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Jun 10, 2018 For spheres, use the equation 4/3 pi R3. To calculate the volume of a sphere in cubic yards, all you need to know is its radius - the distance from its center to its outside edge - in yards. Simply cube this number (multiply it by itself two times), then multiply it by 4/3 pi to get the sphere's volume in cubic …

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### 3. CALCULATION OF MACHINE RATES

3.1 Introduction. The unit cost of logging or road construction is essentially derived by dividing cost by production. In its simplest case, if you rented a tractor with operator for $60 per hour - including all fuel and other costs - and you excavated 100 cubic meters per hour, your unit cost for excavation would be $0.60 per cubic meter.

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### Metric calculator for concrete cement sand gravel etc

Both of these concrete calculators make an allowance for the fact that material losses volume after being mixed to make concrete. Calculator are provided for a general mix and a paving mix, the different ratio of materials are: General mix - 1:5 cement:all-in ballast or 1:2 :3 cement:sharp sand:gravel. Paving mix - 1:3 cement:all-in ...

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### Construction Converter The Calculator Site

Construction Converter. Use this construction conversion tool to convert between different units of weight and volume. Please note that this type of conversion requires a substance density figure. A list of some common construction density approximations is provided below. Please enter a density figure, select a unit to convert from and to ...

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### 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 ...

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### Pyramid Calculator Dimensions Angles Volume Animated

Select output Fraction Precision, Decimal Inch or Metric mm. Select and Re-Calculate to display. Fraction Precision Set 1/8 1/16 1/32 1/64 Decimal Inch Metric

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### Triangle Area Calculator

Step by step calculation. formula to find area = (1/2) b h. = (1/2) x Base x Height. substitute the values. = (1/2) x 18 x 12. = 108 cm2. The area of a triangle may required to be calculated in SI or metric or US customary unit systems, therefore this triangle area calculator is featured with major measurement units conversion function to find ...

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### Liters To Metric Tons Converter The Calculator Site

Convert between liters and metric tons using this calculator tool. As explained in the article how to convert from volume to weight, the metric ton is a unit of weight and the liter is a unit of volume. To convert between the two, you need to know the density of the substance that you are trying to convert. A list of approximations is available.

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### Guide to Laying Pavers Boral

1/2 x base (m) x height (m) = area (m ) eg. 1/2 x 4m x 3m = 6 sq. metre 3. 3m x 4m = 12 sq.metres Total = 35 sq.metres Figure 2 Calculate the area Figure 1 Site layout & paving steps Illustration courtesy of Cement & Concrete Association Australia For odd shaped areas, break into sections. 1. 5m x 3m = 15sq.metres 2. 4m x 2m = 8 sq.metres

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### Aggregates Morris and Perry

1 m3 = 1.5t – 2.2t of crushed stone depending on the grading and degree of compaction. 2.1 tonnes of Type 1 = 1m3; 1m3 of well compacted scalpings is heavier than 1m3 of 75mm clean stone, (consider the amount of air spaces!) 1 inch = 2.54cm or 0.0254m 1ft = 0.3048m; 1 cubic …

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### How To Size An Air Receiver Tank Sizing Formula amp More

However, smart operators may choose to use an air receiver tank to give their compressor a little boost for higher CFM tools. For example, if an operator routinely uses a 1” impact wrench that requires 40 CFM but only has a 30 CFM air compressor, he may choose to add a 12-gallon air receiver tank to compensate for the difference.

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### Crusher Efficiency Calculations

Sep 15, 2014 For the 1-in. screen below the roll crusher the capacity has no correction factor and the area needed is 32/2.1 = 15.2 sq ft. To handle the output from a 40 x 24 roll crusher the screen will have to be at least 24 in. wide. Perhaps it will be more effective to use one continuous screen of at least 20.1 + 15.2 = 35.3 sq ft.

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### AGGREGATE CALCULATOR How Much Aggregate Do I Need

Jul 07, 2019 Crushed stone - 100 lb/ft ... Price per unit of volume: yd . cubic yards (yd ) cubic feet (ft ) cubic inches (in ) cubic centimeters (cm ) cubic meters (m ... See below for three full examples detailing how the calculator gives you the volume, weight and cost. Otherwise, simply enter your measurements and correct units in the calculator ...

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### Correct Ratios for Concrete Mixes

Mar 13, 2013 To make 1 cubic metre of 15 Mpa concrete you will need to mix 5 1/2 bags of cement with 0,75 cubic metres of sand and 0,75 cubic metres of stone. 25 Mpa This is a medium strength concrete and is suitable for reinforced foundations, light-duty house floors, patio slabs, footpaths, steps, driveways and garage floors.

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### Rate Analysis of Excavation in Earthwork Calculate

Dec 18, 2014

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### Tank Volume Calculator Volume of Water Calculator

The below given is the online volume of water calculator cylinder to calculate the liquid volume filled in a vertical, horizontal, rectangle, horizontal oval, vertical oval, horizontal capsule and vertical capsule cylinder. Just choose the cylinder type and fill the requested values in the liquid volume calculator to know the total volume and water-filled volume inside the cylinder.

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### Tonnage Calculator Robinson Quarry Masters Limited

Tonnage calculator. Use our calculator to estimate how much you need. Simply enter in the dimensions of the area you need to fill and hit calculate. You can then enter your details to get a quotation by email - or if you are in a real hurry just give us a call and order over the phone. Sales: 028 2583 1245.

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### What should the ratio of crushed rock and sand for a paver

I used 1 inch diameter pipes to give me the 1-inch depth for the leveling sand. Put two pipes down on the compacted paver base parallel to each other and then pour the sand on top. Then pull a 2x4 over the pipes to level the sand. Remove the pipes and then fill in the indentation by hand. Now lay your pavers (or patio stones).

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