빠른 지원
인증된 전문가에게 직접 연결
인증된 전문가에게 직접 연결
Applications
Erosion
Geotechnical engineering
Geo-Hydrologic research
Basic material research
Specifications
Soil sample rings: diameter 103x100 mm, height 30 mm
Shear container diameter: 68 mm
Roughness abrasive: P-40 (special proven quality)
Shear speed: manual
Shear force: Range digital scale: 0 – 5000 g
Resolution: 5 g
Dimensions: 50.5 x 24 x 21cm
Weight total set: approximately 10 kg
Description
The determination of very thin soil layers, such as soil crusts, requires very sensitive and very accurate equipment. In addition, the equipment should allow very small vertical stress application during measurement. Our surface shear test apparatus meets these requirements. Included in the set are:
Erosion test apparatus
Weights 50-2000 gr
Various accessories
The apparatus was developed in cooperation with Christian Albrechts University Kiel in Germany, a leading institution in soil compaction research. Read the interview with Prof. Horn of Kiel University for more information.
Shear strength measurement
Altered soil functions, in particular reduced hydraulic conductivities and impeded aeration, influence the top soil layers. This has an important effect on vulnerability to erosion, in particular.
Soil stability is a decisive factor for erosion risk reduction. Soil stability is determined by shear resistance or the angle of internal friction, depending on or varying through soil-water pressure and humus content. Soil shear resistance will increase with increasing organic carbon content. Air-dry soil state samples will result in the smallest resistance to shearing in comparison with the range of water content applied. The effect of bulk density on soil shear strength depends on the water content and is distinct for a higher range of vertical loads.
User groups
Laboratories
Universities
Research institutes
Educational institutes
Specifications - weight
Weight container: for about 40 g - 1.08 hPa
Weight 1: 50 g - 1.35 hPa
Weight 2: 100 g - 2.70 hPa
Weight 3: 200 g - 5.40 hPa
Weight 4: 500 g - 13.51 hPa
Weight 5: 1000 g - 27.01 hPa
Weight 6: 2000 g - 54.02 hPa
Manual
Brochure
