NCRT offers civil material testing services with major motive to take care of all clients by providing accurate test results in a timely manner. NCRT testing centre is well-equipped with cutting-edge high-tech testing equipment.
As buildings are built by different kind of construction material which include bricks, cement, various chemical constitutes, sand, aggregate, advanced concrete etc. to check the quality and strength of construction material various tests were performed. The material is tested according to the Standard procedures established by BIS to check the exact strength of the material. The major reason behind testing the construction material is to check following points
In general, cement refers to any adhesive substance, but in a narrower sense, it refers to the binding materials used in building and civil engineering construction. To check the quality of the cement following tests are conducted
Compressive strength is a material's or structure's ability to resist or withstand compression. Compressive strength refers to a material's capacity to tolerate failure in the form of cracks and fissures.
Compressive strength test is performed by applying the force on both side of the sample prepared by the cement; it tests how maximum compression is bear without any failure. The capacity of a cement specimen to withstand compressive stress after 28 days of testing on a Compressive Testing Machine [CTM].
Cement's soundness refers to its capacity to hold its volume once it has hardened. That is, when the cement has dried, the volume change should be minimal. Soundness of the cement is calculated by following two methods
Initial setting of cement means the time taken by fresh mixed concrete or mortar to get harden and the completion of harden state is called the setting time of cement. This test helps to find out the cement’s setting time ability to withstand the requirement of the construction.
Cement consistency test helps to identify the minimum requirement of the water when chemical reaction is started between the water and cement or to find out the quality of the water required to make the paste of the cement.
Cement fineness is a measurement of cement particle size expressed in terms of the cement's specific surface area. The weight of cement particles larger than 90 microns is computed, as well as the proportion of cement particles retained. This is all known as the cement fineness.
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