Results 11 to 20 of about 157 (128)

Performance of Periwinkle Shell Ash Blended Cement Concrete Exposed to Magnesium Sulphate

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   +3 more sources

Use of Egg Shell Powder and Periwinkle Shell Ash to Strengthen the Engineering Properties of Clayey Soil

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

Response of two lateritic soils to cement kiln dust-periwinkle shell ash blends as road sub-base materials

International Journal of Pavement Research and Technology, 2020
The stabilization potential of cement kiln dust (CKD) and periwinkle shell ash (PSA) was investigated using laboratory analysis. This was aimed at evaluating the effect of CKD and PSA on the stabilization of two lateritic soils for use as pavement layer materials. Two soils (Soil A and B) were treated with various percentages (by weight of dry soil) of
David Ufot Ekpo, Adekemi Loretta Ayodele
exaly   +2 more sources

Optimization and Modeling of Cyanide Removal from Cassava Waste Water Using Calcined and Activated Adsorbent Mixtures of Oyster Shell and Periwinkle Shell Ash

Journal of Engineering Research and Reports, 2023
Cyanide, a toxic compound found in cassava wastewater which on frequent basis is discharged to the environment poses danger to the ecosystem; this research work aims to curb this menace. Temperature, pH, dosage, contact time, adsorbent mixture ratio and initial concentration were optimized using CCD on periwinkle-oyster shells composite mixtures for ...
Chukwunonso O. Njoku, B. R. Etuk
exaly   +2 more sources

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., AMENAGHAWON, N. A., AISIEN, F. A.   +2 more
doaj   +1 more source

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, Burrell RA, Frayling TD, Hoodless AN, Thurston W, Hawkes LA.   +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, Adediran AA, Akinwekomi AD, Adegun MH, Olumakinde OO, Daramola OO.   +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), Bragard C, Baptista P, Chatzivassiliou E, Gonthier P, Jaques Miret JA, Justesen AF, MacLeod A, Magnusson CS, Milonas P, Navas-Cortes JA, Parnell S, Potting R, Reignault PL, Stefani E, Thulke HH, Van der Werf W, Civera AV, Zappalà L, Lucchi A, Gómez P, Urek G, Bernardo U, Bubici G, Carluccio AV, Chiumenti M, Di Serio F, Fanelli E, Gardi C, Marzachì C, Mosbach-Schulz O, Yuen J.   +31 more
europepmc   +2 more sources

The Effect of Periwinkle Shell Ash (PSA) on Geotechnical Properties of Lateritic Soil for Road Construction Application

Platform, a Journal of Engineering
The study explores the enhancement of geotechnical characteristics of lateritic soil sourced from a popular burrow pit site in Kano State, Nigeria, by incorporating Periwinkle Shell Ash (PSA). The soil sample was mixed with 0 to 10% PSA content at 2%
Salisu Yusuf, Gambo Haruna Yunusa, Aminu Suleiman, Murtala Umar, Zaihasra Abu Talib   +4 more
doaj   +1 more source

Strength Characteristics of Oyster Shell Ash and Periwinkle Shell Ash Stabilized Lateritic Soil for Pavement Construction

, 2022
No description ...
OKE, Joy Ayankop, Obaji, Ndubuisi Okpa, Ikoya, Adewale Agustine, Oke, Joy   +3 more
openaire   +3 more sources