Results 151 to 160 of about 1,631,965 (189)

Sulfate and Gypsum Determination in Saline Soils

Soil Science Society of America Journal, 1987
Abstract Despite advances in instrumentation for direct determination of SO 2‐ 4 , many investigators analyzing saline soils continue to estimate SO 2‐ 4 by difference between the sums of major ...
R. L. Skarie, J. L. Arndt, J. L. Richardson   +2 more
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The terminology and the concepts of gypsum-rich soils

Geoderma, 2000
Abstract Many terms in earth sciences, and their underlying ideas, have been developed in temperate–humid countries. Both geological and climatic reasons cause gypsum-rich soils to occur in dry lands. Soil science has paid little attention to gypseous soils, and this limited knowledge is reflected in the direct loan of customary terms of soil science
J Herrero, J Porta
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Investigation on the mechanical properties of gypsum soil

Proceedings of the Institution of Civil Engineers - Construction Materials, 2014
Gypsum soils are considered to be a class of problematic soils which cause severe damage to highways and many other engineering infrastructures. They have an acceptable strength and stiffness in their natural state, but often have low strength and large settlement when soaked.
Ali R. Estabragh, Samaneh Kargar, Akbar A. Javadi   +2 more
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Reclamation of Saline-Sodic Soils with Gypsum and MSW Compost

Compost Science & Utilization, 2004
The effectiveness of sequential application of gypsum followed by matured mixed municipal solid waste (MSW) compost was investigated for the reclamation of saline-sodic soils. Soil plots were treated with 50 dt/ha (dry tone/hectare) of gypsum, followed by the addition of matured MSW compost at the 50, 100, and 150 dt/ha with five replications for each ...
Canbolat, Mustafa Yıldırım, Kızıloglu, Fatih Mehmet, Buyuksonmez, F, Hanay, Abdurrahman   +3 more
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Micromorphology and Genesis of Soils Enriched with Gypsum

1990
Abstract Secondary gypsum occurs in soils in a wide range of forms, from single crystals in the groundmass to strongly cemented layers. They have been termed gypsic and petrogypsic horizons, following S.S.S. (1960), but other geological or popular terms have also been used.
J. Porta, J. Herrero
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Supersaturation of soil solutions with respect to gypsum

Plant and Soil, 1991
The products of activities of calcium and sulphate were calculated for solutions of 75 glasshouse soils. The majority of these products was found to be higher than the solubility product of gypsum, thus indicating that these soil solutions were possibly supersaturated.
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Gypsiferous Soils and Gypsum Beds

Civil Engineers encounter serious problems when dealing with structures (buildings, roads, dams, etc.) built on gypsiferous soil or near-surface gypsum beds. However, gypsum (CaS0 4 .2H 2 O) in soil with small quantities is beneficial for plants, due to its soluble properties in the water. So it has two impacts on our lives; negative and positive. This
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Gypsum, Copper, Soil

2022
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Evaluation of engineering properties and environmental effect of recycled gypsum stabilized soil in geotechnical engineering: A comprehensive review

Resources, Conservation and Recycling, 2021
Shaoyun Pu, Wangwen Huo
exaly  

DISSOLUTION OF GYPSUM IN ALKALI SOILS

Soil Science, 1985
R. K. GUPTA, C. P. SINGH, I. P. ABROL
openaire   +1 more source