[ASME 2018 26th International Conference on Nuclear Engineering - London, England (Sunday 22 July 2018)] Volume 1: Operations and Maintenance, Engineering, Modifications, Life Extension, Life Cycle, and Balance of Plant; Instrumentation and Control (I&C) and Influence of Human Factors; Innovative Nuclear Power Plant Design and SMRs - We Never Built Small Modular Reactors (SMRs), but What Do We Know About Modularization in Construction?