Physical and Mechanical Properties Evaluation of Corncob and Sawdust Cement Bonded Ceiling Boards

Atoyebi, O. D.; Olalekan, Odeyemi Samson; Olugbenga, Azeez Lateef; Modupe, A. E.

doi:10.4028/www.scientific.net/jera.42.65

Cited by 15 publications

(1 citation statement)

References 28 publications

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“…Some other benefits of using lightweight concrete includes improved thermal specifications, better fire resistance, and dead load reduction which result in lower cost of labour. Many agricultural and industrial bye-products with little or no economic benefit could gainfully be used as building materials [6,[12][13][14][15][16][17][18][19][20][21][22]. Concrete with inadequate curing shows a lot of distress such as plastic shrinkage and cracking.…”

Section: Introductionmentioning

confidence: 99%

Effect of Curing Methods on the Compressive Strengths of Palm Kernel Shell Concrete

Odeyemi¹,

Abdulwahab²,

Anifowose³

et al. 2021

cea

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Appropriate curing of concrete is necessary to obtain maximum durability and achieve designed strength for concrete exposed to different environmental conditions. Curing is regarded as the means of regulating the degree and extent of loss of moisture from concrete when the cement in the concrete is undergoing hydration. This study made a comparative study of the consequence of adopting different methods of curing on the compressive strength of concrete modified with Palm Kernel Shell (PKS) aggregate. Concrete cube specimens of mix ratio 1:1:2 were cast with water-cement ratio of 0.55. The specimens were cured using four (4) different procedures: immersion, sprinkling, wet-curing and open-air. The concrete samples were tested for their compressive strengths at ages 7, 14, 21 and 28 days of curing. The results obtained show that immersion method of curing has the highest compressive strength at 28 days with a value of 17.07 N/mm 2 . This was followed by the sprinkling method of curing with 15.78 N/mm 2 . Wet-curing method has a compressive strength of 14.48 N/mm 2 and open-air curing has compressive strength of 13.11 N/mm 2 . It was concluded that immersion and sprinkling methods are suitable methods for curing PKS concrete.

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Section: Introductionmentioning

confidence: 99%

Effect of Curing Methods on the Compressive Strengths of Palm Kernel Shell Concrete

Odeyemi¹,

Abdulwahab²,

Anifowose³

et al. 2021

cea

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Effect of groundnut (Arachis hypogaea) shell ash on the properties of periwinkle shell, sawdust and cement-bonded particle boards

Odeyemi

Adisa

Olaoye

et al. 2023

Innov. Infrastruct. Solut.

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In modern times, depleting resources have necessitated research on renewable and recyclable materials for particleboard production. This research is centered on using Groundnut Shell Ash (GSA) as a pozzolan for partially replacing cement in the production of Cement-Bonded Particle boards. A mix proportion of 40%, 33% and 27% for cement, periwinkle shell and sawdust respectively as recommended in the work of Odeyemi and others in 2020 was adopted in producing the boards. The cement was replaced with GSA at 0%, 4%, 8% and 12% respectively after which their physical and mechanical properties were determined. The densities of the boards ranged from 2330 to 2760 kg/m 3 , water absorption ranged from 4.2 to 5.74% (in 2 h) and 5.8 to 9.08 (in 24 h) while the thickness swelling ranged from 3.21 to 5.12% (in 2 h) and 6.73 to 7.92% (in 24 h). The Modulus of rupture and Modulus of Elasticity ranged from 1368.45 to 5129 N/mm 2 and 1594.38 N/mm 2 to 2161.23 N/ mm 2 respectively. These results fall within the acceptable limits of the American Standard Institute. Therefore, GSA is a suitable partial replacement for cement in producing cement-bonded particle boards.

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Assessment of the reliability of the system for the erection of buildings from blocks of retained formwork of cement-particle boards

Svintsov

Noor

2023

Asian J Civ Eng

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Physical and Mechanical Properties Evaluation of Corncob and Sawdust Cement Bonded Ceiling Boards

Cited by 15 publications

References 28 publications

Effect of Curing Methods on the Compressive Strengths of Palm Kernel Shell Concrete

Effect of Curing Methods on the Compressive Strengths of Palm Kernel Shell Concrete

Effect of groundnut (Arachis hypogaea) shell ash on the properties of periwinkle shell, sawdust and cement-bonded particle boards

Assessment of the reliability of the system for the erection of buildings from blocks of retained formwork of cement-particle boards

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