how to figure for aggregate base course

Measure the length and width, in feet, of the area to be covered. Multiply the length by the width to get the square footage. Measure the depth you want, in inches--how high you want the layer of crushed granite or other rock.

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What are aggregate base courses?

For this reason, aggregate base courses are usually a graded mixture of soil elements (meaning they contain various sized particles) that bind crushed stone or gravel in a matrix.

How do I work out the total cost of the aggregate?

If you know the price per unit mass/volume of the crushed material, then the calculator can also work out the total cost of the aggregate using the formula: Of course, you might not know the price per unit mass/volume. $$Price\,per\,unit\,mass = {Total\,cost\,of\,aggregate \over Weight\,of\,aggregate}$$

How to evaluate the quality of aggregates used in construction?

However, it is to kept in mind that apart from gradation, the quality of aggregates used (evaluated through bulk density, water absorption, etc.) should also be as per standard specifications. It is important to know that the compliance of a sample’s gradation with the standard is assessed through limiting gradation curves provided by the standard.

How to grade a coarse aggregate with size number 57?

A coarse aggregate is said to be graded with size number 57 if it is sieved through a set of sieves in the size range of 1 in. to No.4 (1 in., % in., 1/2 in., % in., and No.4) The sieving results (i.e. the percentages of materials by weight passing through the various sieves) are plotted to obtain the grading curves

What is aggregate base course?

Aggregate Base is used as the base course under asphalt pavement roadways, under concrete slabs and structural foundations, and as backfill material for underground pipelines and other underground utilities within a roadway.

How do you calculate road base?

If the area you're covering is rectangular, the calculations are quite straightforward: multiply the length by the width. For irregularly shaped areas, divide it into regular shapes such as triangles, rectangles, and circles. Find the area of those shapes with their respective formulas and then add them together.

How is medical aggregate calculated?

Marks in Entrance Test x 1100 x 0.50 = 50% Admission test. 50% of HSSC + 50% of admission = aggregate marks. Aggregate percentage = aggregate mark x 100....Particularly, the general Mark calculation in MCAT is the following:Marks in HSSC/ 1100 x 50.Marks in Entrance Test/ 200 x 50.Add values from HSSC and TEST results.

How do you calculate the base of a rock?

How to Find Cubic Yards of Base MaterialMeasure the length and width of the patio in inches.Multiply the length and width to find the area in square inches.Multiply the area by the gravel depth in inches to find the volume in cubic inches.Divide gravel cubic inches by 46,656 to find the amount of gravel in cubic yards.More items...

How much aggregate base do I need?

Length in feet x Width in feet x Depth in feet (inches divided by 12). Take the total and divide by 21.6 (the amount of cubic feet in a ton). The final figure will be the estimated amount of tons required.

How do you calculate gravel base?

Gravel Calculation Normally you want a base layer of gravel about 4-inches deep. Four inches is one-third of a foot, so multiply the square footage by one-third to find the cubic feet of gravel you need. For a 120-square foot patio that works out to 40-cubic feet of gravel.

How do you calculate aggregate marks?

Take total of all marks ontained in all semesters and divide it by overall total marks of semesters to arrive at aggregate percentage. To arrive at aggregate marks simply in each semester simply add total marks in all semesters and divided by tital semester.

How is matric aggregate calculated?

An aggregate calculator is a tool that calculates the aggregate of Entry test marks, Fsc Marks and Matric Marks....there can be 2 formulas, one is the sum of:10% Matric Marks.40% Fsc Marks.50% entry test Marks.

How do you calculate aggregate of Mdcat 2021?

Steps to Calculate Aggregate for MDCATMarks obtained in HSSC /Equivalent x 1100 x 0.50 = 50% of HSSC/Equivalent. ... Marks obtained in Entrance Test / SAT II / MCAT x 1100 x 0.50 = 50% of Admission Test.Aggregate Marks x 100 = Aggregate Percentage. ... 980 x 1100 x 0.50 = 490. ... 970 x 1100 x 0.50 = 485.

How many yards of base rock do I need?

The formula: Number of Cubic Yards = Length (in feet) Width (in feet) Depth (in feet) ÷ 27. Simply multiply the three dimensions together to find the number of cubic feet, then divide by 27 to find the number of cubic yards.

How do I calculate how much stone I need?

Multiply the length (L), in feet, by the width (W), in feet, by the height (H), in feet, and divide by 27. This number is how many cubic yards of crushed stone you need.

How many square feet of gravel do I need?

Multiplying the area to be covered by the desired depth yields the volume of gravel you will need. Once the volume of gravel necessary is known, the known density of the given type of gravel can be used to calculate the mass of gravel needed to complete the project.

What is aggregate base course?

Aggregate Base Course often referred simply as ABC, has certain desirable properties. Base Course in pavements refers to the sub-layer material of an asphalt roadway and is placed directly on top of the undisturbed soil (Sub-Grade) so as to provide a foundation to support the top layers of the pavement. It is typically made of a recipe of different ...

What is aggregate made of?

Aggregate is made from quarried rock, recycled asphalt, or concrete. Aggregate Base is used as the base course under asphalt pavement roadways, under concrete slabs and structural foundations, and as backfill material for underground pipelines and other underground utilities within a roadway.

What is a sub base?

The Sub-Base is a layer of small chipped aggregate and dust, typically Crushed Fines, which is laid above the ABC on driveways or heavy traffic areas . The thickness of sub-base can range from 1″ to 2″ inches on light weight traffic areas like pathways and paver patios above the sub-grade when a ABC is not required,

What is the grade of coarse aggregate?

A coarse aggregate is said to be graded with size number 57 if it is sieved through a set of sieves in the size range of 1 in. to No.4 (1 in., % in., 1/2 in., % in., and No.4)

What is FM in aggregate?

FM is an index of the fineness of an aggregate – the higher the FM, the coarser the aggregate. The FM can be looked upon as a weighted average size of a sieve on which the material is retained, the sieves being counted from the finest. Different aggregate grading may have the same FM.

What proportions should be changed to produce workable concrete?

Mixture proportions should be, changed to produce workable concrete if wide variations occur in the coarse-aggregate grading. The maximum size of coarse aggregate used in concrete has a bearing on economy. Usually more water and cement is required for small-size aggregates than for large sizes.