Excellent use of recyclable waste resources which solves two problems in one swoop. The use of fly ash removes a vast amount of stored residue from the environment, which eradicates potentially contaminating materials and it provides a cost-effective alternative to high energy consumption clay brick manufacturing. We desperately need to find similar creative solutions to other materials storage problems like nuclear waste, biomass, tires, paper, plastics,etc. Current approaches are too piecemeal and not cost effective.
It would also be a fantastic discovery to create a way of using/storing the carbon output from coal burning plants' chimneys. If this could be done then coal electrical generation would be absolutely perfect for energy needs in the 21st century. We have 50% of the problem solved but need to focus on truly "clean" coal solutions for the other 50%. Well done Mr.Pounds.
Discussion on:
Just
In
In
RE: Reinventing the clay building brick
Posted by wacker@...
3rd Jun 2010
Show:
0
Votes
RE: Reinventing the clay building brick
Posted by weedonald@...
2nd Jun 2010
0
Votes
RE: Reinventing the clay building brick
How about the radon gas problem with coal clinkers?
That killed the market for "cinder blocks", which are not concrete blocks, but look like them. That also killed the market for cinders as a paving material.
That killed the market for "cinder blocks", which are not concrete blocks, but look like them. That also killed the market for cinders as a paving material.
Posted by FreeloaderFred
2nd Jun 2010
0
Votes
RE: Reinventing the clay building brick
fred-you read my mind-I have been involved with the handling and hauling of flyash in the past and that is definately something that needs addressed
Posted by GEOD998
2nd Jun 2010
0
Votes
RE: Reinventing the clay building brick
I am a 30 yr veteran of the masonry trade and can tell you this is no new news. Fly ash has always been used in brick and block mixes. It is used in cement products all over the world.
Masonry is a very green product and brings a high LEED rating to any project.
Build with brick!!!
Masonry is a very green product and brings a high LEED rating to any project.
Build with brick!!!
Posted by jwlthe4th
2nd Jun 2010
0
Votes
Another use for flyash
There was a "green construction" show on PBS for a short while where they used the flyash in the mix for concrete. It had the disadvantage of making the concrete cure more slowly, BUT it also had the advantages of reducing the cost of the concrete mix (not as much cement was needed) AND increasing the overall strength of the mix.
How does that sound?
How does that sound?
Posted by JTF243@...
2nd Jun 2010
0
Votes
nothing innovative about using fly ash
It's been used in bricks and pavement for decades at the very least. They
used cinder block in the late 1930s, to keep strength and insulation value
with a lighter block. They also used recycled rubber in pavement in the
1960s. Speaking of insulating value, they've also been using Rocque (a
sort of foam concrete) for molded architectural features for several
decades... and it cures much faster.
used cinder block in the late 1930s, to keep strength and insulation value
with a lighter block. They also used recycled rubber in pavement in the
1960s. Speaking of insulating value, they've also been using Rocque (a
sort of foam concrete) for molded architectural features for several
decades... and it cures much faster.
Posted by Professor8
2nd Jun 2010
0
Votes
RE: Reinventing the clay building brick
Popular Science had an article two years ago about using fly ash
to make bricks.
The inventor developed a way to use high pressure but low
temperature to make bricks more cheaply. Regular bricks need
really high temps for a long time.
to make bricks.
The inventor developed a way to use high pressure but low
temperature to make bricks more cheaply. Regular bricks need
really high temps for a long time.
Posted by Jkirk3279
2nd Jun 2010
0
Votes
RE: Reinventing the clay building brick
A guy from my home town (Fulton, N.Y.) invented this stuff 50 years ago. ESTACRON is a patented cementitious construction material composed of portland cement, sand, stack dust (cement kiln dust), fly ash, polyethylene strips, and water. Compared with conventional concrete, the combination of stack dust and fly ash may be viewed as a replacement for aggregate. However, because of their cementitious quality, they could also be regarded as a part of the binder along with cement. In addition, polyethylene strips serve as a reinforcement of the material. This testing and evaluation program was undertaken to assess the strength and thermal properties of ESTACRON. The characteristics of the constituent materials used in ESTACRON were determined and identified. Well over 400 tests were performed, involving 51 different mix designs. In order to evaluate ESTACRON as a structural material, eight reinforced ESTACRON beams and slabs were tested as a pilot study. Thermal conductivity for two different ESTACRON mixes was determined and compared with that of the conventional normal weight concrete.
Posted by wacker@...
3rd Jun 2010