This research aimed at testing the viability of using Sorghum Stalk Ash (SSA) as a partial replacement lime in stabilization red clay soils for road subgrade construction. Red have been identified highly expansive soils, which are affected by both climatic conditions and loading patterns. The consideration traffic patterns effects on these has taken into account. A penetration test 2.5 mm used ...

We documented riparian primary succession on an expansive floodplain (Kol River, Kamchatka, Russian Federation) that receives large nitrogen subsidies from spawning Pacific salmon. As is typical of primary succession, new alluvial deposits in the lower Kol floodplain were nitrogen poor (200 kg persulfate N/ha to 10 cm soil depth); however, nitrogen accumulated rapidly, and soils contained 1600 ...

Unsaturated swelling soil behaviour is governed by the matric suction, thus predetermination of stress for expansive unsaturated requires rigorous procedures. However, some equations assume full saturation soil, which leads to over-design infrastructure. This study focused on validation predictive models that correlate suction with other properties. Three were developed, and independent data us...

Abstract. The analysis of GSA for the stabilization soil samples is subject this research paper. In recent years, techniques have been effective in improving shear strength parameters poor soils. a naturally occurring substance that causes human health and environmental issues. Physical properties were calculated, including Atterberg's limits, compaction characteristics, characteristics virgin ...

Expansive soil is generally found in arid and semi-arid regions of the world. One main issues with these expansive soils their swelling properties when natural water content increases. The various swell-shrink tendencies cause numerous substructure distress infrastructures such as buildings, pavements, breast walls, among others. Geotechnical engineers have worked hard to understand behavior ex...

The paper examines studies based on the theory of expansive learning, formulated in 1987. In recent years the theory has been used in a wide variety of studies and interventions. The theory builds on foundational ideas put forward by Vygotsky, Leont’ev, Il’enkov, and Davydov, key figures in the Russian school of cultural–historical activity theory. Studies based on the theory are reviewed in si...

Multi-belled piles are with enlarged ends; these have one or further bells at the lower third part of pile. These suitable for many soils problems such as softening clay, variation groundwater table, expansive soils, black cotton soil, and loose sand. The current study reviewed behavior belled in multi-layer subjected to axial compression pullout loading. review covered experimental theoretical...