Floor Screed Testing

Moisture test by calcium carbide method.

Floor screed testing.

The accurate prediction of drying times of standard screeds often being a difficult task moisture retention in screeds is a major problem that can disrupt moisture sensitive floor finishes. Bre drop hammer test. Manchester building testing laboratories offer both physical on site screed testing and laboratory chemical analysis of the floor screed. With the tensile pull off test according to en 13892 8 the tensile strength of the screed is determined.

Is the screed strong enough to install a wood floor. Heat screed now offer a screed bre test service also known as a drop hammer test using our own bre test equipment specific to our company and what we do this is a test for soundness of floor screed which can be affected by a number of variables including. As it is often difficult to predict the drying times accurately it is always important to carry out a reliable moisture assessment test prior to the installation of the final finish. Screeds can take many months to dry out and it is extremely important to determine the moisture content of a screed accurately prior to the application of further floor finishes.

To be able to accept a bonded wood floor the screed must have a tensile strength of 1 n mm 2 and for wood block parquet flooring 1 2 n mm 2. Poor compaction moisture content insufficient binder cement. Flexural test on concrete its significance procedures and applications. To identify strength of a screed or screed collapses to determine weakness.

The retention of excessive moisture in screeds is a major problem that affects the quality and longevity of floors. Moisture testing should be carried out after the commissioning of the ufh system but before any tiles are laid. Failure to determine that the screed has sufficiently dried prior to application of a damp proof membrane or a vinyl floor covering can lead to problems at a later stage. Lifting and replacing screed during the later stages can be expensive and time consuming.

Moisture testing is carried out using a suitable approved method such as a flooring hygrometer or carbide bomb test. How is it used. Moisture testing of the screed where floor tiling is proposed. We test all types of screed from traditional sand and cement screeds proprietary screeds anhydrite calcium sulphate screeds polymer modified screeds and resin screeds.

With the increasing number of screed failures in theuk contractors are now taking every step to ensure the quality of their screed meets the expected quality standards.