How Can I Make An Impact with Concrete| Non Structural Application

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Fly Ash Concrete – How Can I Make An Impact with Concrete| Non Structural Application: a blog about the non-structural applications of concrete.

I was contacted earlier this week by a lady who was in search of making an impact. The only caveat was that she wanted to use fly ash concrete. While I understand that fly ash is not a common ingredient in concrete, it is not uncommon either.

Fly ash concrete is made by substituting fly ash for the cement content in normal concrete mixes. Fly ash is a fine powder that is created as a waste product during coal burning at power plants. The EPA and the US Congress have been pushing for the increased use of fly ash as part of their ongoing green movement. It’s important to know what you’re getting into before you make your impact however, so here are some tips:

Fly Ash Concrete Tips

– Keep your mix design simple, it will be easier to get it right!

– Consider using an existing mix design as a starting point instead of reinventing the wheel

– Make sure you have all the ingredients on hand before you start mixing – don’t run out of water or sand!

– Measure everything out carefully – too much or too little can ruin your project!

Non-Structural Application: a blog about the non-structural applications of concrete.

The Concrete Thinker


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A few years ago, I became interested in the application of concrete in non-structural applications. This blog is a place where I can share my thoughts on this topic and also add some of the things that I have learned about concrete over the years.

The first thing that you need to know about concrete is that it is not a solid substance. It is actually a mixture of water, sand, clay and other substances that come together to form a very strong material. There are many different types of concrete and there are many different ways to make it.

Concrete has been used for many years as a building material. It was first used in ancient times to build the pyramids in Egypt. There are now some modern uses for concrete such as:

• The foundation of your house

• Your garage floor

• A driveway or sidewalk

• The basement walls of your home

In addition to being used in these places, concrete can also be used in many other places such as:

• Your backyard patio area

• A walkway outside your home

• As an outdoor flooring surface on decks or patios

• As a foundation for sheds or other structures in your yard Concrete can

We want to make an impact with concrete. We want to make a difference. We want to change the world. Many of us do. But how? How can we make an impact with concrete? What can concrete do that has a real benefit to society? How can we make a real difference in the world?

I want to help answer these questions by writing a series of blog articles on the topic, this being the first. In this article I will talk about an idea I had for how you could use fly ash concrete in your home or business, and how that could have an environmental benefit.

What is fly ash concrete? Fly ash is a waste product from coal power plants. It is essentially pulverized coal that has been burned but not completely burned up into ash. The remaining material is captured and stored in large silos at the power plant site. The reason it is captured is because it would otherwise go up the smoke stacks and cause air pollution as it passes through the exhaust system (it forms acid rain when mixed with water).

I have been contemplating what I can do to make a positive impact in the world. I want to take some of my personal time and use it to improve life for others. I am very fortunate in my life, and want to give back.

I start with concrete, because that is where I spend my work life. Concrete is not the most glamorous material, but it is a miracle material. I don’t mean that figuratively; concrete really is a miracle material. Concrete is all around us, holding up buildings and providing infrastructure for our society. Concrete is the most widely used man-made material in the world, with nearly three tons used annually for each man, woman and child on earth.

Concrete is also an energy sink. The manufacture of cement (the key ingredient in concrete) produces about 7% of the world’s CO2 emissions per year. That is more than all forms of transport combined! Some experts claim that by switching from Portland cement to fly ash concrete and other sustainable practices we could reduce CO2 emissions from concrete production by at least 50%.

There are many reasons why the idea of mixing fly ash with concrete has appeal.

It increases the strength and durability of concrete, provides a cost savings to the project, and helps our planet by reducing the amount of waste going into landfills.

A major benefit of using fly ash in concrete is that it reduces the amount of Portland cement used in the mix. Concrete made with fly ash is stronger than concrete without it. The fly ash reacts with lime in the cement to form additional cementitious materials which bind with sand and coarse aggregate to form a stronger matrix.

Fly ash is also very useful in providing freeze-thaw durability because its crystalline structure absorbs water and decreases permeability, reducing internal pressure from freezing water. This greatly reduces internal stresses caused by expansion during freezing.

Fly Ash Concrete Advantages

Fly ash increases ultimate strength and decreases permeability while decreasing shrinkage cracking tendencies. It also reduces efflorescence, a common problem when working with Portland Cement.

The use of fly ash has also been shown to lower the risk of alkali-silica reaction (ASR) in concrete. ASR is an expansive reaction between alkalis in portland cement and silica in sand or aggregate that leads to cracking and deterioration

Fly ash is the result of burning coal in an electrical generating plant. When coal is burned, the noncombustible mineral matter in the coal is left behind as fly ash. Fly ash is a fine, glass-like powder recovered from gases created by coal-fired electric power generation. More than 50 percent of all the fly ash generated in the U.S. each year is used to make concrete.

Concrete made with fly ash can be just as strong, durable and workable as concrete made with Portland cement. In fact, fly ash provides greater strength, increased workability, improved finishability and enhanced durability compared to concrete made with Portland cement alone.

Fly Ash Concrete Use

Concrete is a mixture of cementitious materials, water, fine aggregate (sand), coarse aggregate (gravel) and entrained air. Portland cement is a mixture of calcium silicates and small amounts of calcium aluminates that react with water to form a hardened paste. Fly ash replaces some of the portland cement in concrete and increases its durability by reducing permeability and shrinkage cracking. Fly ash also improves workability, which makes it easier to place and finish concrete mixtures containing fly ash than those made without it.

Fly Ash Concrete Advant

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