PSI - Issue 11

Stefanie A. Campos et al. / Procedia Structural Integrity 11 (2018) 145–152 Stefanie A. Campos et al./ Structural Integrity Procedia 00 (2018) 000–000

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Fig. 2. Shape of the slag grains by AIMS equipment.

Fig. 3. (a) Chemical oxides composition of slag by XRF (b) Mineralogical analysis of slag by XRD.

The expansion of the slag was analyzed in three ways: by ABNT NBR 11582:2016, although there was no standardization for this application, by the method described by Machado (2000), where the specimens were molded on the needles of Le Chatelier, with the trace of 1:2.25 by mass of cement and slag and by the method of Standard 113 of the DNIT. Measurements of 1, 3, 7 and 14 days were recorded. In the method described by Machado (2000), expansion rates of 0.02% were obtained and for expansions of less than 0.10% at 16 days, the reactivity is non deleterious and the mitigation with the materials used is proven. In the hot and cold analysis using the Le Chatelier needles, it is observed that the expansibility obtained in the hot test was higher than that of the cold test, this is due