can you pour concrete over dirt? | razorback concrete,long story short, yes you can pour concrete over dirt. however, you need to follow the process outlined in this article for the best results. if this all seems a bit overwhelming, we suggest reaching out to a professional concrete contractor. razorback concrete is always willing to work with you. visit www.razorbackconcrete.com to learn more..pouring a large slab by yourself with ... - sakrete concrete,dump a bag or two into the wheelbarrow, the less concrete you mix at once the easier it is to mix-up, but the more times you have to repeat the process. you can decide what’s comfortable for you. add water per the mix ratio shown on the bag. extra water can be easier to mix, but it weakens the concrete. in my case i wasn’t too worried about the concrete being at the full specified 4000 psi, so i added a little bit of extra water. mix it up well, then pour.how to break concrete or crack, split rocks easily? dexpan,concrete demolition and rock breaking, cracking, splitting has never been easier with dexpan® non-explosive demolition agent. dexpan® is a cement with amazing 18,000 psi expanding strength when mixed with water. poured into drilled holes, dexpan® breaks concrete and cracks, splits rocks safely and quietly, while providing silent cracking..pouring a concrete floor on solid bedrock,the minimum thickness over the high spots is 2' for pouring over solid bedrock. i would install a poly vapor barrier (10 mil) under the slab. if water is seeping up through the bedrock, you should lay 2' of crushed stone over the bedrock, then the poly, then pour your new floor. click here to post comments.
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yes, primarily surface mining of basalt rock to make crushed stone (for concrete, asphalt paving, and termite barriers) as well as mining of lava rock for landscaping. there is no coal, metal, or....crushed vs round aggregate in concrete - structural,aci 318-05 and -08 does not appear to reward the designer for specifying crushed aggregate over rounded (usually 'river rock') in structural concrete. chapter 4 refers to astm c33, and leaves it at that. certainly crushed rock has better interlock, and must have better shear friction for roughened surfaces..can you pour cement over rocks? - askinglot.com,yes you can put concrete over river rock. marilyn the big trick is going to make sure that it is level to start with and frame it out. you may want to bring some sand in to help level..mortar - pouring concrete over rocks - home improvement,i've been removing some concrete this weekend that i poured years ago over rocks (but without the large boulders). i made the mix a bit more liquid and used a rebar to push the mix into all cracks/spaces by hand, rocks become aggregate. it was as strong as anything for domestic use. don't build a nuclear bunker if it is only for a car park.
it's called an intrusion.depending on just how the igneous rock (molten rock) enters into the existing rock, you can have dikes, sills, plutons and batholiths. is concrete a rock? no. concrete is a....pouring concrete over rocks - fine homebuilding,wet the rocks jut in advance of the pour so the concrete binds better. any help you can provide is genuinely appreciated, a bit outside my comfort zone here..pour concrete over rock? | diy home improvement forum,pour concrete over rock? jump to latest follow 1 - 4 of 4 posts. p. puttster · registered. joined apr 30, 2012 · 594 posts . discussion starter • #1 • jun 15, 2012. my two garbage cans spend their days on a 3' x 8' bed of gravel that i would like to cover with concrete..pouring concrete on top of old chunks and other larger rock,use crushed stone and compact it, definitely if it's outside. drainage and weather, and any type of weight on it will expose weak points where the uneven subsurface is lying.
can i pour my concrete over this rock bed after the rough in? ok so to make a one year long story, very very very short... -4x7 powder room needs to.can you pour concrete over river rock? will it hold up,yes you can put concrete over river rock. marilyn the big trick is going to make sure that it is level to start with and frame it out. you may want to bring some sand in to help level. then once you have it all prepared and ready to pour..pour concrete over large rocks? | diy home improvement forum,wet the rocks jut in advance of the pour so the concrete binds better. any help you can provide is genuinely appreciated, a bit outside my comfort zone here..crushed stone under concrete: why it's needed,when you pour concrete over top of crushed stone, you won’t have to worry about this happening because the rock is solid and won’t erode. allows for water drainage concrete is porous, and will therefore absorb water after a heavy rain.
that is, adding rocks to an already-blended mixture of concrete will reduce its strength over the same mix without the rocks. if this weren't true, they would just add rock to the original mix, since rocks are way cheaper than portland cement..can you pour concrete over existing concrete - the honest,you can pour as thin as 1.5 inches over the old concrete. remember, concrete has aggregate in it (rocks). the smallest rock size is about 3/8 inch. if you pour any thinner than 1.5 inches you don't have enough cement paste over and around the aggregate to get strong concrete..the disadvantages of pouring concrete over existing,pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab's lifespan. the condition of the existing slab is the primary factor that determines how long the new concrete will last. if the foundation beneath the slab is not sound, the new concrete could sink or develop deep potholes..how to pour concrete over-existing concrete slab?,pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab's lifespan. the condition of the existing slab is the primary factor that determines how long the new concrete will last.
pouring concrete on gravel driveway concrete. you can pour directly over the gravel but i would recommend a thin layer of sand if possible to cover the dirt you referred to.wet it slightly before you pour, dirt tends to suck the moisture out of the concrete quickly causing a fast set, weak concrete problem.pouring concrete on gravel driveway sounds fine.maybe dig a trench on either..how to make fake rocks with concrete - wikihow,decide which side is the bottom of the rock, and cut it open so you can remove the inner structure. the rock's shape and strength come from the mortar and wire frame; the inner materials do not provide structure after the concrete has cured. removing them will prevent them from decomposing..how much gravel is needed for a concrete slab?,whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. gravel allows water to drain into the ground below. when packed tightly, however, the gravel doesn't shift beneath the concrete ..can i use pea gravel under concrete? - askinglot.com,correspondingly, can you pour concrete over pea gravel? concrete on pea gravel.a slab with living area over it usually has a gravel bed to facilitate drainage. it should be ok to pour concrete over your gravel walk although you might want to give the concrete a little more depth along the sides.you might want to give the concrete a little more depth along the sides.
it will knock down all of the rocks and bring the 'creamy' concrete mix to the surface. doing this correctly should leave your pad flat and smooth with no holes. the 'wetter' the concrete is, the easier it will seal all the holes up; if you wait to long to bull float, it will be hard to seal the surface..how to pour new concrete over old concrete surface?,placement of new concrete over old concrete shall be conducted according to a pre-planned procedure in order to achieve desired final product. for instance, clean old concrete, fix forms, install steel bars or mesh if necessary, pour concrete,compact and finish concrete, and finally cure the newly placed concrete..can i pour a concrete slab directly onto dirt,yes, it is technically possible to pour concrete directly on top of dirt. most experts do not recommend it, but it can be done if you compact the soil properly. preview post