I recommend you to read the article of Dr. saeid Hesami which is titled "Effects of rice husk ash and fiber on mechanical properties of pervious concrete pavement". This paper has been published 2014 in the journal of "Construction and Building Materials". The aforementioned paper is the exact thing that you want.
Placing stainless steel beams or cables inside the concrete layer, can enhances the tensile strength and increasing the ductility of the concrete, but, compressive strength remains slightly affected.
I believe that you might want to consider tensile strength rather than compressive strength and a very cost effective method is using Barchip Synthetic fibre www.elastoplastic.com