Services
Aggregate Testing
Acceptance and Quality Assurance testing of aggregate is done through various methods. CMT is able to carry out all of these methods: - ACV (Aggregate crushing value) - 10% Fact and wet/dry ratio - Flakiness index - ALD (Average least dimension) - Sieve analysis - Bulk relative density - Apparent relative density - Water absorption - Riedel and Weber adhesion - Sieve analysis - Bulk relative density - Apparent relative density - Water absorption - Sound equivalent - Organic impurities - Soluble deleterious material - Water soluble salts and sulphates
Concrete Testing
During the construction process, various quality standards need to be met to ensure all materials used in the building process meet the high standards of the building industry. Our experienced staff are able to provide the following services to this specialized field - Batch plant efficiency - Routine site testing - Site sampling - Core drilling and core testing - Flexural strength testing on concrete beams Strength testing on concrete masonry units such as bricks, blocks, and paving units is also conducted. Additional testing on masonry units would include absorption, efflorescence (dimensions), shrinkage and expansion
Asphalt Testing
We offer the full scope of design and acceptance testing on hot mix asphalt
either in our laboratory or on-site namely:
- HMA Design (Hot Mix Asphalt)
- Gyratory compaction
- Modified Lottman
- Mobile load simulator (MMLS3) evaluation
Customers receive the most accurate evaluation of properties such as
strength, durability, reliability, longevity, rutting, and fatigue.
A fully compliant binder testing laboratory is incorporated into our asphalt
testing laboratory for design evaluations, control testing, and
acceptance
testing such as the Brookfield Viscosity Test on polymer modified binders.
Our quality assurance and control testing procedures incorporate:
- Marshall control
- Indirect tensile strength
- Immersion index
- Maximum theoretical relative density
- Bulk relative density
- Binder content
- Moisture in asphalt
- Bitumen testing
soils & Gravels
Soil or gravel testing assists with the evaluation of soil properties to engineering requirements in terms of bearing capacity, material durability and robustness. Every sample submitted for testing goes through a unique registration process captured in our computer database system before it is processed through our different divisions. All samples are prepared before tests are conducted and dependent on the type of test required, the sample will migrate through a variety ofprocesses. The following basic testing is available from our laboratory: - CBR (California Bearing Ratio) - UCS (Unconfined Compressive Strengths) - MDD and OMC (Maximum Dry Density and Optimum Moisture Content) - Road indicators (Sieve analysis and Atterberg limits) - Nuclear density tests - Permeability - DCP Testing (Dynamic Cane Penetrometer) - Compaction testing on site (nuclear method or sand replacement)
