SSC Exam > SSC Questions > Rapid hardening Portland cement possesses:a)...
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Rapid hardening Portland cement possesses:
- a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cement
- b)Less (C3S) and more (C2S)than ordinary Portland cement
- c)More (C3S)and less (C2S)than ordinary Portland cement
- d)High percentage of (C3A) ordinary Portland cement
Correct answer is option 'C'. Can you explain this answer?
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Rapid hardening Portland cement possesses:a)Low percentage of (C3A)a...
Rapid hardening Portland cement is similar to ordinary Portland cement except that it is ground finer, possesses more (C3S), and less (C2S) than ordinary Portland cement.
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Hence the correct answer is option C.
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Rapid hardening Portland cement possesses:a)Low percentage of (C3A)a...
The answer to the question is option 'C': Rapid hardening Portland cement possesses more (C3S) and less (C2S) than ordinary Portland cement.
Explanation:
Rapid hardening Portland cement (RHPC) is a type of cement that is specially designed to gain strength faster than ordinary Portland cement (OPC). RHPC is commonly used in construction projects where early strength gain is required.
The composition of RHPC differs from OPC, and the key difference lies in the percentages of the main chemical compounds present in the cement, namely tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and tetracalcium alumino ferrite (C4AF).
Here's a breakdown of the composition of RHPC and OPC:
Rapid Hardening Portland Cement (RHPC):
- Low percentage of tricalcium aluminate (C3A)
- More tricalcium silicate (C3S) than OPC
- Less dicalcium silicate (C2S) than OPC
Ordinary Portland Cement (OPC):
- High percentage of tricalcium aluminate (C3A)
- More dicalcium silicate (C2S) than RHPC
- Less tricalcium silicate (C3S) than RHPC
Reasoning:
Tricalcium silicate (C3S) is the main compound responsible for the early strength gain in cement. It hydrates and hardens rapidly, contributing to the early strength development of the concrete. Rapid hardening Portland cement contains a higher percentage of C3S compared to ordinary Portland cement, which results in faster strength gain.
Dicalcium silicate (C2S), on the other hand, hydrates and hardens at a slower rate than C3S. By having a lower percentage of C2S in RHPC, the cement can achieve faster setting and hardening, leading to early strength development.
Tricalcium aluminate (C3A) is responsible for the initial setting time of cement and can cause flash setting if present in high amounts. RHPC contains a low percentage of C3A to prevent rapid setting and allow for a reasonable working time.
In summary, rapid hardening Portland cement possesses more tricalcium silicate (C3S) and less dicalcium silicate (C2S) than ordinary Portland cement. This composition allows for faster strength gain and early hardening of the cement.
Explanation:
Rapid hardening Portland cement (RHPC) is a type of cement that is specially designed to gain strength faster than ordinary Portland cement (OPC). RHPC is commonly used in construction projects where early strength gain is required.
The composition of RHPC differs from OPC, and the key difference lies in the percentages of the main chemical compounds present in the cement, namely tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and tetracalcium alumino ferrite (C4AF).
Here's a breakdown of the composition of RHPC and OPC:
Rapid Hardening Portland Cement (RHPC):
- Low percentage of tricalcium aluminate (C3A)
- More tricalcium silicate (C3S) than OPC
- Less dicalcium silicate (C2S) than OPC
Ordinary Portland Cement (OPC):
- High percentage of tricalcium aluminate (C3A)
- More dicalcium silicate (C2S) than RHPC
- Less tricalcium silicate (C3S) than RHPC
Reasoning:
Tricalcium silicate (C3S) is the main compound responsible for the early strength gain in cement. It hydrates and hardens rapidly, contributing to the early strength development of the concrete. Rapid hardening Portland cement contains a higher percentage of C3S compared to ordinary Portland cement, which results in faster strength gain.
Dicalcium silicate (C2S), on the other hand, hydrates and hardens at a slower rate than C3S. By having a lower percentage of C2S in RHPC, the cement can achieve faster setting and hardening, leading to early strength development.
Tricalcium aluminate (C3A) is responsible for the initial setting time of cement and can cause flash setting if present in high amounts. RHPC contains a low percentage of C3A to prevent rapid setting and allow for a reasonable working time.
In summary, rapid hardening Portland cement possesses more tricalcium silicate (C3S) and less dicalcium silicate (C2S) than ordinary Portland cement. This composition allows for faster strength gain and early hardening of the cement.
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Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer?
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Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer?.
Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
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ample number of questions to practice Rapid hardening Portland cement possesses:a)Low percentage of (C3A)and relative more (C2S) and less (C3S) than ordinary Portland cementb)Less (C3S) and more (C2S)than ordinary Portland cementc)More (C3S)and less (C2S)than ordinary Portland cementd)High percentage of (C3A) ordinary Portland cementCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice SSC tests.
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