AGGREGATE TESTING

Aggregate Testing Laboratory in Qatar

TEL is an independent third-party aggregate testing laboratory in qatar, we provide you with highly specialized personnel, technology and testing, material test such as gabbro, limestone, grading, crushing value, soundness,  sulphate, chloride, sieve, plasticity index etc.

aggregate testing

 

Aggregates make up the largest volume (66% to 78%) of material used in concrete and Asphalt. The aggregates for the normal use must be properly graded, hard, sound, durable, and free from chemicals or coatings of clay or other foreign materials that may inhibit the bond between the binding material and aggregate. Test on Aggregate must be performed to make sure that meet all these criteria.
TEL is one of the best aggregate testing laboratory in Qatar, we perform a wide range of the testing on aggregates. We take pride in our work and with our experienced staff and latest equipment. we promise to give you best possible and most reliable results.

Testing list as per QCS 2014

S.N. Requirement BS/EN ASTM
1 Grading 933-1
2 Natural: materials finer than 0.063 mm.
Crushed rock: materials finer than 0.063mm.		 933-1
933-1
3 Structural concrete Sand Equivalent (%) 933-8
4 Non-structural concrete Methylene blue adsorption value3(0/2mm) 933-9
5 Clay lumps and friable particles C142
6 Lightweight pieces C123
7 Organic impurities for fine aggregates C40
8 Water absorption (saturated surface dry) 1097-6
9 Particle density for normal weight concrete 1097-6
10 Shell Content: 933-7
11 Flakiness index 933-3
12 Reinforced and mass concrete 1744-5
1744-5
13 Acid-soluble sulphate 1744-1
14 Soundness by magnesium sulphate (5 cycles) 1367-2
15 Resistance to fragmentation: Los Angeles abrasion 1097-2
16 Drying shrinkage 1367-4
17 Potential reactivity: BS 206-1 & BS 8500
18 Plasticity index ASTM D 4318
19 Sand equivalent value ASTM D2419
20 Soundness by magnesium sulphate ASTM C88
21 Acid soluble chloride content BS 1377 Part 3
22 Acid soluble sulphate content BS 1377 Part 3
23 Los Angeles Abrasion ASTM C131 / C535
24 Aggregate Crushing Value (ACV) BS 812 Part 110
25 Gradation (Combined) ASTM C136
26 Flat and Elongated ASTM D4791
27 Fractured Faces ASTM D5821

Other Services:
Concrete Testing
Soil Testing
Asphalt Testing
Water Testing
Geotechnical Soil Investigation
thermal resistivity / conductivity 

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CONCRETE TESTING

Concrete Testing Laboratory in Qatar

There are so many tests available for testing of hardened concrete & fresh concrete. Slump, air content, unit weight and compressive strength tests are the most common tests for concrete. Our full range of independent concrete testing services can help ensure the quality of your concrete.
Technical Engineering Laboratory (TEL) offers a wide variety of on and off-site concrete tests on both fresh and hardened concrete. Our teams of experienced technical staff will attend your site and carry out testing for fresh concrete.

1 Compressive strength of cubes
2 Water Absorption of in Hardened Concrete
3 Flexural Strength of beam
4 Transverse Strength of Kerbstone
5 Water Absorption of Kerbstone
6 Compressive Strength of Kerbstone
7 Compressive Strength of Masonry Unit (blocks)
8 Water Absorption of Blocks
9 Compressive Strength of Paving Blocks
10 Water Absorption of paving Blocks
11 Compressive Strength of Concrete Core (Including Drilling up to 20 cm)
12 Modulus Elasticity (3 cylinder)
13 Density of cube
14 Water permeability (Din)
15 Air content
16 Bleeding
17 Slump, temperature and density
18 Concrete setting time
19 Sulphate content
20 Choride content
21 Physical analysis of cement
22 Chemical analysis of cement
23 Compressive strength for 3, 7 and 28 days
24 MsSO4 soundness
25 Consistency and setting time
26 Fineness
27 Miro silica chemical and physical
28 GGBS(chemical and physical)
29 Chloride content
30 Compressive strength of cylinder
31 Air content

 

SOILS TESTING

Soil is one of the most abundant building materials on earth. Each project starts at the ground level and the soil needs to be tested to ensure it can support the loads of the project. In today’s demanding construction environment, contractors can’t afford not to have real-time testing performed during soils placement. Construction Engineering Labs recognizes your need for expediency and is standing by with qualified individuals trained to operate the latest in density testing gauges and provide you with crucial compaction information.

1 Sieve Analysis
2 Moisture content
3 Atterberg limits (L.L,P.L & PI)
4 Maximum dry density moisture content relationship
5 California Bearing Ratio (soaked) 1 point
6 In situ density test( min 5 points) by sand Replacement method
7 Acid soluble sulphate
8 Acid soluble chloride
9 Organic Impurities
10 Linear shrinkage
11 Plate bearing test(reaction load to be provided by client)
12 MgSO4 Soundness
13 IRT
14 Bulk density
15 Electrical resistivity
16 Thermal conductivity of soil(kd2)
17 Sand equivalent value
18 Chloride content

ASPHALT TESTING

TEL conducts physical and chemical Asphalt testing as per BS, EN, ASTM and AASHTO Standard. Technical Engineering Laboratory is a leading independent asphalt testing laboratory in qatar which provide test such as Bulk Density, Soluble Binder Content, Penetration of Bituminous, Marshall Test, Bitumen Mix Designs, Marshall Stability and Flow, Sieve Analysis, Softening Point, Viscosity, Flash and Fire, Theoretical Maximum Specific Gravity and Density, Asphalt Coring & Testing, cores etc.
We provide inspection, testing, and documentation services in concert with our extensive range of in-depth field and lab work

Asphalt testing

 

Thousands of tons of asphalt are placed every year on the roads and streets throughout the State of Qatar. Construction Engineering Labs leads the field when it comes to accurate, timely, and professional consulting and testing on Hot Mix Asphalt Pavement projects. From design of high-quality HMA to testing and inspection during construction to analysis of previously placed pavements, Technical Engineering Laboratory has got covered all testing list below.

Asphalt Testing List:

1 Determination of Bulk Density
2 Determination of Thickness of Specimen
3 Soluble Binder Content
4 Particle Size Distribution (Sieve Analysis)
5 Penetration of Bituminous Materials
6 Determination of Softening Point (Ring and Ball method)
7 Flash and Fire Points
8 Hot Mix Asphalt Marshall Test
9 Marshall Stability and Flow of Bituminous Mixture
10 Hot mix asphalt Sampling
11 Theoretical Maximum Specific Gravity and Density
12 Determination of The Dimensions of a Bituminous Specimen
13 Density of Semi-Solid Bituminous Materials
14 Determination of void characteristics
15 Solubility of Asphalt Materials in Trichloroethylene
16 Ductility of Bituminous Materials
17 Hot mix asphalt. Temperature measurement
18 Extraction of Bitumen from Bituminous Paving Mixtures
19 Determination of Viscosity of Asphalt
20 Practice for Sampling Bituminous Paving Mixtures

Other Services:
Aggregate Testing
Concrete Testing
Soil Testing
Water Testing
Geotechnical Soil Investigation
Thermal resistivity / conductivity

WATER / CHEMICLES

SN Test Parameter Test Method
1 Total Dissolved Solids (TDS) mg/L APHA – 2540 C
2 Total Alkalinity APHA – 2320 B
3 Chloride content APHA 4500CI B
4 Total Hardness APHA 2340 C
5 Sulphate content HACH 8051
6 Calcium APHA 3500 CA b
7 Magnesium APHA 3500 Mg B
8 Nitrate (NO3) mg/L HACH 10049
9 Chlorine Resdual APHA 4500 Cl B
10 Fluoride HACH 8029
11 Copper SMEWW 3111
12 Sodium SMEWW 3111
13 Iron SMEWW 3111
14 Manganese SMEWW 3111
15 Aluminum SMEWW 3111
16 Turbidity (NTU) DIN EN ISO 7027 / APHA 2130 – B
17 Lead (Pb) USEPA 200.7 / ICP-OES
18 Zinc (Zn) USEPA 200.7 / ICP-OES
19 Apparent Colour @ 455 nm Test – 2120 C / Hach Method 8025
20 pH Value @ 25oC Test – 4500 – H+B
21 Electrical Conductivity @ 25oC (µs / cm) Test 2510 B
22 Faecal Coliforms (Counts / 100ml Sample) Test – 9222 D

Geotechnical Investigation

Geotechnical investigations are performed to obtain data on physical characteristics of soil/rock around a site to design earthworks & proposed structures, or to support the repair of distressed earthworks/structures caused by subsurface issues.