Lab Test
Site Test
Standard(s): BS EN 12350-2, BS EN 12350-5, BS EN 12350-10
Slump / Flow / L Box

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.

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Concrete
UKAS Accredited
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Air Content

Air content test for air-entrained concrete.
BS EN 12350-7:2019
Concrete
Lab Test
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Pull Out Test

Evaluates the strength and security of fixings by applying tension to the desired load level.
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Polypropylene Fibres

Measures density of steel, polypropylene, or glass fibers by washing and weighing sample.
BS EN 14488-7 & BS EN 14721
Concrete
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Residual Flexural Tensile Strength (RFTS) of Concrete Beams

Flexural strength tested through application of load through upper and lower roller.
BS EN 12390‑5, BS EN 14651: 2005
Concrete
Lab Test

Young's Modulus

Young’s Modulus is a measure of a material’s stiffness, indicating how much it will deform under a given stress.
Concrete
UKAS Accredited
Lab Test
Site Test

Chloride Migration

This procedure determines the chloride migration using non-steady-state experiments.
NT BUILD 492.1999-11
Concrete
Site Test

Water Permeability

Measures water penetration depth under pressure in concrete samples.
EN 12390-8
Concrete, Fresh Concrete
UKAS Accredited
Lab Test
Site Test

Slump / Flow / L Box

Tests include slump, flow table, degree of compactability, setting time, and air content.
BS EN 12350-2, BS EN 12350-5, BS EN 12350-10
Concrete
Lab Test
Site Test

Compressive Strength - Cylinders

Cores are taken and tested to assess concrete strength.
BS EN 12504-1:2019
Concrete
UKAS Accredited
Lab Test

Compressive Strength - Cubes

Evaluates concrete’s load-bearing capacity, ensuring compliance with construction standards and structural integrity.
BS EN 12390-1:2021, BS EN 12390-2:2019, BS EN 12390-3:2019
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Site Test
Lab Test
Slump / Flow / L Box

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.

BS EN 12350-2, BS EN 12350-5, BS EN 12350-10