Concrete Handling and Transporting Methods

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What is the primary advantage of non-agitating truck batching and mixing systems?

Ability to handle high-slump concrete
Flexibility in hauling distances
Faster concrete discharge rates
Lower equipment costs compared to agitator trucks (correct)

When can water be added to concrete at a jobsite?

Always, as long as the concrete is not yet set
Only if the specified slump is exceeded
If the concrete has already been remixed at least 30 times
If the w/c-ratio is not exceeded and the measured slump is less than specified (correct)

What is the main benefit of using pipelines for concrete transportation?

They can be used for both small and large-scale construction projects
They take up little space and can be readily extended (correct)
They are more cost-effective than using cranes
They can be used for both concrete and other building materials

What is a key consideration when using a pump for concrete transportation?

Maintaining a constant supply of freshly-mixed concrete (D) Signup and view all the answers

What is a key consideration when using agitator trucks for concrete transportation?

Scheduling deliveries to match job site organization (A) Signup and view all the answers

What is the main advantage of using a crane for concrete transportation?

It can reach high areas of the construction site (C) Signup and view all the answers

What is the primary use case for wheelbarrows and buggies in concrete handling?

Short, flat hauls on onsite concrete construction projects (D) Signup and view all the answers

What is a limitation of non-agitating truck batching and mixing systems?

Slump should be limited (D) Signup and view all the answers

What is a common type of mixer used for concrete batching?

All of the above (D) Signup and view all the answers

What is a key consideration when scheduling concrete transportation and handling operations?

Careful scheduling between trades and operations (B) Signup and view all the answers

What is a key benefit of agitator trucks in concrete transportation?

Ability to handle concrete for all uses (A) Signup and view all the answers

What is the purpose of a flexible hose at the end of a pump's rigid pipeline?

To facilitate the pouring of concrete into the formwork (B) Signup and view all the answers

What is the primary advantage of using belt conveyor for concrete transportation?

Ideal for jobsites with changing placing conditions (D) Signup and view all the answers

What should be considered when selecting a bucket for concrete transportation?

The size of the concrete batch and capacity of placing equipment (C) Signup and view all the answers

What is a common issue to watch for when using truck-mounted conveyors for concrete transportation?

End-discharge arrangements needed to prevent segregation and mortar on return belt (A) Signup and view all the answers

What is the primary advantage of using cranes and buckets for concrete transportation?

Can handle concrete, reinforcing steel, formwork, and sundry items (C) Signup and view all the answers

What is a safety consideration when using belt conveyor for concrete transportation in hot and windy weather?

Installing a belt cover to protect the conveyor (B) Signup and view all the answers

What type of equipment is suitable for work above ground level?

Cranes and buckets (C) Signup and view all the answers