Permeation Resistance of Sawdust Ash Blended Cement Laterized Concrete

Folagbade, Samuel Olufemi; Olawale, Aluko

doi:10.9744/ced.21.2.76-83

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The need to provide adequate housing for Nigeria's teeming urban and suburban areas, as well as many other parts of Africa, has compelled researchers to continue looking for ways to reduce the cost of construction projects by reducing the consumption of raw materials such as cement in the construction industries, while also protecting the environment and enhancing the quality of the cement used to produce concrete (Ettu et al, 2013). Efforts have therefore, intensified at sourcing for suitable and more affordable local materials like industrial by products that could be used as partial replacement for Ordinary Portland Cement (OPC) in civil engineering and building works (Olugbenga, 2007). Some of the affordable local materials now used are industrial or agricultural by-products (wastes) and the mixture of Ordinary Portland Cement with these industrial by products forms what we now call blended cements (Asha et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Flexural Strength Characteristics of Pawpaw Leaf Ash and Bamboo Leaf Ash Blended Cement Concrete

Olaniyi,

Mayowa

2023

ETJ

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This research focuses on flexural strength characteristics of pawpaw leaf ash and bamboo leaf ash blended cement concrete. Several tests were carried out, according to BS and ASTM requirements to determine the physical and mechanical properties of pawpaw leaf ash and bamboo leaf ash blended cement concrete, investigate the effects of curing age on flexural strength characteristics of pawpaw leaf ash and bamboo leaf ash blended cement concrete and examine the effects of percentage replacement of cement with pawpaw leaf ash and bamboo leaf ash blended cement concrete on flexural strength characteristics. A total of 60 cubes were cast, cured in water for 7, 14, 21 and 28days. Test results showed that the flexural strength of the concrete cubes increases with an increase in the curing age and decreases with increasing percentage replacement of cement with pawpaw leaf ash and bamboo leaf ash. The optimum replacement level of pawpaw leaf ash and bamboo leaf ash was obtained to be 5%. The study concluded that concrete containing the cement blends of cement and Pawpaw leaf ash and bamboo leaf ash at a replacement level of 5% is only recommendable for use in light concrete works construction.

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Section: Introductionmentioning

confidence: 99%

Flexural Strength Characteristics of Pawpaw Leaf Ash and Bamboo Leaf Ash Blended Cement Concrete

Olaniyi,

Mayowa

2023

ETJ

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Performance of concrete containing Nigerian electric arc furnace steel slag aggregate towards sustainable production

Kolawole

Babafemi

Paul

et al. 2020

Sustainable Materials and Technologies

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Effects of Blended Portland-Fly Ash Cement on Compressive Strength of Seawater Mixed and Cured Lateritic Concrete

Alabi,

Arum,

Akande

et al. 2024

JCEU

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The use of cement in the construction industry is accompanied by the release of greenhouse gases (GHGs) into the ecosystem, and freshwater usage is on the rise globally, putting the world in a potential freshwater scarcity. This study investigated the effects of blended Portland-fly ash cement on the compressive strength of seawater-mixed and cured lateritic concrete by partially replacing the concrete materials: cement with fly ash at 0%, 5%, 10%, 15%, and 25%; fine aggregate, with laterite at 0%, 10%, 20%, and 30%. A concrete mix ratio of 1:1.5:3 was used in the production of concrete cubes with an expected target compressive strength of 20 N/mm2. The compressive strength of the cubes was measured at 7, 28, and 56 days using standard testing procedures. Cubes cast with and cured in seawater (SW-SW) had strength values relatively higher than those cast with and cured in freshwater (FW-FW) at 28 days of curing. At 28 days, SW-SW cubes gave 22.44 N/mm2 while FW-FW cubes gave 21.80 N/mm2 as the highest strength values at 10% Lat and 10% FA. However, the FW-FW cubes had strength values higher than those of seawater mixed and cured concrete (SW-SW) at 56 days. FW-FW cubes gave 26.82 N/mm2 while SW-SW cubes gave 26.34 N/mm2 as their highest strength values at 10% Lat and 10% FA. Generally, an increase in fly ash and laterite content significantly reduces the compressive strength of concrete. Overall, seawater is recommended for curing and mixing, especially in non-reinforcing concrete. 10% fly ash and 10% laterite are also recommended for use in blended Portland cement-fly ash concrete as they give the highest strength values. Keywords: Concrete, Fly Ash, Laterite, Seawater, Compressive strength

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Permeation Resistance of Sawdust Ash Blended Cement Laterized Concrete

Cited by 3 publications

References 21 publications

Flexural Strength Characteristics of Pawpaw Leaf Ash and Bamboo Leaf Ash Blended Cement Concrete

Flexural Strength Characteristics of Pawpaw Leaf Ash and Bamboo Leaf Ash Blended Cement Concrete

Performance of concrete containing Nigerian electric arc furnace steel slag aggregate towards sustainable production

Effects of Blended Portland-Fly Ash Cement on Compressive Strength of Seawater Mixed and Cured Lateritic Concrete

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