Set concrete proves a drainage problem

摘要

London, like many of the world's largest cities and towns, is seeing major building works including some of the largest new-build, purpose-built accommodation developments to date. During the construction operations, machinery and equipment are often washed down after use to ensure they are in the best working order. Where such equipment has been used for the preparation, movement or installation of concrete this can cause problems for the drainage system as wash-down water makes its way off site into the local drainage network. Done over time, this can cause even newly laid drainage pipes to become laden with set concrete that has to be removed to ensure the long-term viability of the drainage system.