An Experimental Investigation on the Mechanical Properties of Bottom Ash Concrete

Balasubramaniam, T.; Thirugnanam, G.

doi:10.17485/ijst/2015/v8i10/54307

Cited by 20 publications

(6 citation statements)

References 13 publications

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“…Consequently, more water was required to continue the strength improvement of the specimen by replacing sand volume with CBA aggregates. The test results of this research are consistent with those reported in previous investigations (Balasubramaniam & Thirugnanam, 2015;Muthusamy et al, 2021). Similar to LFCs with sieve sizes smaller than 4.75 mm and smaller than 2.36 mm, the compressive strength of LFC with the fine aggregates smaller than 0.6 mm was increased by replacing mining sand with CBA particles.…”

Section: Compressive Strength Developmentsupporting

confidence: 93%

Valorization of Diverse Sizes of Coal Bottom Ash as Fine Aggregate in the Performance of Lightweight Foamed Concrete

Haddadian

Alengaram

Alnahhal

et al. 2022

Journal of Civil Engineering and Management

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In recent years, research work on the use of coal bottom ash (CBA) as a partial alternative for aggregate in concrete is on the rise. This research is aimed at examining the characteristics of lightweight foamed concrete with CBA as fine aggregate to produce environmentally sustainable product. With the volume replacement technique, CBA was used as 25%, 50%, 75%, and 100% replacement for conventional mining sand with different sieve sizes of smaller than 4.75, 2.36, and 0.6 mm in concrete. Water absorption, porosity as well as mechanical characteristics tests, including compressive strength, splitting tensile strength, and modulus of elasticity (MOE) were conducted and analyzed. X-ray diffraction and scanning electron microscopy microstructural investigations were also performed to correlate test results. The quality of concrete was investigated using a non-destructive ultrasonic pulse velocity test. According to the findings, the highest replacement level of CBA with a sieve size smaller than 0.6 mm had an impact in reducing workability. The effect of CBA particles on water absorption, MOE, compressive strength, and tensile strength depends on the size of the fine aggregate, the replacement ratio and the density. In general, substituting mining sand with CBA aggregate improved the mechanical performance of concrete, notably for the aggregate size of less than 0.6 mm. Moreover, the SEM images indicate that the addition of CBA particles decreased the size and quantity of voids in the foamed concrete.

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Section: Compressive Strength Developmentsupporting

confidence: 93%

Valorization of Diverse Sizes of Coal Bottom Ash as Fine Aggregate in the Performance of Lightweight Foamed Concrete

Haddadian

Alengaram

Alnahhal

et al. 2022

Journal of Civil Engineering and Management

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“…The loss of workability for UHPFRC with GCW-GS when increasing the percentage of substitution concurs with the results obtained in other studies when incorporating waste of granite stone slurry as an alternative to the finest aggregate [6].…”

Section: Workabilitysupporting

confidence: 90%

“…According to the 2018 Eurostat about waste in the European Union, the mining and quarrying sector generates 26% of the total waste, and was the second highest generator of waste in the EU in 2018 [1]. In recent years, various studies have analyzed the use of mining waste in the manufacture of concrete [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Gayarre¹,

González²,

Boadella³

et al. 2021

Preprint

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The purpose of this study is to analyse the feasibility of using waste from granite gang saws (GCW-GS) to manufacture ultra-high performance, steel-fibre reinforced concrete (UHPFRC). These machines cut granite blocks by abrasion using a steel blade and slurry containing fine steel grit. The waste generated by gang saws (GCW-GS) contains up to 15% Fe2O3 and up to 5% CaO. This is the main difference from the waste produced by diamond saws (GCW-D). Consequently, the second objective of this study is to compare the results of the waste obtained with gang saws with that from diamond saws, in order to determine the influence of iron and calcium oxides. The waste from cutting granite with gang saws was used in different percentages to replace micronized quartz powder of natural origin in the manufacture of UHPRFC. All the test specimens were analysed to determine their compressive strength, elasticity modulus, flexural strength and indirect tensile strength. The final conclusion is that wastes from both gang saws and diamond saws can be used to manufacture UHPFRC with an improvement in the mechanical properties up to a 35% replacement. The results for GCW-GS are better, mainly due to the pozzolanic effect of the iron dioxide. For higher percentage replacements the mechanical properties are close to the control concrete with small decreases.

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“…The obtained sand was washed thoroughly after collection in order to remove dirt and other impurities. Furthermore, after washing process, the residual quantity of sand was dried through an oven for 1 day at temperature of 110 0 C. The gradation analysis by wet sieving method used to analyze the grain size of sand [17].…”

Section: Collection Modification and Gradation Analysis Of River Sandmentioning

confidence: 99%

Synthetic Grey Water Treatment Through FeCl3-Activated Carbon Obtained from Cotton Stalks and River Sand

et al. 2019

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The research objective was to reclaim greywater through simple, easily available, and cost-effective methods. For this purpose, an activated charcoal was prepared from biomass (cotton stalk) through the pyrolysis process and sand collected from river Indus. Both materials were subjected to separate columns and applied as filters. Whereas, the efficiency of both materials as filter media was analyzed on the synthetic grey water (SGW). The formulation of synthetic greywater was a complicated process because the selection of ingredients and their amount should not exceed from the real grey water. So, for the presence of fecal contamination, a small amount (10 ml L-1) of settled sewage was added to the distilled water, while to mimic the organic load, several chemical products of technical grade were also added. The physicochemical and microbiological characteristics of this SGW were tested before and after treatment. The results show that both mediums (AC and river sand) were very effective in the greywater treatment. The removal efficiency for BOD and COD was up to 91.2%, and 70% respectively. Similarly, the removal measure for turbidity was 91.3%. While the pH showed that the synthetic grey water was alkaline in nature with a value of 10 because the washing detergents used during the preparation of SGW, but after passing through both filter columns, pH was observed in between 7 and 8 units. Furthermore, the removal value examined after passing SGW from both columns for total coliforms was 46.87 CFU/100 ml from1500 CFU/100 ml.

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An Experimental Investigation on the Mechanical Properties of Bottom Ash Concrete

Cited by 20 publications

References 13 publications

Valorization of Diverse Sizes of Coal Bottom Ash as Fine Aggregate in the Performance of Lightweight Foamed Concrete

Valorization of Diverse Sizes of Coal Bottom Ash as Fine Aggregate in the Performance of Lightweight Foamed Concrete

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Synthetic Grey Water Treatment Through FeCl3-Activated Carbon Obtained from Cotton Stalks and River Sand

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