Best answer

Calculate the volume of the hole in cubic metres (using V = πr2h) and then subtract the volume of your post. This will give you the volume of concrete required. Simply multiply the volume figure by 108 (108 bags per cubic metre) to give the amount of 20kg bags needed to fill the void.

Answered by: Rafa Guillermo Date created: Jun 26, 2022

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

Asked By: Billy ONeal Date created: Jun 22, 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: Olaf Dietsche Date created: Jun 24, 2022

How do I calculate how much concrete I need for a slab?

Asked By: mainframer Date created: Jun 09, 2022

CONCRETE CALCULATOR FORMULADetermine how thick you want the concrete.Measure the length and width that you'd like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items...•

Answered By: Sriram Sakthivel Date created: Jun 09, 2022

How much concrete do I need for a 12x20 slab?

Asked By: J. Abrahamson Date created: Jun 18, 2022

Concrete Extras With a brief look, a 12x20 area at 6 inches deep, you would need approximately 6.31 tons or 4.44 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

Answered By: gman Date created: Jun 18, 2022

How many bags of concrete do I need for a post hole?

Asked By: icktoofay Date created: Jun 10, 2022

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 - 48 hours.

Answered By: Majid Mohammadi Date created: Jun 11, 2022

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

Asked By: Anurag Uniyal Date created: Jun 21, 2022

As I recall, a 60# bag of concrete is about . 5cf, so you'd need 3 bags per hole.

Answered By: Luke Woodward Date created: Jun 23, 2022

How much concrete do I need for a deck post?

Asked By: Ângelo Polotto Date created: Jun 17, 2022

One 80-lb bag of concrete yields . 60 cubic feet when combined with 4 quarts of water. If you're purchasing 80-lb bags of concrete, you'll need 1.66 bags of concrete. As before, since bags of concrete are only sold in whole quantities, you'll need to purchase two (2) 60-lb.

Answered By: Ahsanul Haque Date created: Jun 20, 2022

How much sand and cement do I need for brickwork?

Asked By: Hamid Yusifli Date created: Jun 18, 2022

1:6 ratio of mortar for brickwork which means cement:sand = 1 part of cement and 6 parts of sand.

Answered By: Razor Date created: Jun 21, 2022

How much cement do I need for a brick wall?

Asked By: moonshadow Date created: Jun 22, 2022

Quantity of cement, Sand or Mortar Required for Brickwork: 1:6 ratio of cement mortar is usually used for brickwork.

Answered By: Boris Pavlović Date created: Jun 22, 2022

How much sand and cement do I need for 100 blocks?

Asked By: Roman Podlinov Date created: Jun 11, 2022

You will need 1000 lbs of sand for the mortar for those 100 blocks. The Recipe for Mortar sand mix will be 1 Part Mortar to 2-1/2 Parts Sand.

Answered By: Apoorva Chikara Date created: Jun 11, 2022

How much sand and cement do I need for 1000 blocks?

Asked By: Andreas Date created: Jun 18, 2022

For laying bricks and blocks in normal applications (SABS Class II) To lay 1000 bricks = 3 bags cement + 0.6 cu. m. sand.

Answered By: Pascal Thivent Date created: Jun 20, 2022

Related Question Answers

eckes

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How much sand and cement do I need for blocks?

For every m2 of wall you will need ten concrete blocks. For every ten blocks you will need two 25kg bags of bricklaying mortar. If you are working on a larger project it may be more economical to mix your own mortar. For bricklaying you need to mix one part of cement to five parts building sand.

samabcde

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How much concrete do I need to set a deck post?

One 60-lb bag of concrete gives you . 45 cubic feet of concrete when mixed with 2.5 quarts of water. In order to have enough concrete for 1 cubic yard (27 cubic feet), you'll require 2.2 bags of 60-lb concrete.

Ben.S

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How much cement do I need for a 20x20 slab?

With a brief look, a 20x20 area at 6 inches deep, you would need approximately 10.52 tons or 7.41 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

bamtheboozle

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How do you mix all concrete rapid set?

CEMENT ALL may be mixed using 3 to 5 quarts (2.8 L to 4.7 L) of water per 55-lb (25-kg) bag. Use less water to achieve higher strengths. Do not exceed 5 quarts (4.7 L) of water per bag. For increased fluidity and workability, use Rapid Set® FLOW Control® plasticizing admixture from the Rapid Set® Concrete Pharmacy®.

Darkman

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How does rapid set concrete work?

Rapid Set Concrete is specially formulated to harden rapidly, so you can complete a job faster and have more time for other projects.

It is highly suitable for fixing fence and non-load bearing pergola posts, clothes hoists and many other non-structural uses..

snr

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How much crushed concrete do I need?

Beside above, how much crushed concrete do I need calculator? In the construction world, most materials are measured in cubic yards. Multiply the length (L), in feet, by the width (W), in feet, by the height (H), in feet, and divide by 27. This will tell you how many cubic yards of crushed stone you need.

Dale K

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How long does it take for rapid set concrete to set?

15 minutesQuick Set Concrete attains initial setting in no more than 15 minutes under normal conditions and should be placed immediately upon mixing. Leave at least two hours after setting before applying any load.

Mariusz Pawelski

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How much concrete do I need for a mailbox post?

In most cases a 50-pound bag of quick-dry concrete should suffice. Saturate the concrete. For a 50-pound bag you will need about a gallon of water. Be sure to leave support beams in place for 4 to 6 hours or until concrete is dry.

Sergey Pleshakov

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How much concrete do I need to fill a 55 gallon drum?

As to how many bags....a 55 gallon drum filled clear to the top is actually closer to 60 gallons. And 60 gallons is 8 cu ft. So if you buy 60lb bags, those do 1/2 cu ft each so you would need 16 of them. IF you buy 80lb bags (2/3 cu ft) you would need 12 bags.

Lea Hayes

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How long does quick dry cement take to dry?

20-40 minutesPRODUCT USE QUIKRETE® Fast Setting Concrete Mix is a general purpose concrete designed to achieve final set in 20-40 minutes. Fast Setting Concrete Mix is suitable for setting posts and pouring slabs when a rapid return to service is desired.

Kamal Nayan

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How much concrete do I need for an inground pool?

Plan on at least 5 minutes per cubic yard, for unloading time. How much concrete do I need? Order this much concrete, for these standard pool sizes. 12 x 24 – 5 yards, 14 x 28 – 6 yards, 16 x 32 – 7 yards, 18 x 36 – 8 yards and a 20 x 40 – 9 yards.

Evk

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How much concrete do I need for deck footings?

In order to have enough concrete for one cubic foot, you'll require 2.2 bags of 60-lb concrete.

Since bags are only sold in whole (not half, or quarter) quantities, you'll need to purchase three (3) 60-lb.

bags for one cubic foot..

Linda Paiste

Guest

How much concrete do I need to set a post?

Remember, the depth of the post hole should be one-half of the above-ground post height.

(Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground).

The calculator will indicate the number of 50 lb.

bags of QUIKRETE® Fast-Setting Concrete you need..

Mohamed-Yousef

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Can I mix fast setting concrete with regular concrete?

As far as the original question by the OP, considering rapid set is just ordinary concrete mix with accelerant, there is clearly no harm in mixing a couple or even 3 ordinary concrete mix bags with one rapid set. The end result will be a faster curing mix.

linkyndy

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Can you mix fast setting concrete with regular concrete?

As far as the original question by the OP, considering rapid set is just ordinary concrete mix with accelerant, there is clearly no harm in mixing a couple or even 3 ordinary concrete mix bags with one rapid set.

The end result will be a faster curing mix..

Emerson Micu

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How do I calculate how much concrete I need for my driveway?

Multiply the square footage by the depth in feet to find the volume of the space in cubic feet. Volume is found by measuring length × width × depth. Finally, divide the cubic footage by 27 to find the volume in cubic yards. This is the amount of concrete needed.

Tony The Lion

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How much plaster do I need for a room?

Once you know how big the room is and ideally know how many square meters are in it, you can simply divide that figure by 9 to give you about how many bags of multi finish plaster you will need. Multi finish covers 10m2, but I say 9m2 to all allow for wastage.

thatguy

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How do you reinforce concrete posts?

To begin reinforcing the post, dig a few inches of soil away from it around the perimeter. Fill the hole with approximately 6 inches of gravel. Top the gravel with rapid-set cement mix powder to fill the hole to 3 inches below the surface of the soil.

Kris

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Can I use fast setting concrete in cold weather?

Because of the rapid setting time, special precautions must be taken, as set times will fluctuate in extremely hot or cold weather.

Use cold water or water mixed with ice cubes in severely hot weather.

Use hot water when mixing in severely cold weather..

peter

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Can I use rapid cement without sand?

Rapid setting cement can be extremely useful, it is more expensive than a traditional mortar mix but it cures much faster and can be used in areas where normal sand and cement cannot be used. ... Rapid setting cement is normally sold in buckets where you can just remove the lid, add water and start mixing.

Pshemo

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How much concrete do I need for 1m3?

Various instructions and regulations therefore also state that you need about 56 packs of dry concrete of 40kg each for 1m³, which results in about 17.86 litres of liquid concrete per pack.

Sai Gopi Me

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How much cement and sand do I need for floor tiles?

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David Citron

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How much concrete do I need for a post hole?

To calculate how much concrete you need, you need to know the post size you are going to use and how many posts you are installing. Your post diameter and height determine how big each hole needs to be. As stated above, fence post holes should be 3 times the diameter of your post and 1⁄3 as deep as your post.

samthecodingman

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How do you repair a concrete floor under a toilet?

You can always repair the concrete with some quick setting cement, and anchor the new flange that way.

I had a similar situation and hired a core driller to core a 14" diameter hole around the flange.

Chipped out the concrete with a little Bosch electric chisel.

Replaced the anchors and poured rapid set concrete..

Gordon Linoff

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How much cement mix do I need?

To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields .011 cubic yards. 60 pound bag yields .017 cubic yards.

GManNickG

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How much Venetian plaster do I need?

BUDGET: You can achieve a homemade Venetian plaster finish for roughly $6 to $11 per 100 square feet, considering you'll need $2 to $3 for pre-mixed joint compound, $0.10 to $0.50 for latex colorant, and $4 to $7 for tinted glaze.

TheMaster

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How do I calculate how much cement I need?

How to calculate concrete:Determine how thick you want the concrete.Measure the length and width that you'd like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items...•Apr 23, 2018

pbaranski

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How do I calculate how much concrete I need?

Quantity of cement = 1/13 × 1.54 m3 × 1440 kg/m3 = 170 kg, no of bag cement for 1m3 m7. 5 concrete = 170/50 = 3.4. If rate of cement = INR 400 per bag, then cost of 3.4 bags cement = 3.4 ×400 = INR 1360.

Christofer Weber

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How many 80lb bags of concrete do I need for a 10x10 slab?

For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags. If we add an extra 10%, that's an extra 8 60-pound bags or 6 80-pound bags. Whatever the size of your project, use the formula above to calculate how much concrete you'll need!

Mạnh Quyết Nguyễn

Guest

How much cement and ballast do I need?

Mixing 1 part cement to 6 parts ballast creates concrete suitable for driveways, paths and patios, and increasing the ratio to 1:8 gives foundation-strength concrete..