom ash ...

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Experimental study of polyester FRP confined concrete ...

Ultimate stress, rupture strain, jacket parameters, and cross-sectional geometry were found to be significant factors affecting the stress–strain behavior of FRP-confined concrete.

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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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Lecture notes on Structure and Properties of Engineering ...

Stress –Strain Behavior of Polymers Polymers can be brittle (A), plastic (B), or highly elastic (C). Deformation shown by curve C is totally elastic (rubber-like elasticity, large recoverable strain at low stress levels). This class of polymers –elastomers. The description of stress-strain behavior is (somewhat) similar to that of metals

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Compressive Behavior of Fiber-Reinforced Concrete with End ...

In this paper, the compressive behavior of fiber-reinforced concrete with end-hooked steel fibers has been investigated through a uniaxial compression test in which the variables were concrete compressive strength, fiber volumetric ratio, and fiber aspect ratio (length to diameter). In order to minimize the effect of specimen size on fiber distribution, 48 cylinder specimens 150 mm in diameter ...

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(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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Jute–Polyester Hybrid Fiber Reinforced Polymer Composite ...

cross-section. For high strength specimens, the post-peak stress-strain behavior was dominated by the outer 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

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[PDF] Compressive Behavior of Concrete Confined with GFRP ...

This paper presents the experimental results and analytical modeling of the axial compressive behavior of concrete cylinders confined by both glass fiber-reinforced polymer (GFRP) tube and inner steel spiral reinforcement (SR). The concrete structure is termed as GFRP–SR confined concrete. The number of GFRP layers (1, 2, and 3 layers) and volumetric ratios of SR (1.5% and 3%) were the ...

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Fiber Reinforced Concrete Research Papers - Academia

In this study, M25 grade concrete is used for nominal mix design. High strength high modulus polyester filament yarns are used to study its effects in reinforcing concrete mixes and to obtain basic strength. For the concrete to achieve its maximum strength and longevity, curing must be carried out for a

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A review on effect of different fiber types on fiber ...

original to some arbitrary points on the stress/strain curve. The concrete containing a fraction of the steel fibers by 0.25% and 0.5% had a marginal higher value of the elastic coefficient contrast to the concrete non-fiber. Elastic modulus of concrete containing 0.05% PP fibers are slightly higher than the elastic modulus of concrete

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