Another use for Cellular Concrete
Here is a news release about use of cellular concrete in bridge construction. The arches are precast standard density concrete, with an overfill (presumably up to the deck) of cellular concrete. Read the whole story by following the link. Cellular concrete in bridge construction
richb
Mon, 28 Jun 2010 13:04:38 -0500
What dogs know about life
Here are some secrets of contented living that most dogs follow.
- Never pass up the chance to go for a ride.
- Allow the experience of fresh air and the wind in your face to be pure ecstasy.
- Always greet loved ones with enthusiasm, even if they have only been gone five minutes.
- When it's in your best interest, practice obedience.
- Carve out your niche and let others know when they've invaded your territory.
- Take frequent naps and take time to stretch before rising.
- Run, romp and play daily.
- Eat with gusto and enthusiasm!
- Be loyal, no matter what.
- Never pretend to be something you're not.
- If what you want lies buried, dig until you find it.
- When someone is having a bad day, be silent, sit close by and nuzzle them gently now and then.
- Thrive on attention and let people touch you.
- Avoid biting when a simple growl will send the message.
- On hot days, drink lots of water and sleep under a shady tree.
- When you're happy, dance around and wag your entire body.
- No matter how often you're scolded, don't buy into the guilt thing and pout...run right back and make friends.
- Delight in the simple joy of a long rambling walk.
richb
Tue, 15 Jun 2010 09:10:45 -0500
Demo Day Report
This week was another demo week for the CreteFoamer
Here's a photo of the driveway pour which was completed on Wednesday June 9. It was our intent to do a cellular concrete sub-base under the whole driveway, but city regulators would not permit that. They required the standard compacted fill under all the driveway that was on the right-of-way. On the rest, we used a 3" cellular sub-base (25 pcf) and a reduced density top cap (115 pcf - 5.5 inches thick)
Compaction of the cellular sub-base was not required! There was a materials cost savings, while still getting 3500 psi strength. The "garage end" load had about 7% air because we forgot to tell our producer "no air entrainment" when we ordered, so our density was lower than we intended. If we had chosen to check mix density before adding foam, we would have caught the error. As you can see in the photo, we used wire mesh for the whole driveway. City regulations required that the ROW portion was an Iowa DOT spec mix with no foam added and 800 lbs/Portland per yard. Normal 28 day strength for that mix is about 6500 psi. We used the same mix for the "garage end" load, but added the foam. We will finish the control joints and get a final inspection when it quits raining in "our neck of the woods" as many TV weather personalities, including Al Roker, seem fond of saying.
Here is a link to a 1999 article found on IrishConcrete.ie about Cellular Concrete for Road Construction.
IrishConcrete
I was just alerted to this video by Google Alerts. There are two quick images of buildings in Haiti which were not destroyed by the earthquake.
We are in current discussions with two groups who are rebuilding Haiti.
Facebook video --CLICK HERE - Cellular Concrete in Haiti
richb
Thu, 10 Jun 2010 13:01:22 -0500
CreteFoamer R&D Facility
Some of our staff members at Richway have been working on the new 4,000 sq ft R&D facility, which will be located on the south end of our polymers building. As Richway has grown into the current 55,000 sq ft factory, so has the need for a larger R&D facility. Here is a picture of the old R&D, along with two current photos of the progress on the new R&D.
A view into the new R&D from the overhead door
A view from the office in the new R&D
jasonb
Mon, 17 May 2010 16:37:00 -0500
More cellular concrete success stories
Here is a short story about hillside soil stabilization using cellular concrete (aka foamed concrete).
Click on This: Soil "Stabilisation" in Poland
Note: 900 kg/m3 = about 56 pcf (divide kg/m3 by 16 to get approximate density in lbs/cubic foot)
Here is a story about void filling with cellular concrete.
Click here: Void Filling
The lead line notes that "Since foam concrete was first developed in America in 1923 ... ". Most of the time credit is given as first developed in Sweden in the early 1920's. This is the first time I have seen America credited as the "birthplace."
richb
Mon, 17 May 2010 14:10:48 -0500
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