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Determine the fineness modulus of the coarse aggregate for which sieve result is as shown below. Sample taken = 3000 g. Sieve size (mm) 80 40 20 16 10 4.75 2.36 1.18 0.6 0.3 0.15 Weight retained (g) 0 0 2622.50 349.25 28.25 0 0 0 0 0 0
What are mineral admixtures? Why are they generally used? List various mineral admixtures used with concrete.
In a mix design, the following results are obtained: Water = 185 kg, Fine Aggregate (FA) = 778 kg, and Coarse Aggregate (CA) = 1024 kg. If FA at site is found to contain 2% moisture and CA contains 1% moisture, determine the correct weight of Water, FA and CA.
What is meant by shrinkage of concrete? Briefly discuss various types of shrinkage taking place in concrete.
After designing concrete mix for first trial, how do you proceed to finalize the mix with further trial?
What do you understand by creep of concrete? Discuss the factors affecting creep of concrete.
Explain the basic principle on which rebound hammer works. What are its limitations?
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
BE Civil
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Official Gujarat Technological University (GTU) examination paper for Concrete Technology (Winter 2025, B.E. · Civil Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.
3150610 Concrete Technology
Official GTU PDF · Winter 2025
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