Study of the Strength Characteristics of Protein-Based Lightweight Foamed Concrete With Cement Partially Replaced With Rice Husk Ash

Coker, EB; Sadiku, S.; Aguwa, J. I.; Abdullahi, M.

doi:10.4314/njt.v35i4.2

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…However, the three varieties contain reasonable amount of silica. The total percentage composition of iron oxide (Fe2 O3), Silicon dioxide (SiO2 ) and Aluminum Oxide (Al2O3) at 600 0 C for 4hours and 400 0 C for 6hours was found to be [12] and can be classified as class N Pozzolan according to Coker, et al [13]. These values are higher than the 48.36% value obtained for acha husk ash by Dashan et al [14] and as such, RHA is more pozzolanic but are slightly lower than the 73.15% value obtained by Oyetola and Abdullah [15].…”

Section: Results Of Physical Characteristics Of the Rice Huskmentioning

confidence: 99%

Microstructural characterisation, physical and chemical properties of rice husk ash as viable Pozzolan in building material: a case study of some Nigerian grown rice varieties

Abiodun

Jimoh

2018

Nig. J. Tech.

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Recycling of agricultural wastes such as rice husk ash as pozzolan is being increasingly encouraged, particularly in developing countries. In this paper, preliminary investigation on the physical and chemical compositions of rice husk ash using different techniques was carried out. Scanning Electron Microscopy (SEM) images of the rice husk ash showed residual pores to be distributed within the ash sample, indicating that the silica is a highly porous material with a large internal surface area. Samples burnt at 400 0 C for 6 hours and 600 0 C for 4 hours for 'Bukus' and 'Soro/ Olomo nla' show aggregates with clearly defined layers of loose flakes compared to 'Faro 58'. The Energy dispersive xray spectroscopy (EDX) analysis of rice husk ash performed to determine percentages of silica present in the samples were graphically represented. Nine elements (Al, Si, K, Ca, Br, Fe, Mg, Na, Mn) and their corresponding oxides (Al2O3, SiO2, K2O, CaO, Br, Fe2O3, MgO, Na2O, MnO) were detected with varying concentrations. The three varieties, on the average possess good silica content of over 50% considering the two varied temperature and time. Therefore, the chemical analysis results show that burning at combustion temperature of 600 0 C for 4hrs, gives optimal result than at 400 0 C for 6hrs because all the samples show high Silica content (Faro 58; 61.9, Bukus; 62.6 and Soro/Olomo nla; 59.5).

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Section: Results Of Physical Characteristics Of the Rice Huskmentioning

confidence: 99%

Microstructural characterisation, physical and chemical properties of rice husk ash as viable Pozzolan in building material: a case study of some Nigerian grown rice varieties

Abiodun

Jimoh

2018

Nig. J. Tech.

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“…However, according to Coker et al, [20], the strength gain increases as the LFC takes longer to cure. They claimed that adding foam to concrete causes air voids or pore spaces in addition to increasing the overall amount of water present in the pore spaces inside the concrete mass or the water-to-binder ratio.…”

Section: Literature Reviewmentioning

confidence: 97%

Influence of Crisscross Fiberglass Strip on Axial Compressive Strength of Lightweight Foamed Concrete

Mydin

Khalid

Omar

et al. 2023

ARASET

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Concrete use as a building component is already associated with the global construction sector. Since extensive research on concrete has been conducted for many years, there is a growing interest among researchers to conduct studies to increase the capacity of concrete for use in the building sector. Lightweight foamed concrete is one of the cutting-edge solutions developed for lighter and more sustainable buildings. Although this type of concrete has several benefits, its strength is still viewed as being inferior to that of regular concrete. By limiting the LFC with a crisscross fiberglass strip, the authors of this work will demonstrate improvements in LFC behaviour in terms of its compressive strength (CFS). To examine its improvements, 3 different LFC densities were cast and contained with 1 to 3 layers of 160 g/m2 CFS. For this test, the cement-to-sand ratio was fixed at 1.1:5, and the water content was set at 0.45. The results revealed that the compressive strength of LFC confined with 1 to 3 layers of CFS increased by 153%, 97% and 102% were acquired for 600, 1100 and 1600 kg/m3 densities respectively. This demonstrates that the number of layers used affects how positively the confinement of CFS affects the compressive behaviour of LFC.

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“…According to Coker et. al [16] the longer the time of curing the lightweight foamed concrete specimen, the higher the strength gained.…”

Section: Compressive Strengthmentioning

confidence: 99%

Mercerization Effect on Mechanical Properties of Empty Fruit Bunch Fibre in Reinforcing Low Densities Lightweight Foamed Concrete

2019

ijrte

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Due to the minimum cost, availability and renewable character, natural fibre had managed to grab the attention of researchers to utilize this industrial waste as industrial and structural material to restore the structures. This is due to the renewable nature of the fibre, minimal cost, low density and the amenability towards the chemical modification. The purpose of this paper is to oversee the reaction of empty fruit bunches fibre in the low densities of lightweight foamed concrete after been modified with the different percentages of alkali treatment using sodium hydroxide (NaOH). The effect of this fibre chemical treatment (2%-10% sodium hydroxide chemical treatment) on the mechanical properties of lightweight foamed concrete was investigated expansively. There were three different densities of lightweight foamed concrete (500kg/m3 , 700kg/m3 and 900kg/m3 ) used in this study. There were three different experimental test conducted to determine the lightweight foamed concrete strengths which were axial compressive strength test, flexural test and splitting tensile strength. The test result shows that 6% of sodium hydroxide chemical treatment of empty fruit bunches fibre offered the best results. The result showed that the highest strength result is obtained from 900kg/m3 density of lightweight foamed concrete with 6% sodium hydroxide treatment on the empty fruit bunches fibre while the lowest strength was obtained by 500kg/m3 lightweight foamed concrete with 0% of sodium hydroxide treatment on the fibre. Out of 257% of intensification in axial compressive strength test, 88% were showed in flexural strength test and 61% increase in splitting tensile strength test.

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Study of the Strength Characteristics of Protein-Based Lightweight Foamed Concrete With Cement Partially Replaced With Rice Husk Ash

Cited by 6 publications

References 3 publications

Microstructural characterisation, physical and chemical properties of rice husk ash as viable Pozzolan in building material: a case study of some Nigerian grown rice varieties

Microstructural characterisation, physical and chemical properties of rice husk ash as viable Pozzolan in building material: a case study of some Nigerian grown rice varieties

Influence of Crisscross Fiberglass Strip on Axial Compressive Strength of Lightweight Foamed Concrete

Mercerization Effect on Mechanical Properties of Empty Fruit Bunch Fibre in Reinforcing Low Densities Lightweight Foamed Concrete

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