Inclined Coarse Aggregates Washer

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George P. Compasivo

Abstract

The study focused on the development of an inclined coarse aggregates washer, a machine intended to be used for washing coarse aggregates sample during sieve size analysis in testing laboratory shop for construction materials. The present invention relates to washing machine and more particular to a machine used for washing coarse aggregates using an outer cylinder container and a perforated inner cylinder container with plastic bar mixer driven by a motor in an angular position aided with continuous flow of water to wash coarse aggregates without damaging and help the laboratory technicians to make aggregates washing easier, faster, and more convenient with more quantity and quality output. Specifically, this study aimed to design an inclined coarse aggregates washer, estimate the cost of supplies and materials, construct and test/evaluate the functionality of the project. The machine is a substitute for a tedious process of washing and drying method of aggregates using bare hands. It is intended to avoid and eliminate the risk of hand injury due to manual practice.  The laboratory technicians can use their bare hands and in so doing it would expose their hands to water and heat during washing and oven drying process that may result to injury and palsy hands. The major parts of this machine are the stainless container assembly, the motor, and pulley and belt assembly. The machine is limited to wash the ordinary or crushed gravel with maximum size of G1 and with a maximum capacity of five kilos of gravel. Based on the analysis conducted, the project was designed and developed according to the purpose as it is a good substitute for manual process of washing coarse aggregates; functions very efficiently. It is therefore recommended that this newly developed machine be used in the construction material testing laboratories and to be used as an additional equipment for instructional purposes in the civil technology shop.

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