Articles


UTILIZING WASTE PLASTIC BOTTLES IN BITUMINOUS ASPHALT MIX


Author/s: ABEL GEBRETSDIK, ABRAHAM SEBSIBE, MILLION BAYOU, RUTH TADESSE, SOSINA SEYOUM & DR. TENSAY GEBREMEDHIN
Abstract
This research use Polyethylene Terephthalate as hot mix asphalt modifier. Polyethylene Terephthalate is one component of plastic material, and the research is concerned with the possibility of utilizing waste plastic bottle as an ingredient in asphalt concrete to increase the mixture engineering pro...

HYDRAULIC PERFORMANCE MODELING AND IMPROVEMENTS OF WATER SUPPLY DISTRIBUTION SYSTEMS


Author/s: ZERIHUN ABIYU AND DR.ING. GEREMEW SAHILU
Abstract
Water Supply Distribution Systems Utilities are designed to continuously supply safe, reliable and affordable, portable water to end users. As time elapses, meeting these commitments embraces multiple challenges in urban areas. The objectives of this work are to evaluate the hydraulic performance of...

Analysis and Parametric study of piled Raft foundation using finite element based software plaxis 3D


Author/s: SIMENEH ABATE, ALEMAYEHU TEFERRA AND AMEYU TEMESGEN
Abstract
The design of group piles depends on either the group or single pile capacity. In conventional desig method such foundations element which makes the approach conservative as the contribution of the raft is not accounted for. Taking into account of the interactions between different elements of piled...

INVESTIGATION OF THE POTENTIAL IMPROVEMENT OF COMPRESSIVE STRENGTH OF PORTLAND CEMENT MIXTURES BY APPLICATION OF BACTERIA – ‘SPOROSARCINA PASTEURII’


Author/s: SAMSON WALELIGN AREGAWI, ABIY SHIMELES GOSHU, BISRAT ESHETU ALEMU, DAGMAY GEBEYEHU WOLDAREGAY, NATNAEL DERES ABDULKADIR, YONATAN BIRHANE MESFIN
Abstract
The concept of microbial concrete is one of the recent advances in concrete technology, in the past two decades, concrete technologies are working towards developing high performance concrete. Researches over the globe are being carried out in the wake of promising results found on the improvement o...

Rehological Evaluation of Rubberized Bitumen for Sustainable Pavement


Author/s: ATNAFU A. MENGISTU, DR ALEMGENA A. ARAYA, DR. HABTAMU M.ZELELEW
Abstract
The use of modifiers to enhance the rheological properties of asphalt binders and to improve the performance of flexible pavements has been long in practice, especcially in the developed countries. The use of performance-based binder tests and specification systems in flexible pavement desgins, such...

Building Construction and its carbon footprint


Author/s: ADDIS YIBELTAL M.SC., KASSAHUN ADMASSU (PH.D)
Abstract
The paper attempts to have a critical insight in to the construction activity regarding construction material, the generated waste, their embodied energy and CO2 emission as an ongoing and future concern of the human habitat. Infrastructure development and handling processes including: design, const...