New Testing Procedure for Shrinkage Cracking of Fiber-Reinforced Shotcrete

Plain shotcrete and fiber-reinforced shotcrete (FRS) are commonly employed to produce layers or linings with large surface/volume ratios. Restrained shrinkage cracking is hence an important concern from both structural and durability aspects. In this investigation, a new testing procedure is adopted to study the shrinkage cracking behavior for plain shotcrete and four different types of FRS (polypropylene, steel, polyvinylalcohol, and hybrid)....