I've just been putting posts in using that stuff from B&Q. I didn't put the posts in that deep, about 50 cm and it took 2 bags. I am also not sure how good it works if you follow the instructions and fill the hole 1/4 with water and then pour the postcrete in, then add some more water from the top once you emptied the whole bag.

Concrete Bags Regular concrete mix sold at lumberyards and home centers comes in different sized bags ranging from 40 to 80 pounds. An 80-pound bag yields approximately 0.60 cubic feet of concrete. 60-pound bags yield 0.45 cubic feet and 40-pound bags just 0.30 cubic feet.

You now have the “cubic feet” of concrete required. Step 7 All you need to do now is determine how many bags of Ready-Mix Concrete it will take to fill your slab. An 80 pound bag will fill 2/3 of one cubic foot of slab area. That is about 0.67 cubic feet. Divide the final answer you got up in Step 5 by 0.67.

how many bags of 60# ready mix concrete would i be needing if i want 5'x5' area that is 2" thick? I'm new to this, and have read a quick guide on what portland concrete is on a concrete guide, but I still do not know much about the quantities I should be using. thanks!

Currently doing fence posts and some small concrete pads around the house so I need to self mix the concrete I keep searching for this type of thing on the internet: Here is a good example of what is required from Boral’s Site From my learnings: 1 Cement 2 Sand

Quikrete 60 lb. Concrete Mix is ideal for both structural and non structural applications over 2 in. thick. This ready to use product contains a blend of Portland cement, sand, gravel, and other approved ingredients. Quikrete 60 lb. Concrete Mix is perfect for projects ...

Refer to table below that shows the coverage of different sizes of pre-mix bags. On average it will take 90x 40 lb bags, 60x 60 lb bags, or 45x 80 lb bags to fill one cubic yard of concrete. On average it will take 90x 40 lb bags, 60x 60 lb bags, or 45x 80 lb bags to fill one cubic yard of concrete.

Where a more structural concrete is required you may need to add neat cement to the premixed bag. As a guide, an addition of 1kg to 1.5kg per 20kg bag of Concrete Mix can be used to achieve around 32 MPa concrete (under normal conditions). preparation Formwork made from 25mm thick timber is commonly used to mould the concrete.

These Concrete Calculators work out the required cement and all-in ballast or cement, sharp sand and gravel required to complete a user defined volume of finished concrete. Both concrete calculators make an allowance for the fact that ballast etc losses volume when mixed to make concrete.

Find answers to your asphalt repair questions with our pothole repair calculator. We can help you determine the exact amount of pothole repair material you will need to ensure bond strength and ultimately maintain the integrity of the asphalt repair or concrete repair. Use the calculator below to find out how much material you need. Then get a ...

Calculate how many bags of premix cement is required to fill sonotubes. Easily calculate cement required. Just enter depth and diameter into the sonotube cement calculator. Sonotube Premix Cement Calculator Calculate the number of premixed bags of cement are required. Entry Form

These are the actual concrete mix ratios for 3000, 3500, 4000, and 4500 psi concrete that I use to pour concrete floors, patios, pool decks and more. I'll show you the actual concrete batch plant ticket with the cement, sand, and aggregate break downs for the yards we used.

QUIKRETE® 5000 Concrete Mix (No. 1007) is a commercial grade blend of stone or gravel, sand and cement specially designed for higher early strength. Ideal for cold weather application.

To get the approximate yield from the 80 lb. bag of premix concrete, you multiply the 1728 square inches times .6 (cubic feet) which equals 1036.8 cubic inches. To see how many 12"x12"x1/2" tiles you can make from that bag of concrete, you divide the total of 12x12x.5 which equals 72 square inches. (12x12x.5 = 72).

How much Ballast do I need to Mix Concrete? Previous Next. View Larger Image. Concrete is created using several ... 1 cubic metre of concrete at 3500 psi (25 MPa) can be readily created by mixing seven 50 kg bags of cement with 0.7 cubic metres of sand and 0.7 cubic metres of stone aggregate. Concrete of this strength is ideal for patio slabs ...

The number one question that we get on our hotline (1-866-Sakrete) is, “how much concrete do I need”? But let’s face it, unless you have a practical real world application for those boring math problems, you just don’t care enough to ...

Simply enter in the desired width, length, and concrete thickness. Press calculate and you have the answer! Learning how to calculate the amount of concrete needed is easy when using our concrete formula and online concrete calculator. If you are planning on buying bags of premix concrete then check out our Premix Concrete Calculator (how many ...

To arrive at different quantities of concrete ingredients, the Dry loose bulk density of materials plays important role as concrete ingredients are batched loosely in volume proportion. How to determine dry loose bulk density of materials? a. Cement Cement being a factory made product and packaged in Bags weighing 50 kg each,its DLBD more or … What is the procedure to calculate cement bags …

Calculate Number of Bags of Pre-Mix Concrete Mix for Round and Square Footing Holes and Small Concrete Slabs blocklayer .com Directory Inch or Metric Home

You will need approximately: 70# / 80# Bags (70# bags for *Type N and 80# bags for Premix Type S) We recommend rounding up on all approximations, to ensure you have enough material. * When using non premixed mortar, like Type N, M or S masonry cement, approximately 18 shovels or 200 lbs of fine masonry sand will be needed.

Each 80-pound bag of ready-mix concrete requires about 6 pints of water, for a total weight per bag of 86.25 pounds. Five bags of ready-mix produces 3 cubic feet of wet mix that weighs approximately 431.25 pounds. Check the mixer operation manual for maximum weight limits to be sure you're working within the safe limits of the machine.

Packaged concrete is a premixed combination of cement, sand and gravel. It is readily available at most home and garden centers and often sold in 60-pound bags. To prepare packaged concrete mix, all you have to do is add water. Determining the exact amount of water, however, is not such a simple process.

QUIKRETE® CONCRETE MIXES CALCULATOR: Enter the size of the slab you want to build in square feet. The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Concrete Mix you need to build a 4″ or a 6″ slab. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.)

Bags of pre-mixed Concrete Mix needed per cubic metre. There are about 2,200kg of Concrete Mix per cubic metre of concrete. Therefore, to make up one cubic metre of concrete you would need about: 110 x 20kg Concrete Mix bags. 108 bags are quoted by Boral Australia, for 1 cubic metre (m³) of finished concrete.

6-9-2019 · How to Order Ready Mix Concrete. A giant ready-mix concrete truck driving up to your house can be intimidating, but it doesn't have to be if your site is prepared, you have all your tools at hand, and you've ordered the right amount....

Oct 26, 2011 · Yeah it's 84 bags! That is alot of bags and would be very hard to mix all of that in one pour. You have to place all the concrete at one time before it starts to set up. You would need a lot of people helping you. You can't stop to rest and you would be tired after mixing a few bags.

You will need 60 bags of 60 pound premixed concrete to make 1 cubic yard. ... Hence the answer for how many bags of cement to make 1 cu m of (1:2:3) concrete is 20 20kg bags. These answers are not ...

If concrete is needed for a project and getting in a truck full of premix isn’t practical, then it will need to be blended on site. So what does that entail? Well, the good news is that at Centenary Landscaping Supplies, we have sand/gravel mixed to the correct ratio ready to go.

Free online concrete calculator for your construction projects. Calculate the required weight and volume of readymix concrete you need for your wall, column, steps, slabs, footings, and others. Easy to use calculator for how much concrete you need in cubic feet, cubic yards, cubic meters, tons, tonnes, as well as bags of concrete of different sizes.

3-10-2006 · A 60 lb bag provides about 0.45 cubic feet. Or for reference, there are 3600 lbs of dry concrete mix in a cubic yard, so divide 3600 by the size of the bag to get how many you need. 80 lb bag = 45 bags 60 lb bag = 60 bags You may look into having pre-mixed concrete delivered if you have a large area, it may be cheaper, and a lot less work.

Ready-mixed concrete is sold by volume measured in cubic yards. If you can determine the area of your concrete project (length x width for rectangular projects) and know the thickness of the slab, you can use the information in the Concrete Volume Calculator below to determine how much concrete you need.

Bricks, blocks and mortar (sand & cement) calculator. This Calculator/Estimator will provide the quantities of bricks, blocks and mortar (sand & cement) required for a given area for metric bricks (single & double skins) as well as 100mm, 140mm & 215mm blockwork. It will also provide approximate brick work prices.

Oct 25, 2017 · the nominal mix is given 1:2:4(Cement:FA:CA) Loss of cement is considered as 2% Output of mix is considered as 67% To achieve 1 cum output, we need 1/0.67 = 1.49 say 1.50 cum dry mix.

Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. The premix concrete calculator will tell you exactly how many 40 lb, 60 lb, or 80 lb bags of concrete that you will need. It’s really that simple – try it and then be sure and try out all of our calculators!

Just enter in the desired height, width, and thickness of your concrete project and then press the calculate button. The premix concrete calculator will tell you exactly how many 40 lb, 60 lb, or 80 lb bags of concrete that you will need. It’s really that simple – try it!

I am doing a concrete slab but how do i figure out how many bags of portland cement, sand and gravel do i need. Can someone please tell me. the slab will be 9 x 13 and 5 inches thick. And i dont want to use the ready mix concrete. i would like to do it the old fashion way.

How To Use Prepackaged Concrete Mix (with Pictures) - ratio is determined by the volume of Portland cement in the bag, not bag gross weight. The ratio is usually 1 gallon (3.8 L) per 80lb bag. But of a 5 gallon (18.9 L). pail is hard to mix with 80lb of Portland cement, aggregate and admixture by hand shovel in a wheelbarrow.

Working off Jawsnzar numbers- bump it to 4 burrows= 320kg, plus 8 bags cement=160kg, which gives 4:2 mix and 480kg of concrete Either way you are better off making too much concrete than not enough. Making two pours for a slab is not ideal, because you have an interface where the second pour has to stick to the first pour.

Running out of mortar mix after you've started your project can affect both your schedule and the quality of your work, while stocking up on too much mortar is a waste of money. Before you begin laying brick or block, calculate how many bags of mortar mix you'll need based on the size and scope of your project.

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