operation to carry out RIGOROUS quality assurance testing on all its products. The routine tests are conducted in accordance with SANS standards.

The Lafarge laboratories also provide an unequalled service to customers who may need assistance to comply with any other established standards or with problem SOLVING. Successful testing requires good sampling procedures. These are outlined below:

Sampling concrete from a Readymix truck (SANS Method 861-2:2004)

Purpose - To lay down a procedure to achieve consistent representative samples. If the sampling is not done correctly, the TEST results will be incorrect and invalid.

Equipment - Corrosion resistant metal scope, Shovel and wheelbarrow or other suitable container

Procedure:

• Take the samples from the stream of concrete being discharged from the truck's mixing drum. Do not sample the first and last 10% percent of the load
• Hold the sampling scoop as CLOSE to the DISCHARGE point as possible. The concrete should not be allowed to freefall more than 500mm
• Take at least nine samples at equally spaced intervals during the discharge
• Mix the nine samples to ensure the overall sample is uniform

operation to carry out rigorous quality assurance testing on all its products. The routine tests are conducted in accordance with SANS standards.

The Lafarge laboratories also provide an unequalled service to customers who may need assistance to comply with any other established standards or with problem solving. Successful testing requires good sampling procedures. These are outlined below:

Sampling concrete from a Readymix truck (SANS Method 861-2:2004)

Purpose - To lay down a procedure to achieve consistent representative samples. If the sampling is not done correctly, the test results will be incorrect and invalid.

Equipment - Corrosion resistant metal scope, Shovel and wheelbarrow or other suitable container

Procedure: