"SECTION 304 Payment will be made at the unit price bid for seventy-five (75) percent of the quantity. The balance of the quantity will be paid for after the final finishing to the required tolerance and just prior to the placing of the next course. 40 Payment will be made under: Item No. Item Pay Unit 304.01 M Subbase Course, Type 1 Cubic MeterDensity of Construction Materials in kg/m3 and lb/ft3Density of Different Construction Materials Density of construction materials are its mass per unit volume of materials. It is expressed in kg/m3 or lb/ft3 and shows compactness of building material. Density is also called as unit weight of substance. Base course The base course or basecourse in pavements is a layer of material in an asphalt roadway, race track, riding arena, or sporting field.It is located under the surface layer consisting of the wearing course and sometimes an extra binder course.. If there is a sub-base course, the base course is constructed directly above this layer.

Gravel Cost Per Square Foot. Gravel costs $0.50 to $2.50 per square foot on average when covering an area 12 deep (a cubic foot), depending on the type. Base gravel, crusher run, slate, shale, and crushed concrete are the cheapest at $0.50 to $1.50 per square foot, while colored and decorative gravel run $3 per square foot.. Return to Top. Gravel Delivery CostSPECIFIC GRAVITY OF COARSE AGGREGATE AASHTO T 85The ratio of the weight in air of a unit volume of aggregate at a stated temperature to the weight in air of an equal volume of gas-free distilled water at a stated temperature (Figure 2). This unit volume of aggregates is composed of the solid particle, permeable voids, and impermeable voids. Gsb = A / (B-C) Where: A = Oven dry weight.DETERMINATION OF RODDED UNIT WEIGHT OF COARSE AGGREGATE Oct 10, 2015Rodded Unit Weight of Coarse Aggregate Purpose Determination of the unit weight of coarse aggregates in a compacted condition. This test method is applicable to aggregates not exceeding 15 cm (6 inches) in nominal size. The unit weight so determined is necessary for the design of a concrete mixture by the absolute value method. Equipment [](PDF) CONSTRUCTION OF SUBGRADE, SUBBASE AND BASE LAYERS Sieve Per cent by weight passing the sieve Grading I Grading II Grading III 75 mm 100 – – 53 mm 80 – 100 100 100 26.5 mm 55 – 90 70– 100 55-75 9.5 mm 35 – 65 50 – 80 - 4.75 mm 25 – 55 40 – 65 10 – 30 2.36 mm 20 – 40 30 – 50 - 0.85 mm - - - 0.425 mm 10-15 10 – 15 - 0.075 5 5 5 Gradation of Granular Sub-Base material IS.CW 3110 R21 SUB2.2 Base Course and Sub-Base Materials 2.2.1 Base course and sub-base materials shall conform to the following requirements: 2.2.1.1 Base course and sub-base materials will be of a type approved by the Contract Administrator. 2.2.1.2 Base course and sub-base materials shall be sound, durable particles produced byCubic Yards To Tons CalculatorThis is because the cubic yard is a unit of volume and the ton (or tonne) is a unit of weight. To convert between the two, you'll need to know the density of the material. To give a crude example, the weight of a cubic yard of feathers will be much lighter than a cubic yard of sand. Gravel (dry, 1/4 to 2 in) Gravel (wet 1/4 to 2 in) Gravel Crushed Rock (11-1/4 minus crushed rock, also known as crushed surfacing base course (CSBC), packs tightly and holds in place, making it the primary base material for heavily trafficked roadways. CSBC also adds stability to bridges and muddy or wet areas. This CSBC meets the Washington State Department of Transportation (WSDOT) specifications for base course.DIVISION II MATERIALSCrushed gravel shall consist of particles of which at least 90 percent by weight of the material retained on the No. 10 sieve shall have at least one face fractured by artificial crushing. Type II shall consist of gravel, stone, or slag screening; fine aggregate and crushed coarse

- Freeze thaw maximum of 42 percent loss, by weight. [3] Required as specified for the individual component materials defined in columns 2 - 6 of the table before blending. [4] For base placed between old and new pavements, use crushed stone, crushed gravel, or crushed concrete with a plasticity index of 3 or less.Calculating Cubic Yards vs. Tons 2. A ton is a measurement by weight. 3. A "/" sign means 'per,' so 1.5 TONS/CY reads 1.5 TONS per Cubic yard which simply means there are 1.5 tons per (for) every cubic yard of material. Fortunately, a cubic yard of material has a conversion factor (unit weight) so a cubic yard can easily be converted to a ton or vice versa.Crushed Stone Ore The tonnage of stone required for a given area varies by stone type, depth, and compaction efforts. The calculator provided on our website is based on placement of compacted base course. Other types of stones vary in unit weight and therefore will require more or less tonnage per volume of space.Crushed Rock (11-1/4 minus crushed rock, also known as crushed surfacing base course (CSBC), packs tightly and holds in place, making it the primary base material for heavily trafficked roadways. CSBC also adds stability to bridges and muddy or wet areas. This CSBC meets the Washington State Department of Transportation (WSDOT) specifications for base course.AGGREGATE BASE COURSE DENSITY The most recent Aggregate Base Course (ABC) unit weight test results performed by the NCDOT MT Soils lab can be queried using this page. Use the drop down boxes to select the company and/or quarry submitting the sample. To see the results of all tests, click on the Search button without specifying a company or quarry.

Base (Dense-Graded Base Coarse) Common Sizes. 1-1/2 and smaller; Other DOT sizes available Designations. Base, Base Course, Graded Base Course (GAB), Aggregare Base Course (ABC) Common Applications. Foundations for Highways and Structures Road Shoulder Stabilization Unpaved Road StabilizationDETERMINATION OF RODDED UNIT WEIGHT OF COARSE AGGREGATE Oct 10, 2015Rodded Unit Weight of Coarse Aggregate Purpose Determination of the unit weight of coarse aggregates in a compacted condition. This test method is applicable to aggregates not exceeding 15 cm (6 inches) in nominal size. The unit weight so determined is necessary for the design of a concrete mixture by the absolute value method. Equipment []3 Aggregate Properties Density is the weight per unit of volume of a substance. Specific gravity is the The best aggregates to use for strength are crushed stone or crushed gravel. Crushed aggregate have irregular, angular particles that tend to interlock when load; help from the underlying base courses is required. In addition to

.08 to 1.0 (fine to medium gravel). Granular soils are known for their water-draining properties. Characteristics Sand and gravel obtain maximum density in either a fully dry or saturated state. Testing curves are relatively flat so density can be obtained regardless of water content. The tables on the following pages give a basic indication Base Aggregate Calculator Unit: Number: Required Data Entry Width Feet Length Feet Thickness Feet Inches Material Sub Base Stone Drainage Stone Custom Density Material Density Pounds Per Cubic Yard Calculated Results Total Tons Of Material Required Updated 8.15.11 Leave us a question or comment on Facebook . Search or Browse Our Site Mass, Weight, Density or Specific Gravity of Bulk MaterialsAs specific gravity is just a comparison, it can be applied across any units. The density of pure water is also 62.4 lbs/cu.ft (pounds per cubic foot) and if we know that ammonium nitrate has a sg of 0.73 then we can calculate that its density is 0.73 x 62.4 = 45.552 lbs/cu.ft.SECTION 301 TRAFFICWet the subgrade or previous base layer as directed before placing the base material. 302.03.04 Compacting. A) Control Strips. Before constructing the base, complete a control strip to determine the level of compaction necessary to achieve the target density for the remaining base course. Construct additional control strips whenever a change is

weight of the aggregate required to fill the measure. (5) Repeat the above steps until a total of three weight determinations are obtained, which do not differ by more than 1 %. F. CALCULATIONS. 1.Calculate the average net weight of aggregate required to fill the measure. 2.Calculate the unit weight of the aggregate from the following formula:Aggregate Base Course 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.ITEM PAt least 75% by weight of material retained on the No. 4 sieve shall have one or more fractured faces, when tested according to WAQTC FOP for AASHTO TP 61. If necessary to meet this requirement, or to eliminate an excess of fine, uncrushed particles, the gravel shall be screened before crushing. 208-2.3 UNCRUSHED AGGREGATE SURFACE COURSE.Long term performance of gravel base course layers in Dec 01, 2018A sodium sulfate soundness test is specified as a standard acceptance test for base layer gravel with maximum loss by weight of 18% for dense graded bases and 12% for open graded bases (Section 301.2.4.5 of Wisconsin Standard Specifications for Highway and Structure Construction ). In order to evaluate the durability of the investigated base 3.01 AGGREGATE BASE COURSE Specifications for Highway Construction. All aggregate base courses shall be crushed limestone. 3.01.03 Maximum Unit Weight Maximum unit weight, when used as a measure of compaction or density of cohesive materials, including aggregate bases and aggregate surfaces, having a loss by washing greater than 10