Specific surface: determination and relevance

Canadian Geotechnical Journal - Tập 39 Số 1 - Trang 233-241 - 2002
J. Carlos Santamarina, Konrad Klein, Yu-Hsing Wang, E Prencke

Tóm tắt

Specific surface captures the combined effects of particle size and slenderness in a measurement that is independent and complementary to grain-size distribution. There are various methods to measure specific surface, including gas adsorption in dry conditions and selective molecular absorption in aqueous suspensions. The measurement procedure can have an important effect on measured values, yet such sensitivity is informative in itself. The amount of surface in a soil mass determines the balance between surface-related forces and gravimetric–skeletal forces acting on a soil particle, affects fabric formation, supports rich energy coupling mechanisms, governs conduction, and controls sorption and retardation during chemical diffusion.Key words: specific surface, surface area, methylene blue, gas adsorption, fabric, Atterberg limits, grain-size distribution.

Từ khóa


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Thông tin xuất bản

Canadian Geotechnical Journal

Tập 39 Số 1

233-241

Thông tin tác giả