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Research Article

Optimal water-cement ratio and volume of superplasticizers for blended cement-bamboo leaf ash high-performance concrete

Samson Olalekan Odeyemi1,  Michael Oluwasegun Adisa1, Olumoyewa Dotun Atoyebi2, Uwemedimo Nyong Wilson3, Omolola Titilayo Odeyemi4

1Department of Civil & Environmental Engineering, Kwara State University Malete, Nigeria       2Department of Civil Engineering, Landmark University, Omu-Aran, Kwara State. Nigeria

3Department of Civil Engineering, Nigerian Defence Academy, Kaduna, Nigeria

4Department of Science Laboratory Technology, Kwara State Polytechnic, Ilorin, Nigeria

Keywords

Abstract



Compressive strength; 

Water absorption; 

Bamboo leaf ash;        

High-Performance Concrete; 

Superplasticizer

Attention on the use of High-Performance Concrete (HPC) for construction works has soared considerably due to the need for large volume of concrete with high level of strength for such works. The mechanical properties of HPC with Bamboo Leaf Ash (BLA) as partial replacement of cement with varying proportions of superplasticizer and water-cement ratio was investigated in this paper. The percentage of BLA was fixed at 5%, while the proportion of superplasticizer ranged from 0 to 1.5% by weight of cement. The concrete mix was designed to attain a characteristic strength of 41 N/mm² after 28 days of curing. X-ray Fluorescence (XRF) and X-ray Diffraction (XRD) were employed in determining the chemical constituents and crystallinity of the BLA respectively. The slump of the fresh HPC was also established. Concrete cubes (for water absorption and compressive strength) were cast and immersed fully in water for 56 days. Water absorption and compressive strength were established on the fully cured HPC. The optimal combination of materials at the end of the curing period is 0.360 water-cement ratio at 0.128 % superplasticizer. This resulted in a slump height of 49 mm, compressive strength of 53.61 N/mm2 and 4.77% water absorption capacity.

© 2022 MIM Research Group. All rights reserved.

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8/12/2023 Special Issue: Embark on a journey of innovation with the journal of Research on Engineering Structures and Materials as we unveil a compelling opportunity for contributors in our upcoming special issue, "Design, Analysis, and Manufacturing of Composite Vehicle Structures." Led by distinguished Guest Editors Liubov Gavva and Oleg Mitrofanov from Moscow Aviation Institute. For more info see the link.


21/10/2023 Journal Submission System Upgrade Completed: We're delighted to announce that our Journal Submission and Tracking System has undergone a significant upgrade, aimed at enhancing your experience. We apologize for the delay, and any inconvenience it may have caused. Here are the key enhancements from a user perspective:

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27/12/2022 Reviewer AwardsThe winners of 2022 reviewer awards of Research on Engineering Structures and Materials (RESM) are announced. More information can be found at Reviewer Awards section. 


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LATEST AWARDS


2022 Reviewer Awards:

Please, visit Reviewer Awards section for the winners of the 2022 RESM reviewer awards.


2022 Best Paper Award:

The paper authored by Nitin Kumar, Michele Barbato, Erika L. Rengifo-López and Fabio Matta entitled as “Capabilities and limitations of existing finite element simplified micro-modeling techniques for unreinforced masonry” is awarded the 


2022 Most Cited Paper Award:

The paper authored by Aykut Elmas, Güliz Akyüz, Ayhan Bergal, Müberra Andaç and Ömer Andaç entitled as “Mathematical modelling of drug release" is awarded the


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