Effects of gamma radiation and the polypropylene fibers on compressive properties of polymer concrete composites (PC) were studied. The PCs had a composition of 30 wt% of unsaturated polyester resin and 70 wt% of marble particles which have three different sizes (small. medium. and large). https://www.chiggate.com/snickers-edible-cookie-dough-tub-with-spoon-online-now/