ID = 29 |
Title = Evaluation
of a Method for dealing with Humidity and Odour problems in Concrete Floors |
Abstract = One
proposed method of dealing retroactively with problems of odour and humidity
problems in concrete ceiling/floor structures involves removing the old
PVC floorcovering and the adhesive residues from the surface of the smoothing
compound (screed). The screed is then left exposed to the air for a certain
period (14 days) to allow substances (e.g. VOCs) in the screed and concrete
to disperse, after which a new PVC floorcovering is laid without adhesive
bonding. The field study showed that both the emission (µg/m²/
h) and concentration (ng/g) of VOCs in the screed layer were reduced by
about 50-90% during the fortnight's exposure to the air. However, subsequent
measurements made nine months after re-laying the floorcovering showed
that both the emission from the screed surface and the concentration of
VOC in the screed had risen to about the same level as before the work
was done and the questionnaire results did not indicate any improvement
as regards health after the work. |
Location = Indoor
Air`96 vol 4 ; 325-330 |
Reference type = Proceeding
(Conference) |
Author = Bornehag,C.G. |
Company or Institute
= |