Belem, T, Peyronnard, O & Benzaazoua, M 2010, 'A model of formulation of blended binders for use in cemented mine backfills', in R Jewell & AB Fourie (eds), Mine Waste 2010: Proceedings of the First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste, Australian Centre for Geomechanics, Perth, pp. 433-447, https://doi.org/10.36487/ACG_rep/1008_36_Belem (https://papers.acg.uwa.edu.au/p/1008_36_Belem/) Abstract: In this paper, a model has been proposed for determining the relative chemical reactivity of blended binders for use cemented mine backfills. This model can be used for rational formulation of blended binder by using a concept of ‘corresponding reactivity’ based on a reference blended binder. The implementation of the proposed model will help reducing the number of batch to be prepared during the optimisation of mix recipes.