ASTM C430-17 PDF Download

The ASTM C430-17 standard outlines the procedure for performing fineness tests on hydraulic cement using a sieve. The sieve used must have a circular metal frame of specified dimensions, which can be fitted with either stainless steel woven-wire sieve cloth or an electroformed forced nickel sieve sheet. It is important that both the nozzle and sieve are resistant to corrosion by water. The dimensions of the nozzle and the pressure gauge should also meet the specified requirements. Additionally, the standard covers calibration and cleaning procedures for the sieve.

In summary, this standard identifies the equipment and methods to be used for determining the fineness of hydraulic cement using a 45-µm (No. 325) sieve. It ensures that the sieve, nozzle, and pressure gauge are suitable for the test and describes the proper calibration and cleaning procedures. This standard is important in ensuring accurate and consistent measurements of cement fineness, which is a critical property in determining the quality and performance of hydraulic cement.