ABOUT NBRRI LAB
Dedicated to testing the properties of local and imported building materials like bricks, blocks, aggregates, cement, and timber.
Evaluates the performance of asphalt, bitumen, aggregates, and other materials used in road construction and rehabilitation.
Conducts tests on structural components, soil samples, and foundations to assess their strength, stability, and behavior under various loads.
Analyzes the chemical composition and properties of construction and road materials using advanced equipment.
Employs sophisticated techniques to evaluate the integrity of existing structures and infrastructure without causing damage.
Assesses the environmental impact of construction and road projects, focusing on factors like air quality, noise pollution, and wastewater management.
At NBRRI Laboratory, we offer a wide range of testing services to evaluate the quality, performance, and safety of construction materials, components, and systems.
Our pioneering, completely-automated laboratory is furnished with the latest infrastructure and instrumentation from the top-rated global brands to produce flawless results.
NBRRI Laboratory is committed to upholding the highest standards of quality assurance and quality control in all our testing procedures.
Our laboratory team comprises experienced technicians, engineers, and scientists with expertise in various disciplines related to construction materials and testing.
Research findings generated through laboratory testing inform government policies and regulations related to construction and road infrastructure development.
Researchers utilize the laboratories to experiment with and validate innovative materials, promoting local content and sustainability.
At NBRRI Laboratory, we offer a wide range of testing services to evaluate the quality, performance, and safety of construction materials, components, and systems.
Our pioneering, completely-automated laboratory is furnished with the latest infrastructure and instrumentation from the top-rated global brands to produce flawless results.
NBRRI Laboratory is committed to upholding the highest standards of quality assurance and quality control in all our testing procedures.
Our laboratory team comprises experienced technicians, engineers, and scientists with expertise in various disciplines related to construction materials and testing.
Research findings generated through laboratory testing inform government policies and regulations related to construction and road infrastructure development.
Researchers utilize the laboratories to experiment with and validate innovative materials, promoting local content and sustainability.
SERVICES
Correct sampling and preparation of soil samples is necessary to obtain detailed information regarding the sub-surface structure and engineering characteristics of the area under investigation. Augers are used for boring in cohesive soils or sands and gravels. This equipment can be used to obtain disturbed or undisturbed samples at reasonable depths, subject to ground conditions.
In-situ density is widely used to control the field compaction of earthworks and pavement layers
Atterberg limit tests are used to determine the critical water contents of fine-grained soils.
Liquid limit is the moisture content at which soil passes from the plastic to the liquid state. This can be determined using the; The Casangrande method and Cone penetrometer method.
Plastic limit is the lowest moisture content of a soil that will permit a sample to be rolled into threads of 3mm diameter without the threads breaking. This is determined using the Plastic limit test set
Shrinkage limit is the maximum moisture content at which the soil stops shrinking when dried. Linear shrinkage is determined using the shrinkage mould.
Particle density is a measure of the actual particles which make up the soil mass. It is used when calculating porosity, voids and when compaction and consolidated properties are being investigated
Analysis of soils by particle size provides useful engineering classification system from which a considerable amount of empirical data can be obtained. This can be determined using the Sieve analysis for gravel and sand size particles and sedimentation analysis for fine materials such as silt and clay
Soil compaction is the process of increasing the density of soil by packing the soil particles closer together causing a reduction in the volume of air present in the samples. This can be achieved using the Automatic Soil Compactor
California Bearing Ratio (CBR) test is an empirical test used for estimating the bearing value of highway sub-bases and sub-grades.
The direct shear test is used to determine the consolidated drained shear strength of a soil sample.
The Oedometer Consolidation determines the rate and magnitude of consolidation of a soil specimen with low permeability. Tests are carried out on specimens pre• pared from undisturbed samples.
Triaxial tests are used to investigate the stress-strain relationships in undisturbed, remoulded or compacted soil samples.
The combination permeameter apparatus is a combination of the constant head and falling head permeability set which is used to study the behavior of relatively coarse grained soils such as sands and gravels; fine grained soils such as clay-like or silty soils with respect to water flow.
The vicat test set determines the quantity of water required to produce a cement paste of standard consistency and setting time of cements.
The le chatelier method is used to determine the expansion of cement
The Blaine apparatus is used to determine the fineness of cement
The Le chatelier flask is used for determining the density of cement
Chemical analysis plays an important part in the categorization of cement.
The flame photometer is used to determine the constituent parts of cement
The muffle furnace is used for determining the loss on ignition and insoluble residue of cement
Correct sampling and mixing of fresh concrete is very important in the production of high quality concrete.
This test is used to determine the consistency and workability of fresh concrete.
This test is used to determine the compaction factor of concrete in low, medium and high workability
The compressive strength of hardened concrete can be tested using destructive and non-destructive methods.
This test determines the compressive strength of concrete cubes by crushing.
The concrete test determines the quality of concrete in finished structures such as buildings and bridges
This test determines the flexural strength of 100mm and 150mm square section concrete beams.
CRACK DETECTION MICROSCOPE
Analysis of coarse aggregates by particle size provides useful engineering classification system from which a considerable amount of empirical data can be obtained.
Buoyancy balance is used to determine the specific gravity of aggregates
Flakiness sieves and gauges are used to determine if aggregate particles are to be considered flaky.
This test provides a relative measure of the resistance of coarse aggregate to sudden shock or impact
This test provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load.
The Los Angeles Abrasion machine is used to determine the resistance of coarse Aggregates to fragmentation.
The digital point load test apparatus is used to determine the strength of rock samples.
The centrifuge extractor is used to determine the quantity of binder of bitumen in bituminous paving mixtures
This test determines the stability and flow parameter in asphalt mix design.
The vacuum pyknometer is used to determine the specific gravity of bituminous
The Cleveland flashpoint apparatus is used to test cutback bitumen and sometimes penetration grade bitumen
The ring and ball test set is used to determine the softening point of bituminous materials
The semi-automatic penetrometer is used to perform penetration test for asphalt/bituminous materials
The compact core drilling machine is used for the extraction of asphalt pavement samples
DYNAMIC SHEAR RHEOMETER TEST
Our global laboratories can provide diagnostics solutions for clinical trials across America, Europe and Asia.
9dok services can quickly deliver the information you and your doctor need for your most important health decisions.
With specialist research groups research at 9dok focuses on structural biology and molecular cell biology.
WHY WE’RE DIFFERENT?
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