Hydro-Flo Pavers and Permeable Concrete at the Gilroy Library

The bold colors of B4 Textured Estates create an excellent focal piece

Hydro-Flo Technology Pavers have now been installed at the Gilroy Library for months. In addition to beautifying the landscape, they were installed as a functional tool. Designed to take 3 inches of water per hour, Hydro-Flo pavers are proving themselves to be more slip-resistant and a better environmental alternative.


Hydro-Flo Pavers thrive where normal concrete fails

Take a look and see how puddling can occur on the surface of normal concrete. We've all seen and experienced this. Imagine not having to dodge puddles to get anywhere after a rainstorm! That makes Hydro-Flo an improvement even on natural surfaces!



Permeable concrete also helps keep water off surface

There are alternatives out there. For instance, the library also decided to use permeable concrete for the parking area. The regular concrete still had some puddling on it, while the permeable concrete does not. It has served that purpose very well.



Close-up of "permeable" concrete

I would like to address some of the differences between permeable concrete and Hydro-Flo Pavers. As you can see, "permeable" concrete depends on holes for its permeability. As such, the permeability can be reduced by dirt, leaves and debris collecting in the open spaces. This fault makes you choose between constant maintenance and a clogged system.

Bits of permeable concrete aggregate have broken off

Also, upon arriving, it was clear to me that the concrete was disintegrating. Because permeable concrete is more loosely held together with cement, some of the bits and pieces were breaking apart under the pressure from cars. Now in this application, Hydro-Flo Technology was not used in the parking area, so there is no direct comparison. However, all of Pacific Interlock Pavingstone's pavers (including Hydro-Flo) must meet ASTM and ICPI standards for strength and durability, even under freezing conditions!


In the above picture, there are four options of surfaces. One is the natural planting area. They can look great, and act as great places to keep water on-site. However, they cannot be driven on or walked on after rain (at least for those who don't want to be covered in mud!). Regular concrete is another option. It has proved its usefulness time and time again, though it just isn't permeable. It matches the old mindset of getting the water somewhere else as fast as possible. Permeable concrete has already been discussed, but can be a viable solution. The last option is Hydro-Flo Technology by Pacific Interlock Pavingstone. This offers the strength of concrete, with the permeability of "permeable" concrete, and it mimics a more natural infiltration system. It offers many other benefits as well, but the one I want to mention is the design possibilities! It can come in nearly any color and many shapes and sizes. This option is the icing to the cake for architects and designers. Not only do you have a functional product, but you do not have to sacrifice style to do it.