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In an attempt to curb the menace associated with the collection and disposal of construction wastes, the study investigated the characteristics of broken ceramic tiles concrete graded levels : 0%,5%,10%, 15% and 20% of broken tiles wastes with maximum size of 19mm generated from construction sites used to substitute conventional coarse aggregate in the production of 1:2:4 mix concrete, at constant water-cement ratio of 0.5 cast in sets of sixteen (16) each in 150mm x 150mm x 150mm moulds. The resulting concrete cubes cured for 28 days were tested for absorption, compressive strength and workability in accordance with BSEN 12350-3: 1983 and BS8110: 1997. The result showed that the compressive strength values: 28.25N/mm, 27.44N/mm ,26.88N/mm and 26.33N/mm at 5%, 10%, 15% and 20% respectively although decreases with increase in percentage replacement is comparable with that of a normal concrete up to 20% replacement. Workability and absorption properties of the broken tiles concrete also exhibited the same trend with that of compressive strength. The study concluded that BTC at 28 days possesses strikingly similar characteristics with normal concrete up to 20% replacement.

Structural Performance of Broken Ceramic Tiles As Partial Replacement of Course Aggregates In Concrete