18-08-2020 21:35 | |
Into the Night★★★★★ (21559) |
Xadoman wrote: Nope. The rebar is not supposed to be exposed. Xadoman wrote: Nope. You are quoting a code that does not exist. Xadoman wrote: Argument by repetition fallacy. Xadoman wrote: So will iron. See the 9/11 collapse as well as other numerous lattice frame construction collapses due to fire. Special pleading fallacy. No argument presented. Repetition. False authority (void authority). denial of chemistry. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
18-08-2020 21:36 | |
Into the Night★★★★★ (21559) |
HarveyH55 wrote: Bingo. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
18-08-2020 23:07 | |
Xadoman★★★★☆ (1029) |
A Representative Chemical Composition of Urine Diffusion of Chlorides into concrete There are of course many other types of ways how rebar starts to rust but this is the most problematic cause of corrosion. Harvey, I explained earlier why I wanted something more resilient than an outhouse over a simple digged hole in the ground. Got tired of dragging it to new places. Got tired of fixing rotten wood and placing blocks under the corners to not to let it fall over. I also explained why I do not want a septic system. I could build a bulletproof septic system but it would be a complete overkill in my situation. Guys , I need a little bit of advice how to reinforce the suspended slab. The slab is going to be on the top of the latrines and will have a strategic hole in the middle and small hole for a vent pipe. Top view of the slab is going to be something like that: The question is - should I reinforce it as continuous beam or should I make two separate slabs. The slab is going to be approximately 5 inches (12,5 - 13 cm ) thick. In the beginning I planned two separate slabs with only bottom reinforcement to save money on reinforcement. As much as I understand the slab that is supported only at sides needs only bottom reinforcement and a slab that has a support wall in the middle and the reinforcement is not interrupted there needs two layers of reinforcement - top and bottom layer reinforcement. As you can see, the first option needs 2 times less reinforcement. But there is the trouble of separating the slabs with a plank or smth in the middle and grouting the crevice later. I am starting to think that I should just pour the thing as one solid slab . It is quite small slab so I can live with the extra cost of the second layer of reinforcement. I have some doubts though . Is the slab thick enough to put two layers of rebar into it? Is it going to be stronger or could it be that the slab is not thichk enough and the strenght would be compromised? Somebody also told that with continuos beam the middle wall will have more load than with two separate beams( not that it is important but it seemed strange to me). Edited on 18-08-2020 23:12 |
19-08-2020 00:01 | |
James___★★★★★ (5513) |
Xadoman wrote:A Representative Chemical Composition of Urine I think you're missing it Xadoman. Water poor countries reclaim waste water for irrigation. If you wanted to be concerned about the environment, why not place a porous material between a water collection pit so that water can drain from your waste? Then your waste could be composted in a greenhouse. It's time to become organic fertilizer will probably be much less than 3 months. And at the same time the waste water that you collect could be used for irrigation. Granted, where you live, not needed but in some countries, your idea might be a blessing. |
19-08-2020 01:02 | |
HarveyH55★★★★★ (5193) |
The whole project seems strange to me... I haven't seen or used an outhouse since I was a teen. Most were on a couple beams, basically rough cut logs, so that it could be hooked up to a truck/tractor, and pulled to the new location, not very far. Instead of a better pit, I probably would have focused on a better 'closet', if rotting wood was the main issue. Considering it's only used a few months out of the year, the contents of the pit, wouldn't accumulate that quickly. Would need to dig a new hole for many years. Your clay soil, makes doubtful, that much, if any of the contents, are going to migrate toward the lake, in a very long time, if ever. |
19-08-2020 01:54 | |
Into the Night★★★★★ (21559) |
Xadoman wrote: Diffusion of Chlorides into concrete It doesn't diffuse into the concrete. Concrete is waterproof. Xadoman wrote: Nope. The rebar is embedded in the concrete, if properly installed. No water or anything else can touch it. Xadoman wrote: What you are building is a simple digged hole in the ground, but you are lining it with concrete and expensive rebar. Xadoman wrote: A septic system is not overkill. They are simple and effective. Xadoman wrote: Okay. Xadoman wrote: Continuous. It is stronger. Xadoman wrote: Okay. Xadoman wrote: Continous is stronger. The joint has no strength. Xadoman wrote: I agree. One slab. Xadoman wrote: Don't need a 2nd layer. One will do. Xadoman wrote: Only need one layer. Xadoman wrote: Not with 2 layers, no. Xadoman wrote: Strength is a function of thickness, span, having rebar in it, and any holes you put in it, and any reinforcing rings put into the holes, and the shape of the holes. Xadoman wrote: Joints have no significant strength. People build lids like this all the time out of reinforced concrete. I suggest you follow those designs. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
19-08-2020 01:56 | |
Into the Night★★★★★ (21559) |
HarveyH55 wrote: Yup. Easy to move the thing around with any farm tractor, or even a mule or two. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
19-08-2020 04:33 | |
James___★★★★★ (5513) |
Into the Night wrote:HarveyH55 wrote: Oregon must be different. The amount of waste a person generates isn't much. Unless of course they eat a lot while sitting around doing nothing. Energy burned reduces waste. |
19-08-2020 09:14 | |
Xadoman★★★★☆ (1029) |
Don't need a 2nd layer. One will do. Wrong. Firstly one need to know what type of beam or slab it is |
19-08-2020 09:36 | |
Xadoman★★★★☆ (1029) |
HarveyH55 wrote: https://www.youtube.com/watch?v=CYqi86SW0g4 Those kind of toilets are very popular in India. Notice how the composted manure is spread with bare hands without any discomfort. That is the beauty of composting - no trouble with disposing the feces. My project is a little bit different than in this video. I will build a wooden superstructure over the strategic hole in the slab. I like sitting on the "toilet seat" instead of squatting over the hole( though by experts the squatting is told to be the most natural and healthy way of defecation). |
19-08-2020 16:37 | |
IBdaMann★★★★★ (14373) |
Xadoman wrote: ITN, I understand from your previous posting that you know a lot about sewage water purification systems. I have a question about small septic systems that most households nowadays use to treat sewage. I mean those systems that have a tank under the ground that has 3 separate chambers and an overflow pipe that leads to a draindfield. The big controversy coming out of Europe this week is Poland's purchase of 6,000 septic tanks ... and Polish Prime Minister Mateusz Morawiecki's threat to position them along the German border once the Polish Army learns how to drive them. --------- There's a Leftist Pole on Just Plain Politics who loves to bash capitalism and the US. I include a Polish joke in each of my responses to him. They get under his skin and he accuses me of "discrimination." I just thought the one above would go nicely in this thread. . I don't think i can [define it]. I just kind of get a feel for the phrase. - keepit A Spaghetti strainer with the faucet running, retains water- tmiddles Clouds don't trap heat. Clouds block cold. - Spongy Iris Printing dollars to pay debt doesn't increase the number of dollars. - keepit If Venus were a black body it would have a much much lower temperature than what we found there.- tmiddles Ah the "Valid Data" myth of ITN/IBD. - tmiddles Ceist - I couldn't agree with you more. But when money and religion are involved, and there are people who value them above all else, then the lies begin. - trafn You are completely misunderstanding their use of the word "accumulation"! - Climate Scientist. The Stefan-Boltzman equation doesn't come up with the correct temperature if greenhouse gases are not considered - Hank :*sigh* Not the "raw data" crap. - Leafsdude IB STILL hasn't explained what Planck's Law means. Just more hand waving that it applies to everything and more asserting that the greenhouse effect 'violates' it.- Ceist |
19-08-2020 23:50 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:Don't need a 2nd layer. One will do. Means nothing. Who is 'we'. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
19-08-2020 23:51 | |
Into the Night★★★★★ (21559) |
IBdaMann wrote:Xadoman wrote: ITN, I understand from your previous posting that you know a lot about sewage water purification systems. I have a question about small septic systems that most households nowadays use to treat sewage. I mean those systems that have a tank under the ground that has 3 separate chambers and an overflow pipe that leads to a draindfield. Owww. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
20-08-2020 10:57 | |
Xadoman★★★★☆ (1029) |
Means nothing It seems we have to go back to basics. Lets take a look at the comparison of simple and continuous beam: https://engineering.stackexchange.com/questions/8923/why-the-design-of-continuous-beam-is-always-more-economical-than-beam-with-suppo The reality is a bit more complicated, and depends greatly on the materials being used. This analysis confirms that continuous beam needs both bottom and top reinforcement while simply supported beam needs bottom reinforcement. I have read many books about construction and all of those books also confirm it. It is basic knowledge in construction. Edited on 20-08-2020 11:01 |
20-08-2020 11:23 | |
Xadoman★★★★☆ (1029) |
Here is also one question that has been on my mind lately. Does concrete expand a little in the initial phase of curing? I know that eventually concrete shrinks a little but in the beginning after the placement it heats up a lot and therefore I have some doubts that it might expand a little in the beginning. I have tried to find information about it the web but without success so far. |
20-08-2020 18:39 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:Means nothing Still means nothing. Why are you even bringing this up? Who is 'we'? The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
20-08-2020 18:46 | |
Into the Night★★★★★ (21559) |
Xadoman wrote: Not important. This phase is still quite green, and the concrete is flexible. Don't put it in a closed container and there isn't a problem. Xadoman wrote: It actually can shrink a fair amount. Too quickly if allowed to dry out too quickly. Keep it moist until curing is enough walk on it. One way to do that conveniently is to cover it with plastic, or use burlap soaked in water. For smaller slabs, just a fine mist spray with a hose from time to time works a little. Once you can walk upon it, you no longer need to keep it wet, and curing will continue until complete (several months to decades, depending on the type and shape of the pour). Most of the strength of the concrete by this point of curing is already there. Xadoman wrote: Heat expansion does cause a slight expansion. So does the hydration. It's not much, and not a problem. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
20-08-2020 21:45 | |
Xadoman★★★★☆ (1029) |
Heat expansion does cause a slight expansion. So does the hydration. It's not much, and not a problem. Not important. This phase is still quite green, and the concrete is flexible. Don't put it in a closed container and there isn't a problem. I was a little bit doubtful. I left a special slot ( tooth in the wall) where the slab will be seated. I was thinking if I pour it without expansion joint then in the initial phase( when it gets hot) the concrete has nowhere to expand horizontally and maybe this could cause some trouble. Someone also told me( an engineer) that this would not cause a problem. I just want to be completely sure. Why are you even bringing this up Because I am going to pour a suspended slab and I was not completely sure which way to go. A simple beam or continuous. The slab is going to have quite large openings( ca 22 inchx22inch for the strategic holes and 8 inches for the vent pipes) so I do not want to mess it up. If it were a slab without openings then I would go with only bottom layer but with opening I am probably going with two layers of rebar and around the openings I am going to put the rebar with tighter spacing. |
20-08-2020 22:13 | |
James___★★★★★ (5513) |
Xadoman wrote:Heat expansion does cause a slight expansion. So does the hydration. It's not much, and not a problem.Not important. This phase is still quite green, and the concrete is flexible. Don't put it in a closed container and there isn't a problem. Use hydraulic cement. It hardens even in water. With concrete, it's greatest enemy is ice. When water is absorbed by concrete and then freezes, it expands. As a result concrete fractures. Heat is not a problem. Just look at Phoenix. Cold weather allows for icy conditions, is a problem. With heat, look at caliche. Around Phoenix, it's what the ground is composed of. It is very difficult to dig through. What the 2 of you are discussing is a null hypothesis. If heat affected concrete. It hardens it but does not expand it. Literally, the 2 of you are discussing an expansion of about 10 millionths per degree Celsius. And to be technically correct, an increase of 100º C., say from 30º to 130º C. allows for an expansion of about 1 one ten thousandth. This amounts to a length change of 1.7 centimeters for every 30.5 meters of concrete subjected to a rise or fall of 38 degrees Celsius. This means going from freezing to 104º F. And the 2 of you are saying that 10 feet of concrete which is about we'll exaggerate and say 3.5 meters, okay? That's an expansion of 1.7 mm over a height of 10 feet. And rounding up, that's 0.07 inches. Okay, an expansion of 1/16th of an inch over a height of 10 feet. What can I say? I'm bored. And technically speaking, if a 10 foot tall column of concrete or cement rise/expands by 1/16th of an inch, it has expanded. https://www.engr.psu.edu/ce/courses/ce584/concrete/library/cracking/thermalexpansioncontraction/thermalexpcontr.htm p.s., a 115 ft tall column of concrete expands about 1/16th of an inch. But we'll go with a 10 ft tall column because it shows how serious the expansion of concrete due to heat is. Edited on 20-08-2020 22:19 |
20-08-2020 22:58 | |
Xadoman★★★★☆ (1029) |
That's an expansion of 1.7 mm over a height of 10 feet. And rounding up, that's 0.07 inches. Okay, an expansion of 1/16th of an inch over a height of 10 feet. The slot the concrete is poured is a solid structure made of concrete. Do you think the slot in concrete could deform 1.5 mm without cracking the walls to accomodate expanding slab that is heavily warming from hydration? |
20-08-2020 23:26 | |
James___★★★★★ (5513) |
Xadoman wrote:That's an expansion of 1.7 mm over a height of 10 feet. And rounding up, that's 0.07 inches. Okay, an expansion of 1/16th of an inch over a height of 10 feet. At the same time, if the entire structure expands in a uniform manor, then the decrease in the height of the socket would be about 1/1500th of an inch. Actually a lot less than that. It's just that when you consider 1.7 mm as a ratio to 350,000 mm, concrete's expansion in that aspect is meaningless. And with the top and bottom of the slot, it's still 1.7 mm to 175,000 mm. So it's expansion is actually about 1/100,000th. Just an FYI; https://kta.com/kta-university/coating-concrete-performance-expectations/ |
20-08-2020 23:47 | |
Xadoman★★★★☆ (1029) |
One thing also bothers me. The concrete shrinks quite a lot during curing. How come the walls have no visible cracks after the formwork is removed. Lets say we have a 15foot x30foot foundation. The shrinkage of the longer wall should be quite big - approximately half inch or maybe even more. The formwork in my opinion can not forgive such a big shrinkage. There are no visible cracks usually. Does that mean that there are many very tiny cracks that sum up to a whole half inch or more? If so then could not we use some kind of padding inside the formwork that could work as buffer to minimize shrinkage cracks?
Edited on 20-08-2020 23:48 |
21-08-2020 00:47 | |
James___★★★★★ (5513) |
Xadoman wrote: What you refer to as cracks are actually fractures. Concrete in a way is "hot". Kind of why it uses water to cure. It helps to release the heat of the curing process. With the dimensions that you gave, .85 mm and 1.7 mm isn't noticeable. 25.4 mm = 1 inch. If you take a matchbook cover and fold it over on itself, you'll have the approximate shrinkage of 15 feet. If you divide that by 180 inches, just not enough stress. Water on the other hand expands more. Kind of why concrete/cement in some climates is sealed. Over time, the fractures can bring down a bridge. And this can take decades. It's a matter of costs in the end. It's about basements but if the 9% expansion rate applies; https://www.matthewswallanchor.com/ice-and-concrete-cracks-dont-mix/ And this reaffirms a 9% expansion of frozen water.[url] https://en.wikibooks.org/wiki/Structural_Biochemistry/Unique_Properties/Expansion_upon_Freezing[/url] And if you live anywhere near Lake Tahoe, water (ice) seems to be your problem. And as I mentioned, a greenhouse would work. Then you could burn the methane and generate H2O. That is only if you want to pursue a biofeedback solution to land erosion. |
21-08-2020 02:04 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:Heat expansion does cause a slight expansion. So does the hydration. It's not much, and not a problem.Not important. This phase is still quite green, and the concrete is flexible. Don't put it in a closed container and there isn't a problem. Nah. It just goes up. Think of it as a mild frost heave. Xadoman wrote: That is correct. It is not a problem. Xadoman wrote:Why are you even bringing this up What do you mean a simple beam or continuous? It's a slab. it's a lid. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
21-08-2020 02:39 | |
James___★★★★★ (5513) |
Xadoman, there is always seepage. But if you want to be environmentally friendly, please consider composting in a greenhouse. Chances are a magazine will like your story and the information you provide. And to burn waste gasses from a composting greenhouse, a candle would do the trick. And if you use a circular pattern, the chimney would be in the center while what is composting can move from the center outward. And if you've followed your own thread, even Iowa will need biosolids so it can grow corn. It's not a matter of if or when but it is what we should be doing today. Edited on 21-08-2020 02:40 |
21-08-2020 04:33 | |
Xadoman★★★★☆ (1029) |
What do you mean a simple beam or continuous? It's a slab. it's a lid. Slab is just like a really wide beam, nothing more. |
21-08-2020 04:56 | |
Xadoman★★★★☆ (1029) |
And this reaffirms a 9% expansion of frozen water. Yes I know what kind of power a freezing water could have. It could move and brake mountains. Imagine what an expanding iron could do to concrete if it rusts and expands 400%. But if you want to be environmentally friendly, please consider composting in a greenhouse. I am not completely sure what you propose here but that does not sound very convenient to me. I like to keep things as simple as possible. All I need is a latrine pit, a sawdust and a little bit of time, nothing more. |
21-08-2020 05:15 | |
James___★★★★★ (5513) |
Xadoman wrote:And this reaffirms a 9% expansion of frozen water. Freezing water doesn't break mountains. It creates glaciers and ice caves like it has in Mt. Rainier National Forest in Washington State. Those are quite popular. Warming temperatures however do thaw such glaciers and caves. Have a brother that enjoyed visiting them. And they do become unstable as the temperature becomes warmer. He knew from going there. This makes the 2nd part of your reply suspect. |
21-08-2020 05:25 | |
Xadoman★★★★☆ (1029) |
Freezing water doesn't break mountains. If water freezes inside a crack in the rock then it will brake the rock. Slowly over time a rock is being demolished. A mountain is just a really big rock, nothing more. |
21-08-2020 06:05 | |
James___★★★★★ (5513) |
Xadoman wrote:Freezing water doesn't break mountains. And you're ignoring that it creates glaciers. I posted that over many decades that freezing water can break a bridge. You ignored that yet say it will break a mountain. I think the bridge will break first but will have to visit Washington State to see if Mount Rainier is still there. It's distinguishable by it's 3 different peaks. Maybe one of them broke? |
21-08-2020 06:12 | |
Xadoman★★★★☆ (1029) |
And you're ignoring that it creates glaciers. I posted that over many decades that freezing water can break a bridge. You ignored that yet say it will break a mountain. I think the bridge will break first but will have to visit Washington State to see if Mount Rainier is still there. I do not ignore it creates glaciers. I also do not ignore that it will break a bridge. Freezing water causes a lot of trouble. I know it because I live in a climate where winters are quite cold. Last winter was exeptional - first time in my lifetime there was no ice on the lake. Lets see what this winter brings to us. |
21-08-2020 06:20 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:What do you mean a simple beam or continuous? It's a slab. it's a lid. Okay....and...? The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
21-08-2020 06:24 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:And this reaffirms a 9% expansion of frozen water. Generally speaking, iron doesn't expand 400% when it rusts. It rather just dissolves away. You are describing what is known an intergranular corrosion, which is caused by a defective allow in the first place. Xadoman wrote:But if you want to be environmentally friendly, please consider composting in a greenhouse. So you want an outhouse. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
21-08-2020 06:55 | |
Xadoman★★★★☆ (1029) |
Okay....and...? It needs to be reinforced accordingly. Whether it is a simple or continuous type. So you want an outhouse. Seems so. Though it needs to be a permanent building that stands at least my lifetime. I could live with the wooden superstructure failures due to storm, fallen tree etc etc but I can not live when the latrines would fail due to the corrosion of the rebar. I could build a new superstructure in a week but only the unstripping of the wormwork took approximately 4 days. I would not want to pour another again in my lifetime. Obviously the pits need to be easily cleaned and without discomfort. Nothing more. |
21-08-2020 10:46 | |
HarveyH55★★★★★ (5193) |
Xadoman wrote:Okay....and...? Wasn't the rotten wood structure, what prompted this elaborate concrete work, in the first place? Normal outhouses are built on skids, so you can drag it over a fresh dug hole occasionally, as needed. |
21-08-2020 17:11 | |
HarveyH55★★★★★ (5193) |
Apparently, sea levels are rising, 'at an alarming rate'. Would inland bodies of water be rising as well? If you live close to a lake, how long before your summer home is underwater? Not the owe more than you could possibly sell it for, underwater, but the H2O kind. We are going to get a visit from the 13th named storm of the season next week, have three more on the way. We aren't even half way through the season yet. |
21-08-2020 18:42 | |
Into the Night★★★★★ (21559) |
Xadoman wrote:Okay....and...? Don't worry about the rebar. It won't corrode unless it's improperly laid into the concrete. I never thought cleaning out any latrine pit was without discomfort, and the lake you want to 'save' will just return to the swamp from whence it came. The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
21-08-2020 18:43 | |
Into the Night★★★★★ (21559) |
HarveyH55 wrote:Xadoman wrote:Okay....and...? He wants to do it the hard and expensive way. Who am I to stop him? The Parrot Killer Debunked in my sig. - tmiddles Google keeps track of paranoid talk and i'm not on their list. I've been evaluated and certified. - keepit nuclear powered ships do not require nuclear fuel. - Swan While it is true that fossils do not burn it is also true that fossil fuels burn very well - Swan |
22-08-2020 04:17 | |
HarveyH55★★★★★ (5193) |
I know both my driveway, and a large slab in the backyard, have rebar. Can't get very close to either, when metal detecting. Both were there 28 years ago, when I bought the house. Not sure when they were poured, house was built in 1946. Neither is cracked, or falling apart. Few oils stains... The driveways I see poured around town, the rebar is laid out in a grid, guessing about 12 inch squares. Hard to get a feel for scale, from the photos previously posted, but it's an outhouse, not a monument, or shrine. I don't think I would have bothered with rebar at all, not really expecting a heavy load, deposited... |
23-08-2020 01:14 | |
James___★★★★★ (5513) |
Xadoman wrote:And you're ignoring that it creates glaciers. I posted that over many decades that freezing water can break a bridge. You ignored that yet say it will break a mountain. I think the bridge will break first but will have to visit Washington State to see if Mount Rainier is still there. I was merely pointing out that if it's sealed which concrete usually is then water won't get into or through the cement. Kind of why I suggested composting it for fertilizer by using a greenhouse. In being realistic about things, biosolids will need to be used in the future to preserve the topsoil on our farms. Otherwise we'll need to farm everything using hydroponics or import from countries that haven't been farmed as much. |
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