As society moves towards decarbonisation, it is important to assess the hydromechanical behaviour of binders that could offer a low-carbon alternative Portland cement in ground improvement technologies. This work considers two such alternatives: one still largely unexplored (metakaolin-based geopolymers) and better known (colloidal silica). Results from unconfined compressive strength, permeabi...

determination of crops water requirement in different environmental conditions is essential for preparation of precise and suitable irrigation scheduling. the effect of soil compaction and texture on crop coefficient and evapotranspiration of maize was investigated in this study, which was conducted as a factorial experiment with a completely randomized design in a research farm in jey and qaha...

Unsaturated soil shear strength is a significant topic in geotechnical engineering. The measurement of unsaturated properties such as and matric suction could be costly, hard, time-consuming, often impractical to obtain. purpose this research propose new model for predict the by using degree saturation directly because water easy More specifically, study focused on Bishop’s theory van Genuchten...

The İzmit Basin has developed under the control of North Anatolian Fault Zone (NAFZ). The basin is morphologically located in a plain between the Kocaeli Peneplane in the north and the Samanlıdağ Highlands in the south. NAFZ covering the study area in east west direction affects the region. Layers of sand and silty sand deposits are widespread in the alluvial basin. The groundwater level is con...

Ultrasonic velocities, densities and porosities for a set of coal and surrounding silty coal, silty shale, and shaly coal samples were measured in laboratory. The pressure effect, temperature effect, and saturation effect on velocities and anisotropy were evaluated. The results were compared and correlated with the well log data and discrepancies were analyzed. The potential influences of the c...

In many rivers of the Amazon, mainly along Amazon River, phenomenon "fallen land" occurs at time rivers' ebb, causing erosion river banks, resulting in major social and economic problems. The influence saturation/percolation soil layers on shear resistance affected massifs is unknown. Thus, main objective characterization geotechnical modelling these slopes to determine strength massifs. For th...

Gravelly soils are not well represented in current semi-empirical liquefaction procedures, which raises the question of whether state-of-the-practice evaluation methods based on sands applicable to gravelly soils. This paper investigates applicability Cone Penetration Test triggering and settlement procedures case histories well-graded reclaimed soil at CentrePort, New Zealand. Sensitivity stud...

Abstract The aim of the research was to identify influence environmental factors inherent in alluvial and displaced sands study region on growth Jack pine prospects for its cultivation. We found that success seedlings sandy soils depends a set factors, which include presence or absence, rhizosphere sand, humus impurities genetic horizons zonal soils, silty loamy layers, soil density composition...