Performance of Periwinkle Shell Ash Blended Cement Concrete Exposed to Magnesium Sulphate [PDF]
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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HETEROGENEOUS PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS SUSPENSION OF PERIWINKLE SHELL ASH CATALYST IN THE PRESENCE OF UV FROM SUNLIGHT [PDF]
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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Improving the strength performance of high volume periwinkle shell ash blended cement concrete with sodium nitrate as accelerator [PDF]
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
Ujene, Anthony O., Umoh, Akaninyene A.
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Behaviour of periwinkle shell ash blended cement concrete in sulphuric acid environment [PDF]
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
Attah, I.C., Etim, R.K., Ekpo, D.U.
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POTENTIAL APPLICATION OF A LOCALLY SOURCED PHOTOCATALYST FOR THE PHOTOCATALYTIC DECOLOURISATION OF METHYL ORANGE IN AQUEOUS SOLUTION [PDF]
Periwinkle shell ash (PSA) was investigated for its photocatalytic properties in decolourising methyl orange in aqueous solution. The effects of irradiation time, initial dye concentration and PSA dosage on the decolourisation process were investigated ...
F. A. AISIEN +2 more
doaj
Comparative Evaluation of Concrete Properties with Varying Proportions of Periwinkle Shell and Bamboo Leaf Ashes Replacing Cement [PDF]
The paper examined the performance of ternary blended cement concrete incorporating periwinkle shell ash (PSA) and bamboo leaf ash (BLA) as cement supplements.
Umoh, AA, Femi, OO
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Assessing the Mechanical Performance of Ternary Blended Cement Concrete Incorporating Periwinkle Shell and Bamboo Leaf Ashes [PDF]
The study investigates the mechanical properties of concrete incorporating Periwinkle Shell Ash (PSA) and Bamboo Leaf Ash (BLA) as cementitious binders. Concrete cube (100mm) prepared from a standardized prescribed mix of 1:2:4, batch by volume was taken
A. Umoh, Akaninyene +3 more
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Synergic effect of metakaolin and groundnut shell ash on the behavior of fly ash-based self-compacting geopolymer concrete [PDF]
The sustainable self-compacting geopolymer concrete (SCGC) production is an eco-efficient concrete with a lower carbon footprint than conventional concrete.
Tafsirojjaman, T. +5 more
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This study explores the physiomechanical and durability properties of C‐25 concrete by partially replacing cement with blends of pumice powder (PP) and bamboo leaf ash (BLA). The combined amount of major oxides SiO2, Al2O3, and Fe2O3 in PP is 84.59%, while in BLA, it is 74.4%, classifying PP and BLA as class N and F pozzolans.
Haris Hassen Adem +2 more
wiley +1 more source
Compressive Strength and Static Modulus of Elasticity of Periwinkle Shell Ash Blended Cement Concrete [PDF]
The study examined the effect of periwinkle shell ash as supplementary cementitious material on the compressive strength and static modulus of elasticity of concrete with a view to comparing it’s established relation with an existing model.
Olusola, Kolapo O. +1 more
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