Initial setting time of cement lab manual

13 rows · Test Procedure for Initial and Final Setting Time of Cement Preparation of Test. 1. adding of water to the cement and filling of mould of Vicat apparatus is called as gauging time which should be between 3 to 5 minutes. For finding out initial setting time, final setting time, soundness of cement and compressive strength of cement, it is necessary to fix the quantity of water to be mixed in cement in each case. Initial setting time is regarded as the time elapsed between the moments that the water is added to the cement to the time that the paste starts losing its plasticity. The final setting time is the time elapsed between the moment the water is added to the cement, and the time when the paste has completely lost its plasticity and has attained sufficient firmness to resist certain www.doorway.ruted Reading Time: 16 mins.

Initial setting time is the time when the paste starts losing its plasticity. And setting time is the time required for stiffening of cement paste to a defined consistency. It is the time taken for the cement paste or cement concrete to harden sufficiently and attain the shape of the sculpt in which it is cast. adding of water to the cement and filling of mould of Vicat apparatus is called as gauging time which should be between 3 to 5 minutes. For finding out initial setting time, final setting time, soundness of cement and compressive strength of cement, it is necessary to fix the quantity of water to be mixed in cement in each case. The minimum initial setting time is 45 minutes and maximum final setting time is 10 hrs. As the Initial and Final setting time is coming in between the prescribed range, it means that the experiment is performed accurately. The requirements of temperature and humidity were not taken into account in the lab.

Determination of Initial Setting Time of Cement with Vicat's Apparatus (ASTM C Lab Exam. = 30%. LAB INSTRUCTIONS: The course instructor or lab. Initial and final setting times of Portland cement: B.S: 12 A.S.T.M: C The Civil Engineering Center 2Visit www.doorway.ru for more lab reports and. Study all the questions given in the laboratory manual and write the answers ordinary portland cement, the initial setting time should not be less than.