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| Asphalt |
| Bituminous mixtures will also remain a primary material for road paving because their ability to withstand the compressive forces caused by traffic. Today’s increasing demand for higher performance from roads means that the testing of the road materials has to investigate not only the constituent mix, but also the performances characteristics. To help civil engineers in these endeavors.
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| Sand, Aggregate and Fillers |
| Since approximately three quarters of the volume of concrete is occupied by aggregates, it isn’t surprising that its quality is of prime importance. Not only may the aggregate limit the strength of concrete, but the aggregate properties also greatly affect the durability and structural performance of concrete.
Aggregate is relatively inexpensive, does not enter into complex chemical reactions with water, and has been customarily treated as an inert filler material. However, with the increasing awareness of the role played by aggregate, this concept is being challenged.
The important characteristics of aggregate which are significant in making concrete include porosity, grading or size distribution, moisture absorption, shape and surface texture, crushing strength, elastic modulus, and the type of deleterious substances present.
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| Cement, Lime, Plaster and Mortar |
| The quality of cement is vital for the production of good concrete, so the manufacture of cement requires stringent control. A number of tests are performed in the cement plant laboratory to ensure that it is of the desired quality and conforms to the requirements of the relevant national standards. The following are the most important tests conducted on cement, lime, plaster and mortar.
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| Concrete |
| One of the most commonly performed tests on concrete is the determination of the compressive strength of standard sized concrete cubes and/or cylinders, typically tested in accordance with ASTM C39 and AASHTO T22.
All frames can be paired with a flexural testing frame and with the turn of a valve, the pumping unit can operate with this flexural test machine and the system can perform both types of test without the need to change grips - switching between crushing concrete cylinders and prisms, and flexural strength determination of concrete beams is as simple as the turn of a valve.
The compressive strength determination is the final stage of concrete making process; We also offers equipment to determine other characteristics of concrete making process, namely Consistency, Workability, Mixing, Molding, Curing, Capping, Compaction, Sampling, Drying Shrinkage and Moisture Movement
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