Application of Fibre-Reinforced Polymer-Reinforced Concrete for Low-Level Radioactive Waste Disposal

Abstract

This paper provides an overview of current research into the use of fibre and polymer reinforcement of concretes for the application in the field of low-level nuclear waste containment. This research investigates the effects of the use of polymers and fibre reinforcement in ordinary Portland cement binder concretes to create polymer-cement concrete or polymer-modified concrete, in comparison with geo-polymer concrete with polymer reinforcement and fibre reinforcement. This is to gain further knowledge into the effects polymer addition has on concrete durability under radiation conditions. In this research, various mixtures are designed and tested in order to determine the most feasible mixtures for producing durable, robust and sound containers for low-level nuclear waste storage. Such containers will be used for storage as well as for transportation of nuclear waste and therefore must also eliminate leaching and also resist microcracking. Other considerations for a suitable mix include ease of casting and long-term durability. Testing involved will include evaluating the mixtures through compressive and flexural tests, analysis of crack development, permeability and waterproof properties as well as resistance to gamma ray penetration. An opinion on which material is most suitable for the production of such low-level radioactive waste storage containers will be offered as a conclusion to the research paper.