PSI - Issue 11

J.H.A. Rocha et al. / Procedia Structural Integrity 11 (2018) 107–113

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J.H.A. Rocha et a

l. / Structural In

tegrity Procedia

00 (2018) 000–

000

Fig. 3. Location

of subject areas .

3. A 3.1. P spo to w

nalysis and Pathological athological m ts on the wall ater infiltrati

discussion of manifestatio anifestations and window on (Henriques

results

ns

found durin , skirting lam 2007). On su

g visual inspe ination and co bject wall, in

ction of this ating cracks k detachment

building inc (Fig. 4), whic was mainly o

lude: crypto-f h are commo bserved as sh

luorescence, n problems r own in Fig. 3

water elated .

Fig. 4.

Problems found

: (a) Efflorescenc

e, (b) water stain

on the wall and

(c) coating detac

hment at the wal

l bottom.

Infrared The ig. 5 shows a tive humidity es of ambien ect points inc est value. How of the enviro or a better o mal contrast 0 AM and 2: :00 PM, as i cient detection mograms sho

rmography temperature recorded. It t temperature rease until th ever, this be nment, decrea bservation of between poin 00 PM, when n the first mo of these are wn, purple ar etachment is and not just t

3.2.

F

evolution in p can be observ are present, a ey reach the havior is reve se as the rela temperature ts P1 and P2 affected area rning hours ( as, as shown eas correspon present in Fi he detached p

oints P1 and ed that durin ccording to p maximum va rsed in the af tive humidity difference be during test t s are clearly 8:00 AM), sm in Fig. 7b, thu d to low temp g. 3, the therm art.

P2 during tes g the first m oints P1 and lues at noon ternoon, whe increases. tween the dr ime. It is ob detected (Fig all gradients s representin eratures and ogram in Fig

t time, in add orning hours, P2; but as day , contrary to r n temperature y area and th served that th . 7a). Howeve , 0.1 ° C are g inadequate yellow areas c . 7a shows th

ition to ambie high relative progresses, t elative humid s of points P1 e affected ar e highest val r, values do n present, whic periods of ano orrespond to at the affecte

nt temperatur humidity an emperatures ity with the and P2, as w ea, Fig. 6 sho ues occur be ot exceed 0, h do not allo maly detecti high tempera d area involv

e and d low of the day’s ell as ws a tween 6 ° C. w for on. In tures. es the

rela valu subj low that ther 10:0 At 3 effi ther F

W hile an ink d le lower area

who