Results 11 to 20 of about 171 (64)
Performance of Periwinkle Shell Ash Blended Cement Concrete Exposed to Magnesium Sulphate [PDF]
Civil Engineering Dimension, 2013 The study examined the compressive strength of periwinkle shell ash (PSA) blended cement concrete in magnesium sulphate medium. Specimens were prepared from designed characteristics strength of 25 MPa. The cement replacement with PSA ranged between 0 and
Umoh A.A., Olusola K.O.
doaj +7 more sources
Behaviour of periwinkle shell ash blended cement concrete in sulphuric acid environment
Nigerian Journal of Technology, 2018 This paper presents the influence of sulphuric acid on compressive strength of concrete made with cement blended with periwinkle shell ash (PSA). The cement component was replaced with PSA at 0 %, 5 %, 10 %, 15 % and 20 %. Concrete mix ratio of 1:2:4 and
Attah, I.C., Etim, R.K., Ekpo, D.U.
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, 2015 The objective of this study is to examine the effect of accelerator (NaNO3) on the strength properties of High volume Periwinkle shell ash blended cement concrete. A mix ratio and water-binder ratio of 1:2:4 (cement: sand: gravel) and 0.60, respectively
Ujene, Anthony O., Umoh, Akaninyene A.
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HETEROGENEOUS PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS SUSPENSION OF PERIWINKLE SHELL ASH CATALYST IN THE PRESENCE OF UV FROM SUNLIGHT [PDF]
Journal of Engineering Science and Technology, 2015 The batch photocatalytic degradation of phenol in aqueous solution wasinvestigated using periwinkle shell ash (PSA) as photocatalyst. Chemical characterisation of the PSA revealed that the major oxides present were calcium oxide (CaO), silica (SiO2) and ...
OSARUMWENSE, J. O. +2 more
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POTENTIAL APPLICATION OF A LOCALLY SOURCED PHOTOCATALYST FOR THE PHOTOCATALYTIC DECOLOURISATION OF METHYL ORANGE IN AQUEOUS SOLUTION [PDF]
Journal of Engineering Science and Technology, 2015 Periwinkle shell ash (PSA) was investigated for its photocatalytic properties in decolourising methyl orange in aqueous solution. The effects of irradiation time, initial dye concentration and PSA dosage on the decolourisation process were investigated ...
F. A. AISIEN +2 more
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, 2015 The potential of locally sourced periwinkle shell ash (PSA) has been explored as an alternative photocatalyst for the photocatalytic decolourisation of Congo red dye.
Aisien, Felix Aibuedefe +2 more
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Photoadsorption and reaction mechanism of periwinkle shell ash in the removal of hazardous dye
Water practice and technology, 2023 Combined adsorption and photocatalysis synergy was explored in this research because the porosity of activated carbon and hydroxyl radicals' generation are the main drivers of the adsorption and photodecomposition efficiency of dyes.
A. Nkwoada +3 more
semanticscholar +1 more source
International journal of mechanical and civil engineering, 2022 Periwinkle shellfish can be found in abundance in the Niger Delta's wetlands. Periwinkle shells are frequently piled in open fields and landfills, resulting in pollution and the development of disease-carrying organisms. Attempts have been made to employ
Mac-Eteli H.D., Nelson T.A.
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The Future and Prospects of Periwinkle Composites in Reinforced Concretes: A Review
Journal of Engineering Research and Reports, 2021 The choice of building materials and the rising cost of construction materials have continued to plaque the building and construction industry without an immediate solution.
N. Amarachi +3 more
semanticscholar +1 more source
Journal of Cleaner Production, 2022 Biodiesel has been referred to as a perfect substitute for diesel fuel because of its numerous promising properties. They are renewable, clean, increase energy security, and improve the environment.
C. P. Okonkwo +4 more
semanticscholar +1 more source