Luffa fibers and gamma radiation as improvement tools of polymer concrete

摘要: Abstract This work presents a study on the effects of luffa fibers and gamma radiation as tools for mechanical improvement polymer concrete based polyester resin/foundry sand mixture. Different concentrations irradiated non-irradiated (0.3, 0.6 0.9 wt%) higher irradiation doses were used. The results show that compressive strength flexural values decrease gradually when increasing irradiated-fiber concentration, respect to plain (without non-irradiated). Conversely an opposite effect occurs is irradiated, i.e. both degree polymerization cross-linking polymeric resin are increasing. Moreover, strain well dynamic elasticity modulus increase concentration. highest bending deformation obtained with 0.9 wt% 100 kGy dose.