An Experimental Study on High Strength Concrete using Fly Ash and Alccofine

Qureshi, Mohammed Nadeem; Tandel, Yogendra; Patel, Bhavin A

doi:10.26634/jste.2.4.2752

Cited by 2 publications

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“…The FRP is a brittle material that has linear elastic behavior up to failure. The usage of both conventional steel bars and FRP bars/grids might be an advantage of combining the two behaviors to enhance the overall concrete element's strength and ductility Most of the published research [9,11,14,15,[17][18][19] was focused on the performance of reinforced concrete elements reinforced by FRP bars under monotonic loading. The Inclusion of FRP grids in high strength concrete elements is very limited and the behavior of such beams under reverse cyclic loading is also limited and need more investigation.…”

Section: Introductionmentioning

confidence: 99%

Structural response of high strength concrete beams using fiber reinforced polymers under reversed cyclic loading

Guo¹

2022

Sustain. Struct.

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This paper investigates the response of high strength concrete (HSC) beams subjected to reversed cyclic loading using carbon fiber-reinforced polymer (CFRP), glass fiber-reinforced polymers (GFRP), and hybrid FRP/steel bars as bottom tensile reinforcement. Five HSC beams with a rectangular cross-section were prepared and poured using with a 28-day concrete compressive strength of 60 MPa (8.7 ksi). A displacement-controlled reversed cyclic loading has been applied to all the beams. The test setup has been designed to represent seismic effect on structures. Flexural capacity, concrete and reinforcement steel strains, cracking behavior, and ductility results were obtained. The hybrid steel/FRP has shown an improved performance in terms of flexural capacity, strains, and ductility. While the inclusion of FRP grids reduces the flexural capacity, this can be improved by adding more layers of FRP. Overall, the nominal moment of the hybrid sections were the highest between all beams. The ACI 318 code’s empirical equations showed close results in terms of the tensile strength of the FRP. The ACI 440R has shown overestimated nominal moment values compared to the experimental results.

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Section: Introductionmentioning

confidence: 99%

Structural response of high strength concrete beams using fiber reinforced polymers under reversed cyclic loading

Guo¹

2022

Sustain. Struct.

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“…Moreover, it was recognized that high strength alone is not an efficient way of attaining high performance. e endurance of these ingredients in different settings necessitates detailed research to find a suitable alternative [28,29].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Reinforced Concrete Column Containing Metakaolin and Fly Ash Cementitious Materials

Dharmaraj

Bhadauria

Mayilsamy

et al. 2022

Advances in Civil Engineering

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Nowadays, high-performance concrete is employed in the building sector all over the world. For a strong and durable construction, high performance appears to be a better option. These specially designed types of concrete are made using both conventional and unique materials to fulfill a combination of performance requirements. The objective of this experiment is to investigate the behaviour of short and long columns made of high-performance concrete (HPC). In this study, HPC was manufactured by essential denominators such as cement, fine aggregate, coarse aggregate, water, and mineral admixtures such as metakaolin and fly ash at different replacement levels. The high-performance concrete (HPC) was designed with compressive strength (CS) of about 60 N/mm2. The mixture was developed under the guidelines in modified ACI 211.4R-93. All combinations have the same 0.30 water binder ratio (W/B) and are utilized to achieve improved workability with the addition of a superplasticizer for a chemical admixture, namely, CERAPLAST 300. Seven proportions are cast with 0%, 5%, 7.5%, and 10% replacement of cement with metakaolin and another set of specimens with 5%, 7.5%, and 10% replacement with metakaolin along with a constant 10% replacement of fly ash. For the investigation of strength properties, specimens (cube, prism, and cylinders) such as compressive strength (CS) (3, 7, 28, 56, and 90 days), flexural (FS) and tensile strength (STS) (28 days) and modulus of elasticity were cast (28 days). Totally 14 columns, 7 for short and long columns, were cast, each cured for 28 days. These specimens have been tested in the 1000 kN loading frame. All small columns were tested with concentrated compression, whereas long columns were investigated with little concentration and uniaxial bending. The compressive strength of HPC with 7.5 percent metakaolin and 10 percentage fly ash (MR6) is 59 MPa, 7.34% greater than the compressive strength of reference concrete.

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An Experimental Study on High Strength Concrete using Fly Ash and Alccofine

Cited by 2 publications

References 0 publications

Structural response of high strength concrete beams using fiber reinforced polymers under reversed cyclic loading

Structural response of high strength concrete beams using fiber reinforced polymers under reversed cyclic loading

Investigation of Reinforced Concrete Column Containing Metakaolin and Fly Ash Cementitious Materials

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