Standard International Group (HK) Limited

ASTM D3080 Standard test method for direct shear test of soils under consolidated drained conditions ASTM D6243 Standard test method for determining the internal and interface shear strength of geo-synthetic clay liner by the direct shear method BS 1377:7 Soils for civil engineering purposes Part 7.Shear strength tests (total stress) EN ISO 12957 Geotextiles-Determination of friction characteristics-Direct shear test ASTM D5321 Standard test method for determining the shear strength of soil-Geo-synthetic and geo-synthetic-geo-synthetic interfaces by direct shear

Large straight shear instrument is the ideal instrument for measuring the shear capacity of soil and other raw materials (up to 20mm in size). In a mixed sample, it can measure 300 mm² of sample.
The vertical pressure for condensing the sample is provided by the automatic programming closed-loop hydraulic system. The horizontal displacement is driven by a high-precision stepper motor. The tester is controlled entirely by the microprocessor software. The motor controls the axial pressure and displacement, and the closed-loop system controls the vertical hydraulic system and test step. The user interface is a large single-color graphics with a 10-button anti-scratch keyboard.