Our Testing Services

To evaluate the rheological (fluid) properties of fresh concrete, several tests are available, each suited to the consistency of the mix. These tests provide insights into the workability, flow, and setting characteristics of the concrete.

Common Tests for Fresh Concrete

1. Slump Test: The most widely used method for determining the workability and consistency of fresh concrete. The slump test measures the change in height when a cone-shaped mold is removed, indicating the concrete's flowability.
2. Degree of Compactability Test: Used for assessing the workability of stiff concrete. The test evaluates how easily the concrete can be compacted, indicating its ability to fill forms without excessive effort.
3. Flow Table Test: Used for flowing concrete, this test measures the ability of the concrete to spread on a flat surface, providing an indication of its fluidity and ease of handling.
4. Setting Time Test: Measures the time taken for fresh concrete to begin setting, helping determine when it can no longer be worked with or molded.
5. Air Content Test: Measures the amount of air entrained in the concrete mix, which affects its durability and resistance to freeze-thaw cycles.

Conclusion

Rheological testing of fresh concrete is essential for ensuring the mix meets the desired consistency and workability for the specific application, helping achieve optimal performance and durability in the final structure.