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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Air Content

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Air content test for air-entrained concrete.
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Pull Out Test

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

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Measures density of steel, polypropylene, or glass fibers by washing and weighing sample.
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Flexural Strength of Concrete Beams

Site Test
Flexural strength tested through application of load through upper and lower roller.
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Young's Modulus

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

Chloride Migration

Lab Test
Site Test
This procedure determines the chloride migration using non-steady-state experiments.
Concrete

Water Permeability

Site Test
Measures water penetration depth under pressure in concrete samples.
Concrete

Slump / Flow / L Box

Site Test
Tests include slump, flow table, degree of compactability, setting time, and air content.
Concrete

Compressive Strength - Cylinders

Lab Test
Site Test
Cores are taken and tested to assess concrete strength.
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Compressive Strength - Cubes

Lab Test
Evaluates concrete’s load-bearing capacity, ensuring compliance with construction standards and structural integrity.
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Site 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