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208-1.1 This item consists of an aggregate surface course composed of crushed or uncrushed coarse aggregate bonded with either soil or fine aggregate or both. It shall …
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result to the existing subgrade or base course in place. General: 1. Gradations and amounts to be used shall be set by an authorized person(s) of the Town as deemed necessary per job. 2. Crushed aggregate base coarse (Compaction Gravel) shall be purchased per standard ton with a standard ton to weight 2,000 pounds for the purpose …
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crushed slag, crushed gravel, natural gravel, or crushed reclaimed concrete. Aggregate Base Course (RAP) shall be 100 percent crushed recycled asphalt pavement material. All materials except Aggregate Base Course (RAP) shall ... Lightweight aggregate shall have a dry loose unit weight of 35 to 55 pounds per
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Gross Vehicle Weight Range: Assumed ESALs per Vehicle: Representative Vehicles: Cars and Light Trucks: 0 – 6,000 lbs. ... (CSTC) and "crushed surfacing base course" (CSBC) both meet the intended definition of "aggregate base". The minimum recommended crushed aggregate base thickness is 4 inches. Aggregate layers less than 4 inches ...
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Description. Base materials range from non-spec material such as fill sand/dirt, and crushed stone base to DOT & ASTM certified stone. Granite based stone materials range from Graded Aggregate Base to 1" Stone. Commonly …
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2010 Standard Specifications allowed up to 100 percent use of recycled aggregate for both base and subbase. 2006 Standard Specifications originally only allowed up to 50 percent use of recycled aggregate for subbase or base, but were amended in 2007, see below. These specifications can only be used for projects until Dec. 1, 2012.
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3.1 GENERAL REQUIREMENTS 3.2 OPERATION OF AGGREGATE SOURCES 3.3 STOCKPILING MATERIAL 3.4 PREPARATION OF UNDERLYING COURSE OR …
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Crushed HMA for use as Subbase 127 pcf — — Base Course 145 pcf 155 pcf 150 pcf Intermediate Course 147 pcf 155 pcf 150 pcf Surface Course 147 pcf 160 pcf 155 pcf The following densities should be used for estimating quantities of granular material. Table 2: Granular Material Densities Material Density Granular Subbase 135 pcf
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2.5. Unit weight of aggregate . ... for road base course material. ... Three aggregate types, crushed limestone, crushed dolomite, and uncrushed gravel, were tested in the laboratory for resilient ...
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(a) Subbase material may consist of any mixture of natural or crushed gravel, crushed stone or slag, crushed hydraulic cement concrete (CHCC), natural or crushed sand; with or without soil mortar. Subbase material may be used in a stabilized or unstabilized form. (b) Aggregate base material may be designated as Type I or Type II as follows ...
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b. The base course beneath rigid pavements. c. Select-Materials are typically locally available coarse grained soils with a maximum CBR of 20 when used in a flexible pavement section. When this guide specification is used for aggregate base course under rigid pavement, edit section title of the project specification to: BASE COURSE FOR
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psi. to 65 psi. The use of the coarse aggregate type material in constructing a base course will produce a base capable of withstanding pressures of 75 psi. to above 100 psi., depending upon the shape and amount of the coarse a^regate. A minimum thick ness of asphalt wearing surface may be used on coarse aggregate type base courses,
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In localities where soil type base course materials are not available, base course materials are produced from crushed stone, crushed slag', or gravel with or without …
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This item consists of a base course composed of recycled concrete aggregate, crushed to meet a particular gradation, constructed on a prepared course in accordance with these specifications and in conformity to the dimensions and typical cross sections shown on the plans. MATERIALS . 219-2.1 AGGREGATE.
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material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi- ... aggregate and crushed stone coarse and fine aggregate are produced by crushing natural stone. Crushing, screening, ... density, (previously termed "unit weight") (ASTM C 33, C 330,
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that gravel borrow be used in lieu of gravel base. When gravel borrow is substituted for gravel base, the top 0.10 feet of gravel borrow shall be replaced with 0.10 feet of crushed surfacing top course (CSTC). Testing and sampling frequencies will be as required for the material actually placed. The CSTC and gravel borrow used in lieu of the ...
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Unit weight or density is used to quantify the weight per unit volume of an object. When it is expressed in the basic SI Unit of mass (kg/m 3), it is usually referred to as density, but when expressed in terms of weight (kN/m 3), it is usually referred to as unit weight.. Density (kg/m 3) = Mass (kg)/Volume (m 3). The unit weight of a material is …
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UNTREATED BASE COURSE – SECTION 02721 2017 Standard Specifications This section includes production, construction, and compaction of UTBC used for pavements, shoulders, and incidental construction. GENERAL Untreated Base Course is a base course composed of natural gravel, crushed rock, or crushed slag placed on a …
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Minimum 90% by weight of particles with at least two fractured faces and with at least one ... The crushed aggregate base material shall be placed on the approved subgrade in uniform, equal-depth ... Item P209.030.0000 Crushed Aggregate Base Course Stockpile – per ton . Item P209.070.0000 Base Course Reconditioning – per square yard ...
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November 2002 Crushed Aggregate Base Course 307(1) Section 307 CRUSHED AGGREGATE BASE COURSE 307.1 GENERAL 307.1.1 Description of Work The purpose of a crushed aggregate base course (CABC) is to: 1. distribute the wheel loads transmitted to the subgrade or subbase, if specified; 2. provide a free-draining underlying material …
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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 …
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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 ...
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C Crushed gravel with a minimum of 60% of the particles retained on a No. 4 sieve with two or more crushed faces as determined by Tex -460-A, Part I. Blending of two or more sources is allowed. D Type A material or crushed concrete. Crushed concrete containing gravel will be considered Type D material.
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Asphalt base course unit weight. Weighs about 2200 pounds per cubic yard depending on the moisture content. 2500 X 624 1560 PCF. ... All aggregate base courses shall be crushed limestone. ... By weight of the total blend and has reacted in. Granular unbounduntreated material as a base course within a flexible pavement structure. The …
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B. Lump Sum: If the Bid Schedule indicates a lump sum for aggregate base course, the Lump-sum method of measurement and payment will be in accordance with Section 01 20 00 - Price and Payment Procedures, Article 1.03. C. Unit Price: 1. If the Bid Schedule indicates a unit price for aggregate base course, the unit price
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AGGREGATE BASE COURSE DENSITY The most recent Aggregate Base Course (ABC) unit weight test results performed by the NCDOT M&T Soils lab can be queried using …
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Effective with the November 2022 Letting 119 2023 Standard Specifications 301.2.4.4 By-Product Materials (1) The contractor may provide an aggregate with one of the following by-product materials mixed with crushed gravel, crushed concrete, or crushed stone up to the listed maximum percentage, by weight.
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course for base courses. It shall be constructed on the prepared subgrade according to these specifications and in substantial conformity with the lines, grades, compacted thickness, and typical cross section shown on the plans. 302.02 Materials. Selected material shall consist of a satisfactory sandy type soil or mixture of sandy soil and stone or
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May 2004 DIVISION 300 Bases and Subbases SOUTH CAROLINA DEPARTMENT OF TRANSPORTATION
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materials composing the asphaltic concrete surfacing, the crushed stone base course, and the sandy gravel subbase were uniform throughout, as was also the embankment soil on which the pavement was laid. The design of the factorial experiment was such that it was possible to make a statistical analysis of the performance data, i.e., in part,
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