Analysis of Bituminous Concrete Mixes Using H.D.P.E & Crumb Rubber as Admixtures

Abstract

Flexible pavements need more attention  in selection of Resources and preparation of mixes now a  day’s temperature is the main criteria which affect the  mix quality, strength and durability. Rapid changes in  temperature now a day’s big problem to face worst  situations, Durability point is a big factor which affects  the life period of the pavement surface and its  components, Nominal mixes which consists of inert  material doesn’t gives better Durability in severe traffic  and climate conditions Today’s flexible pavements are  Required to perform better as they are facing increased  volume of traffic, increased loads and increased  variations in daily or seasonal temperature over what has  been Challenged in the past. In addition, the performance  of bituminous roads is to be identified that they are poor  in high drainage situations. Present scenario on using  various additives for better drainage is not satisfying the  expected results. However, the additive that is to be used  for modification of mix or binder should satisfy both the strength, durability requirements as well as economical  aspects. Plastics are using extensively in all over world and developing country like India. As these are non biodegradable there is a major problem posed to the  society with regard to the management of these solid  wastes. Even, the reclaimed polyethylene originally made  of HDPE has been observed to modify bitumen. In the  present study, an attempt has been made to use HDPE  and CRUMB RUBBER as admixtures in nominal  bitumen mix to overcome the problem of resistance to  weathering actions and repetitive wheel load