Composition, Technological, and Microstructural Aspects of Concrete Modified with Finely Ground Mussel Shell Powder

Stel’makh, Sergey A.; Shcherban’, Evgenii M.; Beskopylny, Alexey; Mailyan, Levon R.; Meskhi, Besarion; Tashpulatov, Salikh; Chernil’nik, Andrei; Shcherban’, Natalya; Tyutina, Anastasia

doi:10.3390/ma16010082

Cited by 15 publications

(6 citation statements)

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“…The new concrete also reduced the cost and defects of construction. This research has practical implications 10 . Belarus researchers tested to use of agricultural waste (e.g., rice husk ash, peanut shells, oak wood chips, coconut shells, and corn cobs) as aggregate substitutes.…”

Section: Introductionmentioning

confidence: 88%

Effect of biological shells aggregate on the mechanical properties and sustainability of concrete

Wang,

Yu,

et al. 2024

Sci Rep

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The recycling bio-waste shells problem has grown more and more serious in recent years and many efforts have been made to solve this problem. One possible solution is to put these bio-shells into concrete and recycle them as building materials using the aggregate matrix concrete approach. To verify the engineering feasibility, the mechanical properties of bio-shells aggregated concrete were invested via gradient substitution rates at 10%, 30%, and 50% with a total of 78 groups of specimens in this paper. Our results show that the mechanical properties of the concrete were enhanced in maximum flexural strength and maximum compressive. Economic performance was also analyzed and found that the costs of frame-shear structure, frame structure, and tube-in-tube structure were reduced by 10.2%, 10%, and 10.3%. The carbon environmental assessment also shows superiority in the carbon reduction of a single specimen with various rates of the shell. In summary, compared with ordinary concrete materials, it is very possible to use waste bio-shells as a substitute for aggregates to develop the sustainable recycling development of concrete materials.

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Section: Introductionmentioning

confidence: 88%

Effect of biological shells aggregate on the mechanical properties and sustainability of concrete

Wang,

Yu,

et al. 2024

Sci Rep

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“…This research has practical implications. [10] . Belarus researchers tested to use agricultural waste (e.g., rice husk ash, peanut shells, oak wood chips, coconut shells, and corn cobs) as aggregate substitutes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Biological shells aggregate on the Mechanical properties and sustainability of concrete

Wang,

LI,

2024

Preprint

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To solve waste bio-shell and put them into recycle, the researchers proposed using waste bio-shells as aggregate matrix for concrete. In order to determine the substitution amount of shells, the researchers used the orthogonal experimental method, and designed shell concrete experiments with gradient substitution rates at 10%, 30% and 50%, with a total of 78 groups of specimens. By analyzing the tensile, bending and frost resistance of these specimens, the experimental data show that adding shells as aggregate at 10%, 30% or 50% can improve the mechanical properties of the concrete, the maximum flexural strength can be increased by 3.96Mpa, the maximum compressive strength can be increased by 2.5Mpa, but with a degradation of frost resistance. With the investigate of economic performance, it was found that the costs of frame-shear structure, frame structure, and tube-in-tube structure were reduced by 10.2%, 10%, and 10.3% respectively. In the carbon environmental assessment, the carbon reduction of a single specimen with 10%, 30%, and 50% shell addition were 0.003, 0.0010, and 0.0015 kg respectively. In summary, compared with ordinary concrete materials, it is very possible to use waste bio-shells as a substitute for aggregates to develop the sustainable recycling development of concrete materials.

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“…The study presented in this article develops the ideas of the concept of sustainable environmentally friendly concrete, which implies the partial and complete replacement of the mineral components of concrete with natural and rapidly renewable analogues. Replacing large-mineral aggregate with walnut shells will partially eliminate complex mechanized and energy-intensive production processes associated with high greenhouse-gas emissions [ 36 , 37 , 38 , 39 , 40 , 41 , 42 ]. At the same time, it is important to find a balance between the strength and density of the resulting composite, so that a decrease in the SC of the material is accompanied by a commensurate decrease in the density of the material.…”

Section: Introductionmentioning

confidence: 99%

Effect of Walnut-Shell Additive on the Structure and Characteristics of Concrete

et al. 2023

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The partial replacement of the mineral components of concrete with natural renewable analogues in full possession of the performance characteristics of the final material, allows not only the concrete-production process to be made more environmentally friendly and inexpensive, but also to solve an important task for the agricultural industry, which is that associated with waste disposal. The scientific novelty of the work is in the obtaining of new concrete compositions by the partial replacement of coarse aggregate with a natural analogue in the form of a walnut shell, which has the maximum ratio of the strength of the composite to its density, as well as in identifying new dependencies of strength and density and their ratio on the amount of replacement of mineral coarse-aggregate walnut shell. The main goal of this article was to analyze the effect of composition factors on characteristics of concrete with partial replacement of large aggregates with walnut shells and to search for the optimal compound that would make it possible to obtain concrete with a minimum decrease in strength characteristics with a maximum decrease in concrete density. Cubes and prism laboratory samples were made from concrete of normal density with the replacement of coarse aggregate by 5, 10, 15, 20, 25 and 30%, by volume. The main mechanical properties, such as density, strength (compressive, tensile, tensile strength in bending) of the concrete samples were studied. The investigation used standard methods and scanning electron microscopy. An increase into strength characteristics up to 3.5%, as well as the maximum ratio of strength to density of concrete, was observed at a walnut-shell dosage of 5%. Effective partial replacement of coarse aggregate with walnut shells leads to a reduction in the consumption of crushed stone by up to 10% and a decrease in the mass of concrete by up to 6%.

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Composition, Technological, and Microstructural Aspects of Concrete Modified with Finely Ground Mussel Shell Powder

Cited by 15 publications

References 50 publications

Effect of biological shells aggregate on the mechanical properties and sustainability of concrete

Effect of biological shells aggregate on the mechanical properties and sustainability of concrete

Effect of Biological shells aggregate on the Mechanical properties and sustainability of concrete

Effect of Walnut-Shell Additive on the Structure and Characteristics of Concrete

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