Tuleun ; ; ;, L.Z.Jimoh, A.A.Ozigi, P.B.Rahmon, R.O.2019-05-032019-05-0320172384-6844http://hdl.handle.net/123456789/1816The production of cement, one of the major binders in the construction industry has adverse effect on the environment, contributes to global warming, and leads to depletion of limestone. On the other hand, burning of Brewer dry grain (BDG) in the open pollutes the atmosphere with attendant health consequences. To overcome the adverse effect associated with cement production and the burning of waste material, the use Brewer dry grain ash (BDGA) as partial replacement of cement in concrete production was investigated. Cement was partially replaced with BDGA at 5 %, 10 %, 15 % and 20 % in concrete. A water-cement ratio and mix ratio of 0.61 and 1:1.5:3.2 was adopted. Chemical analysis test on the ash sample was carried out in accordance with ASTM C618 (1999). The consistency, initial and final setting time test was carried out in accordance with BS EN 196-3 (1994). Eighty-five cubes of the size of 150 ×150×150 mm were cast and tested for compressive strength at 7, 14, 28 and 56 days curing. The test was carried out in accordance with BS EN 12390-1(2000). For tensile strength test, twenty-five specimens of size 100 × 100 × 200 mm were cast and tested after 28 days curing. This test was carried out in accordance with ASTM C 496-11. BDGA had a silica content of 74%, which was above the minimum of 50 % specified in ASTM C618 (1999) for any material to be classified as a pozzolan. An increase in setting time was observed with BDGA addition. A maximum compressive strength of 36.4 MPa was attained at 10 % cement replacement with BDGA ash, and the result obtained was higher than the strength of plain concrete by 25.6 %. For tensile strength, a maximum compressive strength of 3.03 was obtained at 10% replacement. This was higher than the strength of plain concrete by 13.5 %.enBrewers dry grainPozzolansCompressive strengthTensile strengthSorghumArticle