MATERIAL TESTING
Soil & Rocks
Soil and rock samples are obtained from the site subsurface by several means. The samples are transported to laboratory by the appropriate means and stored in the designated samples storage. They are logged out in the log register and issued controlled numbers for traceability. Tests on soil and rock samples are carried out in accordance to national and international standards (AASHTO, ASTM, BS, and/or SAC & MRDTM procedures. Field testing is also performed on the soil as per project demand like, field compaction, CBR, plate load test and geotechnical investigation.
Aggregates
Aggregates are raw materials that are produced from natural sources and extracted from pits and quarries, including gravel, crushed stone, and sand. When used with a binding medium, like water, cement, and asphalt, they are used to form compound materials, such as asphalt concrete and Portland cement concrete. Not only are aggregates the building blocks of our society, they are also prevalent in our daily lives. We would not have glass and plastic without sand, or pennies without zinc. Quartz gives us the silica for computer parts, limestone gives us the calcium carbonate for antacids. Aggregates are also used in the water filtration and purification process, as well as air filtration and purification.
Concrete & Cement
We provide an extensive range of testing on concrete and other cement products efficiently. Our laboratory is approved and/or inspected by SAC/ISO17025 (Cement and Concrete testing Laboratory). Our employees are approved from ACI. We work closely with ASTM in the development of test methods, testing guidelines and specifications for all types of cement and cement products (Concrete, blocks, interlocks, kerbstones, etc).
Asphalt Mixtures
As the most important material for pavement construction, asphalt has always been valued. In 1987, the US Congress established the Strategic Highway Research Program (SHRP) to improve the performance and durability of US highways. There are three methods for asphalt mix design, namely Marshall design method, Hveem design method, and Superpave design method. A new asphalt mixture design system, superior performance asphalt pavement (Superpave), has been developed by the Strategic Highway Research Program in the United States. Compared with Marshall design method, Superpave design method is a completely different asphalt mixture composition design system, which includes new test equipment, material selection and design, test standards, and so on. AlMumayaz provided wide range of filed and laboratory testing services on asphalt mixtures by all those aforementioned three methods.
Steel Testing Scope
Steel testing in civil engineering laboratories plays a critical role in ensuring the structural integrity and safety of construction materials. These tests evaluate the mechanical properties of steel, such as tensile strength, yield strength, elongation, and ductility, to verify compliance with design specifications and applicable standards. Standardized procedures, particularly those set by the American Society for Testing and Materials (ASTM), are followed to ensure consistency and reliability. Common ASTM standards include ASTM A370 for mechanical testing of steel products, ASTM E8/E8M for tension testing of metallic materials, and ASTM A615/A615M for deformed and plain carbon-steel bars used in concrete reinforcement. By adhering to these standards, Al-Mumayaz Laboratory provide essential data that informs material selection, quality control, and structural performance assessments in engineering projects.
Non-Destructive Testing
AML provides variety of non-destructive testing on the concrete and pavement structures some main techniques are enlisted below.
UPV
Ultrasonic Non-Destructive Testing is the process of transmitting high-frequency sound waves into a material in order to identify changes in the material’s properties.
Schmidt Hammer
A non-destructive technique used to determine the compressive strength, surface hardness and penetration resistance of reinforced concrete and masonry structures by measuring the rebound of a spring-loaded mass impacting against the surface of the sample.
DFT
Dry film thickness (DFT) is the thickness of a coating as measured above the substrate. This can consist of a single layer or multiple layers. DFT is measured for cured coatings (after the coating dries)
Core Specimens
A core specimen for the determination of compressive strength shall have a diameter at least three times the maximum nominal size of the coarse aggregate used in the concrete, and in no case shall the diameter of the specimen be less than twice the maximum nominal size of the coarse aggregate.