The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?
The most common admixture which is used to accelerate the initial set of concrete is______________?
The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is_______________?
Which of the following cements is suitable for use in massive concrete structures such as large dams ?
For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?
Gypsum consists of______________?
The normal consistency of ordinary Portland cement is about________________?
After storage, the strength of cement________________?
The slump recommended for mass concrete is about_______________?
Addition of pozzolana to ordinary Portland cement increases__________________?