Question:
Ultimate strength of cement is influenced by
Ultimate strength of cement is influenced by
Show Hint
Remember the functions of cement compounds:
\[
\begin{array}{ll}
C_3S &\rightarrow \text{Early strength}
C_2S &\rightarrow \text{Ultimate strength}
C_3A &\rightarrow \text{Initial setting \& high heat}
C_4AF &\rightarrow \text{Colour and minor strength contribution}
\end{array}
\]
A simple mnemonic is:
\[
\boxed{\textbf{C}_3\textbf{S}=\textbf{S}oon,\qquad
\textbf{C}_2\textbf{S}=\textbf{S}low}
\]
where "Soon" denotes early strength and "Slow" denotes long-term strength.
Updated On: Jul 23, 2026
- Tricalcium silicate
- Dicalcium silicate
- Tricalcium aluminate
- Tetracalcium alumino-ferrite
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
The major compounds present in Ordinary Portland Cement (OPC) are:
\[ \begin{aligned} C_3S &:\ \text{Tricalcium Silicate} \\ C_2S &:\ \text{Dicalcium Silicate} \\ C_3A &:\ \text{Tricalcium Aluminate} \\ C_4AF &:\ \text{Tetracalcium Alumino-ferrite} \end{aligned} \]
Each compound contributes differently to the properties of cement.
Step 1: Understand the function of each compound.
- \(C_3S\): Responsible for early strength development.
- \(C_2S\): Responsible for ultimate (long-term) strength.
- \(C_3A\): Causes rapid setting and high heat of hydration.
- \(C_4AF\): Contributes little to strength and mainly influences the colour of cement.
Step 2: Identify the compound responsible for ultimate strength.
Since dicalcium silicate hydrates slowly, it contributes to the long-term (ultimate) strength of cement.
\[ \boxed{\text{Dicalcium silicate contributes to the ultimate strength of cement.}} \]
Answer:
\[ \boxed{(B)\ \text{Dicalcium Silicate}} \]
Was this answer helpful?
0
0
Top TS PGECET Civil Engineering Questions
- A man weighing \( W \) newtons entered a lift which moves with an acceleration of \( a \, \text{m/s}^2 \). When the lift is moving downward, the force exerted by the man on the floor of the lift is:
- The magnitude of the resultant of two equal forces each of magnitude \( F \) is \( \sqrt{2}F \). Then the angle between their line of action is:
- The equation of motion of a particle starting from rest along a straight line is \( x = t^3 - 3t^2 + 5 \). The ratio of the accelerations after 5 s and 3 s will be:
- A tennis player returns a ball by hitting it with a racket. If the force exerted by the racket on the ball is increased, then the impulse imparted to the ball:
- Radius of gyration is that distance which when squared and multiplied with total mass of the body gives
View More Questions
Top TS PGECET Construction Materials Questions
- Which statement best describes the role of carryover factors in the Moment Distribution Method?
- Wrought iron contains carbon up to
- Age of a tree may be ascertained by
- Which chemical process is responsible for the long-term strength gain of concrete?
- Which one of the following relates to determination of critical path in PERT?
View More Questions
Top TS PGECET Questions
- If \( P = \begin{pmatrix} 1 & 1 & 1 \\ 0 & 1 & 2 \\ 0 & 0 & 1 \end{pmatrix} \) is the modal matrix of \( A = \begin{pmatrix} 1 & 1 & 0 \\ 0 & 2 & 2 \\ 0 & 0 & 3 \end{pmatrix} \) then the sum of all the elements of \( P^{-1}AP \) is
- If the system of equations \( kx + y + z = k - 1 \), \( x + ky + z = k - 1 \), and \( x + y + kz = k - 1 \) has infinite solutions, then \( k \) is
- The value of the integral \( \int_C (2xy - x^2) \, dx + (x^2 + y^2) \, dy \) where \( C \) is the boundary of the region enclosed by \( y = x^2 \) and \( y^2 = x \), described in the positive sense, is
- Let \( f(x) = \log x \). The number \( C \) strictly between \( e^2 \) and \( e^3 \) such that its reciprocal is equal to \( \frac{f(e^3) - f(e^2)}{e^3 - e^2} \) is
- The solution of the differential equation \( (D^2 + 2)y = x^2 \) is
View More Questions