A little closer view.......

Correct terminology is "Concrete Placement" I think you will find that through out my previous posts that is the term that I used. Frenchie - I think you may have misunderstood the foreman, I'm thinking it's 3700 psi not 37,000 psi concrete. 3,700 is out of the ordinary but it can happen. (most common is 3,000, 3, 500, 3,800 and 4,000 psi concrete)

Cement is indeed the glue that holds the sand, gravel matrix together. It was first discovered by the ancient Romans (see http://www.romanconcrete.com/romanconcrete.htm) The first cement was a mixture of materials one of which was a Pozzolan ash that they discovered would hold together after it got wet. The proportions of the mixture were lost after the fall of the Roman Empire. It was rediscovered after work done by an Englishman near the Village of Portland England and it has been known, ever since, as Portland Cement. (the above is an abbreviated Cliff Notes version). Anything that aids in the cementing process using Portland Cement (like fly ash, or silica fume) is called a Pozzalith.

Anything that holds individual pieces together is a cement. An asphalt road is held together with asphaltic cement. The sand and gravel are the same its just held together with asphalt instead of Portland cement. Asphaltic Concrete was discovered by a Scotsman named MacAdam. That's where the term "Tar Mac" came from.

Love it.

Those ancient Romans ... ya gotta love em.

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Originally Posted by HelmutVII

Correct terminology is "Concrete Placement" I think you will find that through out my previous posts that is the term that I used. Frenchie - I think you may have misunderstood the foreman, I'm thinking it's 3700 psi not 37,000 psi concrete. 3,700 is out of the ordinary but it can happen. (most common is 3,000, 3, 500, 3,800 and 4,000 psi concrete)

Cement is indeed the glue that holds the sand, gravel matrix together. It was first discovered by the ancient Romans (see http://www.romanconcrete.com/romanconcrete.htm) The first cement was a mixture of materials one of which was a Pozzolan ash that they discovered would hold together after it got wet. The proportions of the mixture were lost after the fall of the Roman Empire. It was rediscovered after work done by an Englishman near the Village of Portland England and it has been known, ever since, as Portland Cement. (the above is an abbreviated Cliff Notes version). Anything that aids in the cementing process using Portland Cement (like fly ash, or silica fume) is called a Pozzalith.

Anything that holds individual pieces together is a cement. An asphalt road is held together with asphaltic cement. The sand and gravel are the same its just held together with asphalt instead of Portland cement. Asphaltic Concrete was discovered by a Scotsman named MacAdam. That's where the term "Tar Mac" came from.

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You wouldn't happen to teach in the civil department at UL?

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Originally Posted by HelmutVII

Correct terminology is "Concrete Placement" I think you will find that through out my previous posts that is the term that I used. Frenchie - I think you may have misunderstood the foreman, I'm thinking it's 3700 psi not 37,000 psi concrete. 3,700 is out of the ordinary but it can happen. (most common is 3,000, 3, 500, 3,800 and 4,000 psi concrete)

Cement is indeed the glue that holds the sand, gravel matrix together. It was first discovered by the ancient Romans (see http://www.romanconcrete.com/romanconcrete.htm) The first cement was a mixture of materials one of which was a Pozzolan ash that they discovered would hold together after it got wet. The proportions of the mixture were lost after the fall of the Roman Empire. It was rediscovered after work done by an Englishman near the Village of Portland England and it has been known, ever since, as Portland Cement. (the above is an abbreviated Cliff Notes version). Anything that aids in the cementing process using Portland Cement (like fly ash, or silica fume) is called a Pozzalith.

Anything that holds individual pieces together is a cement. An asphalt road is held together with asphaltic cement. The sand and gravel are the same its just held together with asphalt instead of Portland cement. Asphaltic Concrete was discovered by a Scotsman named MacAdam. That's where the term "Tar Mac" came from.

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The correct terminology for for asphalt installation is "Laydown" and it is placed with a "Laydown Machine"

No I do not. I used to give lectures to the Senior design class when Dr. Bowie was there.

Quote:

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Originally Posted by HelmutVII

Correct terminology is "Concrete Placement" I think you will find that through out my previous posts that is the term that I used. Frenchie - I think you may have misunderstood the foreman, I'm thinking it's 3700 psi not 37,000 psi concrete. 3,700 is out of the ordinary but it can happen. (most common is 3,000, 3, 500, 3,800 and 4,000 psi concrete)

Cement is indeed the glue that holds the sand, gravel matrix together. It was first discovered by the ancient Romans (see http://www.romanconcrete.com/romanconcrete.htm) The first cement was a mixture of materials one of which was a Pozzolan ash that they discovered would hold together after it got wet. The proportions of the mixture were lost after the fall of the Roman Empire. It was rediscovered after work done by an Englishman near the Village of Portland England and it has been known, ever since, as Portland Cement. (the above is an abbreviated Cliff Notes version). Anything that aids in the cementing process using Portland Cement (like fly ash, or silica fume) is called a Pozzalith.

Anything that holds individual pieces together is a cement. An asphalt road is held together with asphaltic cement. The sand and gravel are the same its just held together with asphalt instead of Portland cement. Asphaltic Concrete was discovered by a Scotsman named MacAdam. That's where the term "Tar Mac" came from.

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---So what in the hell is causing the holes in the asphalt at the Airport??? is this a very rare happening??? How will this penalty work as it seems that the work hasn't been accepted!!!!

While we banter the correct way of saying how to get concrete into a form, can someone explain to me why we call it "floating" Sheetrock?

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Originally Posted by Boomer

---So what in the hell is causing the holes in the asphalt at the Airport??? is this a very rare happening??? How will this penalty work as it seems that the work hasn't been accepted!!!!

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I really don't know. It could be from many different things. There could have been a Diesel fuel leak on the laydown machine or other piece of equipment used to lay down the asphalt. Diesel Fuel is a diluent and will have an adverse effect on the asphalt. It could have been something in the asphalt or sand too. I suspect they will find out. I would think they would be concerned about this because of the potential for FOD.

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Originally Posted by Cajunjeb

While we banter the correct way of saying how to get concrete into a form, can someone explain to me why we call it "floating" Sheetrock?

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Not sure but we can talk about sway bars.