Results 21 to 30 of about 462 (132)

Understanding the effect of compaction energies on the strength indices and durability of oyster shell ash-lateritic soil mixtures for use in road works

Engineering and Applied Science Research, 2021
The current study examined the use of experimental and statistical approach to assess the influence of compaction energies on geotechnical behaviour of lateritic soil stabilized with up to 15 % oyster shell ash (OSA) by weight of the dry samples.
Imoh Christopher Attah, Roland Kufre Etim, Paul Yohanna, Idorenyin Ndarake Usanga   +3 more
doaj  

GEOTECHNICAL CHARACTERISTICS OF LATERITIC SOIL STABILIZED WITH SAWDUST ASH-LIME MIXTURES [PDF]

Civil Engineering Journal, 2017
This study assesses the geotechnical characteristics of lateritic soil and sawdust ash lime (SDAL) mixtures. Preliminary tests were carried out on the natural soil sample for identification and classification purposes. The sawdust was mixed with lime for
Emeka Segun Nnochiri, Helen Oluyemisi Emeka, Moses Tanimola   +2 more
doaj   +1 more source

GEOTECHNICAL PROPERTIES AND APPLICATIONS OF IRON ORE TAILINGS-AMENDED LATERITIC SOIL FOR ROAD CONSTRUCTION

Rudarsko-geološko-naftni Zbornik
The abundance of lateritic soils in Nigeria has made them one of the most used materials for road construction. However, many of these soils exhibit substandard geotechnical properties, necessitating improvements before their deployment in road ...
Sunday Olabisi Daramola, Ayodele Olumuyiwa Owolabi, Olushola Daniel Eniowo, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +5 more
doaj   +1 more source

The Role of Additives in Soil-Cement Subjected to Wetting-Drying Cycles

Infrastructures, 2021
This study aimed to explore the use of additives in soil–cement mixtures that have undergone a wetting-drying cycle. In total, two types of soil were used, granitic and lateritic, which are widely used in road base construction in the Katingan area ...
Yulian Firmana Arifin, Eka Agustina, Fransius Andhi, Setianto Samingan Agus   +3 more
doaj   +1 more source

Integrated hydrologic and hydrodynamic modeling for flood hazard assessment in Ajay River Basin, West Bengal, India

River, EarlyView.
Abstract The Ajay River, originating from the Chotanagpur Plateau (Bihar) and flowing through Jharkhand into West Bengal before merging with the Bhagirathi‐Hugli near Katwa, is among the most flood‐prone rivers in the region. Its lower reaches frequently experience rainfall‐induced flooding and embankment breaches during the mid‐ to late‐monsoon season.
Shanku Ghosh, C. Prakasam
wiley   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

Conservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula, Lucas N. Perillo, Gianluigi Ottaviani, Flávio F. Carmo, Mandar N. Datar, Katherine C. Enebeli‐Ekwutoziam, Bruno Fogliani, Stephen D. Hopper, Aboli Kulkarni, Hans Lambers, Rafael F. Magalhães, Frederico S. Neves, Jean‐François Ponge, Stefan Porembski, Bruno H. P. Rosado, Fernando M. G. Santos, Elycée Tindano, Bram Vanschoenwinkel, Aparna Watve, Fernando A. O. Silveira   +19 more
wiley   +1 more source

Effect of Admixture on the Hydraulic Conductivity of Compacted Loess: A Case Study

Advances in Civil Engineering, 2020
Hydraulic characteristic of the exposed ground plays an important role in the construction of “sponge city,” which is a popular concept in the world recently.
Pan Liu, Xuejiao Zhang, Min Zhang, Xueqiang Yang   +3 more
doaj   +1 more source

The Global South's OCBIL Theory Helps Elucidate Evolution, Ecology, and Conservation in Biological and Cultural Diversity

New Zealand Journal of Zoology, Volume 53, Issue 3, September 2026.
Ecological theory has been shaped disproportionately by studies conducted in young, disturbance‐prone, relatively fertile landscapes (YODFELs), mostly in the Global North. Yet, many megadiverse regions in the Global South are dominated by old, climatically buffered, infertile landscapes (OCBILs), resulting in fundamentally different patterns that ...
Stephen D. Hopper, Fernando A. O. Silveira   +1 more
wiley   +1 more source

Dipole in North African Dust Deposition at the Last Glacial Maximum Explained by Shifted Wind Direction Under Steepened Meridional Temperature Gradients

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Geological records strongly suggest that, globally, Earth's atmosphere was much dustier than present during the Last Glacial Maximum (LGM) but the explanation is debated, with greater aridity, stronger/gustier winds and less effective washout from a drier atmosphere all invoked. Yet dust deposition can be spatially complex.
Fangjingcheng Zhu, Peter O. Hopcroft, Samuel Albani, Minmin Fu, Anya J. Crocker, Chuang Xuan, Paul A. Wilson   +6 more
wiley   +1 more source

Iron Isotopes Reveal Fe Export Driven by Change of Tropical Weathering Regime

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Unraveling paleoenvironmental signals recorded in laterites is crucial for quantifying weathering‐driven elemental fluxes at the Earth's surface. New stable iron isotope data (δ56Fe), combined with (U‐Th)/He ages in Fe‐oxides from a ferruginous duricrust from French Guiana, reveal the response of Fe hosted in laterite to past changes in ...
Z. Fekiacova‐Castanet, B. Heller, D. Guinoiseau, J. Bouchez, A. Duvivier, S. Cornu, A. Guihou, C. Quantin, T. Allard, S. B. Riffel, P. Deschamps, C. Gautheron   +11 more
wiley   +1 more source