Supplementary cementitious materials (limestone - crushed - washed to generic market for supplementary cementitious materials)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.10. The product supplementary cementitious materials (SCMs) are materials used to substitute clinker in cement production. SCMs do not usually have an elastic demand as they are mostly produced as by-products. Examples of SCMs are: fly ash by-product of coal-dired electricity and blast furnace slag by-product of iron and steel production. According to Scrivener et al. (2018) clay is the material that could supply an increased demand for SCMs. Scrivener et al. 2018. Calcined clay limestone cements (LC3). Cement and Concrete Research 114 49-56. https://doi.org/10.1016/j.cemconres.2017.08.017 The cut-off classification is allocatable product. The activity type is ordinary transforming activity. The reference product amount is 1.