Best answer

A concrete mix of 1 part cement : 2 parts sand : 4 parts coarse aggregate should be used for a concrete slab. Concrete must be placed within half an hour of mixing. Place your concrete into your formwork; work the concrete into awkward places and corners using a shovel or trowel.

Answered by: Kevin Driedger Date created: Jun 24, 2022

What is a cement slab?

Asked By: hrbrmstr Date created: Jun 15, 2022

Ways To Use A Cement Slab Essentially, a cement slab is a flat, solid pouring of cement that is allowed to dry and harden in place. The most common use for a cement slab is as the foundation for a home, and many contractors believe that a cement slab foundation is the most secure option out.

Answered By: Escualo Date created: Jun 18, 2022

How many bags of concrete do I need for a 6x6 slab?

Asked By: aleroot Date created: Jun 08, 2022

0.667 cu. yds. How many concrete bags would I need for a 6 ft x 6 ft x 6" slab? 29.9 x 80lb Concrete bags.

Answered By: gman Date created: Jun 10, 2022

How thick should a concrete slab be for a mobile home?

Asked By: Johannes Date created: Jun 24, 2022

4 to 6 inches

Answered By: Sachila Ranawaka Date created: Jun 26, 2022

Can I pour a 2 inch concrete slab?

Asked By: cmcculloh Date created: Jun 08, 2022

If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.

Answered By: blackapps Date created: Jun 08, 2022

What kind of cement should I use for a stone wall?

Asked By: BinaryMisfit Date created: Jun 23, 2022

Type N: This medium-strength mortar is the type most commonly used. It is suitable for general use in above-grade exterior masonry, such as freestanding walls and nonloadbearing structures such as planters.

Answered By: Brian Adams Date created: Jun 25, 2022

What is the minimum depth for a concrete slab?

Asked By: Daniel Danielecki Date created: Jun 15, 2022

5 cm thickWhatever you plan on doing, your concrete slab should be at least 5 cm thick. That is the bare minimum of a concrete slab thickness. This is the thickness of the concrete slab alone and it doesn't include the gravel base, if you are using something like that.

Answered By: Narendra_Nath Date created: Jun 16, 2022

What should I use to seal my concrete countertop?

Asked By: Alex Ott Date created: Jun 13, 2022

Acrylics are a commonly used sealer. They come in solvent-based or water-based formulations (solvent-based products are often preferred). These sealers dry water-clear and are UV-resistant. Acrylic sealers can be brushed, sprayed or rolled on to the concrete.

Answered By: Tony L. Date created: Jun 15, 2022

What is the ratio of concrete slab?

Asked By: Harsh Bhikadia Date created: Jun 20, 2022

A concrete mix of 1 part cement : 2 parts sand : 4 parts coarse aggregate should be used for a concrete slab. Concrete must be placed within half an hour of mixing. Place your concrete into your formwork; work the concrete into awkward places and corners using a shovel or trowel.

Answered By: eckes Date created: Jun 21, 2022

What is the best concrete mix ratio?

Asked By: Matthew Barlowe Date created: Jun 24, 2022

A concrete mix of 1 part cement : 2 parts sand : 4 parts coarse aggregate should be used for a concrete slab. Concrete must be placed within half an hour of mixing.

Answered By: Life is complex Date created: Jun 24, 2022

How many bags of concrete do I need for a 8x8 slab?

Asked By: Stretch0 Date created: Jun 16, 2022

How many concrete bags would I need for a 8 ft x 8 ft x 6" slab? 54 x 80lb Concrete bags. How much does it cost to pour a 8'x8' x6" slab? Ready-mix costs approx $277.86.

Answered By: huon Date created: Jun 18, 2022

Related Question Answers



What can I use instead of a concrete slab?

Gravel is one of the more common alternatives to concrete. There are a few different types you can find in the home improvement store that can replace concrete cement used for driveways and walkways. These include pea gravel, crushed stone, and quarry process....Gravel.Pavers.Timber sleepers.Asphalt.Resin.Sand.Mulch.



Do I need rebar for small concrete slab?

You do not need rebar for any slab if you make it thick enough and space the joints properly. Rebar in jointed pavement is there to counter the cupping effect of thermal expansion. I always recommend the use of rebar or at least rewire. Any concrete slab can crack.



What size rebar do I need for a concrete slab?

Rebar in patios, basement floors, footings and driveways may vary from size 3 to 6. Contractors sometimes use the “1/8 Rule,” meaning the size of the rebar is 1/8 the thickness of the slab. For example, a slab that is 6 inches thick might have rebar marked as size 6 or 3/4-inch.



Can I pour a 3 inch concrete slab?

A 3” to 4” slab will work for the floor of a storage or tool shed, workshop, garden shed, or playhouse. Contact your local building authority. Check whether you'll need a permit for your project. You should also find out the setbacks so you'll know how much distance to leave between the lot line and your construction.

Nate Barbettini


Can I pour a concrete slab yourself?

For most do-it-yourselfers, the best material for building a concrete slab is ready-mix crack-resistant concrete mix. The wet mix is poured into a prepared wood form, then left to cure. After the concrete has hardened, the sides of the form are knocked off and the slab is ready to use.

Rinto George


Can I use plywood for a concrete form?

Plywood is economical to use for wall and floor forms; however, plywood used for this purpose should be made with waterproof glue and marked for use in concrete forms. Plywood is warp-resistant and can be used more often than other lumber.

Muntashir Akon


Do I need rebar in concrete slab?

Rebar is recommended for concrete that measures 5-6 inches in depth. The type of and intended use of concrete impacts the need for rebar reinforcement. Rebar must be placed at the center of or slightly above the center of the concrete slab—hence why it should be a certain thickness for best results.



How long should I keep a plaster on a cut?

How often should I change my plaster? Usually, wound dressings and plasters should be changed daily for hygienic reasons. If you use an advanced plaster that provides Moist wound healing conditions, it is recommended to leave it in place for up to two days or more in order to not interrupt the healing process.



How much concrete do I need for a 24x24 garage?

Average Cost To Pour Concrete To pour a typical 10x10 concrete slab will cost $670 to $930, a 12x12 slab for a patio will cost $796 to $1,476, a 20x24 driveway slab runs between $1,440 and $3,360, and a 24x24 slab for a garage will cost $3,058 to $5,944.



How thick of a concrete slab for a hot tub?

about 4 inchesConcrete Slab The base of reinforced concrete should be about 4 inches thick and be able to withstand a weight of at least 115 pounds per square foot, especially for larger spas. The concrete should be fully cured prior to placing the tub.

Atul Arvind


When should I start curing my concrete slab?

How early should the curing begin? Curing should begin as soon as compaction and finishing is completed and before concrete surface looses its water and undergo shrinkage. This is very important for concrete with low to very low water/cement ratio, which does not have much water to bleed to the surface.

Franck Freiburger


What thickness cement board should I use?

Half-inch cement backer board is ideal for most tiling jobs, including walls, floors, countertops, and ceilings.

For flooring, the backer board should be installed over a 5/8-inch thick OSB or plywood base..

Felipe Oriani


Can I use concrete for a fire pit?

Fire-Ready Materials A big issue I see in fire pits is that they are often built only using CMUs (concrete blocks), which are not designed for use with fire. The aggregates will heat up and expand and might potentially pop or explode. I assert that all fire pits should be lined with fire brick and fire clay mortar.

Muhammad Maqsoodur Rehman


How much concrete should I get around my pool?

Table and chairs for up to eight requires a minimum 12' x 12' concrete slab. Small end tables and chairs do vary on size of the table. For concrete purposes we generally recommend 5' x 5' concrete slab. Tanning lounger/ Chaise loungers need a minimum of 8' of concrete off of the swimming pool.



How much should a 10x10 concrete slab cost?

Average Cost To Pour Concrete To pour a typical 10x10 concrete slab will cost $670 to $930, a 12x12 slab for a patio will cost $796 to $1,476, a 20x24 driveway slab runs between $1,440 and $3,360, and a 24x24 slab for a garage will cost $3,058 to $5,944.



What can I use to clean concrete steps?

For mild cleaning, spot cleaning, and/or indoor cleaning, use a mild dish soap and a stiff bristle brush to remove stains from your concrete steps. For stubborn stains and outdoor jobs, use a concrete cleaner with a push broom or a pressure washer to clean your concrete steps thoroughly.



What kind of concrete do you use for a flagpole?

You can use any type of concrete, but I recommend buying high quality concrete because you want to make sure you don't have to re-install your flagpole should it fall over or the concrete begin to crack. I mixed the concrete in a wheel barrow and poured it around the PVC tube about a quarter of the way up the pipe.

Mohammad Hosseini


What kind of wood should I use for a concrete base?

Using 150mm x 25mm sawn and treated timber, cut the four sides of the formwork for your base. This timber should be 300mm longer than your base and 300mm wider. Lay the timber out where you want the base and using a heavy "lump" hammer bang in some 50mm x 50mm posts along the line of the timber.



Should I PVA a concrete floor before tiling?

PVA isn't good, don't use it with any form of tiling... You should seal the floor with a suitable primer that is compatible with the adhesive you buy. i.e. buy Ardex primer for Ardex adhesive, BAL primer for BAL adhesives...



What is the best insulation for under a concrete slab?

Applying a bead of polystyrene-compatible caulk or mastic to the top of the insulation board minimizes water infiltration behind it. For under-slab applications, the rigid foam insulation typically should be installed over a gravel base, with a poly vapor diffusion retarder between the gravel and insulation.

Paul Turner


Should I Concrete split rail fence posts?

No, the hole should be filled only with the dirt that came out of the hole and tamped back in . Concrete is bad for the wood (erodes it), and gravel simply creates a porous pocket where water can collect. Well tamped soil is very stable and waterproof. Some people use concrete for gate posts for additional stability.

Sandeep Raju Prabhakar


When should I cut my concrete slab?

Joints should be sawed as soon as the concrete will withstand the energy of sawing without raveling or dislodging aggregate particles. For most concrete mixtures, this means sawing should be completed within the first six to 18 hours and never delayed more than 24 hours.

Aaron Krauss


What PSI concrete should I use for a patio?

3,000 PSI3,000 PSI. The residential workhorse of concrete, 3,000 PSI can be used for driveways, patios and sidewalks. Its durability will help shrug off the freeze-thaw cycle of harsh winters. This is a fine choice for any general construction use.

Alan Storm


What plaster should I use?

Gypsum plaster can achieve a fine finish and is often used as a topcoat in plastering projects. It's less prone to cracking, making it a great choice for your walls' longevity. This is a versatile plaster that can be used to create a great first coat, called undercoat, for your project.



When can I remove formwork from concrete slab?

For concrete slabs, formwork can usually be removed after 3 days and props after 2 weeks. For beam soffits, formwork should remain in place for 7 days and props for 2 to 3 weeks.

Kamil Kiełczewski


How long should concrete slab cure before framing?

28 daysThe graph reads that in a typical setting the hardened concrete should have reached its intended compression strength by the time is 28 days old. A good rule of thumb for making any use of it other that walking on the slab is to wait 3 days, as you're already at over 30% of the intended compression strength.

dmckee --- ex-moderator kitten


Do I need to cut my concrete slab?

“The minimum depth of sawcut using a wet conventional saw should be the greater of at least 1/4 of the slab depth or 1 in. (25 mm). The minimum depth of sawcut using an early-entry dry-cut saw should be 1 in. ... Some slab designers require cutting the slab the following day to 1/4 of the slab depth to deepen the 1 in.

The Impaler


Do you need special concrete for a fire pit?

A big issue I see in fire pits is that they are often built only using CMUs (concrete blocks), which are not designed for use with fire. ... The same holds true for the materials you use to fill the fire pit. Whether you use stone or glass, you should always use materials designed for high temperatures.



Do I need wire mesh for concrete patio?

For a concrete patio slab the best method of providing reinforcement is to use either wire mesh or steel bars (rebar) placed in a grid pattern. The use of rebar requires that each of the intersections of rebar be tied together with rebar tie wire. ... This must be done as soon as the concrete is poured.



What color should I paint my concrete porch?

After brown and tan, dark gray is probably the most commonly used color for decorative concrete patios. It can be used to imitate stone, but also makes a great backdrop for bolder accent colors.

Golo Roden


What is a good base for a concrete slab?

The base course material, according to ACI 302, "Concrete Floor and Slab Construction," should be "compactible, easy to trim, granular fill that will remain stable and support construction traffic." ACI 302 recommends material with 10 to 30% fines (passing the No. 100 sieve) with no clay, silt, or organic materials.

Mr. Alien


What kind of concrete should I use for fence posts?

Fast-setting concrete is ideal for installing fence posts since it doesn't need to be mixed in a bucket or a wheelbarrow. Once you've finished digging your post holes, add about three to four inches of gravel into the bottom and compact it using a post or a 2x4.



What PSI should my concrete driveway be?

3000 psi to 4000 psiThe typical concrete strength used for a driveway is in the 3000 psi to 4000 psi range, although temperate areas of the country may use lower strengths. Contractors, when ordering ready mixed concrete, should advise the producer of the intended use for the concrete.



What type of concrete should I use for my driveway?

Concrete Characteristics To withstand the weight of vehicle traffic, choose a concrete with a strength of 4,000 pounds per square inch for your driveway. In areas with cold winters, concrete mix should have a 6 percent air-entrainment value.



Should I insulate under my concrete slab?

Creating an insulation layer and a vapor barrier between the concrete slab and the ground beneath it is the best practice in insulating basement floors. The insulation barrier will help keep warm air in, and the vapor barrier will keep unwanted moisture out.



Should I put wire mesh in concrete slab?

Wire mesh makes concrete more durable and increases its strength. The area in which the concrete will be laid down should be covered in mesh before pouring commences.

Nishant Nawarkhede


How many bags of concrete do I need for a 10x12 slab?

The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary.

Mehran Ullah


What is normal moisture in concrete slab?

MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.

Kirill Rakhman


What can I use for concrete expansion joints?

A pliable material is used (asphalt coated, cork, plastic) to construct these types of joints. The material should extend the depth of the slab and extend the full width of the slab. Ideally, for expansion joints on the exterior of a structure, sealing these joint is preferable.



Can I use 2x4 for concrete forms?

Prior to placing concrete forms: Construct the form with 2x4 or 2x6 lumber and secure in place by wood stakes and deck screws. Excavate the slab area to a depth of about 7 inches, allowing 3 inches for a gravel base and 4 inches for concrete.



Can I use cement to fix tiles?

You should either use cement or tile adhesive for fixing tiles, but never a mixture of cement and adhesive. Adhesive is also called as modified cement. Polymers are added in measured quantities to give tensile and shear strengths, for different uses.

Jordon Phillips


Can I pour concrete over existing slab?

Yes, you may pour a concrete pad overlay over an existing slab. You need to consider the added height and weight of the overlay on the existing structure. Overlays may include polymers, portland cement concrete, or epoxies. ... You should improve the drainage of the slab by having a good slope on the overlay.



Can I use pressure treated wood for concrete forms?

Since wet concrete exerts considerable pressure, the wooden form should be strong and anchored to the ground. If you are planning to leave the wood in place, use pressure-treated lumber. If a concrete area is going to be large, it should be reinforced with steel mesh. ... To avoid this, use pressure-treated lumber.

Filip Dupanović


What kind of insulation should I use under concrete floor?

Phenolic foam is a popular choice to get around this issue, as it's able to achieve strong levels of insulation for less depth. If this is the situation you find yourself in, the DPM will sit above the concrete and your moisture resistant chipboard will go on top, beneath the flooring surface.