Bamboo Leaves Ashes: A Mineral Addition for Building Construction

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Bamboo Leaves Ashes: A Mineral Addition for Building Construction

L. Rodier, E.V. Cociña, H. Savastano Jr.

Abstract. In this study the potential use of bamboo leaves ashes as pozzolanic materials have been investigated. Bamboo leaves were calcined at 600°C for 2 h and then were passed through a sieve opening of 325 mesh. Mineralogical, physical-chemical analysis and electrical conductivity measurements were carried out to evaluate the pozzolanic activity of the resulting bamboo ashes. Thermal analysis and mechanical tests were applied to determine the effect of ashes on the hydration kinetics of ordinary Portland cement. The results showed that bamboo leaves ashes present an amorphous phase and high silica content (70%). Electrical conductivity measurements confirmed the high pozzolanic activity of bamboo leaves ashes. Partial replacement of cement by 20 wt.% of bamboo leaves ashes leads to a decrease of heat of hydration of cement pastes. The compressive strength of mortars containing 20 wt.% of bamboo leaves ashes are similar to their counterparts without mineral additions (Control) at 7 days. At 28 days, the use of bamboo leaves ashes leads to the refinement of the pore structure, hence an increase of the compressive strength of mortars. According to the results, bamboo leaves ashes can be used as pozzolanic materials to increase the mechanical performance and the durability of building materials.

Keywords
Bamboo Leaves, Mineral Addition, Pozzolanic Activity, Cement Hydration, Compressive Strength

Published online , 7 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: L. Rodier, E.V. Cociña, H. Savastano Jr., ‘Bamboo Leaves Ashes: A Mineral Addition for Building Construction’, Materials Research Proceedings, Vol. 7, pp 516-522, 2018

DOI: http://dx.doi.org/10.21741/9781945291838-49

The article was published as article 49 of the book Non-Conventional Materials and Technologies

References
[1] Wong KM, Bamboo-the amazing grass: a guide to the diversity and study of bamboos in South East Asia, International Plant Genetic Ressources Institute/ University of Malaysia, Malaysia, 2004.
[2] International Network for Bamboo and Rattan (INBAR). Priority species of bamboo and rattan. New Delhi, India, 1994, 68.
[3] Villar-Cociña E, Valencia-Morales E, Gonzalez-Rodrıguez R, Hernandez-Ruız J. Kinetics of the pozzolanic reaction between lime and sugar cane straw ash by electrical conductivity measurement: A kinetic–diffusive model. Cem Concrete Res 2003;33:517-524. https://doi.org/10.1016/S0008-8846(02)00998-5
[4] Dhinakaran G, Gangava HC. Compressive Strength and Durability of Bamboo Leaf Ash Concrete. Jordan J Civil Eng 2016;10:279-289. https://doi.org/10.14525/JJCE.10.3.3601
[5] Singh NB, Das SS, Singh NP, Dwivedi VN. Hydration of bamboo leaf ash blended Portland cement. Indian J Eng Mater Sci 2007;14:69-76.
[6] Dwivedi VN, Singh NP, Dasa SS, Singh NB. A new pozzolanic material for cement industry: bamboo leaf ash. Int J Phys Sci 2006;1:106-111.
[7] ASTM C109. Standard test method for compressive strength of hydraulic cement mortars (using 2-in. or [50-mm] cube specimens), 2013.
[8] ASTM C642. Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, 1997.
[9] ASTM C618. Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, 2015.
[10] Morales EV, Villar-Cociña E, Frías M, Santos SF, Savastano H. Effects of calcining conditions on the microstructure of sugar cane waste ashes (SCWA): Influence in the pozzolanic activation. Cem Concr Comp 2009;31:22-28. https://doi.org/10.1016/j.cemconcomp.2008.10.004
[11] Li HL, Yang L, Xie YJ. Effect of Fineness on the Properties of Cement Paste”, Key Eng Mater 2015;629-630:366-370. https://doi.org/10.1016/j.cemconcomp.2008.10.004
[12] Bahurudeen A, Kanraj D, Dev VG, Santhanam M. Performance evaluation of sugarcane bagasse ash blended cement in concrete. Cem Concr Comp 2015;59:77-88. https://doi.org/10.1016/j.cemconcomp.2015.03.004
[13] Taylor HF. Cement chemistry. Thomas Telford, 1997. https://doi.org/10.1680/cc.25929