**Rebeca Martínez-García 1,\*, P. Jagadesh 2, Fernando J. Fraile-Fernández 1, Julia M. Morán-del Pozo <sup>3</sup> and Andrés Juan-Valdés <sup>3</sup>**


Received: 18 November 2020; Accepted: 14 December 2020; Published: 16 December 2020

**Abstract:** This article presents an overview of the bibliographic picture of the design parameter's influence on the mix proportion of self-compacting concrete with recycled aggregate. Design parameters like water-cement ratio, water to paste ratio, and percentage of superplasticizers are considered in this review. Standardization and recent research on the usage of recycled aggregates in self-compacting concrete (SCC) exploit its significance in the construction sector. The usage of recycled aggregate not only resolves the negative impacts on the environment but also prevents the usage of natural resources. Furthermore, it is necessary to understand the recycled aggregate property's role in a mixed design and SCC properties. Design parameters are not only influenced by a mix design but also play a key role in SCC's fresh properties. Hence, in this overview, properties of SCC ingredients, calculation of design parameters in mix design, the effect of design parameters on fresh concrete properties, and the evolution of fresh concrete properties are studied.

**Keywords:** recycled aggregates; self-compacting concrete; design parameters; fresh concrete properties; mix design
