Relationship between Compaction Ratio (RC) and Compacted Layer Thickness
Journal Title: Saudi Journal of Engineering and Technology - Year 2016, Vol 1, Issue 4
Abstract
Abstract: The soil utilized as underneath the layer of sub-base in many civil engineering applications such as; roads, foundations of buildings, walkways, airfield, etc. The thickness of sub-base layer depends on the design load, project type and the soil type. Which will effect on the field density. This study was applied on a sub-base soil grade B as classified according to AASHTO which a wide spread in Iraq. Different tests were conducted on this soil to evaluate its properties such as sieve analysis, Atterberg's limits, compaction and chemicals. Three energies of compactive efforts were used in the laboratory work (EN1= 585.17 kJ/m3, EN2 =5898.5 kJ/m3, and EN3=1799 kJ/m3, ) to study the effect of different compactive efforts on the maximum dry density. Furthermore, built field model with the compactive effort of 1711.3kJ/m3 was used to determine the compaction ratio (RC). This model was 3m*1m * 0.80m which was from the confining base and sides by plain concrete to prevent the energy from transmitting to the soil behind and below the model. Four layer thicknesses (0.1m, 0.15m, 0.2m, and 0.3m) were used to study the effect of compactive effort on the layer thickness and then to evaluate the RC. The results obtained from this study showed that RC was Inversely proportional to the thickness of layer when it was equal or less than 0.2m. RC was (97%, 94.2% and 88.5%) at 0.1m, 0.15m, and 0.2m respectively. However, this was not the case when the layer thickness exceeded 0.2m. The results also showed that the adequate thickness was less than 0.2m. Keywords: compaction, sub-base, compaction ratio, compaction effort.
Authors and Affiliations
Yahya K. Atemimi
Keywords
Related Articles
- EP ID EP401569
- DOI -
- Views 203
- Downloads 0
Energy Shortages and Impact on Overall Equipment Effectiveness in Manufacturing Firms in Nigeria
Abstract:Energy availability is a vital factor for the survival and optimal performance of industries worldwide. Energy deficit poses a serious threat to the optimal performance of industrial processes, industrial growth...
Computation of Solar Radiation for Various Climatic Regions of India
Abstract: The historical weather datasets of different locations of India were complied for solar radiation, maximum and minimum temperatures and sunshine hours. Solar radiation is vital parameter, measured only at 35 me...
Effect of Additive Type and Percent on Soil Plasticity
Abstract:In the current study, the effects of three types of additive (lime, cement and cement kiln dust) on the plasticity of a soil are studied. The results of the study indicate plasticity index are affected by the ad...
Managerial Issues and Implications When Constructing Underground High Level Radioactive Waste Storage Facilities in the UK
Abstract: This is a research paper focused on assessing experienced project managers/senior engineer’s perceptions of managing various project issues relating to a proposed underground radioactive waste storage DGF proje...
Sustainable Neighborhood in Doha (State of Qatar): A Strategy for Achieving Urban Quality in Al-Hitmi
Abstract: Over the past two decades, gulf cities have been rapidly growing, mainly after the discovery of oil. Large-scale urban projects have been constructed as a result of globalization, which has affected the built e...