ABSTRACT
Concrete has always been known as a good, dense (solid), and durable construction material. In recent years, however, it has been found that even less solid (“pervious,” as we call it) concrete can also be useful and durable and can contribute to sustainability in various ways. The purpose of this chapter is to introduce the reader to this new aspect of concrete and to the different benefits that can be derived and used to
7.1 Introduction .................................................................................................. 181 7.2 What Is Pervious Concrete? .......................................................................... 182 7.3 US Environmental Protection Agency and Pervious Concrete .................... 183 7.4 Characteristics and Design of Materials ....................................................... 184 7.5 Cementitious Materials ................................................................................. 184 7.6 Mixture Proportions ..................................................................................... 186 7.7 Properties of Pervious Concrete ................................................................... 186 7.8 Design ........................................................................................................... 188 7.9 Construction .................................................................................................. 188 7.10 Standards for Testing and Maintenance ....................................................... 190 7.11 Comparison of Conventional and Pervious Concrete ................................... 191 7.12 Applications .................................................................................................. 191 7.13 Sustainability ................................................................................................ 193 References .............................................................................................................. 194 Additional Reading ................................................................................................ 194 Appendix: Pore Structure of Pervious Concretes and Its Relationship to Performance ....................................................................................................... 195
A.1 Pore Sizes and Methods for Representation ......................................... 195 A.2 Specific Surface Area and Mean Free Spacing of Pores ...................... 198 A.3 Connectivity of the Pore Structure ....................................................... 198 A.4 Permeability and Its Relationship to Pore Structure ............................ 199 Appendix References ....................................................................................203
