To assess if your screed is adequately compacted and determine the probable performance in use, the BRE screed tester can be used to perform ‘Drop tests’.
The screed is subjected to four repeat impact blows by dropping a weight vertically down a guide onto a hardened steel anvil in contact with the screed surface. The depth of the indentation from the resulting impact is measured. The tests can be in accordance with BS 8204-1, BS 1881:Part 201.
See our relative Screed testing services in action, including Humidity Tests, Drop testing and our Pull Off Tests:.
The sampling rates will depend on the size and use of the screed to be tested. The acceptance limits of the in situ crushing resistance test (drop test) will depend on the type of screed bonded and unbounded or floating and also the floor usage category and the floor covering thickness. To discuss your requirements please contact CoGri USA Ltd.
Levelling the guide and preparing to drop the weight.
Removing the anvil following four successive blows.
Measuring the depth of the indentation using the depth measuring device.
Please contact us if you have any questions about our flooring services.