I would like to check, I would like to ask C. C20 with more than how to check, there are mortar M5 cement, mixed mortar how to check, the need for any material.
Similarly, cement and sand are also required to be tested
Mortar is mainly sent to the cement and sand; and then to the test unit to fill the next order, indicating the design strength and consistency there are structural parts; if you have added mortar or admixture and the like, to refer to the added material certificate above The best proportion to add, the general inspection when the inspection unit will require a copy of a certificate
Concrete with the ratio of the required materials are cement, sand, gravel, the amount of words can be consulted before the inspection unit is the most secure, generally need to be half sacks such as; and these materials also need to pass the test, need to fill in the inspection Of the information there are slump, structural parts, and design strength, the other is no special place, mainly according to the requirements of the drawings; specific consult the detection unit
