PSI - Issue 11

J.H.A. Rocha et al. / Procedia Structural Integrity 11 (2018) 99–106 Author name / Structural Integrity Procedia 00 (2018) 000 – 000

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subject wall. Then the tape temperature was measured and the emissivity was adjusted in the equipment until the wall temperature, without the tape, obtained the same reference temperature, thus reaching emissivity of the object studied. In order to assist with E-60 camera data processing and thermograms, FLIR Tools software was used. In order to analyze results, the following equation (1) was used. 2 1 T SP SP  = − (1) SP1 = Dry area temperature (° C) SP2 = Moist area temperature (° C) "SP1" and "SP2" were the spots studied in dry and humid areas, respectively. As the thermograms were taken every hour, those areas were the same in each case. 3. Analysis and discussion of results Where: ∆ T = Temperature difference between dry area and wet area (° C)

3.1. Pathological manifestations

Some pathological manifestations such as cracks and moisture spots were found on the wall chosen for this investigation. Mold formation is perceived in an embryonic form due to the fact that this construction is relatively new. Fig. 4 shows an opening caused by removal of plastic placed (red arrows), in addition to mortar delamination in the lower part of the wall, thus leaving the region susceptible to rainwater entry. A crack was also observed in the lower corner of the opening caused by the absence of a window trim (Bauer 2008).

Fig. 4. Opening caused by plastic removal and crack due to missing trim.

Internally, the wall is covered with plasterboard mortar, plaster, and lime paint. However, it is externally composed of the plasterboard mortar, except for one side of the window that has no coating due to an adjustment (original project involved grid placement). Careless window placement as well as missing trim was observed (Fig. 5).

Fig. 5. Lack of coating and trim.