General Information
Type of service provider
Testing laboratory
Physical postal address
Lomé
Togo
Phone number
+228 22 25 62 83
E-mail
lnbtp [at] lnbtp.com
Website
Legal Status
Public
Has the laboratory been accredited in any scopes?
No
Does the laboratory have other sites?
No
Personnel
Chief Executive Officer (CEO) / Head of Organization
CEO Name
Bawubadi Malaki Tchamdja
CEO Phone
CEO E-mail
btchamdja [at] gmail.com
Total laboratory personnel
Total laboratory personnel
215
Male laboratory personnel
193
Female laboratory personnel
22
Technical personnel
Technical personnel total
174
Male technical personnel
164
Female technical personnel
10
Technical Information
Testing
Laboratory services offered
Civil engineering and construction
Scope of services offered
Test object or product tested or matrices
Soil in place
Test parameter/ properties measured
Ground resistance
Type of test/ instrumentation used
Dynamic penetration test
Methods
NF P 94-115
Accreditation status
No
Test object or product tested or matrices
Soil in place
Type of test/ instrumentation used
Ménard pressuremeter test
Methods
NF P 94-110-1
Accreditation status
No
Test object or product tested or matrices
Compacted platforms
Test parameter/ properties measured
Apparent density
Type of test/ instrumentation used
Density of a material in place
Methods
NF P 94-061-1 to 3
Accreditation status
No
Test object or product tested or matrices
Compacted platforms
Test parameter/ properties measured
Module under static loading
Type of test/ instrumentation used
Platform bearing capacity: module under plate loading
Methods
NF P 94-117-1
Accreditation status
No
Test object or product tested or matrices
Concrete in structures
Test parameter/ properties measured
Rebound index
Type of test/ instrumentation used
Concrete test in structures
Methods
NF EN 12504-2
Accreditation status
No
Test object or product tested or matrices
Soils altered or intact
Test parameter/ properties measured
Water content
Type of test/ instrumentation used
Determination of the water content by weight by steaming method
Methods
NF P 94-050
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
Consistency index
Type of test/ instrumentation used
Determination of Atterberg limits (liquidity limit - plasticity limit)
Methods
NF P 94-051; NF P 94-052-1
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
Density of fine soils
Type of test/ instrumentation used
Determination of the density of fine soils in the laboratory (method involving the cutting kit, the mold and the immersion in water)
Methods
NF P 94-053
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
Density of solid particles
Type of test/ instrumentation used
Determination of the density of solid particles in soils: method using a water pycnometer
Methods
NF P 94-054
Accreditation status
No
Test object or product tested or matrices
Altered or intact soils
Test parameter/ properties measured
Organic matter content
Type of test/ instrumentation used
Determination of the weight content of organic matter in a soil
Methods
NF P 94-055
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
Mass distribution of grains according to their dimensions
Type of test/ instrumentation used
Particle size analysis: sieving and sedimentation method
Methods
NF P 94-056; NF P 94-057
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
The quantity and activity of the clay fraction
Type of test/ instrumentation used
Methylene blue absorption capacity measurement
Methods
NF P 94-68
Accreditation status
No
Test object or product tested or matrices
Soils
Test parameter/ properties measured
Cohesion and angle of internal friction - Effective normal stress - shear stress - horizontal shear stress
Type of test/ instrumentation used
Straight Shear Box Test - Direct Shear
Methods
NF P 94-071-1
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
CBR index after immersion - Immediate CBR index - Immediate bearing index
Type of test/ instrumentation used
CBR index after immersion - Immediate CBR index - Immediate bearing index
Methods
NF P 94-078
Accreditation status
No
Test object or product tested or matrices
Soils
Test parameter/ properties measured
Compression index - Swelling index - Consolidation coefficient - Preconsolidation stress - Oedometric modulus
Type of test/ instrumentation used
Oedometric test
Methods
XP P 94-090-1
Accreditation status
No
Test object or product tested or matrices
Soils
Test parameter/ properties measured
Inflation pressure - Deformation
Type of test/ instrumentation used
Oedometer swelling test
Methods
XP P 94-091
Accreditation status
No
Test object or product tested or matrices
Altered soils
Test parameter/ properties measured
Maximum dry density - optimum water content
Type of test/ instrumentation used
Normal Proctor Test - Modified Proctor Test
Methods
NF P 94-093
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Sampling
Type of test/ instrumentation used
Tests to determine the properties of aggregates - sampling method
Methods
NF EN 932-1
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - laboratory sample reduction method
Methods
NF EN 932-2
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - simplified petrographic description
Methods
NF EN 932-3
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - quantitative and qualitative system for the description of petrography
Methods
NF EN 932-4
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - Common equipment and calibration
Methods
NF EN 932-5
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - Definitions of repeatability and reproducibility
Methods
NF EN 932-6
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Tests to determine the properties of aggregates - compliance criteria for test results
Methods
NF EN 932-7
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Dimensional distribution of grains
Type of test/ instrumentation used
Tests to determine the geometric characteristics of aggregates - particle size analysis by sieving
Methods
NF EN 933-1
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Accuracy of nominal dimensions and shape of sieve openings
Type of test/ instrumentation used
Accuracy of nominal dimensions and shape of sieve openings
Methods
NF EN 933-2
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Kurtosis coefficient
Type of test/ instrumentation used
Determination of the shape of aggregates - Kurtosis coefficient
Methods
NF EN 933-3
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Chippings form index
Type of test/ instrumentation used
Determination of the shape of aggregates - shape coefficient
Methods
NF EN 933-4
Accreditation status
No
Test object or product tested or matrices
Aggregates
Type of test/ instrumentation used
Evaluation of surface characteristics - Percentage of broken surfaces in chippings
Methods
NF EN 933-5
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Coefficient of flow of chippings and sands
Type of test/ instrumentation used
Assessment of surface characteristics - determination of the flow coefficient of the chippings
Methods
NF EN 933-6
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Shell material content of chippings
Type of test/ instrumentation used
Determination of the content of shell elements - percentage of shells in the chippings
Methods
NF EN 933-7
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Fines content
Type of test/ instrumentation used
Assessment of fines - Sand equivalent
Methods
NF EN 933-8
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Fines content
Type of test/ instrumentation used
Assessment of fines - Methylene blue test
Methods
NF EN 933-9
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Particle size composition by mass of fillers
Type of test/ instrumentation used
Determination of fines - Granularity of fillers
Methods
NF EN 933-10
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Micro-Deval coefficient
Type of test/ instrumentation used
Tests to determine the mechanical and physical characteristics of aggregates: determination of wear resistance
Methods
NF EN 1097-1
Accreditation status
No
Test object or product tested or matrices
Aggregates
Test parameter/ properties measured
Los Angeles coefficient
Type of test/ instrumentation used
Tests to determine the mechanical and physical characteristics of aggregates: methods Determination of resistance to fragmentation
Methods
NF EN 1097-2
Accreditation status
No
Test object or product tested or matrices
Cement
Test parameter/ properties measured
Physical and chemical characteristics: compressive strength, flexural strength, setting time, stability, setting time, apparent density, fineness, etc.
Methods
NF EN 196-1; NF EN 196-2; NF EN 196-3
Accreditation status
No
Test object or product tested or matrices
Hydraulic concrete
Test parameter/ properties measured
Tests on fresh and hardened concrete: sag, compactability, compressive strength, flexural strength, and density
Accreditation status
No
Test object or product tested or matrices
Bitumen and emulsion tests
Test parameter/ properties measured
Penetrability, ball and ring, relative density, viscosity, breaking index of emulsions, water content of emulsions, residues on sieve and PH, etc.
Accreditation status
No
Test object or product tested or matrices
Bituminous and coated concrete
Type of test/ instrumentation used
Binder recovery, real density, apparent density, Marshall tests, Duriez test, PCG test and rutting
Methods
NF EN 1212697-5, NF EN 12697-6, NF EN 12697-34, NF EF 12697-35, NF EN 12697-31, NF P 98-251-1
Accreditation status
No
Does the laboratory conduct sampling, upon request of the client, of products to be tested?
Yes
Proficiency Testing
Does the lab participate in proficiency testing for accredited scopes
No
Does the lab participate in proficiency testing for non-accredited scopes
No
Inter-laboratory comparison
Yes
Interlaboratory comparison scheme
We participate in a campaign of Intercomparison between laboratories of the West African sub-region (Togo, Benin and Ivory Coast). These campaigns involve tests on soils, aggregates and concrete.
List of participating laboratories: LNBTP (Togo) - GEOTECH (Togo) - LAB TP (Togo) - ATS (Benin) - LERGC (Benin) - CNERTP (Benin) - LABOGEM (Ivory Coast) - LAGECO (Ivory Coast).
List of participating laboratories: LNBTP (Togo) - GEOTECH (Togo) - LAB TP (Togo) - ATS (Benin) - LERGC (Benin) - CNERTP (Benin) - LABOGEM (Ivory Coast) - LAGECO (Ivory Coast).
Does the laboratory sub-contract testing work to other laboratories?
Yes
Outsourced services
Chemical tests on materials
Documented policies, procedures and records for the qualification, assessing and monitoring of all outsourced services providers
No
Quality Control / Quality Management
Does the lab operate an internal quality control (QC) system to ensure quality of test results?
Yes
Does the lab operate a management system (or Quality Management System) for assuring the quality of results?
Yes
Is the system documented in a Quality Manual?
Yes