how much sand and gravel make m concrete

How to Mix Cement: 11 Steps (with Pictures) wikiHow

Mar 29, 2019· To mix cement, start by combining 1 part cement, 2 parts sand, and 4 parts gravel in a large bucket or wheelbarrow. Next, make a small crater in this mixture and add half a bucket of water. Mix the cement with a shovel and add more water until it's formed a smooth paste similar to peanut butter.

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Sand Calculator Omni

The first step is establishing the volume of sand needed. It is equal to the volume of excavation, and you can do it in a following way: Determine the length and width of a cuboidal excavation. For example, we can assume an excavation of length L = 12 yd and width b = 3 yd. Calculate the area of the excavation,

How to Determine How Much Gravel for a Concrete Walkway

Remove the grass from the area and excavate the soil to a depth of 6 inches from ground level. This leaves a 2-inch depth for gravel and a 4-inch depth for the concrete. 2. Measure the length and width of your walkway to determine the square footage. Multiply the length times the width.

How to Make Cement And Concrete From Scratch

To make concrete though which will greatly extend the volume produced you mix in gravel or sand or crushed brick. Proportions are an endless subject of debate but the formula of 1 part cement, 2 parts sand and 3 parts gravel by volume is a good starting point.

How many bags of cement, sand and gravel do i need for 9 x

Jul 26, 2010· t takes approx. 5 Bags of Portland cement, 8 cubic ft of sand, and 20 cubic ft of gravel to make approximately 1 cubic yard (27 cubic feet) of concrete. The math does not appear to work because the finer powder of the Portland cement fills voids in the mixture of sand and gravel.

why is it important to have gravel under a concrete slab

Mar 24, 2010· Gravel on the other hand is used for softer ground surface areas like damp areas and ironically beach lines (if you build on sand in a sandy area, too much sand may move from either side of slab and crack it) as so there is a solid foundation as to build your slab on. generally 4 inches is a good thickness..hope this helps

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Concrete Calculators cement, sand, gravel and all-in

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.

mortar What's the best ratio for sand-only concrete

1 Answer. Generally, the 1pt cement : 2pt sand ratio is best and will have a 3500 psi compression stress. A 1:3 ratio will have less than 3000 psi. Gravel can actually strengthen the mix up to 3 parts. The mix of choice (concrete) is 1pt cement :2pt sand : 3pt gravel, because it's the best/hardest (for the money).

What Are the Mix Ratios for Cement and Sand

Concrete 1 part cement, 2 parts concreting sand and 3 parts 20 millimeter aggregate. Mortar 1 part cement, 4 to 5 parts building sand. Alternatively, one can also use 1 part cement, 1 part lime and 4 to 5 parts building sand. Screed 1 part cement and 3 to 5 concreting sand.

Concrete Mix Ratio and How to Mix Concrete Including a

Concrete is a mixture of cement, sand (fine aggregate), small stone or gravel (coarse aggregate) and water. It has many applications, from fence posts to motorway bases and, because of this, there are many different concrete mix ratios that the constituents can be mixed to with each resulting in a different strength of concrete.

Metric calculator for concrete cement, sand, gravel etc

These Concrete Calculators provide the required quantities of cement and all-in ballast or cement, sharp sand and gravel required to give a defined volume of finished concrete. Both of these concrete calculators make an allowance for the fact that material losses volume after being mixed to make concrete.

How much cement would I need?

4 / 5 12.375 = 9.9 cubic yards of sand/gravel. I hope your bags of cement have a volume measurement on them. If not then there is a web site in the UK that has the density of Portland Cement as 1506 kg/cu.m. Write back if you need to use this density and you have trouble with the conversion.

gravel under concrete slab? is it absolutely required

At the end of the day, it is just much, much easier to pour 5.5" thick of concrete, but I do think 1.5-2" of gravel under it is a good idea, just a much more difficult bit of logistics. Storyteller May 2 '17 at 4:45

Calculation of Concrete zhitov.ru

Proportion of sand depends on its origin, such as river sand is heavier than a career. 1 cubic meter of sand weighs 1200-1700 kg on average 1500 kg. Gravel and crushed stone. According to various sources, the weight of 1 cubic meter ranges from 1200 to 2500 kg depending on the fraction (size).

How many bags of cement, sand and gravel do i need for 9 x

Jul 26, 2010· t takes approx. 5 Bags of Portland cement, 8 cubic ft of sand, and 20 cubic ft of gravel to make approximately 1 cubic yard (27 cubic feet) of concrete. The math does not appear to work because the finer powder of the Portland cement fills voids in the mixture of sand and gravel.

Adding Cement Mix to Gravel Driveway | Hunker

Sweep away any loose gravel rocks. The gravel should be firmly tamped into the ground. For a driveway cement addition, the use of forms is mandatory. Make sure the ground is completely level. Add firmly tamped dirt or sand to low areas. Add 4 inches of sump and 1 inch of aggregate before adding cement.

Does anybody use sand as a base before they pour concrete

Sand needs to remain damp as well as other material before placement of the concrete. If you want to build a road, use gravel, but this does not mean you will not have issues. No one can predict the outcome of the harding of concrete.

How Much Base Material Do I Need for Walkways, Patios and

For sidewalks and patios or any other light duty areas you will only need a 4 inch base of 3/4 inch quarry process or RCA beneath a 1 inch layer of concrete sand. To correctly figure out how much base material that you will need you will first need to know how each material is measured.

How to Figure Sand Gravel Cement in a Cubic Yard of

The density of sand is 100 pounds per cubic foot, and sand is also usually sold by weight. Divide the gravel proportion by A. The result is the percentage of gravel you need in your mixture. Multiply 40 1/2 feet by the percentage of gravel you need to get the volume of gravel you need, in cubic feet.

Gravel Calculator how much gravel you need in tons

A cubic meter of typical gravel weighs 1,680 kilograms 1.68 tonnes. A square meter of gravel with a depth of 5 cm weighs about 84 kg or 0.084 tonnes. The

Concrete Mix Ratios Cement, Sand, Aggregate and Water

Concrete mix ratio of 1:3:3 On mixing 1 part cement, 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi. On mixing water with the three ingredients, a paste is formed that binds them together till the concrete mix gets hardened. The strength concrete is inversely proportional to the water/cement ratio.

Sand Calculator how much sand do you need in tons

A cubic meter of typical sand weighs 1,600 kilograms 1.6 tonnes. A square meter sandbox with a depth of 35 cm weighs about 560 kg or 0.56 tonnes. The numbers are obtained using this sand calculator.

Sand, Gravel and Stone Calculator Concrete, Sand, Stone

NOTE: This Calculator should be used as an estimating tool ONLY. Chaney Enterprises is not responsible for any discrepancies in material based on calculations made with this application.

Sand and Gravel Prices: Cost Guide braenstone

These factors alone help make sand and gravel prices very reasonable, making them the perfect choice for any budget. But how much can you expect to spend on sand and gravel for your upcoming project? Take a look at what impacts the pricing of these materials, why and how you'll get your money's worth and where to get the best deals.

How To Find The Right Concrete Mix The Home Depot

To make standard concrete, mix 1 part Portland cement, 1.5 parts gravel and 1 part sand with 0.5 parts water. Tip: Use water that is clean and free from acid, alkaline, sulfate and oil. Mixing concrete in a wheelbarrow provides an easy way to move it where you need it.