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Evaluation of early age cracking in rendering mortars with polypropylene fibers

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Academic year: 2019

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Table 1 - Physical and mechanical properties of polypropylene fiber  Statistical  parameters Specific  density (g/cm³)  Length (mm)  Diameter  (µm)  Tensile strength (MPa)  Elastic modulus (GPa)  Average  0.907  6.1  15  727  4.7  Standard Deviation  0.006
Table 3 presents the results of the bulk density and  the air content of the mortars studied
Figure 4 - Relationships of the dropping ball penetration and air content with the increase in fiber  content
Figure  4  also  shows the relationship between the  results of  the consistency and  fiber content
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