Laboratory tests
Laboratory for the investigation of soil and slopes is equipped with all the tools necessary for the determination of the basic physical properties of materials. These findings are essential to finding the best solutions to a wide range of geotechnical problems.
Field research and measurements
Standard tests, that we carry out:
Visual classification according to TSPI - 05.200 (P,G) / USCS
Moisture content – SIST EN ISO 17892-1:2015
Loss on ignition
Bulk density of soils (easily measurable volume) – SIST EN ISO 17892-2:2015
Bulk density of rocks (non-easily measurable volume) – SIST EN ISO 17892-2:2015
Density of concrete and injection materials
Particle density – SIST EN ISO 17892-3:2016
Determination of bulk density and voids of aggregates in loose condition – SIST EN 1097-3:1999
Determination of water absorption using the Einslin device (Neff method) – DIN 18132:2012
Wet sieving – SIST EN ISO 17892-4:2017
Hydrometer analysis
Combined methods
Methylene blue value (MB) – SIST EN 933-9:2009+A1:2013
Grain size distribution of soils and aggregates – SIST EN ISO 17892-4:2017 (wet sieving, hydrometer, combined methods)
Atterberg limits – SIST EN ISO 17892-12:2018
Compressive strength
Uniaxial compressive strength of soils – SIST EN ISO 17892-7:2018
Uniaxial compressive strength of rocks – SIST EN 1926:2007
Concrete (hydraulically bound mixtures) – SIST EN 12390-3:2019
Injection materials (40×40×160 mm prisms) – SIST EN 12390-3:2019
Indirect determination of compressive strength of rocks (Schmidt hammer) – ASTM D5873; ISRM
Sample preparation (cutting, trimming, etc.) – SIST EN 12390-3, 12504-1
Core extraction from rock specimens
Compressive strength of chemically stabilized materials
Tensile and point load strength
Tensile strength of rocks (Brazilian test) – SIST EN 13286-42:2004
Point load strength index for rocks – ASTM D5731
Shear strength
Undrained shear strength (vane test) – ASTM D4648/D4648M-10
Undrained shear strength (fall-cone method) – SIST EN ISO 17892-6:2017
Direct shear test (3 specimens) – SIST EN ISO 17892-10:2019
Rotational shear apparatus (3 specimens)
Oedometer test without permeability measurement – SIST EN ISO 17892-5:2017
Oedometer test with permeability measurement – SIST EN ISO 17892-5:2017
Swell potential in oedometer – SIST EN ISO 17892-5:2017
Sample installation in oedometer
Oedometer with variable hydraulic head (1 stage)
Permeameter with constant hydraulic head
Permeability – SIST EN ISO 17892-11:2019
Optimum moisture content by Proctor test – SIST EN 13286-2:2010+AC:2013 (Standard Proctor Test – SPP and Modified Proctor Test – MPP)
California Bearing Ratio (CBR) – SIST EN 13286-47:2022 (with and without sample soaking)
Humus content – SIST EN 1744-1:2010+A1:2013
Our works
Stages of work
- Delivery of results to the client
- Submission of the final report in digital and/or printed format; explanation of results to designers or investors, if needed
- Examples of work:
Our advantages
since 1946
we work in the field of geology and geotechnics
Own equipment
for field and laboratory research
Full range of services
from geological research to geotechnical design
Standart ISO 9001
quality management system
Reviews
Jetmir Rakovec
Feedback from a construction company: “Working with your company left us with only positive impressions! The geological investigations for our project were carried out professionally and in the shortest possible time. All recommendations were clear and precise, which allowed us to avoid unnecessary costs during the construction phase. Special thanks for the detailed reports and your attentive approach to our requirements!”
Matej Kovačič
We required a geological report for the design of a residential house. The Geoinženiring team responded promptly, carried out the drilling and investigations smoothly, and without complications. Communication with the geologist was clear, professional, and timely. We are very satisfied with their approach.
Astrid Cvikl
I commissioned a geological survey for a house construction site and was very satisfied! The experts explained all the results in detail and provided clear recommendations regarding foundation selection. I was impressed by their high level of professionalism and friendly attitude. I highly recommend this company to anyone seeking reliable geological services!