Performance of Porous Pavement Containing Different Types of Pozzolans

Document Type: Original Article

Authors

1 Ph.D. Candidate in Structure, Department of Civil Engineering, University of Semnan, Semnan, Iran

2 department of civil engineering

3 MSc, Department of Civil Engineering, University of Garmsar, Garmsar, Iran

Abstract

The pervious concrete ( PC ) pavement was originally used in USA and England nearly 30 years ago. Technical and economic advantages of the pervious concrete ( PC ) pavement have drawn the attention of many researchers. In this paper, the effects of replacing cement with pozzolanic materials such as silica fume (SF), zeolite, fly ash (FA) and granulated blast furnace slag ( GBFS ) on the concrete characteristics was evaluated by conducting water absorption, compressive and tensile strength tests at the ages of 7 and 28 days. To conduct the strength tests, standard cylindrical and cubic specimens were prepared with respective size of 10 × 20 cm and 10 ×10 ×10 cm. Based on the results, application of SF and GBFS could improve the compressive and tensile strengths by 60 and 300%, respectively. Moreover, inclusion of zeolite, FA and GBFS enhanced the durability and stood in the front rank provided by the CEB-FIP standard.

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