Discussion: Use of recycled and secondary aggregates in foamed concretes

摘要

The article on foamed concrete by Jones et al. (2012) is both interesting and timely. However, given the problems that have occurred with the use of incinerator bottom ash in foamed concrete, stronger caution should be given regarding its use. The UK Health and Safety Executive (HSE) updated its guidance in July 2010, making the following recommendations for incinerator bottom ash aggregate (IBAA) (HSE, 2010).