The GREENEST mix - Pervious Concrete can get GREENER

The Greenest Mix we have ever devised!
Guest post, written by David Liguori

I wanted to give you a quick update on one of the more significant developments we’ve achieved lately.
 
In our continuing quest to further improve the performance of pervious concrete we have developed an “ultra-green” mix design for which we have recently received test data. The mix contains only 245 lbs. of cement, vs. 5-600 lbs. for regular concrete, and 245 lbs. of  supplementary cementitious materials (scm). The scm consists of a combination of fly ash and slag, both industrial waste products.
 
We used this mix this past January on a 2,000 ft. long (by 10’ wide) driveway in Palo Alto(photo above) and 3 months ago on a 5,000 sqft. driveway in Los Altos Hills (photo below). They are both performing quite impressively. Absolutely no surface raveling, all of which typically takes place in the first month or two if it’s going to happen, water infiltration rates of 700-1,200” per hour and compressive strengths above 3,000 psi.
 
As I am sure you know the addition of the scm’s slows down the rate of early strength gains but ultimately results in higher overall strength. In the case of the ultra-green mix our 28 day numbers are in the  2,600 – 2,900 psi range and to our delight the recent 90 day test came in at an outstanding 3,520psi. These type of results and data continue to increase our confidence in pervious concrete as viable long term stormwater management solution.

If you would like more details, contact us here and we will get in touch!

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This is the video from the longest (and greenest) pervious concrete driveway in the world!

This residential driveway is the world's longest pervious concrete driveway measuring half a mile long! It was designed and installed by Bay Area Pervious Concrete. If you would like to know more about pervious concrete and how it can absorb the puddles in your driveway, visit us at http://www.bayareaperviousconcrete.com.

RC Ready Mix - Sample Slab with Decorative Pervious

We teamed up with RC Ready Mix to do a sample pour over in their yard, with their aggregate. They wanted to see how it went down, and we wanted to see how our mix design would work with their rocks.  Not only did the installation turn out REALLY WELL, but Rob Estrada was able to really show us all a few MORE possibilities for decorative pervious concrete!

The first question is always ‘how well does it drain?’ Check out the video below to watch the front end loader dump a bucketful of water on the slab!

We agree with the driver, thumbs up! A few days later, Rob went over there to try some designs to see how they could look.  We are well known for our Polished Pervious™, which you can see below, next to the Classic Pervious Concrete.

To get a closer look at the great texture, we took a close up. You can see the Polished Pervious Concrete ™, and then set into the pervious a pattern that was added well after the plastic was pulled up.

And here is where Rob really let loose!  As Rob added these layers of color and texture to the Pervious Concrete, you can see the window that RC Ready Mix installed when they were framing. That allows one to see the water going through the layers of the Pervious Concrete System.

Here is most of the slab - you can see the suns and the moon and the gorgeous colors that were used!

If you would like to see this in person, it will only be in the yard for a limited time. Contact us for more information.