Question

What is the definition of superplasticizers?

1) High range water reducers that are added to concrete with a low-to-normal slump and water ratio to make high slump concrete.
2) High range water reducers that are added to concrete with a low-to-normal slump and water ratio to make lower slump concrete.
3) Low range water reducers that are added to concrete with a low-to-normal slump and water ratio to make high slump concrete.
4) Low range water reducers that are added to concrete with a low-to-normal slump and water ratio to make lower slump concrete.

Answer 1

Superplasticizers are high range water reducers added to concrete to increase its slump without additional water, essential for high-strength and high-performance concrete.

Step-by-step explanation:

Superplasticizers are defined as high range water reducers that are added to concrete with a low-to-normal slump and water ratio to produce a higher slump concrete. Essentially, they are chemical admixtures used to improve the workability of concrete, allowing it to flow more easily without the need for adding more water, which can weaken the concrete.

These superplasticizers are crucial in producing high-strength and high-performance concrete for modern construction where pourability and compaction without segregation are necessary.