Mix concrete, using a concrete mixer.

Mixing should include

• selecting PPE, materials, and tools
• using a concrete mixer to create a workable consistency
• adding correct proportions of sand, cement, water, and aggregate
• following manufacturer's instructions for mixing.

Process/Skill Questions:

• What are the relevant safety precautions/procedures to follow when mixing concrete in a concrete mixer?
• What are the ingredients in a concrete mix? How are they batched and mixed?
• What is the desired consistency for the finished product?