In most construction works, crushed rock aggregates with angular shape are used as subgrade materials. However, naturally available rounded granular could be utilized in design of layers an alternative material for economic and environmental reasons. Therefore, a comparative study on the road pavement using two different shapes (angular rounded) same size (10–19 mm) has been conducted this pape...

In Nigeria, potassium permanganate (KMnO4) is used as a chemical oxidant in the removal of hydrocarbons from polluted soils and groundwater, but there no information on effects KMnO4 geotechnical properties soil. this study, was added separately to lateritic soil kaolin at concentrations 0 %, 2 5% 10 % by weight dry Each mixes then subjected grain size analysis, Atterberg limits, specific gravi...

Present study is undertaken to optimize the lubrication reliability and frictional loss of the dynamically-loaded jownal bearing with R600a refrigerant application. A mathematical model is developed for analyzing the dynamics of the journal bearing system with the mobility method. It takes into account the effects of the refrigerant species, aspect ratio, clearance ratio and surface roughness. ...

Soil modification is a technique for improving poor soil properties to make them suitable engineering projects. Regarding the previous studies, various types of stabilisations were used improve mechanical in soil. Several methodologies and experimental tests study positive negative effects utilising fibre on lime/cement-modified This paper reviews strength behaviour microstructural Fibre-Reinfo...

Background: Newborn gender ratio is one of the most important factors in livestock industry. This ratio has affected on economic condition and controls sex-linked genetically transferred diseases. Offspring sex ratio is affected by such various factors. One of these factors is the Y to X bearing sperm ratio in normal semen that is called primary sex ratio, season and individual differences are ...

Numerical modeling was carried out to investigate the responses of suction bucket foundations under vertical cyclic loading. Numerical results were compared with centrifuge experiment results. Before the capacity of the model suction bucket to resist cyclic loading could be investigated, the static pullout capacities had to be determined. The buckets with different aspect ratio are investigated...

Abstract Soils contaminated with hydrocarbons is a repetitive site condition that may occur at locations adjacent to underground fuel tanks and other facilities. The main purpose of this study characterize assess possibilities reusing soil in useful applications such as roadway embankments. Accordingly, controlled amounts diesel were mixed clays sands using percentages ranging from 0 13.5%. Unc...

Abstract Expansive subgrade soil needs to be re-engineered enhance the load-bearing capacity as it lacks sustain traffic and pavement load. Although various chemical modification techniques have proven effective for stabilization, they are expensive unsustainable. Coronus aggregate material is an uplifted coralline deposit abundantly available in Pacific. The current study focuses on strength b...

This study investigates the effect of pozzolana and quick lime as stabilizer materials on expansive soil properties. Disturbed sample was collected from Al-Qadarif city in east Sudan. The basic properties, swelling strength were measured. shows very weak high potential. Mineralogical analysis tests conducted to using XRD tests. contains significant amount montmorillonite mineral (86%). Laborato...

Abstract This paper illustrates application of a locally produced geogrid material for strength improvement expansive subgrade soil. Samples black, soft soil predominating the study area were collected from south western parts Modjo town, inside rift valley region central Ethiopia. X-Ray diffraction as well index property tests executed to identify and categorize expansiveness highly plastic Th...