Preliminary Study of Pervious Concrete on Pavement and Seawall

摘要

Climate change is a hugely important issue human being are facing. Sustainable development and green building can be one of the solutions to mitigate the impacts of climate change. Pervious concrete is one type of green material. Pervious concrete can keep the runoff of rainwater as a water resource, such that the environment can be preserved and heat island effects can be reduced. In general, pervious concrete is not only used on pavement but also employed in coastal structures, artificial fish reefs, and seawalls in Taiwan. This paper focused on studying the characteristics of applying the designed pervious concrete on pavement and seawall utility. The experimental results showed that the compression strength of the field specimen can be up to 275.7 kgf/cm~2, and as such, does exceed the specifications of normal concrete structure. The pervious concrete used in this study had the capacity to penetrate water, and the field permeability test for the simulated field site is 1100 ml/15 sec. As for the seawall made of the pervious concrete, the experimental results showed that the seawall does reduce the phenomena of wave run-up by comparing the seawall made of normal concrete specimens. Furthermore, it was shown that the surface temperature of the pervious concrete fluctuates quicker than normal concrete does. The preliminary results of this study are valuable and serve a useful reference for designing and constructing pervious concrete in the future.