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Post by puffy on Dec 3, 2020 22:19:10 GMT -5
I read today that the grains of beach sand are shaped different and make better concrete than desert sand..With the increasing use of concrete in the world these days there could be a shortage of sand to make good concrete...NO..I'm not smoking strange tobacco..I really did read this...Maybe I read too much.
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Post by Ronv69 on Dec 3, 2020 22:31:59 GMT -5
Around here the sand is mined from areas that were once the ocean bottom. Does that mean it's good or bad?
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Post by Ronv69 on Dec 3, 2020 22:36:23 GMT -5
The best concrete is made with pozzolanic ash. It lasts longer than modern concrete. See the Parthenon.
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Post by daveinlax on Dec 3, 2020 22:42:38 GMT -5
I just retired from mining sand and you wouldn't believe how complex and picky the business is. Every application has different specs.  |
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Post by Gandalf on Dec 3, 2020 22:50:45 GMT -5
I read today that the grains of beach sand are shaped different and make better concrete than desert sand..With the increasing use of concrete in the world these days there could be a shortage of sand to make good concrete...NO..I'm not smoking strange tobacco..I really did read this...Maybe I read too much. I don't believe it makes much difference. Sand is sand. Any minor difference won't make that much difference in the concrete, and I don't think builders really care. The Romans actually had better concrete - because they used volcanic material (pumice?) - but you don't see builders running out to buy volcanic material. |
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Post by Gandalf on Dec 3, 2020 22:55:39 GMT -5
I remember several years ago there was a shortage of concrete worldwide - to support some huge dam project in China.
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Post by Ronv69 on Dec 3, 2020 23:15:52 GMT -5
I read today that the grains of beach sand are shaped different and make better concrete than desert sand..With the increasing use of concrete in the world these days there could be a shortage of sand to make good concrete...NO..I'm not smoking strange tobacco..I really did read this...Maybe I read too much. I don't believe it makes much difference. Sand is sand. Any minor difference won't make that much difference in the concrete, and I don't think builders really care. The Romans actually had better concrete - because they used volcanic material (pumice?) - but you don't see builders running out to buy volcanic material. Actually, some are. |
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Post by lizardonarock on Dec 4, 2020 4:43:04 GMT -5
Mexico along with one big Japan company purchased almost all the US readymix concrete companies but I have not played the concrete supply game in many many years. As for sand JR Simplot uses special hi silica sand to make fertilizer and there is a limited supply of sand for semi conductors need. Like a power pant nobody wants a big mining operation in the back yard.
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Post by oldcajun123 on Dec 4, 2020 8:59:02 GMT -5
 I learned that it does make a difference on the structure of sand, before an invasion divers will take a sample of the sand to see what kind of heavy machinery it will stand. A little fact the Navy taught me.
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Post by Plainsman on Dec 4, 2020 8:59:18 GMT -5
I live in the Sandhills of Nebraska— the largest contiguous area of grass-stabilized sand dunes in the world. No shortage here.
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Post by Legend Lover on Dec 4, 2020 9:53:02 GMT -5
I just retired from mining sand and you wouldn't believe how complex and picky the business is. Every application has different specs. I would never have known. No desert here, but we've a ton of sand on our beaches...which is not allowed to be removed. That said, there are parts of the country that are very sandy, so I think we'll be grand for a while yet. |
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Post by taiguy66 on Dec 4, 2020 18:15:04 GMT -5
The only sand I’ve come across lately are the ones in bunkers at my club. Overall the sand is consistent but I’ll know we’ve reached a crisis when it’s gets inconsistent and wonky.
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Post by trailboss on Dec 4, 2020 18:24:05 GMT -5
When I worked underground construction, I was glad when the backfill required a lot of sand on pipes, the compaction requirements that sand easily satisfied, meant less time on the whacker packer.
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Post by Gandalf on Dec 4, 2020 18:57:40 GMT -5
I read today that the grains of beach sand are shaped different and make better concrete than desert sand..With the increasing use of concrete in the world these days there could be a shortage of sand to make good concrete...NO..I'm not smoking strange tobacco..I really did read this...Maybe I read too much. I don't believe it makes much difference. Sand is sand. Any minor difference won't make that much difference in the concrete, and I don't think builders really care. The Romans actually had better concrete - because they used volcanic material (pumice?) - but you don't see builders running out to buy volcanic material. I stand corrected. I did some research and there is more impact due to the shape of the sand grains than I thought. Sounds like people are going to have to find new construction methods. |
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Post by Plainsman on Dec 4, 2020 19:19:26 GMT -5
Where I live wasn’t settled until the middle of the second decade, after passage of the Kinkaid act in 1913. I’ve seen a lot of the old foundations made from native sand. Most of them coarse and crumbly and poor concrete. I dn’tt know whether it was the sand or the makers but it is pretty consistently poor stuff.
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flyinmanatee
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Post by flyinmanatee on Dec 4, 2020 19:40:10 GMT -5
I don't believe it makes much difference. Sand is sand. Any minor difference won't make that much difference in the concrete, and I don't think builders really care. The Romans actually had better concrete - because they used volcanic material (pumice?) - but you don't see builders running out to buy volcanic material. I stand corrected. I did some research and there is more impact due to the shape of the sand grains than I thought. Sounds like people are going to have to find new construction methods. The World in a Grain of Sand by Vince Beiser is a book from last year I think that I've been meaning to pick up. Heard the interview with the author. Part of the issue is logistics with the right kind of sand not being near where the most construction is going on. I was surprised at modern day concrete not being nearly as old as I thought. |
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jay
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Post by jay on Dec 4, 2020 22:15:54 GMT -5
Guess I'll just go pound sand.
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Post by kxg on Dec 4, 2020 22:55:18 GMT -5
When I worked in the oil and gas business, I learned the specs on frac sand were quite rigorous. And as mentioned above, logistics played a big part. When you are pumping several hundreds of thousand pounds of sand on a frac, you don’t want to be shipping it from half way across the country!
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Post by sparks on Dec 6, 2020 17:23:25 GMT -5
I don't believe it makes much difference. Sand is sand. Any minor difference won't make that much difference in the concrete, and I don't think builders really care. The Romans actually had better concrete - because they used volcanic material (pumice?) - but you don't see builders running out to buy volcanic material. I stand corrected. I did some research and there is more impact due to the shape of the sand grains than I thought. Sounds like people are going to have to find new construction methods.
I think you meant, "I sand corrected."
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Post by taiguy66 on Dec 6, 2020 18:53:52 GMT -5
I stand corrected. I did some research and there is more impact due to the shape of the sand grains than I thought. Sounds like people are going to have to find new construction methods.
I think you meant, "I sand corrected."
I DON’T GET IT. 🤪🤣 |
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Post by sperrytops on Dec 6, 2020 20:40:38 GMT -5
Never thought sand was such a complicated business.
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jay
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Edward's Pipes....only Edward's pipes....and Buccaneer in the bowl
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Post by jay on Dec 6, 2020 23:07:53 GMT -5
Never thought sand was such a complicated business. Wait until we start talking about rocks, then. |
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briarbuck
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Post by briarbuck on Dec 7, 2020 9:39:51 GMT -5
As a golfer, I can attest to the fact that there is no sand shortage. I find it every time...
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I learned that it does make a difference on the structure of sand, before an invasion divers will take a sample of the sand to see what kind of heavy machinery it will stand. A little fact the Navy taught me.
