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Abstract 3 Polymer concrete is an aggregate mixture that uses some type of epoxy binder to cure and harden into place. A polyester, vinyl ester, or normal epoxy mixture is often used, but polymer concrete can be made with many kinds of polymer resins that allow the concrete to be poured or troweled and then hardened. It cures through a chemical reaction with the polymer material. Like traditional concrete, it also has, sand and gravel or crushed stone as primary ingredients. Polymer concrete is not like traditional concrete, although it uses some of the same types of materials. It is also used for construction projects in the same manner, but the polymer compounds give the concrete several characteristics that tend to make it safer or more durable than regular concrete. Polymer concrete tends to be more expensive than the traditional version and is measured more specifically in terms of density and shrinkage. Textile reinforced concrete (TRC) materials have gained popularity as strengthening systems over the last two decades due to their light-weight, resistance to corrosion, resistance to high temperatures, high strength, and superior absorbed energy. A typical TRC composite consists of high-strength fibers made of carbon, basalt, or glass in the form of textile fabrics embedded in fine grained cementitous concrete or mortar. Due to some problems in this type of composite related to the bond behavior between textile and ceentecious matrix it was suggested to replace the cementecious matrix with polymer matrix due to its high bond characteristics. However the behavior of this type of composite under high loading rate conditions is still questionable. These repaired constructions are most probably to be subjected to dynamic loads however, these kinds of loads are difficult to study and simulate in lab. Hopkinson split pressure bar is a good test apparatus that can cover the range of dynamic loading that4 need to be studied with adequate accuracy because of the nature of its measuring system that element stress wave superposition opportunity. In this regard a study was conducted on this composite to investigate its behavior in high loading rate conditions. a dynamic punching shear and flexure tests were conducted using modified setup of SHPB. Specimens were prepared using two types of polymer matrix with, high and low strength, with different amounts of steel and fiber glass textile as reinforcement materials. A load displacement curves and energy absorbed were calculated and compared. It was found that adding two glass fibers layers to the high strength matrix makes the strength and absorbed energy reaches 117% in strength and 124% in energy absorbed in case of dynamic punching shear conditions. Also adding two fiber glass layers to the low strength matrix make the strength and the absorbed energy reach 115% in strength and 119% in absorbed energy in case of dynamic flexure conditions. Such improvements demonstrate the benefit of using the TRPC material as a construction material subjected to high loading rate conditions. |