Comparison study of Bottom Ash Aggregate and Washed Bottom Ash Aggregate in concrete: Physical aspect

Abstract.In this paper, the freeze-thaw performance of concrete using granulated blast-furnace slag (GBS) as fine aggregate was studied. According to the test method for slow freezing and thawing, degradation of mechanical properties about GBS concrete with 2 kinds W/B ratio and 3 kinds GBS replacement ratio were tested, and micromorphology of GBS concrete were analyzed by scanning electron microscopy (SEM). Furthermore, relations between degradation of mechanical properties and micromorphology about GBS concrete are discussed. Test results show that: after freeze-thaw cycles, the relative compressive strength of GBS concrete is greater than ordinary river sand concrete, and the GBS concrete will produce more mutual interlacing fibrous and flowers from crystal, the growth of these crystals can improve the compressive strength of concrete. Therefore, the frost resistance of GBS concrete is little better than ordinary river sand concrete.

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Study on the Freeze-Thaw Performance of Concrete Using Granulated Blast-Furnace Slag as Fine Aggregate

Liu

Shi

Ding

2016

MATEC Web Conf.

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Enhancing Sustainable Concrete Investigating the Feasibility of POND ASH as a Partial Replacement for Fine Aggregate in GGBS-Based

Fasil T,

Periyasamy,

Seethapathi

et al. 2024

Mat. Sci. Res. India

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India uses more than 100 million cubic meters of concrete annually, making it the most common building material. It is common knowledge that traditional concrete constructed using compressive strength does not meet many functional requirements, including impermeability and frost resistance. By emitting a significant amount of CO2, the manufacture of Portland cement, a key component of concrete, has had disastrous effects on our ecosystem. When one tonne of cement materials is produced, one tonne of CO2 and other greenhouse gases are emitted. Additional cementitious materials must be used to efficiently substitute cement without compromising the required qualities of concrete. The samples were tested for durability properties like water and chloride permeability and mechanical properties for lengths of 7, 28, and 56 days. Mix M7 exhibits outstanding compressive strength progression, showcasing impressive results of 30.72 N/mm² at 14 days, followed by significant enhancement to 43.18 N/mm² at 28 days, and a robust 48.91 N/mm² at 56 days, making it a highly durable and high-performance concrete mix. In the study comparing the conventional mix and study mix (M1 to M8), the M7 mix exhibited a 28-day split tensile strength of 4.28 N/mm² and flexural strength of 9.657 N/mm². A significant amount of fly ash produced by the coal-based power station is recovered via huge ponds and dykes. It was revealed that 30% GGBS and 20% pond ash replacement of cement yielded the best results. According to research, there are industrial wastes that can replace up to 40% and 20% of the cement and fine aggregate in concrete by GGBS and Pond Ash, respectively.

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Enhancing Sustainable Concrete Investigating the Feasibility of POND ASH as a Partial Replacement for Fine Aggregate in GGBS-Based

Fasil,

Periyasamy,

Seethapathi

et al. 2024

Mat. Sci. Res. India

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Comparison study of Bottom Ash Aggregate and Washed Bottom Ash Aggregate in concrete: Physical aspect

Cited by 6 publications

References 17 publications

Study on the Freeze-Thaw Performance of Concrete Using Granulated Blast-Furnace Slag as Fine Aggregate

Study on the Freeze-Thaw Performance of Concrete Using Granulated Blast-Furnace Slag as Fine Aggregate

Enhancing Sustainable Concrete Investigating the Feasibility of POND ASH as a Partial Replacement for Fine Aggregate in GGBS-Based

Enhancing Sustainable Concrete Investigating the Feasibility of POND ASH as a Partial Replacement for Fine Aggregate in GGBS-Based

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