basic civil engineering

                                                      Tests for cement After manufacture the cement should be tested to assure its quality. Cement can be tested in the laboratory by using several methods and instruments but in the field when instruments are not available the qualities of cement can be tested by performing certain field tests. 1.   Field tests for cement Following four field tests may be carried out to ascertain roughly the quality of cement: (i)                   Colour (ii)                 Physical properties (iii)   ...