Elizondo-Martinez Eduardo Javier, Andres-Valeri Valerio Carlos, Rodriguez-Hernandez Jorge, Castro-Fresno Daniel
GITECO Research Group, Universidad de Cantabria, 39005 Santander, Spain.
Institute of Civil Engineering, Faculty of Engineering Sciences, Universidad Austral de Chile (UACh), Calle General Lagos, 2060 Valdivia, Chile.
Materials (Basel). 2019 Sep 23;12(19):3100. doi: 10.3390/ma12193100.
Although porous concrete pavement design methods are mainly focused on maintaining high permeability rates in order to improve their ability to manage stormwater runoff, the mixture strength is paramount for its durability and service life. This paper proposes a new mixture design method for porous concrete, named PCD (porous concrete design), derived from the ACI 522R-10 and ACI 211.3R-02 standards. The aim is to improve mechanical strength in porous concrete mixtures, while ensuring enough permeability for its use in urban roads. With PCD methodology it is possible to obtain mechanical strengths 30% higher than those produced with ACI methodologies, while maintaining permeability rates close to 2 cm/s, lower than those obtained with ACI methods but still enough to manage extreme storm events. Finally, with the analytical Hierarchy Process (AHP) multi-criteria decision-making methodology and also bearing in mind safety variables, the best porous concrete mixtures are the ones produced with PCD methodology.
尽管多孔混凝土路面设计方法主要侧重于保持高渗透率，以提高其管理雨水径流的能力，但混合料强度对其耐久性和使用寿命至关重要。本文提出了一种新的多孔混凝土混合料设计方法，称为PCD（多孔混凝土设计），它源自美国混凝土学会（ACI）522R - 10和ACI 211.3R - 02标准。目的是提高多孔混凝土混合料的机械强度，同时确保其在城市道路使用时有足够的渗透性。采用PCD方法，可获得比采用ACI方法生产的机械强度高30%的强度，同时保持渗透率接近2厘米/秒，虽低于采用ACI方法获得的渗透率，但仍足以应对极端暴雨事件。最后，通过层次分析法（AHP）多标准决策方法，并考虑到安全变量，最好的多孔混凝土混合料是采用PCD方法生产的混合料。
