Effect of Superplasticizer on Characteristics of Pervious Concrete

Abstract

Pervious concrete is a promising ecological methodology. It is open graded in nature as it has zero to minimal fine aggregate, making it stiff and difficult to work with. Due to the open-graded matrix, this concrete has a high void ratio and has emerged as a sustainable solution to reduce surface runoffs. This paper investigated pervious concrete behavior with a water-cement ratio between 0.25 and 0.3 and a superplasticizer dosage of 0–2%. Various mix proportions were prepared, keeping a constant air void and aggregate cement ratio. Mechanical properties of fresh and hardened concrete such as slump, density, flexural strength, and fracture toughness were measured. Corresponding graphs of mechanical properties with water-cement ratio and superplasticizer % variations are obtained. The results show that with increasing the dosage of SP, the properties of PC get improved. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.