Influence of Design Parameters on Fresh Properties of Self-Compacting Concrete with Recycled Aggregate—A Review

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.

Impact of Design Parameters on the Ratio of Compressive to Split Tensile Strength of Self-Compacting Concrete with Recycled Aggregate

“…Apart from these proportions, several ingredients directly influence the properties of concrete also reported in the literature [42]. These proportions and percentage or mass of ingredients used for the mix are known as design parameters [40]. Without considering mixing conditions and environmental conditions, these design parameters have a greater impact on concrete properties.…”

“…There are so many parameters in determining the SCC properties, in which the influenced parameter is design parameters [40]. Most of the properties of concretes are determined by the proper proportion of ingredients used in the mix.…”

“…Most of the properties of concretes are determined by the proper proportion of ingredients used in the mix. If there is a slight variation in the proportion of ingredients used, there is a drastic variation in fresh and hardened properties being reported in literature [40]. Some of the proportion commonly used by researchers is water to cement ratio, water to binder ratio, coarse aggregate to fine aggregate ratio, total aggregate to cement ratio, water to solid ratio, etc., [41].…”

“…Most hardened properties of concrete depend on strength (compressive and split tensile strength) properties at any age. These mechanical properties mostly depend on the design parameters as discussed earlier [40]. Many researchers have reviewed SCC with recycled aggregate, which is available, but have not studied the effect of the design parameters (more than three parameters) on two strength parameters simultaneously.…”

Effect of Freeze–Thaw Cycles on Carbonation Behavior of Three Generations of Repeatedly Recycled Aggregate Concrete

“…The demand of NA results in overexploitation and shortage of NA resources, which greatly damages the ecological balance of aggregate-producing areas [1,2]. Utilizing these C&DWs as recycled aggregates to prepare the recycled aggregate concrete (RAC) is an effective and proven method to solve the environmental and resource crises and realize a circular economy in conventional concrete industries [3][4][5][6][7]. Many countries around the world including USA, China, and EU are gradually extending RAC to practical projects [8][9][10][11].…”