• Faiz Habib Anwar
• S.I. Malami
• Z.B. Baba
• M. M. Farouq,A.B. Umar
• M.S. Labbo,D.S. Aliyu

This experimental investigation has been performed in order to evaluate the strength of lightweight concrete, in which cement was replaced from 0% to 20% with animal bone ash. The test has been conducted on hardened concrete for M20 concrete using IS method. The lightweight concrete is obtained by replacing coarse aggregate with pumice (i.e. solidified magma). Lightweight concrete has many advantages compared to the conventional concrete especially in the multistoried building due to its low density of about 300 to 1850 Kg/m3 compared to conventional concrete weight with a density of about 2200 to 2600 Kg/m3. In this research, coarse aggregate has been replaced 100% with the pumice to manufacture the lightweight concrete. On the other hand, cement has been replaced with animal bone ash, a cleaned and dried animal bone has been burned in the clinker to obtain its powder, then the powder has been used partially as a cement replacement in series of 0%, 5%, 10%, 15%, to 20% at different cubes and the cubes were cured for 28 day. Compressive strengths were determined at 7, 14 and 28 day of curing and at the end it has been found that, the compressive strength reduces from 0% to 10% and there was a slight increase from 10% to 15% followed by a rapid decrease in strength from 15% to 20%, and the concrete mix containing not more than 5% of animal bone ash showed a little reduction in the final strength (less than 10%), they can still be used for major construction work. The 10% and 15% replacement can be used for lightweight concrete for blinding and German floor

Animal Bone Ash, Compressive strength, Lightweight concrete, Pumice.

"COMPRESSIVE STRENGTH OF LIGHTWEIGHT CONCRETE AND BENEFIT OF PARTIALLY REPLACING CEMENT BY ANIMAL BONE ASH (ABA)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.554-560, June 2019, Available :http://www.jetir.org/papers/JETIR1907966.pdf

"COMPRESSIVE STRENGTH OF LIGHTWEIGHT CONCRETE AND BENEFIT OF PARTIALLY REPLACING CEMENT BY ANIMAL BONE ASH (ABA)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp554-560, June 2019, Available at : http://www.jetir.org/papers/JETIR1907966.pdf