PSI - Issue 64

Sareh Akbarpoor et al. / Procedia Structural Integrity 64 (2024) 822–832 Sareh Akbarpoor/ Structural Integrity Procedia 00 (2019) 000 – 000

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2. Experimental program The experimental program focused on testing 150 mm concrete cubes. Two sets of specimens, each containing three samples, were tested, as detailed in Table 1. The investigation employed two different types of adhesives: epoxy adhesive (EA) and a newly developed cement-based adhesive (CBA), as provided in Table 2. The bond length remained constant at 100 mm across all specimens. Further details regarding the specimens can be found in Fig. 1.

Table 1. Specimen details Specimens’ labels

N° of Specimens

Adhesive

Bond length (mm)

CBA-S-100

3 3

Cement-based adhesive (CBA)

100 100

EA-100

Epoxy Adhesive (EA)

Table 2. Mechanical properties of materials Material Compressive strength (MPa)

Tensile strength (MPa)

Elastic modulus [GPa]

Flow test (mm)

Concrete

30

-

-

- -

CFRP CBA

-

3100 6.19

170

70.28

- -

117

Epoxy adhesive

-

30

-

Fig. 1. Pull-out specimens using developed cement-based adhesives.