Grade the graded aggregate base, subbase, or shoulder material as follows Sieve Size Percent Passing By Weight Group I Aggregates 2 in (50 mm) 100 1-1/2 in (37.5 mm) 97-100 3/4 in (19.0 mm) 60-95 No. 10 (2 mm) 25-50 (Note 1, 2 and 3) No. 60 (250 m) 10-35
TABLE OF RECOMMENDED UNIT WEIGHTS FOR ESTIMATING QUANTITIES OF BITUMINOUS CONCRETE AND DENSE-GRADED AGGREGATE BASE Aggregate Limestone Calcareous* Siliceous Slag Type Gravel Gravel Use Bituminous D.G.A. Bituminous Concrete Bituminous Concrete Base Concrete Lbs .per cu.ft. 146.7 145.0** 145.3 142.7 - Lbs.per sq.yd.
Dec 15, 2018 The results of the laboratory compaction test for all investigated base aggregates are depicted in Fig. 2.For base layer aggregate of CTH B (discussed as an example), the maximum dry unit weight ( dmax) is 21.46 kN/m 3 (136.6 lb/ft 3) and the corresponding optimum moisture content (w opt) is 8.75%, which are within typical values for base aggregate materials .
DETERMINING UNIT MASS (WEIGHT) OF AGGREGATES TXDOT DESIGNATION TEX-404-A CONSTRUCTION DIVISION 4 6 LAST REVIEWED SEPTEMBER 2014 Note 1Use standard gradation when dry loose unit mass fails the specification requirement at received gradation, and note this on the test report. 4.1.3.5 Place the sample on a smooth, flat surface and mix ...
Jun 09, 2005 Most pavers use 110 pounds per square yard per inch of thickness (or 146.67 pounds pcf) for estimating graded aggregate base. This seems to work well. Talk to your local quarry sales department. They should be able to give you densities for your region. Our quarries publish tables indicating compacted densities of all their products.
Where specified for payment by the ton (megagram), graded aggregate base, subbase or shoulder materials are measured in tons (megagrams), mixed and accepted. When hauling material to the roadway, the actual weight of each loaded
weight of rollers to compact the material to the required density. Compact the aggregate base course in-place to a field target density of at least 100 percent and a lower specification limit (L) of at least 97.0 percent of the maximum density of laboratory specimens prepared from samples of base course material delivered to the job site.
Construction Aggregate Calculator. Enter the width, length, thickness, and product density and hit the Calculate button to calculate your estimate. If you do not know the product density, use the optional density estimator* or contact a local sales representative.
Large Open Graded Aggregate (AASHTO 1, Rip-Rap) yd x 1.4 Well Graded Aggregate (2A, 2RC) yd x 1.5 Driving Surface Aggregate or TSA yd x 1.55 Shale yd x 1.35 Topsoil /Dirt yd x 1.2 Quick formulas for estimating tonnage of DSA required For 6 loose lift compacted to 4 Rd Length x Rd Width x .029
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.
Graded Aggregate Base D 2940 6 12 - - - - - 15 50 - Bank Run Gravel Base D 2940 9 12 - - - - - - 50 - ... Fine aggregate conforming to M 6 may be used if the lightweight concrete does not exceed the maximum unit weight specified in the contract Documents. (g) Fly ash shall have a maximum of 12 percent loss on ignition.
Classification Of Aggregate Aggregate classification. The classification of Aggregate is generally based on their geological origin, size, shape, unit, weight, etc. Aggregate is the major ingredient of concrete. Aggregate is derived from rocks. They are broadly divided into two categories i.e. fine and coarse aggregates.
301 Base, Subbase, and Subgrade Aggregate 301.1 Description (1) This section describes requirements common to sections 305 through 313 and 350. Exceptions and additional requirements are specified in those sections. 301.2 Materials 301.2.1 General (1) Provide coarse aggregates from a department-approved source as specified under 106.3.4.2.
60 Compacted aggregate base will be measured by the ton (megagram) in accordance with 109.01(b). 301.10 Basis of Payment The accepted quantities of compacted aggregate base will be paid for at the contract unit price per ton (megagram), complete in place. Payment will
(by weight) of the material can be retained on that sieve, so 1/2021 Open graded (left) -versus - Well graded (right) Sample Aggregate Gradation for AASHTO 1. 100% in the 4 size means everything opening . 0-5% in the size means that a maximum of 5% at least 95% of the aggregate by weight must be larger than in size.
Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test ..... AASHTO T176 ... Dry Unit Weight (Loose Measure) ... patching, and base layer aggregate or soil, when processing crushed concrete coarse aggregate. Limit contamination particles retained on the -inch sieve to no greater than 3.0%, based on a ...
This script helps estimate the aggregate tonnage required for a particular job. To use this calculator, enter the appropriate width, length, and thickness of this application. Click on the measuring designator for thickness in feet or inches. Then, click on either Base Rock, Drain Rock, or a
The maximum unit weight is sometimes called the solid density. This value is based on the asphalt mixtures maximum specific gravity also known as the Rice value or G mm in Superpave. The maximum unit weight is determined by multiplying the Rice value by 62.4 pounds per cubic foot (PCF). For example, 2.500 is a typical Rice value. 2 ...
Dense-graded mixes are produced with well or continuously graded aggregate (gradation curve does not have any abrupt slope change) and are specified under the current Items 340 (Small Quantity) and 341. Typically, larger aggregates float in a matrix of mastic composed of asphalt cement and screenings/fines (see Figure 3-3).
Main Aashto 57 Stone Unit Weight Aashto 57 Stone Unit Weight
The Unit weight or bulk density of aggregate is the mass or weight of the aggregate required to fill a container of a specified unit volume. The approximate unit weight of aggregate that is commonly used in normal concrete work is between 1200-1750 kg/m 3 (75-110 lb/ft 3 ).
An analysis of the unit weights indicates that within the ASTM gradation band, if well-graded aggregates are compared, the unit weight of the gradation down-the-middle of the ASTM grading band is the highest. It also shows that moving to the coarse side of the ASTM gradation band reduces the density.
ensure that the new aggregate base material is uniformly mixed with the layer below. Compact each layer of aggregate base to at least 98% of the maximum unit weight at a moisture content no greater than optimum for aggregate base under hot mix asphalt (HMA) pavement. Compact each layer of
Coarse graded aggregates shall be compacted in accordance with 203.25. When specified, geotextiles shall be installed in accordance with 616.11. 301.07 Checking and Correcting Base The top of each aggregate course shall be checked transversely to the cross 80 section and all deviations in excess of 1/2 in. shall be corrected. If additional
Specific Gravity ratio of the weight of a given volume of material to the weight of an equal volume of water. Section 1 - 30 2.67 62 .4 167. . 167 1 167 Unit Wt of Quartz Unit Wt. Of Water Unit Wt. Of Material s.g. 3 pcf pcf s g pcf ft lbs Quartz 1 ft3 167 pounds
Key Features If the volume is unit then, Bulk Density Mass. Unit in kg/m 3 or lb/ft 3. In this definition, the volume is that contains both the aggregates and the voids between aggregates particles. The approximate bulk density of aggregate that is commonly used in normal-weight concrete is between 1200-1750 kg/m3 (75-110 lb/ft3) .
4-2601 General. This section provides guidelines for inspecting aggregate bases for work specified under Section 26, Aggregate Bases, of the Standard Specifications. Aggregate base is designated as Class 2 or Class 3. The Bid Item List and plans specify the class and unit of measurement, and the Standard Specifications and special ...
6 inches. Compact each layer of aggregate base to at least 98 percent of the maximum unit weight at a moisture content no greater than optimum for aggregate base under hot mix asphalt pavement. Compact each layer of aggregate base to at least 95 percent of the maximum unit weight at a moisture content no greater than optimum for aggregate base
From this equation we see that there is a limiting dry unit weight for any moisture content and this occurs when the voids are full of water. Increasing the water content for a saturated soil results in a reduction in dry unit weight. The relation between the moisture content and dry unit weight for saturated soil is shown on the graph in Figure 3.
Aug 06, 2012 According to Florin Perkins Quarry in Sacramento Ca. Aggregate Base Weight is 1.92 tons per CY and their Recycled Aggregate Base is 1.89 per CY. The weight is pretty consistent. These products are checked once a year.
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
Millions of tons of graded aggregate base (GAB) materials are used in construction of highway base layers in Maryland due to their satisfactory mechanical properties. The fines content of a GAB material is highly variable and is often related to crushing process, stockpiling in the quarry, transportation and during construction at the site.
Weight of 22a aggregate weight Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Weight of 22a aggregate weight, quarry, aggregate, and different kinds of minerals.
Jun 16, 2020 (f) Fine aggregate meeting M 6 may be used if the lightweight concrete does not exceed the maximum unit weight specified in the Contract Documents. (g) Fly ash shall not exceed 12 percent loss on ignition. (h) For use as a granular road base material. Not intended for use in locations where surfacing will not be placed over the base. MATERIAL
performance record, the aggregates should be tested before they are used in concrete. The most commonly used aggregatessand, gravel, crushed stone, and air-cooled blast-furnace slagproduce freshly mixed normal-weight concrete with a density (unit weight) of 2200 to 2400 kg/m. 3 (140 to 150 lb/ft. 3). Aggregates of expanded shale,
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