Thermo physical Properties of a Sun Dried Clay Brick Moulded with Cement and Neem Leaves Ash as Additives


  • Hamza, B UsmanuDanfodiyo University Sokoto –Nigeria
  • Abdulmuminu, I Federal University Gusau, Zamfara –Nigeria



Neem leaves, Cement, Clay, Brick, Thermal property, Physical Property


Neem tree (Azadiractaindica) popularly known as “Dogonyaro” is very common in Nigeria, more especially in the northern part of the country. The problem of the neem leaves waste, make the leaves to be burnt into ashes, however burning the leaves does not solve the waste problem completely. The problem of waste disposal and the cost of cement in the brick molding for building led to this study on the thermophysical properties of clay brick molded with cement and neem leaves ash. The mixture of clay, cement and Neem leaves ash at varying proportion (100% clay, 30% cement, 5%, 10%, 15% and 20% Neem leaves ash) was loaded into a wood mould compartment, manually tamped, leveled, and also shade cured for 5, 13, 19, 26 and 33 days. The results showed that when Neem leaves ash content is 10% (20% cement), the highest average compressive strength of 1.50 Nmm-2 at 33 curing days was obtained, when Neem leaves ash content is also 10% (20% cement) the highest modulus of the rapture of 0.71 Nmm-2 at 12 curing days was obtained when Neem leaves ash content is 20% (10% cement), the highest water absorption of 16.1% at 5 days of curing was obtained when Neem leaves ash content is 5% (25% cement) , the highest initial rate of absorption of 1.43 kg m-2min-1 at 5 curing days was obtained, when 0% Neem leaves ash (30% cement), the highest density of 2.843 kg. mm-3 was obtained, also when Neem leaves content is 10% (20% cement) of 2 cm thickness, the highest thermal conductivity of 164.45 wm-1k-1 at 6 minutes of 26 days was obtained. This shows that Neem leaves ash as partial replacements of cement in clay bricks possess better reliability and workability in both the physical and thermal properties of clay bricks.




Ahmad, A. Z., Johari, I., Said, S., Ramadhansyah, P. J., & Abubakar, B. H. (in press). Chemical and Physical Properties of Fired clay bricks at Different Types of Rice Husk Ash. 2011 International Conference on Environmental Science and Engineering.

Agarwal, A., (1981). Mud The potential of Earth-Based Materials for 3rd World Housing. London: Earhsran Publishers.

Alexandra R.R., and Alan W. R.. (2013). Rocks, Clays, Water and Salts: Highly Durable, Infinitely Rechargeable, Eminently Controllable Thermal Batteries for Buildings, Geosciences, 3, 63-101.

Burrough, S. (2002b). Development projects. In Earthbuilder-an environmentally sustainable building technology publication. Sydney. Australia.

Doat, P., Hays, A., Houben, H., Matuk, S., and Vitous, F. (1991). Building with Earth. New Delhi: The Mid Village society,

Grimm, C. T. (1996). Clay Brick Masonry Weight Variation. Journal of Architectural Engineering, Vol. 2, No. 4, pp. 135-137

Hendry, A.W. (2001). Masonry walls: materials and construction. Construction and building Materials, 15. 323-330. Elsevier.

Hendry, A.W., Sinha, B.P., and Davies S.R. (1981). An introduction to load bearing brickwork design. U.K.: Ellis Horwood Limited.

Hisham, H.A., (2016) “Properties of Fire clay bricks mixed with waste glass” (M.S.c, The Islamic University-Gaza,

Howe, C. (1992). Sustainable earth building for the ecocity. Proceedings of conference on urban ecology. April 1992,Sydney: Australia.

Ifeka, N. U., (2004). Nigeria: Building better lives bricks by brick Ford Foundation International Fellowship Programme Alumni Report. New York: May 28, 2004.

Kenedy, J. f. (2002). An overview of building techniques. Natural building colloquium. Southwest, New Mexico.

Khalaf, F. M. and Devenny, A. S. (2002). “New Tests for Porosity and Water absorption of Fired Clay Bricks.” Journal of Material in Civil Engineering.

Kung, J. H., (1987). Frost-Durability Study on Canadian Clay Bricks. III. Characterization of raw materials and burnt clay bricks. The durability of Building Materials, 5, 125-143.

Lenczner, D., (1972). Elements of Load-bearing Brickwork. Oxford, New York,Toronto, Sydney, Braunschweig.: Pergamon Press,

Maini, S. (2002). Earth architecture for sustainable habitat and compressed stabilized earth block technology. India: AurovilleEarth Institute, Auroville Building Centre.

Mohammed, A.A., and Shakir A.A. (2013). Manufacturing of bricks in the past, in the present and in the future: A state of the Art Review. International Journal of Advances in Applied Science, 2, 145-156.

Moris, J., and Booysen, Q. (2005). Earth construction in Africa Proceedings: Strategies for a Sustainable Built Environment. Pretoria: 23-25August.Organization: Paris, UNESCO.

Nurudeen M.M., Ocholi A., Abubakar I., andEjeh S.P. (2014). Effect of Neem Seed Husk Ash on Concrete Strength Properties. African Journals Online, 33, 2.

Nwachukwu, N. A. (2010). Optimization of rice-husk-ash and straw as stabilizing agents for earth materials (mud) in earth building construction. Unpublished Ph.D. Thesis, Department of Vocational Teacher Education; University of Nigeria, Nsukka.

Sahil S. (1971). Structural Masonry. Michigan: Prentice Hall

Surej, R. K., Fazio, P. and Feldman, D. (1998). Comparative Study of DurabilityIndices for Clay Bricks. Journal of Architectural Engineering. 5, 2 2- 32

Torraca G. (1988). Porous Building Materials. Material Science for Architectural Conservation, 3rd Edition. Rome, Italy.

Zainab. A.A. (2005). Properties of Malaysian Fired Clay Bricks and Their Evaluation with International Masonry Specifications – A Case Study. (, University of Technology, Malaysia, 2005).



How to Cite

Hamza, B, & Abdulmuminu, I. (2021). Thermo physical Properties of a Sun Dried Clay Brick Moulded with Cement and Neem Leaves Ash as Additives. International Journal of Advances in Scientific Research and Engineering (IJASRE), 7(5), 60-69.