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ABSTRACT Effects of Human Hair Additives in Compressive Strength of Asphalt Cement Mixture

During the last seventy years in Manila, there was an unprecedented development in infrastructure, particularly on roads. Many thousands of kilometers of new roads were constructed worldwide to meet the demands of increasing traffic volumes. Many of these roads have been used for more than twenty years and have reached the end of their design lives, requiring increasing maintenance efforts to retain acceptable levels of service. In addition, the average vehicle mass has steadily increased over the years as more goods divert from rail and sail to the more flexible and faster road transport. Increased traffic pressures, higher axle loading and old age contribute to road deterioration.

As the turn of millennium approaches most countries are facing similar problems with their road networks. An increasing proportion of road budgets are required just to maintain existing roads and there is consequently less money available for rehabilitation measures or new construction. In many countries like Philippines there is simply not enough money to keep pace with maintenance needs, resulting in rapid decline and more expensive rehabilitation measures that will eventually be required to restore service levels. New roads, or upgrading projects, can often only be considered if toll revenues justify the capital outlay. It is a downward spiral.

This break scenario presents a challenged to roads engineers. The World Bank and other institution have shown that any nation needs a sound infrastructure for economic health and good roads are vital part of that infrastructure. If the funds available are insufficient to rescue the current crisis then a more cost-effective method of road rehabilitation must be found. Innovation is required to find alternative construction methods that will increase the effectiveness of existing budget, thereby achieving more square meters of roads. Asphalt-cement with hair road pavement is one such alternative. The major emphasis of this study is to describe the change in the properties of asphalt when it mixed with cement and hair. Hair was used as polymer. Hair contains a high amount of sulfur because the amino acid cysteine is a key component of the keratin proteins in hair fiber [1, 2]. The primary component of hair fiber is keratin. Keratins are proteins, long chains (polymers) of amino acids. In terms of raw elements, on average, hair is composed of 50.65% carbon, 20.85% oxygen, 17.14% nitrogen, 6.36% hydrogen, and 5.0% sulfur [2].

The researcher focus on this study in ordered to lessen the waste and to get an additional strength from those human hairs. With this, the researcher could help manage the solid waste, like human hair, orderly. Because if the human hair will be separated from the waste of the environment it will be in order, if this will be done, sickness could also be lessen and the rehabilitation of pavement becomes cost-effective.