In this section, we review some of the services that the laboratory provides

In this section, we review some of the services that the laboratory provides

Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions. This type of investigation is called a site investigation. Additionally, geotechnical investigations are also used to measure the thermal resistivity of soils or backfill materials required for underground transmission lines, oil and gas pipelines, radioactive waste disposal, and solar thermal storage facilities. A geotechnical investigation will include surface exploration and subsurface exploration of a site. Sometimes, geophysical methods are used to obtain data about sites. Subsurface exploration usually involves soil sampling and laboratory tests of the soil samples retrieved.Surface exploration can include geologic mapping, geophysical methods, and photogrammetry, or it can be as simple as a geotechnical professional walking around on the site to observe the physical conditions at the site.To obtain information about the soil conditions below the surface, some form of subsurface exploration is required. Methods of observing the soils below the surface, obtaining samples, and determining physical properties of the soils and rocks include test pits, trenching (particularly for locating faults and slide planes), boring, and in situ tests. These can also be used to identify contamination in soils prior to development in order to avoid negative environmental impacts.

Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions. This type of investigation is called a site investigation. Additionally, geotechnical investigations are also used to measure the thermal resistivity of soils or backfill materials required for underground transmission lines, oil and gas pipelines, radioactive waste disposal, and solar thermal storage facilities. A geotechnical investigation will include surface exploration and subsurface exploration of a site. Sometimes, geophysical methods are used to obtain data about sites. Subsurface exploration usually involves soil sampling and laboratory tests of the soil samples retrieved.Surface exploration can include geologic mapping, geophysical methods, and photogrammetry, or it can be as simple as a geotechnical professional walking around on the site to observe the physical conditions at the site.To obtain information about the soil conditions below the surface, some form of subsurface exploration is required. Methods of observing the soils below the surface, obtaining samples, and determining physical properties of the soils and rocks include test pits, trenching (particularly for locating faults and slide planes), boring, and in situ tests. These can also be used to identify contamination in soils prior to development in order to avoid negative environmental impacts.

جسات 1

Soil Investigation : The Soil investigation will be done to determine the depth and characteristics of the different subsurface formations, the required foundation depth, the most suitable and economical type of foundations, the allowable bearing capacities and expected settlement for the proposed structures along with the guidelines for earthwork construction specifications, cement type, backfill and other geotechnical recommendations. In summary, the soil investigation will be made as follows:
– Drilling the required number of boreholes till the required depth in all types of formations encountered.
– Engineering analysis will be made and detailed design criteria shall be provided to design the safe and economical foundation for the structures based on the in-situ and laboratory testing and findings

Our quality control program is made to control all the materials before, during and after construction. Basically, we conduct suitability tests on all proposed construction materials such as fill/soil materials, concrete and its aggregates, asphalt/bituminous mixtures and its aggregates, trial mixes, blocks and other related materials. Approval for use of the materials depends on testing results. Necessary tests during placement are also conducted. We quality assure in-situ materials for their specified properties.

Some of Soil Testing which we are performing in the lab:

(Soil Classification).
(Consistency).
(Moisture Content).
(Soil Density).
(Collapsibility Test ).
(Free Swell and Swelling Pressure).
(Consolidation Test).
(Direct Shear).

Some of Rock Testing which we are performing in the lab:

(Bulk density & Specific Gravity)
(Absorption)
(Porosity)
(Brazilian Test)
(Unconfined Compression test & Modulus of Elasticity test)
(Point Load Test)

Field Quality Tests:

Gssaat Lab performs numbers of field tests on soil, fresh concrete and asphalt:
1- Field Density Test.
2- Concrete castings monitoring tests, including:
A- Temperature determination and control.
B- Determining the drop value of the Slump cone test.
C- Determining the percentage of void in fresh concrete sample (Air Voids).

Our quality control program is made to control all the materials before, during and after construction. Basically, we conduct suitability tests on all proposed construction materials such as fill/soil materials, concrete and its aggregates, asphalt/bituminous mixtures and its aggregates, trial mixes, blocks and other related materials. Approval for use of the materials depends on testing results. Necessary tests during placement are also conducted. We quality assure in-situ materials for their specified properties. ​

The Gssaat Laboratory has been equipped with an advanced device that works with spectroscopy and other devices to carry out chemical tests on soil, rock and water samples, for example:
Determination of the percentage of dissolved salts.
Determination of chloride ions percentage.
Determination of the sulfate ions ratio.
Determine the PH.
Determination of magnesium ions.
The ratio of carb dioxide