Self Consolidating Pervious Concrete Pool Deck

So between being very busy at school and studying for my professional engineering exam, I haven't done much in the way of countertops. So to keep the blog from getting too stale, here is an interesting post from a job I worked on this summer. Slip and fall is a big concern both on icy pavement and wet pavement, especially kids running around pools. I got a project to develop a pervious concrete mix to put around a pool deck at a Holiday Inn. These pictures are from a test pour done this summer. The test is in the mechanical room so there are way too many pipes under the concrete than recommended.

This was a very special mix. It has a new internal curing admixture which helps flowability and doesn't require curing under plastic. The concrete was brought in by wheelbarrow and finished by hand.

It was knocked down with a 2x4 and finished with a mag float. The pervious has fibers in it so there shouldn't be any issues with cracking.

A nice consistent surface.

There were two placement with different colors. This is a week later after pouring a bottle of water on each. It went through pretty quick.

Long Overdue

After finishing the patio table for our party I got busy with other things and haven't done much with concrete around the house. I have been doing lots of other concrete work, so I thought I would post some pictures. I do lots of work with pervious concrete. Pervious concrete allows the water to pass through to reduce stormwater runoff.

Last month we placed some experimental pervious concrete on campus to look at a few different mixtures and curing methods. The sidewalk was a difficult location so we ended up using a bobcat.

This pervious was self-consolidating and I finished a good portion with a mag float.

The surface before finishing.
Normally we never use a bull float on pervious, but this mixture was special.

Putting a fresh joint in with a pizza cutter.

The completed section. Some of the tests included curing under plastic and leaving some open. The infiltration was between 100-250 in./hr which is acceptable in this location.