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The leftover after calcination of periwinkle shells yield periwinkle shell ash (PSA). Chemical and microstructural analysis of PSA conducted by [16, 18, 19] shows that its major chemical composition is CaO (usually being the highest percentage of chemical compounds) which is closely related to that obtained for lime and cement [20, 21].
Periwinkle shell ash calcined at 800 and 1000 ˚C shows satisfactory result in terms of fineness, chemical composition and 28 days compressive strength activity index and could be used as partial ...
Table 1 and Table 2 summarises the physical and chemical properties of Periwinkle shell ash which used as partial cement replacement. The specific gravity of Periwinkle shell …
Highlights. •. The use of solid waste materials as alternative materials in concrete production. •. The use of sustainable materials such as seashell as binder in …
This review paper emphasis on various sea shells ash such as cockle, clam, oyster, mollusc, periwinkle, snail, and green mussel shell ash as partial cement replacement and its objective is to ...
Results The chemical composition of the periwinkle shell (PWK) is shown in table 2 and fig 1. Where: P is the breaking load, Lis the span Length, b is the sample breath and d is the sample depth. Modulus of Elasticity (MOE) The Composite stiffness (MOE) was obtained using equation 5 [6]. 13 m 4b d 3 x 100 Where: E is the elongation at failure ...
The chemical composition of the ash was determined and compared with the specifications of American society of testing and material. Compressive strength of percentage replacement of cement with periwinkle shell ash of 0, 10, 20, 30 and 40% at 28 days of curing was also determined with mix ratio of 1:1:2 and 1:2:4.
The chemical composition of the periwinkle shell ash is presented in Table 2, while chemical composition of OPC is presented in Table 3. The engineering property test for lateritic soil stabilization with PSA is presented in Table 4.
This study investigated the effect of oyster shell ash (OSA) on the geotechnical properties of lateritic soil. Laboratory studies were performed using lateritic soil treated with up to 15 % OSA. The result shows a decrease in maximum dry density (MDD) with corresponding increase in optimum moisture content (OMC). Unconfined …
The chemical composition of RH and PWS have been found to be 94.5% and 33.8% by weight, respectively, of ... Periwinkle shell ash exhibited the density of 1.24 kg/cm3 (Aku et al., 2012) and this indicated that periwinkle shell particles will be more suitable as filler material (Aigbodion and .
The periwinkle shells of two separate samples, Ash periwinkle shell powder (APsP) and an Un-ash periwinkle shell powder (UAPsP) were characterized using Xray Fluorescence (XRF).
Remarkably, the % composition of the anatase decreased as the doping of PSA increased in the kaolin substrate, hence all wt % ... Assessment of Physico-chemical properties of periwinkle shell ash as partial replacement for cement in concrete. Int J Sci Eng Sci., 1 (2017), pp. 33-36. Google Scholar
The chemical composition of seashells varies according to the type of shells and the place of collections. Generally, most available literatures report the chemical composition of the burnt seashell waste materials. ... The effect of calcination temperature on the chemical composition of oyster, periwinkle and snail shell ash. Int. J. Renew ...
Massive periwinkle harvesting is also reported from some communities in Bayelsa, Cross River and Edo states of Nigeria [15, 16]. According to Aku et al. [17], the periwinkle shell particle exhibited a density of 1.24g/cm. 3. Structurally, the periwinkle shell has several layers and is typically made of an
The physical properties and chemical composition of seashells have been reviewed. • The mechanical and durability properties of concrete containing seashells …
The chemical composition of the ash was determined and compared with the specifications of American society of testing and material. Compressive strength of percentage replacement of cement with periwinkle shell ash of 0, 10, 20, 30 and 40% at 28 days of curing was also determined with mix ratio of 1:1:2 and 1:2:4.
Offiong and Akpan (2017) [6] conducted research to assess the physio-chemical properties of periwinkle shell ash (PSA), a byproduct of periwinkle when used to partially replace cement in concrete ...
CHEMICAL COMPOSITION OF OYSTER, PERIWINKLE AND SNAIL SHELL ASH Anieti-mfon E. Inyang1, Benjamin R. Etuk2 1Department of Chemical and Petroleum Engineering, University of Uyo, Uyo 52001, Nigeria ... The chemical composition of the OPC used as control and the shell ashes are given in Table 1. The results show that the cement used, …
Table 1: Chemical composition of Periwinkle shell ash and ordinary Portland cement Elemental Oxides Weight (%) PSA Weight (%) OPC CaO 0.342.32 61.14 MgO 42.32 1.35 K 2
In this work, periwinkle shell ash reinforced polyethylene composite was developed under variation of the filler weight (5, 10, 15 and 20) %wt using compression moulding method. …
The periwinkle shells used for this study were obtained from a dump site at Ikot Ebido Oku, Uyo, Akwa Ibom State, Nigeria. The periwinkle shells was washed, air dried and calcined to a temperature of 1000oC. The calcined shell was brought out of the oven, allowed to cool and grinded to powdered form. The PSA was
This review paper emphasis on various sea shells ash such as cockle, clam, oyster, mollusc, periwinkle, snail, and green mussel shell ash as partial cement replacement and its objective is to ...
kle shells yield periwinkle shell ash (PSA). Chemical and microstructural analysis of PSA conducted by [1618,, 19] shows that its major chemical composition is CaO (usually being the highest percentage of chemical compounds) which is closely related to that obtained for lime and cement [20, 21].
Studies on periwinkle composites (PCM) in adsorption and photocatalysis, showed effectiveness in both neutral, acidic, and alkaline mediums in the removal of wastewater effluents.
The chemical composition of the periwinkle shell ash is presented in Table 2, while chemical composition of OPC is presented in Table 3. The engineering property test for lateritic soil stabilization with PSA is presented in Table 4. Table 5 shows the engineering property for lateritic soil stabilized with OPC. ...
The chemical composition of the ash was determined and compared with the specifications of American society of testing and material. Compressive strength of percentage replacement of cement with periwinkle shell …
Chemical Composition of Periwinkle Shell aggregate Some of the major chemical components of periwinkle shells aggregate are CaO 2 (81.0%), SiO 2 (6.75%), and MgO (3.07%), AI 2 O 3
4.1 Chemical Composition of Periwinkle shell ash by XRF Analysis - - - - 40 4.1.2 XRD Analysis of Al-Cu-Mg/PWAp composite - - - - - - 41 4.1.3 SEM/EDS Analysis of Composites Produced - - - - - - - 42 4.1.4 Physical Properties of the Composites produced - - - - - - - 44 4.1.5 Mechanical Properties of the Composites produced - - - - - - 45 ...
The chemical composition of the seashell might be affected by pollution levels or the seashell's geographical location. According ... at 90 days, elasticity improved for 0 (29.02 GPa) and 10% (27.82 GPa) of periwinkle shell ash mixed cement concrete, while there was a reduction for 20 (25.65 GPa), 30 (24.95 GPa), and 40% (21.75 GPa ...
low fat content makes periwinkle meat a good antidote for hypertensive patient and those that have fat related diseases like arteriosclerosis23. Table 1: Proximate Composition of Periwinkle Components % Ash 9.56 Moisture 13.45 Crude Protein 74.74 Crude Fat 1.32 0.74 Carbohydrate (By difference) 0.19