Development of sustainable spray-lining technology for rehabilitation of damaged wastewater concrete pipes

Thousands of kilometers sewage pipelines suffer from severe bio-corrosion caused by prolonged exposure to highly aggressive environments. Over the past several decades, many approaches have been developed to reduce the risk of concrete bio-corrosion with variable degrees of success. Over the last 6 years at UBC, a novel cement-free corrosion-resistant coating material was developed to enhance pipes durability and service-life. The proposed project aims to develop sprayable MCC coating for repair and strengthening of corroded wastewater pipes.