Concrete Slump

Definition

Concrete slump is the measurement of the consistency of fresh concrete before it sets up.

Purpose

The purpose of measuring concrete slump is to assess the workability and fluidity of the concrete mix, ensuring it meets the required specifications for placement and compaction.

Examples of Use

• During concrete batching, a slump test is performed to ensure the mix has the correct water content and workability for pouring.
• On construction sites, slump tests help verify that the delivered concrete mix will be easy to place and finish without segregation.
• In quality control, consistent slump measurements ensure uniformity across multiple batches of concrete.

Related Terms

• Slump Test: A test used to measure the slump of fresh concrete, typically involving a slump cone.
• Workability: The ease with which concrete can be mixed, placed, and finished.
• Consistency: The degree of fluidity or stiffness of fresh concrete.

Notes

A standard slump test involves filling a slump cone with concrete, removing the cone, and measuring the subsidence of the concrete. The desired slump value depends on the specific application and placement conditions.