Mechanical performance enhancement of recycled aggregate concrete using GGBS and fly ash for sustainable construction

Sarma, V. V. S.; Subhan Alisha, Shaik; Vijay, Kunamineni; Gireesh Kumar, Pala; Sai Kumar, K. S.

doi:10.1007/s41939-023-00271-9

Cited by 7 publications

(5 citation statements)

References 23 publications

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“…Quarry dust's particle size distribution is closely aligned with that of sand [7,8]. Furthermore, it has been observed that incorporating quarry dust as a fine aggregate in concrete results in reduced workability but meets the necessary strength criteria [6,19]. Table 3 presents the test outcomes for quarry dust.…”

Section: Quarry Dustmentioning

confidence: 93%

Exploring the Impact of Alccofine and Quarry Dust on Compressive and Split Tensile Strength of Concrete

Prasad Bokka,

Sree Kumar,

Suseela

et al. 2024

J. Phys.: Conf. Ser.

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This investigation delves into the creative application of Alccofine—a cutting-edge, microfine substance—along with quarry dust, serving as partial replacements for cement and river sand in concrete blends, aiming to improve both the mechanical attributes and the environmental sustainability of the concrete. Alccofine, recognized for its pozzolanic activity, together with quarry dust—a residual product from the stone crushing process in quarries—were examined for their capability to enhance the strength and longevity of concrete. The experimental approach involved modifying a standard concrete mix formulation by substituting 10% of cement with Alccofine—determined as the most effective proportion based on prior research— and replacing 0%, 5%, 10%, 15%, 20%, 25%, and 30% of river sand with quarry dust. This study aimed to evaluate how these adjustments affect the compressive and split tensile strengths of concrete after curing for 7, 14, and 28 days. The outcomes indicated that concrete blends incorporating Alccofine and quarry dust reached the desired average strength levels after a 28-day curing period, with the combination of 10% Alccofine and 10% quarry dust (A10Q10) showing the most notable enhancement in both early and sustained strength characteristics. This particular mix experienced a minor reduction in compressive strength in comparison to the concrete with only Alccofine (A10), hinting at an ideal equilibrium of the advantages offered by these materials. The study confirms that the synergistic use of Alccofine and quarry dust not only contributes to the development of high-strength, sustainable concrete but also leverages industrial byproducts, thereby enhancing the environmental sustainability of construction practices.

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Section: Quarry Dustmentioning

confidence: 93%

Exploring the Impact of Alccofine and Quarry Dust on Compressive and Split Tensile Strength of Concrete

Prasad Bokka,

Sree Kumar,

Suseela

et al. 2024

J. Phys.: Conf. Ser.

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“…It measures how much stress a material can endure when pulled or stretched. Elaborating further, materials with high tensile strength can withstand greater forces before reaching their breaking point, making them suitable for applications where durability under tension is crucial, such as in construction, engineering, and manufacturing and this examination involves subjecting a specimen to traverse bending tests, [18] we got the values from our observation as citied from table-10 and figure-9,10,11.…”

Section: Tensile Strengthmentioning

confidence: 99%

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

Sai Kumar,

Greeshma,

Rambabu

et al. 2024

J. Phys.: Conf. Ser.

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Since there is a deficit of raw materials available for construction, concrete is essential in designing concrete structures in the modern world. As a result, the construction sector is now familiar with cutting-edge techniques that utilize waste material that is readily available for partial replacement by substituting alternative aggregates for regular aggregates. In this study, pumice stone located in the lowest section of the ocean or the abyss of red clay is utilized in place of concrete, with a replacement in a portion made of pumice mixed with cement. Concrete’s mechanical and physical durability was examined by measuring its Split and compressive strengths of ordinary concrete and substituting it with varying quantities of pumice (10% to 30%). M sand is entirely replaced in fine aggregate. From the previous studies, it shows the 50% of Coarse aggregate replacement and here we investigate how well partial pumice substitutions for coarse aggregate and M sand substitutions of fine aggregate can gain sufficient strength. Based on the experimental results, the current thesis compares the properties of conventional and replaced concrete for the various percentages of pumice stone replacement to coarse aggregate. It concludes that a 25% partial replacement by pumice yields the maximum compressive strength. We also studied the durability parameters in the present paper.

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“…Some studies have shown that the incorporation of SCMs reduces just not reduces the permeability of concrete but also the rate of corrosion in the embedded rebar. [30,31]. The inclusion of GGBS in concrete can effectively be utilized to reduce the cumulate pore volume and to further improve the cement hydrate system which results in decreasing the chloride ions penetration [32].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Corrosion Inhibiting Admixture and Supplementary Cementitious Material on Early Strength Concrete

Reddy,

Vijay,

Kavyatheja

et al. 2024

Preprint

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This research aimed to evaluate the influence of alccofine on a mineral admixture and sodium nitrite as a corrosion inhibitor on the properties of concrete. To achieve these aims, an experimental investigation was carried out on a set of composite samples comprising five distinct concrete formulations. Five different mixes for the concrete were used as the overlay materials such as NC as a reference concrete, alccofine concrete (i.e. 25% cement replaced with alccofine), and alccofine concrete with varying dosages of sodium nitrite (i.e. 1%, 1.25%, and 1.5%). Corrosion properties of the concrete samples were examined using open circuit potentials and linear polarization resistance of various concrete mixes after being immersed in 1M H2SO4 and 3% NaCl environment. The findings indicated a notable improvement in the corrosion resistance, water absorption test, thermal conductivity, strength properties, and microstructural properties of concrete with the incorporation of SN in combination with alccofine. The application of the response surface method allowed for the prediction, validation, and optimization of experimental data using a regression equation.

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Mechanical performance enhancement of recycled aggregate concrete using GGBS and fly ash for sustainable construction

Cited by 7 publications

References 23 publications

Exploring the Impact of Alccofine and Quarry Dust on Compressive and Split Tensile Strength of Concrete

Exploring the Impact of Alccofine and Quarry Dust on Compressive and Split Tensile Strength of Concrete

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

Impacts of Corrosion Inhibiting Admixture and Supplementary Cementitious Material on Early Strength Concrete

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