Results 11 to 20 of about 513 (164)

Production of Abrasive Sandpaper using Periwinkle Shells and Crab Shells

International Journal of Engineering Materials and Manufacture, 2020
In this study, the abrasive properties of periwinkle shell and crab shell grains with the binding effect of polyester resin at high concentration were evaluated.
YUSUF LANRE SHUAIB-BABATA, Ibrahim Owolabi Ambali, Lawal Babatunde Abdulqadir , Hassan Kobe Ibrahim, Ishaq Na’allah Aremu, Taofeek Olawale Ibraheem   +5 more
doaj   +3 more sources

Properties of Rice Husk Ash Concrete with Periwinkle Shell as Coarse Aggregates

Nigerian Journal of Technological Development, 2018
This research is aimed at investigating the properties of concrete made from 20% Rice Husk Ash (RHA) and 80% ordinary Portland cement (OPC) using granite in one part and periwinkle shell (PS) in varying proportion in the other, as coarse aggregates.
A. Aboshio, H. G. Shuaibu, M. T. Abdulwahab   +2 more
doaj   +6 more sources

Effects of Periwinkle Shell Ash on Lime-Stabilized Lateritic Soil

Journal of Applied Sciences and Environmental Management, 2017
This study assesses the effects of periwinkle shell ash (PSA) on lime-stabilized lateritic soil. Preliminary tests were carried out on the natural soil sample for the purposes of identification and classification. The soil sample was classified as A-7-5.
Emeka Segun Nnochiri
doaj   +3 more sources

Evaluation of the Influence of Salt Treatment on the Structure of Pyrolyzed Periwinkle Shell

Journal of Applied Sciences and Environmental Management, 2013
This paper investigates the effect of use zinc chloride in varying impregnation ratios ranging between 0.1 and 1.5 to chemically activate carbonized periwinkle shells. Studies to characterize the activated carbon were conducted at ambient conditions. The
CN Owabor, AI Iyaomolere
doaj   +3 more sources

COMPARATIVE STUDY AND EMPIRICAL MODELLING OF PULVERIZED COCONUT SHELL, PERIWINKLE SHELL AND PALM KERNEL SHELL AS A POZZOLANS IN CONCRETE

Acta Polytechnica, 2019
Infrastructural development across the world is fast growing due to the rapid growth in population. This has resulted in consequently creating an increase in the demand for construction materials, especially cement.
Efe Ewaen Ikponmwosa, Samuel Onosedeba Ehikhuenmen, Karieren Kate Irene   +2 more
doaj   +3 more sources

Production of glass ceramic from rice husk and periwinkle shells

Discover Materials
Glass ceramic was produced by replacing the major glass forming materials, silica and calcium oxide, with derivates from rice husk and periwinkle shells respectively.
B. Aremo, D. A. Isadare, O. E. Akinduro, O. E. Bello, M. O. Adeoye, S. A. Ayodeji, G. F. Abass, K. M. Oluwasegun   +7 more
doaj   +2 more sources

Local Conditions and Environmental Gradients Shape the Abundance and Size Structure of a Non-Native Intertidal Species in Atlantic North America. [PDF]

Ecol Evol
We investigated how density and body size of the non‐native intertidal snail Littorina littorea vary along a 10° latitudinal gradient (> 1700 km) in North America. Our analyses show that local substrate complexity drives density patterns, whereas body size is shaped by climatic factors, with higher and more variable summer temperatures reducing ...
Garlaschè G, Broitman BR, Riley C, Drolet D, Howland KL, McKindsey CW, Calosi P.   +6 more
europepmc   +2 more sources

Trematode infection buffers heat stress in blue mussels Mytilus edulis: The role of heat shock proteins. [PDF]

J Anim Ecol
The study shows that parasite infection changes heat shock protein expression and can increase heat tolerance in blue mussels. By separating parasite and temperature effects, the results suggest that infection may improve survival during heat stress, highlighting important parasite–host interactions for climate change resilience. Abstract The influence
Greve A, Sørensen JG, Sejr MK, Thyrring J.   +3 more
europepmc   +2 more sources

Experimental investigation of the performance of palm kernel shell and periwinkle shell as partial replacement for coarse aggregate in asphaltic concrete

Journal of Building Materials and Structures, 2016
Performance of non-conventional materials namely palm kernel shell (PKS) and periwinkle shell (PWS) were investigated. Sieve analysis, aggregate impact value (AIV), aggregate crushing value (ACV), bitumen penetration, Marshall Stability, flash and fire ...
Olugbenga Joseph Oyedepo, Ebenezer Omoniyi Olukanni   +1 more
doaj   +3 more sources

An Overview of the Applications of Periwinkle (Tympanotonus fuscatus) Shells

Current Journal of Applied Science and Technology, 2021
The waste generated by the periwinkle (Tympanotonus fuscatus) shell cannot be undermined. In coastal communities worldwide, periwinkle is a major source of proteins and other vital minerals in most delicacies. The shells of these aquatic species, notable for their nutrient provision, contribute to environmental degradation because of the indiscriminate
G. B. Lekia, V. J. Aimikhe
openaire   +2 more sources