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In this work, we studied the pull-out behavior of glass, basalt, and carbon rovings embedded in fine-grain concrete and geopolymer. Smooth rovings from the bobbin and coated rovings extracted from the fabric were both studied. A matrix made of fine-grained concrete and geopolymer was used to determine the interaction between roving and matrix during pull-out. The use of these matrices provides an economical consumption of concrete used in building structures. In addition, the bonding effect between coated roving and matrix was also investigated. As a result, it was observed that the bonding strength in a matrix made of fine-grained concrete is higher than that of a geopolymer. Smooth roving exhibited a minimal bonding characteristic irrespective of the matrix. The best anchoring is achieved by the coated roving extracted from the fabric and the strength characteristics of the roving itself are not critical.

Comparison of pull-out behavior of glass, basalt, and carbon rovings embedded in fine-grain concrete and geopolymer