قسم فحص واختبار مواد البناءConstruction Materials Testing Department

Section Overview & Service Delivery Model

NIRVI provides materials-testing services through a specialized consulting team and coordination with selected accredited laboratories in Yemen to deliver accurate, reliable, and technically documented results using modern equipment and qualified staff.

NIRVI’s service covers test selection, sampling coordination, sample identification, chain-of-custody follow-up, laboratory testing or coordination, and delivery of clear test reports showing the test type, technical reference, measured values, and relevant technical observations.

The service begins by identifying the required test and sample, followed by sample documentation, testing at NIRVI’s laboratory or an approved partner laboratory, and issuance of a documented test report to the client.

Test report

Request intake

Sample Documentation

Lab testing

NIRVI provides soil testing services for clients to verify soil properties and suitability for earthworks, foundations, and road layers. The service includes representative sampling, location and depth records, laboratory and field testing, and reports covering gradation, plasticity, classification, compaction, bearing capacity, and field density as required.

Plate Bearing Test

Sieve Analysis

These tests are required when evaluating soil sources, approving fill materials, designing or reviewing road layers, verifying field compaction, or obtaining documented data on bearing capacity and foundation-layer suitability.

Soil Classification

Atterberg Limits

California Bearing Ratio

Proctor Compaction Test

Field Density by Sand Cone

NIRVI provides concrete testing services for clients from fresh concrete sampling to cured specimens and concrete cores. The service includes sampling, slump and temperature checks, preparation of cylinders or cubes, curing follow-up, compressive strength testing, coring, and non-destructive testing when required.

Slump and Temperature

Compressive Strength

Technical Value: providing documented results on fresh-concrete properties and the actual strength of specimens or cores, enabling the client to verify compliance with specifications and determine whether additional testing is required when abnormal results appear.

Air Content and Unit Weight

Schmidt Hammer Test

Mortar/Grout Compressive Strength Testing

Concrete Coring

Water Quality Testing

NIRVI provides drinking-water quality testing services to assess water-source characteristics and evaluate suitability for potable use, supporting water-source assessment, rehabilitation, and water-supply network projects. Depending on the required testing scope, the service covers relevant physical, chemical, and microbiological parameters, including pH, total dissolved solids (TDS), chlorides, sulfates, and other parameters required under applicable drinking-water quality standards and specifications.

Depending on the required scope, testing may cover physical, chemical, and microbiological parameters such as pH, TDS, turbidity, chlorides, sulfates, nitrates, residual chlorine, and bacterial indicators when required.

Output: a clear report showing sample/source data, test parameters, measured values, technical reference, potability assessment, and supporting recommendations.