رئوس مطالب
- چکیده
- کلیدواژه ها
- مقدمه
- بررسی ادبیات موجود
- اضافه نمودن موی انسان
- بیندر آسفالت
- سیمان
- شیشه به عنوان یک ماده افزودنی برای آسفالت
- استفاده از پلاستیک در Plasphalt یا به عنوان یک افزودنی برای بتن آسفالیت
- روش
- روش آزمایشگاهی
- تعیین مقدار مایع مطلوب و روش آزمایش
- تعیین مقاومت کششی غیرمستقیم (ITS)
- نتایج و بحث
- نتیجه گیری ها
Abstract
This experimental study presents the effects of human hair additives in compressive strength of asphalt cement mixture as potential binder in road pavement. Human hair is strong in tension and can be used as a fibre reinforcement material. Hair Fibre (HF) is an alternate non-degradable matter is available in abundance and at a very cheap cost. It also creates environmental problem for its decompositions. This elastic property of the HF reinforced in asphalt pavement may produce better stand on traffic loading by the same fundamental mechanism of transferring the high intensity forces imparted at the surface by the wheel loads to lower levels that the subgrade can accommodate without deforming.
The experiments made were asphalt mixture with human hair as the experimental group and standard asphalt mixture being the control groups. Human hair added to standard asphalt mixture with three different proportions varying from 3% to 12% by mass of with respect to bitumen.
This study proves that adding cement and human hair to asphalt mixture greatly increase the strength of the mixture thus making it a good material for the construction of road pavement. Adding of both cement and human hair to asphalt mixture improves the load bearing capacity of the mixture.
Conclusions
It is also concluded that the varying condition on road pavements greatly affects the strength of asphalt mixture. Another thing is that the addition of hair to the asphalt cement mixture greatly improves its capability to bear more loads applied to it. Additional hair must range from 2% to 6% by mass of bitumen or else the mixture would have lesser bond and becomes unstable. Moreover, the properties of asphalt pavement with hair is suitable to road pavement, the hair becomes the additional binder, which exhibits superior resistance to both deformation and fatigue. The asphalt should be mixed and slightly cooled to avoid the awful odor of burnt hair. To meet the desired mixture, reduce the size of the hair waste into smaller one. It is also recommended to increase the percentage of asphalt content. The source of aggregates must be in good quality. It is recommended to use a good type of asphalt in terms of its size and shape. The required temperature must be strictly observed. Moreover, it should be tried not only to horizontal construction but also in vertical construction. Finally, the researcher recommend that further studies be made about this subject to better improve on the product