[PDF] Top 20 Sudan Subgrade Soils Characteristics

... Abstract: - In this paper, Sudan climate and geographic features have been covered. Then a soil survey for Sudan soil types has been carried out. The locations of soil samples have been chosen in accordance ... See full document

... The samples are collected from the Perundurai zone of about 21 different locations around 2 Sq.km. The details of location from where sample is taken is shown in figure 1 and table1.The samples were collected in a ... See full document

... Compaction characteristics: OMC decreased and MDD increased with the increasing percentage of GGBS proportion in the ...Compaction characteristics of BC ... See full document

... Ayyar and Dipu (1997) studied the effects of coir composites on bearing capacity of sand. It was shown that coir fabrics increases the bearing capacity of sand subgrade significantly. Rajagopal and Ramakrishna ... See full document

... the characteristics of the soil ...The subgrade soil stabilization is one of the principal and major processes in the construction of any ...pavement subgrade by the application of soil-fly ash ... See full document

... these soils require a greaterthickness of base layer compared to stronger ones, resulting in tremendous increase in its initial andlifecycle ...andchemical characteristics. The waste materials weremixed ... See full document

... these soils are mostly of shallow depths. Likewise, the soils of the desert plain are affected with adjacent sand plains that appear in many places as infillings of old wadies interrupted in the ...of ... See full document

... The silicate gel proceeds immediately to coat and bind clay lumps in the soil and to block off the soil voids in the manner shown by Figure. In time, this gel gradually crystallizes into well-defined calcium silicate ... See full document

... Marei [5] conducted an experimental study to investigate the effect of using different techniques on the behavior of expansive soils. They found that using the method of removal and replacement by non-swelling ... See full document

... cotton soils have the properties of low strength and high compressibility, due to these properties black cotton soils are problematic ...cotton soils so many treatments are ...compaction ... See full document

... Zeolites are important industrial materials used in the separation and catalytic transformation of organic molecules. In general, it has been noted that the main research behind the use of natural zeolites as ... See full document

... All the civil engineering structures whether small or huge, simple or complex rests on the ground surface and ultimately transfers the structure load to soil or rock. Stability of any such structure depends on the ... See full document

... Class C fly ash is recommended as a suitable stabilizer for fine-grained plastic soils such as clay, as well as coarse-grained soil. The American Coal Ash Association (ACAA 2008) provides a detailed description of ... See full document

... Table 5 shows the basic properties and soil classification of the different pit representative samples summarized for untreated subgrade soil. All representative soil samples collected from each pit along the road ... See full document

... [13] Rao, A.S. Rao, K.V.N., Sabitha, G. and Suresti K., “Load deformation behavior of fiber-reinforced gravel beds overlying soft clay”. A National Conference on Corrective Engineering Practices in Troublesome ... See full document

... expansive clay minerals while the engineering factors include moisture content, plasticity and dry density. The local environmental conditions considered are the amount of clay fraction in the soil, initial moisture ... See full document

... Charles et al. [6] evaluated the geotechnical properties of an expansive clay soil found along Odioku – Odiereke road in Ahoada-West, Rivers State, in the Niger Deltaic region. The application of two cementitious agents ... See full document

... In Sudan volcanic deposits were reported, in Northern Bayouda, Gadarif, Miedob mountains, Tagabo, and Jebel ...Eastern Sudan, and Hamid (2002) [9] studied some fired clays pozzolanas (Blue Nile clay, kaolin ... See full document

... Water shortage is a major problem and animals depend mainly on Hafeers. Nutrition is a main constraint due to rangeland deterioration for many factors and seasonal variations in feeds quantity and quality associated with ... See full document

... The damaging effects of excess moisture on pavement have long been recognized. Moisture from a variety of sources can enter a pavement structure. Figure 2 shows that moisture in the subgrade and pavement structure ... See full document