EFFECT OF MOISTURE CONTENT ON DEFORMATION CHARACTERISTICS OF UNBOUND BASE COURSES | ||||
| ERJ. Engineering Research Journal | ||||
| Article 9, Volume 27, Issue 1, January 2004, Page 73-82 PDF (2.7 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2004.82613 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| S .A.El-Hamrawy; K. E. El-Hoseiny; A. Abou-Elmaaty | ||||
| Faculty of Engineering, Minoufiya University, Shebin El-Kom, Egypt | ||||
| Abstract | ||||
| he design of flexible pavements involves a study of the behavior of soils and paving materials under traffic and environmental conditions. The pavement may be exposed to different moisture contents. This variation in moisture content influences the flexible pavement performance causing plastic deformation or rutting. The results of an experimental program utilizing a test-model for determination of the plastic and elastic deformation along the model centerline are presented for pavement unbound granular base materials. A limestone base course, which usually used in north Egypt was manually compacted and tested by plate loading test at four moisture contents. The four selected moisture contents are (optimum moisture content (OMC, OMC -2%, OMC+1.5% and OMC+3%). Moreover, the finite element program, FENLAP was selected to predict the base course deformation at different moisture contents. It was found that the effect of moisture content was very significant on the modulus of elasticity and the deformation that accumulated in granular base materials. The highest modulus of elasticity and the lowest deformation were occurred at OMC. | ||||
| Keywords | ||||
| Deformation; Moisture content; Granular base materials; Plate loading test | ||||
|
Statistics Article View: 89 PDF Download: 162 |
||||
