👉For normal concrete mixing:
💫Mixer Rotation Time (Drum Mixer)
⏺Minimum: 1.5 minutes
⏺Standard: 2–3 minutes after all materials are inside
⏺Maximum: No need to exceed 5 minutes (too long can cause segregation)
🏷If using a small site drum mixer:
⏺1 bag mix: 2–3 minutes
⏺½ bag mix: 1.5–2 minutes
🚧Important Notes
⏺Start the mixer first → add coarse aggregate + some water → then sand + cement → remaining water.
⏺Overmixing makes concrete harsh and may reduce strength.
⏺Undermixing gives weak, nonuniform concrete.
@etconp
💫Mixer Rotation Time (Drum Mixer)
⏺Minimum: 1.5 minutes
⏺Standard: 2–3 minutes after all materials are inside
⏺Maximum: No need to exceed 5 minutes (too long can cause segregation)
🏷If using a small site drum mixer:
⏺1 bag mix: 2–3 minutes
⏺½ bag mix: 1.5–2 minutes
🚧Important Notes
⏺Start the mixer first → add coarse aggregate + some water → then sand + cement → remaining water.
⏺Overmixing makes concrete harsh and may reduce strength.
⏺Undermixing gives weak, nonuniform concrete.
@etconp
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