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FABRICATION OF TWIN CELL 15x15x15cm METAL CONCRETE CUBE MOULDS by B.S STANDARD USING 4MM THICK METALLIC SHEET MATERIAL
Abdul’aziz Suleiman & Abdullahi Abubakar

ABSTRACT
This research work entails the production of dual/twin cell concrete cube molds by fabrication according to the British Standards with a 4mm thick metallic sheet material (Non-absorbent) that is capable of receiving, withstanding and withholding both concrete and accessible water coming along with it without leakage or warping. The opposite faces/walls of the mold are smooth, rigid and 150cm apart, thus forming a 150x150x150cm cuboidal cell with the base of each wall dipped into a slot of equal thickness with the thickness of the plate (4mm). At the base of the mold is a vertical anchor with a threaded tip attached to the base by welding to hold the longer walls together firmly through the U-protrusion to the shorter walls. The two opposite longer walls were formed by joining two 4mm thick metal plates together to form 8mm thickness walls by making a rectangular cut on one plate and then welded together from that place the cut. Thus, each opposite angle formed between shorter cell separators and the 8mm thick longer walls are edifices of a perfect 90-degree angle, making the two cells conform by all standards. On completion, the double-cell apparatus was fed with concrete, and each cell was tamped as per 25 strokes of the tamping rod. Then, it vibrated for two minutes to test the integrity and possible leakages between joints. It was found to be of proven integrity, without leakages, easy to couple and de-molded. It was therefore recommended that practical under-field or laboratory conditions be used to determine the compressive strength of concrete cube tests; this will provide an idea of all the characteristics of concrete. Keywords: Fabrication; Twin Cell; Metal; Concrete; Cube Moulds


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