Laboratory

Laborotoriya

The sector of “Sukanal” Scientific-Research and Design Institute for ground and water studies determines physical and physical-mechanical features (natural moisture, density, specific weight, fluidity and rolling limits, porosity, maximal molecular water retaining, screeining rate, absoption, solution, rock compaction-proctor, settling and swelling test, single arrow and three angle compaction test, granularmetric content, natural decline angle, relocation test etc.) of ground samples found during enginnering geological surveys and hydrological investigation, determines their chemical content (general volume of salts with easy and medium dissolution, dry sediment, carbonates, sulphates, chlorides, hardness-general and permanent, hydrogen index-pH, soluble cations, general chemical content), potential contamination of rivers lakes and other water basin and fulfills balance calculation. At the same time the sector assesses ecological status of water resources, conducts their monitoring, forecasts quality changes of surface and ground water, determines effectiveness of existing treatments plants in water supply systems and recovers negative changes taking place at different stages of technological process, studies sand and reagents used in technological processes of water treatment plants with experimental methods, investigates waters and sedimentations with unknown origin.

“SUKANAL” SRDI laboratory research

1. Determine key physical-mechanical features of soil:

– Determine layer density, ASTM – D 2216;

– Determine specific weight, ASTM – D 854;

– Determine moisture of layer, ASTM – D 2216;

– Determine plasticity coefficient, ASTM – D 4318;

– Determine swelling, ASTM – D 4546;

– Determine granularmetric content, ASTM – D 422;

– Compaction test with modification proctor, ASTM – D 2216,  ASTM – D 854, ASTM – D 422, ASTM – D 1557;

– Conductivity test of compacted ground sample, ASTM – D1557, ASTM – D 2216, ASTM –D 2434;

–  Conductivity test of clay layer after compaction,  ASTM  –  D1557,  ASTM – D 2216, ASTM – D 2434;

– Determine volume of clay mass in pebble gravel layers, ASTM – D1557, ASTM – D 2216.

2. Determine chemical constitution of soil:

– Determine exposure limit of water environment to reinforced concrete facilities;

– Determine exposure limit of dry environment to facilities.

3. Microbiological determination of soil (determine microorganism attacking water supply facilities and pipes).

4. Study water resources:

– Observation of water quality changes depending on environmental factors and seasonal effects;

– Determine contamination level;

– Conduct sanitary-toxical monitoring, study forecasting of possible change;

–  For the purpose of setting technical guidelines carry out technical analysis of water in treatment plants, facilities (stage by stage) and  water supply networks to be designed;

– Apply coagulants and flocculants for purification and decolorization of water;

– Determine optimal dozes while neutralization of water through chlorination, ozonizing and other methods;

– Conduct screening of materials (sand screen), technological – laboratory tests;

5. Determine origins of corrosion and biological covers generated inside water supply and sanitation system pipes.

SOIL INVESTIGATION AND INGREDIENTS DETERMINED DURING GEOTECHNICAL WORKS