Abstract
The toupie is a ready concrete delivery truck (BPE). Accidentally or negligently, if the concrete is not delivered on time, he makes and hardens. It enters the range of waste. In this study, fresh concrete is crushed and reused as a substitute for natural aggregates. A 2-variable experience plan (% sand and% gravel) was used to reduce the number of measurements. The replacement proportions used are 0%, 50% and 100%. Several mechanical and physical properties were measured including compressive strength, tensile strength and absorption. These results show a good correlation between the percentage of replacement and the properties of this concrete. Replacing 50% of natural aggregates (sand and gravel) with recycled aggregates results in a reduction of about 24% in the compressive strength of the concrete under test.
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