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Article | Civil and Sustainable Urban Engineering | Volume 3 - Issue 1 - 2023 | 81-94 | https://doi.org/10.53623/csue.v3i1.242
© 2023 by the author(s), and is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License Creative Commons Attribution 4.0 International (CC BY 4.0) License

Development of Cement Stabilised Compressed Blocks Using Coal Bottom Ash: Influence of the Grain Size on Mechanical and Physical Properties of Blocks

Author(s): Jacques Remy Minane 1 , 2 , , Abdou Lawane 2 , Jeremie Madjadoumbaye 1 , Raffaele Vinai 3 , Brice Zagré 2
Author(s) information:
1 Department of Civil Engineering, National Advanced School of Engineering of Yaounde (Polytechnic), University of Yaounde I, P.O. Box 8390 Yaounde, Cameroon
2 International Institute of Water and Environment Engineering (2iE), Eco-Materials and Sustainable Habitat Laboratory (LEMHaD), Rue de la Science, 01 BP 194 Ouagadougou 01, Burkina Faso
3 Department of Engineering, University of Exeter, Harrison Building, North Park Road, Exeter EX4 4QF, United Kingdom

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Civil and Sustainable Urban Engineering

Volume 3 - Issue 1 - 2023

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This study investigated the physical and mechanical properties of cement-stabilized compressed blocks manufactured with coal bottom ash sourced from a power plant in Niger. Three different grain sizes were used for the production of compressed blocks with a hand-operated press. Thermal, hydric, mechanical, and fire resistance properties were assessed on the samples. It was found that the use of finer bottom ash resulted in lighter blocks with a density of about 1.02 mg/m3 and thermal conductivity in the range of 0.27 – 0.41 W/m·K. The size of the bottom ash used for the production of blocks did not significantly affect the value of mechanical strength. The exposure of blocks to temperatures of 200°C and 400°C did not reduce the strength of the samples. Neat bottom ash blocks can offer better thermal properties than typical building materials and provide acceptable mechanical strength.

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SUBMITTED: 07 April 2023
ACCEPTED: 19 May 2023
PUBLISHED: 23 May 2023
SUBMITTED to ACCEPTED: 43 days
DOI: https://doi.org/10.53623/csue.v3i1.242

Cite this article
Minane, J. R., Lawane, A. ., Madjadoumbaye, J. ., Vinai, R. ., & Zagré, B. . (2023). Development of Cement Stabilised Compressed Blocks Using Coal Bottom Ash: Influence of the Grain Size on Mechanical and Physical Properties of Blocks . Civil and Sustainable Urban Engineering, 3(1), 81–94. https://doi.org/10.53623/csue.v3i1.242
Keywords
Coal bottom ash compressed block waste recycling low carbon building materials.
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