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Shrinkage in concrete can be reduced by using-
- a)Low water-cement ratio
- b)Less cement in the concrete
- c)Proper concrete mix
- d)All the above
Correct answer is option 'D'. Can you explain this answer?
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Shrinkage in concrete can be reduced by using-a)Low water-cement rati...
Shrinkage can be reduced by using the maximum practical amount of aggregate in the mixture. The lowest water-to-cement ratio is important to avoid this type of shrinkage.
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Hence the option D is correct.
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Shrinkage in concrete can be reduced by using-a)Low water-cement rati...
Shrinkage in Concrete and its Reduction
Shrinkage is a common phenomenon observed in concrete, which refers to the reduction in volume that occurs after the concrete has hardened. It is primarily caused by the evaporation of water from the concrete mixture. Shrinkage can lead to cracking and distortion in the structure, compromising its durability and aesthetics. Therefore, it is essential to minimize shrinkage in concrete to ensure its long-term performance.
Factors Affecting Shrinkage in Concrete
Several factors influence the shrinkage of concrete, including:
- Water-Cement Ratio: The water-cement ratio is the ratio of the weight of water to the weight of cement in the concrete mixture. A low water-cement ratio means there is less water available for evaporation, resulting in reduced shrinkage. Therefore, using a low water-cement ratio helps in minimizing shrinkage in concrete.
- Cement Content: The amount of cement used in the concrete mixture also affects shrinkage. By using less cement, the overall drying shrinkage decreases, as there is less binding material available for drying and subsequent shrinkage.
- Concrete Mix Design: The proportioning of different constituents in the concrete mix has a significant impact on shrinkage. A proper concrete mix design considers factors such as the aggregate type, aggregate size, and the use of admixtures. Optimal proportions of these constituents can help reduce shrinkage in concrete.
Importance of Using All the Above Methods
The correct answer to the question is option 'D', which states that all the above methods are effective in reducing shrinkage in concrete. Each of these methods plays a crucial role in minimizing shrinkage, and their combined use provides the best results.
Using a low water-cement ratio reduces the amount of water available for evaporation, thus reducing shrinkage. Similarly, reducing the cement content decreases the overall drying shrinkage. A proper concrete mix design considers various factors to optimize the composition, resulting in reduced shrinkage.
By combining all these methods, the shrinkage in concrete can be significantly reduced. This leads to improved durability, enhanced structural integrity, and reduced maintenance costs in the long run. Therefore, it is essential to employ all the mentioned techniques to minimize shrinkage in concrete and ensure the longevity of the structure.
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Shrinkage in concrete can be reduced by using-a)Low water-cement ratiob)Less cement in the concretec)Proper concrete mixd)All the aboveCorrect answer is option 'D'. Can you explain this answer?
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Shrinkage in concrete can be reduced by using-a)Low water-cement ratiob)Less cement in the concretec)Proper concrete mixd)All the aboveCorrect answer is option 'D'. 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 Shrinkage in concrete can be reduced by using-a)Low water-cement ratiob)Less cement in the concretec)Proper concrete mixd)All the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Shrinkage in concrete can be reduced by using-a)Low water-cement ratiob)Less cement in the concretec)Proper concrete mixd)All the aboveCorrect answer is option 'D'. Can you explain this answer?.
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