Review of Porous Vegetation Eco-concrete (PVEC) Technology: From Engineering Requirements to Material Design

Porous vegetation eco-concretes (PVEC) meet the initial growth needs of plants due to the fillers in pores containing soil and nutrients. The much higher permeability and biocompatibility than traditional compact concrete endow them as ecological material with wide applicability, and of course the performance requirements differ in different application scenarios. This review paper starts from the perspective of application requirements and delves into the relationship between material design and performance of PVEC, such as porosity, mechanical strength, alkalinity, durability, and plant growth performance. It gives a comprehensive understanding and the state-of-the-art research progress of PVEC, providing the guidance for future raw materials selection, structural design and application.