The rapidly increasing in population has led to the higher of construction, repairing and renovation activity that lead to produce large amount of construction material waste. The disposal of broken ceramic tiles during construction is one of the factors which contribute to this matter and can lead to land pollution. On the other hand, the natural resource in construction such as fine aggregate also facing depletion in order to cater the current and future demand. Therefore, this paper explores the properties of concrete with ceramic tile waste used as a partial replacement for fine aggregate. About 45 cube samples, 30 prism samples and 15 control samples were casted. Various percentage of ceramic tile waste has been introduced as partial replacement for fine aggregate with proportion of 10%, 15%, 20% and 30%. Tests for mechanical and rheological properties which have been done to identify the concrete performance are compressive strength, flexural, water absorption and slump test. From the results obtained, the sample of concrete contain of 15% ceramic tile waste as fine aggregate replacement has reached the optimum strength in both compressive strength and flexural strength. However, by using 20% of ceramic tile waste as fine aggregate replacement does show higher workability and water absorption.
In the aerospace field, titanium alloys are extensively used for the airframe and engine parts to improve aircraft fuel consumption. Drilling through these parts in a single-shot process to produce high quality holes is challenging. During drilling, high temperatures are generated owing to the friction between the cutting tool and workpiece, causing the process becomes inefficient in terms of tool life and surface quality. To reduce the temperature produced in the cutting zone, different types of cooling techniques during drilling have been used by researchers. In this study, the feasibility of quarry dust suspension as coolant in drilling of titanium alloy was performed. The effects of different concentrations of quarry dust on surface roughness, thrust force, and burr formation were evaluated, and their machining performances were compared with those obtained using aluminium oxide suspension. Before the experiments, both suspensions were prepared by dispersing quarry dust and aluminium oxide particles into deionised water at various concentrations ranging from 0 wt% to 0.10 wt%. Results indicated that by using 0.06 wt% of quarry dust suspension, thrust force and surface roughness showed an improvement by 8.31% and 18.29%, respectively, compared with those of aluminium oxide suspension at the same concentration. The burr height formed at the drilled holes using 0.06 wt% of quarry dust was also lower than that formed with aluminium oxide suspension at the same concentration.
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