Effect of sisal fibre on partially replaced cement with Periwinkles Shell Ash (PSA) concrete [PDF]
Journal of Applied Sciences and Environmental Management, 2019 An investigation on the effect of sisal fiber on partially replaced cement with Periwinkle Shell Ash in Concrete was carried out. Sisal fiber of 40mm length which forms 1% of the mix by weight with Periwinkle shell Ash as a partial replacement for ...
J.O. Afolayan, U.N. Wilson, B Zaphaniah
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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.
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Behaviour of periwinkle shell ash blended cement concrete in sulphuric acid environment [PDF]
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 a constant water cement ratio of 0.6 was used. A total of 180 cube specimens (150mm x 150mm x 150mm)
Attah, I.C., Etim, R.K., Ekpo, D.U.
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INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2023 Recently, the stabilization of clayey soil (CS) has drawn the attention of numerous researchers. In the past, Egg Shell Powder (ESP) and Periwinkle Shell Ash (PSA) were individually tested for their ability to stabilize clayey soil. The author has attempted to stabilize the clayey soil by combining the two of them.
exaly +2 more sources
Comparative Evaluation of Concrete Properties with Varying Proportions of Periwinkle Shell and Bamboo Leaf Ashes Replacing Cement [PDF]
Ethiopian Journal of Environmental Studies and Management, 2013 The paper examined the performance of ternary blended cement concrete incorporating periwinkle shell ash (PSA) and bamboo leaf ash (BLA) as cement supplements. PSA and BLA were obtained by burning periwinkle shell and bamboo leaves in a furnace at a temperature of 600oC for 20 minutes. The chemical analysis of the ashes revealed that they are amorphous
Umoh, AA, Femi, OO
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Improving the strength performance of high volume periwinkle shell ash blended cement concrete with sodium nitrate as accelerator [PDF]
Journal of Civil Engineering, Science and Technology, 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 was used as the reference.
Akaninyene A. Umoh, Anthony O. Ujene
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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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Variety in responses of wintering oystercatchers Haematopus ostralegus to near-collapse of their prey in the Exe Estuary, UK. [PDF]
Ecol Evol, 2022 For many waders reliant on intertidal mudflats, the prey landscape has changed, which may require behavioral adaptations for survival. GPS tracking devices were deployed on 24 wintering Eurasian oystercatchers in a declining population in the Exe Estuary, UK. Adults were consistent in their foraging locations both intra‐ and inter‐annually, whereas sub‐
Morten JM +5 more
europepmc +2 more sources
Development of Ecofriendly Snail Shell Particulate-Reinforced Recycled Waste Plastic Composites for Automobile Application. [PDF]
ScientificWorldJournal, 2020 The increase in demand for thermoplastics as a light‐weight material for automobile application and other commercial purposes prompts more research into the available polymer resources. In this research, the possibility of enhancing the performance of recycled waste plastics (RWP) as polymer‐based composites was examined.
Oladele IO +5 more
europepmc +2 more sources
Commodity risk assessment of Malus domestica plants from Turkey. [PDF]
EFSA J, 2022 Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by dormant grafted plants, rootstocks, budwood and ...
EFSA Panel on Plant Health (PLH) +31 more
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