Investigate the Causes of Pavement Distresses and Its Remedies from Dessie to Hayk Road Segment
| dc.contributor.advisor | Alemayehu, Ambo (PhD) | |
| dc.contributor.author | Frezer, Eniyew | |
| dc.date.accessioned | 2019-05-19T09:48:26Z | |
| dc.date.accessioned | 2023-11-11T12:53:32Z | |
| dc.date.available | 2019-05-19T09:48:26Z | |
| dc.date.available | 2023-11-11T12:53:32Z | |
| dc.date.issued | 2019-03-21 | |
| dc.description.abstract | Paved roads in tropical and sub tropical climates often detoriorate in different ways than those in temperate regions because of: harsh climatic condions, lack of proper design and quality control, high load, and inadequate assessment in identifying the causes of distresses before carring out maintenance and rehabilitation. A pavement distress that occures at the surface can have a number of different causes which must be properly identified before corrective action is taken. The visibe manifestation of the problem at the surface may be the same; however, the solution for each cause may be different. Therefore, if the remedial action is to be effective, the cause of the problem must be identified and corrected. The present road condition from Dessie to Hayke shows rapid deterioration. This is due to traffic volume of: busses, heavy trucks, passenger vehicles and minibuses. These consequently may cause further deterioration of roads due to traffic load. This research mainly focuses on making assessment of asphalt pavement condition, identifying the causes of pavement distresses and proposing remedial measures for the trunk road from Dessie to Hayke in Amhara Region, Ethiopia. This road segment is most widely utilized, and therefore prone to severe distresses and consequently resulting in repeated maintenance and repair. Visual distress assessment, extracting pavement and checking moisture content, grain size distribution, compaction, CBR test, standared sieve analysis, Atterberg limits, Los Angelus Abrasion test, shape test and other necessary laboratory investigations were carried out on the road segment in order to have better undestanding and to come up with identification of probable causes. Major causes of pavement distress associated with traffic load, climatic condtion, matarias were identified. The results of the research showed that Subgrade and Base materials materials have low Plasticity Index and low CBR value compared with the specifications. The design traffic load is higher than the actual traffic for this traffic load section. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/18264 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Words | en_US |
| dc.subject | Pavement Distress | en_US |
| dc.subject | Laboratory Test | en_US |
| dc.subject | Pavement Maintenance | en_US |
| dc.title | Investigate the Causes of Pavement Distresses and Its Remedies from Dessie to Hayk Road Segment | en_US |
| dc.type | Thesis | en_US |