Using of Aluminum Powder Coating Waste As a Construction Material

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Date
2016
Authors
Dyala Sharaf
Farah Johar
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Abstract
  The project is using the Aluminum Powder Coating Waste as a Construction Material. This material is of a polymer nature having a fine and light weight structure. The powder is produced in large quantities by the National Aluminum and Profile Company "NAPCO", this powder costs worth of 450,000-500,000 NIS to get rid of it to the landfills. So the main objective of this project is to utilize the waste material resulted during the paint operation of the aluminum profiles in construction, such as in producing concrete and concrete products. The intention of this project to study the effect of adding amounts of this material as a replacement of fine aggregates in the concrete and concrete products industry. It is also intended to verify the effect of adding this material to soft and plastic clayey soil and how it will affect the main physical properties, mainly the plasticity characteristics (Atterberg limits). After doing concrete mixes of adding specific percentages of powder as a partial replacement of sand and testing its compressive strength, and doing Atterberg limits tests such as Liquid Limit and Plastic Limit on clayey soil by adding percentages of powder, Results were : 1.     Aluminum Powder coating has a little effect on concrete mixes used in slabs and foundations, so adding a percent of not more than 5% of powder as a replacement of fine aggregate will be optimum; since it increases workability of concrete and makes a little increase in compressive strength. 2.    Powder has a strong influence on clayey soils; since it decreases plasticity index of the soil -the values of liquid limit and plastic limit are close to each other- and therefore increases the strength of soil, which indicates that the compressibility and durability of the soil will increase.   3.    Powder has a perfect effect on the strength of concrete pipes since its addition increases the compressive strength of the pipes.          Based on the obtained results it is recommended to carry out additional set of tests to study the effect of using the aluminum powder coating on the physical and mechanical properties of more kinds of construction materials manufactured in the local market, such as cement tile, concrete block, curbstone, block for paving, etc.           
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