Setting Out
We can offer experienced engineering for accurate location, orientation and size measures to mark out plots, utilities, drainage, boundaries and roads. From small tools like string line and spirit levels to high precision equipment such as theodolites, total stations, GPS and laser tools, a variety of methods and tools are used to achieve accurate measures.
Topographical Survey
Creating a detailed and accurate representation of the physical features and contours of areas of a site is a very helpful method to plan, design and execute groundworks. It helps identify and map all structures, transportation, utilities, elevations or slopes and datums/benchmarks which provide a reference point for vertical and horizontal location.
Cube Testing
We provide cube testing for concrete pours during the scope of the project. Often used for structural concrete to ensure that the structural integrity of both the concrete mix design and specific batches meet the client's requirements.
The tests are undertaken after the mix design has been submitted and approved by the client. Typically, the tests are 100 x 100 x 100 mm cubes of concrete (can be 150 x 150 x 150 mm) and are tested for compressive strength at 7, 14 and 28 days.
The process has to be carefully executed to remove air bubbles, gain uniformity and correctly cure the concrete before testing, it is critical to meeting the compressive strengths required for the safety, durability and quality of the structure it is being used for.
CBR Testing
We also perform California Bearing Ratio (CBR) tests to measure the strength of subgrade soil, sub-base and base course material for road construction by measuring the resistance to penetration that the ground provides.
The results can be used to determine the thickness and composition required for the pavement layers, lower values (10% and below) show weaker materials and therefore require thicker layers, whilst higher values (30% and above) indicate strong materials so thinner layers are sufficient.
The tests are performed using a plunger device placed under a machine which applies a vertical load to the soil sample below.
They are essential tests for design and construction of durable pavements.