This includes taking samples of aggregate from stock piles, of fresh concrete, tack coat and hot asphalt, soils and building blocks. Cores are cut from asphalt for routine QC, while from concrete for determinations of strength or chloride, sulphate and carbonation. Other construction materials include concrete mixing water and pavers.

Typical tests include the electrical and thermal resistivity of soils and field density by either sand replacement or nuclear gauge, site CBR, plate load test.
Properties of fresh concrete usually determined are slump, temperature, air content and density.

Measurement of density and compressive strength of cylinders and cubes and the grading of aggregate are routinely carried out. Other concrete tests include core evaluation (e.g. strength, density, chloride and sulphate contents, carbon dioxide penetration) as well as rapid chloride permeability, water "penetrability" and volume of permeable voids. Asphalt samples are tested for composition, density and layer thickness. The laboratory also tests cement for fineness and undertakes concrete and asphalt mix design. The detailed List of laboratory tests are,

We offer consultancy services on many aspects of construction and materials technology. These include appraisal of specifications, establishment of QA and QC schemes for material / product assessment, failure investigations and statistical analysis of performance tests. We are also able to devise test methods where no suitable standard exists.