How do you check quality of cement at site?

To check the quality of cement at the site, you can perform a few simple tests. First, check the packaging for any damage or moisture, which can affect quality. You can also conduct a "water test" by mixing a small amount of cement with water; good quality cement will form a thick paste without excessive water separation. Additionally, a simple "fineness test" can be done by sieving a sample through a standard mesh; quality cement should pass through easily without clumping.