I hath conquered my fear of cement. Feels goodman.
>I hath conquered my fear of cementlook up the dangers of accelerants like CaCl2 in cement and some of the horrible accidents caused by it. there's a video on YT by a guy who got horrifying chemical burns on his legs from kneeling in it briefly. he had to get skin grafts
>>2975772Yea, i do it carefully. Eye protection and stay upwind. Simple as.Also: don't dip your dick in it.
>>2975772Also: use 4 rock to 2 sand to 1 cementIt produces a passable concrete.
who fears cement
>>2975796heh
>>2975767cg, don't forget rebar anon. it greatly improves it's durability.
>>2975832Not if you use rock
>>2975772Don't wade around in fast set and you'll be fine
I'm a former concrete driver and now concrete batch manager, AMA
>>2975782yeah if you want bullshit. Use like 75% of sand to rock by weight and like 19% of cement. For instance in a yard you would have like 1700lbs of rock, 1300lbs of sand and 325lbs of cement. Scale this up or down, that's a standard residential concrete mix.
adding low temp parrifin wax was can halt the curing process until the paraffin phase changes restarting the endothermic curing process making self heating concrete for cold temps. universities have made it last for three years. dumping iron fragments in concrete can turn it into a giant resistance heating element currently being tested at airports for decreased deicing time and hopefully to reduce chems on bridges.
>>2975981I want bulltshit... for foundation, go with 4 to 2 to 1, not pretty, strong
>>2975981Also, put all the concrete rubble, rocks (preferably sharp) and any other hard ballast in there to make your $40 bag of portland go further.
>>2975781>Don't dip your dick in it. How the fuck are you supposed to make drainage holes?
>>2975767
>>2975993You mean like this stuff?
>>2976038Nvm chatgpt says it's s terrible idea.
is white cement waterproof?
>>2976002You're burning money. The ratio I gave is for a bog standar residential slave mix but for a footing or if you want a stronger slab increase the cement to like 450lbs per yard. Your sand and rock ratios are way off, you the rock is your strength, the sand just makes it all one thing. You're wasting money on cement and making way to sandy of a mix. For any normal application that isn't like block fill or shotcrete that rock to sand ratio I posted is basically the rule. There is nothing you will be doing that requires you to have 25% cement. There's nothing anyone does that does that. 900lbs of cement per yard is something you might consider if you need loaded 18 wheelers to drive on it the same day.
>>2975970why is my mud late and the wrong color
>>2975796pay your gambling debts fucko
>>29761474 rock2 sand1 cementWhere do you read 25%?
>>2975781>Don't dip I don't know any other way to tool the decorative grooves in my walls
>>2976038>>2975993NEVER EVER ADD IRON FILINGS TO FOUNDATION CONCRETE That would be the absolutely most retarded thing you can doAny additives without actually knowing what you're doing should be avoided
>>2975772>kneeling in it brieflyHe was literally crawling around in it the entire time he was smoothing out his garage slab. Just don't do that and you won't need skin grafts
>>2976163>why is my mud latebecause dumb fucks like you don't know how to measure, start a second project with your call back, or keep our driver there twice as long as you should because your crew couldn't afford their meth that week>the wrong coloryou ordered a flyash mix because you were drunk
>>2976421concrete itself will do that, it has nothing to do with any of the admixes. The shit's PH is like 12. You're not supposed to let it continously contact your skin.
>>2976367Start using weights and percentages you dumbass. Whether it's 1 yard or 700 yards, concrete isn't batched by "parts", it's batched by specific weight tolerances that are printed on the ticket and can be extrapolated from weighing a 38lb tester can.
>>2976444Do you even scope? It's a fucking harbor freight job. I'll use parts.
>>2975781dipping your dick in wet concrete is fine in moderation
>cement
>>2975993>dumping iron fragments in concretewow...what an amazing idea...if only weve been doing this for decades already
>>2976454This. When you're mixing with a small mixer you are using shovel-fulls as your measurement cup. It's not rocket appliances.
>>2976867Exactly.
>>2976041Yeah, as long as it's not black you're good otherwise it drowns
>>2975767What about the other 3 ingredients needed to make concrete?
>>2977100Pussy juicy, kidney stones, chopped organic almonds
>>2976039you increase the conductivity and pass electricity through it, it becomes a resistance heater. i am excited for to pass muster could be a novel approach to fatbergs in sewers, bridge deicing quite a few application most should reduce depreciation rate of public infrastructure
bros we recently got a "wet batch" plant that premixes the concrete before you put it into a truck, it's so fucking fast. If I use any of our dry batch plants now I just want to manually load everything because the computer seems so slow but I'll just break the belt and blow powder out of the truck. This shit is incredible. We're working on dialing in the timing and sequencing for weighing up and dispersing the material into the plant's mixer, it's fast but it could be faster. But from the time all of the material is in the plant, it mixes while the ticket prints and I can put 10 yards into a truck in less than one minute as long as they're positioned properly so it doesn't stack on the hopper.
>>2975772>don’t touch industrial muck >don’t get chemical burnsWow
>>2975767Looks wet desu although I can't tell for sure without video.
>>2977612Imagine the energy costs lol
>>2976041No. If you want waterproof concrete, either add an additive to make it hydrophobic or by a mortar that says hydrophobic or something.And it will never be completely waterproof, which btw is a good thing
>11500 ADD (Anno Deucalion Deluge)>still using portland cement slopGeopolymers buildings have lasted tens or hundreds of thousands of years, why use slop that'll crumble in 50-100 years?
>>2976444Wasted trips. Parts ARE weight measurements, dumbass
