EXPERIMENTAL STUDY TO PRODUCE MANHOLE COVER USING ULTRA-HIGH PERFORMANCE CONCRETE

Abstract

Ultra-High Performance Concrete (UHPC) has been increasingly widely applied in civil and infrastructure engineering because of its outstanding properties in strength and durability. In particular, the research and application of UHPC in structures requiring high load-bearing capacity and high impact resistance, such as manhole covers, will have great practical significance. This paper presents experimental results of some properties of UHPC and uses the finite element method (FEM) to analyze and design two types of UHPC manhole covers according to the requirements for BS EN 124 classes A15 and B125. The research results show that the UHPC manhole covers need only 30 mm thickness without steel bar can ensure class A15.However, to meet the requirements of class B125,the UHPC manhole covers with a thickness of 60 mmneed a steel mesh of diameter size 10 mm reinforcement. The test results prove that the load-bearing capacity of the UHPC manhole covers from the experiments is consistent with the theory.