Screed analysis

Laboratory analysis

Manchester Building and testing Laboratories  offers a wide-ranging service of screed analysis from physical non destructive tests to chemical analysis of screed samples in our laboratories.

All tests are carried out with strict reference to the relevant British, European or ASTM standards

Screed Density and Void contents

Regardless of the mix proportions of the screed compaction throughout its depth is critical to its performance. samples submitted to our laboratories can be tested to the ASTM C 642 and related back to documented Standard Test Method for Density, Absorption, and Voids.

Screed mix proportions

Manchester building and Testing Laboratories can use chemical analysis to determine the mix proportions of the screed. This can be simply a sand and cement content in a traditional screed or more complex  analysis involving additives such as fibres or polymer modified screeds etc.

Sand and aggregate grading characteristics

Grading characteristics are critical to a screed if the sand (fine aggregate) is too fine and/or poorly graded then excess gauging water is needed which can then cause shrinkage, cracking, curling, loss of adhesion. In certain parts of the country this is a very real problem.

Site investigation of the screed

We can visually inspect the screed to document and investigate issues or check conformity to the relevant British or European Standards . Hollowness or debonding of the screed can be tested by experienced personnel using a metal tapping rod, cracks and problem areas can be assessed and their implications can be determined.

Our on-site testing team also have a scientific background so all tests and samples are taken with good laboratory practice in mind (no cross contamination, correct sample size and relevant sample location). Written notes are taken throughout with locations, descriptions and references being clearly marked with strict reference to all relevant British or European Standards. If litigation is then considered at a later date the testing procedure will stand the scrutiny of the courts.

Screed sampling

Laboratory analysis, Samples can be taken by our onsite testing team or sent directly to out laboratories, to find out more please click on the link to our screed laboratory analysis. Read more >

Chemical attack

We can also check for any chemical attack on the floors screed from outside contaminants such as.

See some of the more prestigious authorities,companies & organisations etc. we have carried out investigations for.Learn More
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Contact us by telephone or Email should you require any information or to see what we can do for you.Learn More