Development of Abrasion-Resistant Members using Room-Temperature Curing UFC

Abstract

The surfaces of concrete structures used in rivers sustain abrasion from water flow and the impact of waterborne debris such as gravel and rocks. We studied the application of ultra-high-strength fiber-reinforced concrete (UFC), which provides ultra-high strength and excellent long-term durability, to the creation of abrasion-resistant members. Abrasion tests were conducted using a steel rod-type abrasion tester to evaluate resistance to abrasion. To identify potential issues during actual construction, we conducted also simulated full-scale construction and obtained basic data on various aspects including manufacture, placement, surface finishing, and curing conditions. As a result, we confirmed that room-temperature curing UFC is suitable for the production of abrasion-resistant members.