The primary test to assess the filling ability of Self-Compacting Concrete (SCC) is:
Choose the correct answer
Standard slump test
Slump flow test (target flow diameter 550-850 mm) using a standard slump cone
Vee-Bee test
Compaction factor test
Correct Answer
B. Slump flow test (target flow diameter 550-850 mm) using a standard slump cone
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SCC tests: (1) Slump flow: filling ability - target 550-850 mm diameter spread; (2) T50 time: viscosity < 2 s = low viscosity, > 5 s = high; (3) L-box: passing ability (H2/H1 > 0.8); (4) V-funnel: flow time < 25 s; (5) J-ring: blocking resistance (max 10 mm difference). SCC does not need vibration.
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