Self-Compacting Concrete (SCC) is designed to:
Choose the correct answer
Resist freeze-thaw cycles
Flow under own weight, filling formwork and passing through reinforcement without any vibration
Achieve ultra-high early strength
Be mixed without water
Correct Answer
B. Flow under own weight, filling formwork and passing through reinforcement without any vibration
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SCC: flows under gravity, fills formwork, and passes through dense reinforcement without vibration. Uses: high powder content (cement + SCM), high dosage of PCE-type superplasticiser, VMA (viscosity modifying admixture). Tests: slump flow (≥600 mm), T500 (≤6 s), J-ring (≤50 mm difference), V-funnel. Higher cost but saves labour on vibration.
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