Results 191 to 200 of about 397,996 (210)

Biomaterials from Periwinkle Shells: Composition and Functional Properties

2007
The study evaluated the composition and functional properties of chitosan from the shells of two species of periwinkle L. punctata and N. natalensis. The chitosan samples from both species had a moisture content of 7–8%, ash 86–87% and crude fibre of 4%.
openaire   +1 more source

Effect of periwinkle shell on the physical and mechanical properties of sandcrete block

2022
Periwinkle shells are waste products derived from Periwinkles. They can be recycled and processed either as fine aggregate, coarse aggregate, filler, or cement replacement. This study investigates crushed periwinkle shells' suitability as an alternate material for natural sand in sandcrete hollow blocks for sustainable infrastructure.
Davies, Iyinoluwa E. E., Adigio, Emmanuel M.   +1 more
openaire   +1 more source

Shell Growth in the Periwinkle, Littorina litorea

The American Naturalist, 1932
Green, C V, Green, S K
openaire   +1 more source

Production of concrete using laterite, periwinkle shell and river stone

2013
This paper presents the success recorded in producing concrete using laterite, periwinkle shell and river stone. Laterite was used to replace 100% of sand. Periwinkle shell replaces 50% by volume of the total coarse aggregate, while river stone made up the rest 50%.
Ibearugbulem, OM, Ettu, LO, Ezeh, JC
openaire   +1 more source

Characteristics of concrete produced with periwinkle and palm kernel shells as aggregates

2019
We assess the suitability of palm kernel shell (PKS) and periwinkle shell (PS) as partial or full replacement of fine and coarse aggregates respectively, in concrete production. First, the physical properties of PKS and PS were determined. Then concrete was produced using varying percentage replacements of 0%, 25%, 50% and 100% of fine and coarse ...
Dahiru, D, Yusuf, U.S., Paul, N.J.
openaire   +1 more source

Affordable housing issue: Experimental investigation on properties of eco-friendly lightweight concrete produced from incorporating periwinkle and palm kernel shells

Results in Engineering, 2021
Lekan M Amusan, Clinton O Aigbavboa, Oluwarotimi M Olofinnade   +2 more
exaly  

Use of periwinkle shell by-products in Portland cement-based materials: an overview

International Journal of Environment and Waste Management, 2020
Uchechi Eziefula
exaly  

Adsorption of methylene blue onto activated carbon derived from periwinkle shells: kinetics and equilibrium studies

Chemistry and Ecology, 2008
Olugbenga Solomon Bello, Ezekiel Oluwaseun Fehintola   +1 more
exaly  

Removal of Remazol Brilliant Violet-5R dye using periwinkle shells

Chemistry and Ecology, 2011
Mohd Azmier Ahmad, Olugbenga Solomon Bello   +1 more
exaly  

Physical and mechanical properties of cement-bonded particle board produced from African balsam tree () and periwinkle shell residues

Results in Engineering, 2020
Olumoyewa Dotun Atoyebi, R Abdulwahab, S O Odeyemi   +2 more
exaly