If the initial setting time of cement is 10 minutes, it can be classified as -
-
A.
Quick setting cement
-
B.
Sulphate resisting cement
-
C.
Rapid hardening cement
-
D.
Low heat cement
Correct Answer:
A. Quick setting cement
Explanation:
Quick-setting cement is specifically designed for applications where a rapid transition from a plastic to a solid state is necessary, such as in underwater construction or emergency repairs. While standard Ordinary Portland Cement (OPC) typically has an initial setting time of at least 30 to 45 minutes, quick-setting cement is formulated to begin hardening much sooner, often within 5 to 10 minutes. This rapid set is achieved by reducing the gypsum content during manufacturing and adding accelerators like aluminum sulfate, which speed up the hydration process. Because the 10-minute setting time described in the query falls within this accelerated range, the cement is classified as quick-setting.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.