PHYSICAL AND MECHANICAL PROPERTIES OF CEMENT MORTAR USING LIME AND BAMBOO-ASH AS PARTIAL REPLACEMENTS
DOI:
https://doi.org/10.11113/mjce.v30.16028Keywords:
Bamboo ash, lime, density, compressive strength, water absorptionAbstract
The effect of varying different proportion of bamboo ash and lime as partial replacement for cement in mortar were studied. Bamboo stalks were collected and burned into bamboo ash in furnace. The results of the physical and mechanical properties of the cement and aggregate used were within the requirements stipulated by relevant standards. The mix proportion 1:6 was used out of which 2%, 4% of bamboo ash and 2%, 4% of lime were used to partially replace cement in the mortar. The compressive strength of most of the mortar cubes increases with curing days and their values lie within the required strength of 2.5 N/mm2 – 6.5 N/mm2 as stipulated by relevant codes. The water absorption rate was observed to increase with increase in bamboo ash and lime content, while the density decreases as the percentage of bamboo ash and lime in the mortar increases by mass. The study therefore can be concluded that in the presence of significant proportion (i.e. 4% or more) of bamboo ash the strength of mortar increased hence making it adequate for the production of masonry mortar and reduces building failure.References
Abdullahi, A., Abubakar, A. and Afolayan, A. (2013). Partial Replacement of Sand with Sawdust in Concrete Production. Proceedings of 3rd Biennial Engineering Conference, School of Engineering and Engineering Technology, Federal University Technology Minna, Niger State, Nigeria, 333-338.
ASTM C136 (2005) “Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates†ASTM International, West Conshohocken, Pennsylvania.
BS 1881-131(1998) Testing concrete. Methods for testing cement in a reference concrete: British Standards Institution, London, UK.
BS 812-2 (1975) Testing aggregates. Methods for determination of physical properties: British Standards Institution, London, UK.
BS EN 1052-1:1999 Code of practice for use of masonry. Structural use of unreinforced masonry: British Standards Institution, London, UK.
BS EN 1097-5:2008 Tests for mechanical and physical properties of aggregates. Determination of the water content by drying in a ventilated oven: British Standards Institution, London, UK.
BS EN 12390-3 (2009) Testing hardened concrete. Compressive strength of test specimens: British Standards Institution, London, UK.
Dhinakaran, G. and Gangava, H. C. (2016) Compressive Strength and Durability of Bamboo Leaf Ash Concrete, Jordan Journal of Civil Engineering, 10(3): 279-289
Practical Action Technical Brief (2009). Schumacher Centre for Technology and Development, Rugby UK.
Ravikumar, C. M. Sreenivasa, M. B. Abdul Raheem, K. Prashanth1, M. H. and Vijay S. R. (2013) Experimental Studies on Strength and Durability of Mortars Containing Pozzolonic Materials. International Journal of Advanced Structures and Geotechnical Engineering 2 (2): 45-49
Singh, N.B., Das, S.S., Singh, N.P., and Dwivedi, V.N. (2007). “Hydration of bamboo leaf ash blended Portland cementâ€. Indian Journal of Engineering and Materials Sciences, 14 (1): 69-76.
