Abstract This paper quantitatively explores the regulatory effects of rice husk ash content. polypropylene fiber. and steel fiber volume fractions on the mechanical properties of hybrid Fiber reinforced concrete (HFRC) through a series of orthogonal design experiments. Using the Split Hopkinson Pressure Bar (SHPB) technique. https://www.spidertattooz.com/OPI-GelColor-The-Color-That-Keeps-On-Giving-0-5-oz-HPJ07-p22791/