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The crushed aggregate base material shall be placed on the approved subgrade in uniform, equal-depth layers, each not exceeding 6 inches of compacted depth. The …
5) If the Contractor supplies aggregate, specify if a surface aggregate class other than "B" is required. 6) Specify transverse variance rate, if needed. Suggest a range of 10% (Ex. 22 - 32.) 7) Specify additional roller requirements, if needed. 8) Any limit on aggregate haul truck size may be shown on the plans.
Standard Specification for Materials for Aggregate and Soil–Aggregate Subbase, Base, and Surface Courses. This specification covers the quality and …
May 2004 DIVISION 300 Bases and Subbases SOUTH CAROLINA DEPARTMENT OF TRANSPORTATION
The coarse aggregate shall meet the quality requirements in 903.25. Subsection 903.04 (pg.925), 5-13-19; Aggregate for Lean Concrete Base; Remove entire subsection: Subsection 903.05 – Aggregate for Mineral Aggregate Base and Surface Courses (pg. 925) 5-15-17; add reference to subsection 903.05 C. in the second paragraph of …
PART E – SURFACE COURSES ITEM 300 – AGGREGATE SURFACE COURSE. 300 Description. This item shall consist of a wearing or top course composed of gravel or crushed aggregate and binder material, whichever is called for in the Bill of Quantities, constructed on a prepared base in accordance with this Specification and in conformity …
299-1.1 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 be constructed on a prepared course according to these Specifications and to the dimensions and typical cross section shown on the Plans.
Class 1 aggregate base shall consist of crushed stone or gravel, free from vegetable ... 10/01/2010 PAGE 5 OF 5 STANDARD SPECIFICATIONS D. Aggregate base course 6 inches and less in thickness may be spread and compacted in one layer. ... The surface of the finished aggregate base course at any point shall not vary more than 3/4 inch
DFC and Superpave FC2 are dense-graded surface course mixes requiring premium 100-percent crushed coarse and fine aggregates to increase stability and resist rutting. OFC is an open-graded mix, allowing internal drainage through the matrix rather than over the pavement surface, reducing the potential for hydroplaning on wet roads.
AASHTO M 147, 2017 Edition, 2017 - Standard Specification for Materials for Aggregate and Soil–Aggregate Subbase, Base, and Surface Courses This specification covers the quality and grading of sand–clay mixtures; gravel, stone, or slag screenings; or sand, crusher run coarse aggregate consisting of gravel, crushed stone, or slag with or …
M147, Standard Specification for Materials for Aggregate and Soil-Aggregate Subbase, Base, and Surface Courses. T11, Standard Method of Test for Materials Finer Than …
0.20 foot of crushed surfacing base course, gravel base, or ballast. Keystone placed for this purpose will be paid for at the lower unit Contract price for either the base material being keyed or crushed surfacing top course. 4-04.3(7) Miscellaneous Requirements The surface of each layer of surfacing material shall be maintained true to line ...
Item P-207 In-Place Full Depth Reclamation (FDR) Recycled Asphalt Aggregate Base Course; Item P-208 Aggregate Base Course; Item P-209 Crushed Aggreagate Base Course; Item P-210 Caliche Base Course; Item P-211 Lime Rock Base Course; Item P-212 Shell Base Course; Item P-213 Sand-Clay Base Course; Item P …
Aggregate and Similar Surface Materials. The term aggregate generally refers to materials that started out as bedrock. Aggregate is commonly used for base and surface courses at recreation sites and on trails. Aggregate includes combinations of crushed stone, gravel, crushed gravel, sand, or other mineral materials.
2.1.1.1 Aggregate Base Course 2.1.1.2 Graded-Crushed Aggregate Base Course 2.1.2 Fine Aggregate 2.1.2.1 Aggregate Base Course 2.1.2.2 Graded-Crushed Aggregate Base Course 2.1.3 Gradation Requirements 2.2 LIQUID LIMIT AND PLASTICITY INDEX 2.3 TESTS, INSPECTIONS, AND VERIFICATIONS 2.3.1 Initial Tests 2.3.2 Approval of Material
facilities in accordance with these specifications, and in conformity with the lines, grades, thicknesses and typical sections shown on the plans or ... Crushed Slag 1003.01 & 1003.04(e) Water 1018.01 Lime 1018.03 Aggregate surface course materials shall be a uniform blend, sampled in dedicated stockpiles and approved prior to placement.
aggregates on a prepared surface in accordance with the specifications in reasonably close conformity with the lines, grades, thickness and typical cross sections, as shown on the plans or established. 304.02 Aggregate Aggregates shall conform to the requirements specified in the following ... Base Course, Crushed 1A, B or C
99-1.1 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 be constructed on a prepared course according to these Specifications and to the dimensions and typical cross section shown on the Plans. MATERIALS. 299-2.1 GENERAL. …
ABCM Aggregate Base Coarse is a hard pack sub-base compaction material. Contains a mix of crushed stone, topsoil and dust. Cross-Section layers that make up a mortar-less or "dry-laid" pavement. A. Sub-Grade or undisturbed soil B. Aggregate Base Course C. Sub-Base Crushed Fines D. Paver Sand base bed E. Pavers F. Polymeric Sand. Aggregate ...
Specifications For CRUSHED AGGREGATE BASE COARSE #2 & #3 (COMPACTION GRAVEL) ... 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 …
[AGGREGATE BASE COURSE] [AND/OR][GRADED CRUSHED AGGREGATE BASE COURSE] FOR FLEXIBLE PAVING 05/22 ***** NOTE: This guide specification covers …
50 303.07 Checking and Correcting Base and Surface The top of each aggregate course shall be checked transversely and all deviations in excess of 1/2 in. shall be corrected. If additional aggregate is required, the course shall be remixed and re-compacted. 303.08 Dust Palliative A dust palliative, if required, shall be in accordance with 407.
This item consists of a base course composed of crushed aggregate constructed on a prepared course in accordance with these Specifications and to the dimensions and …
ASTM D1073 - Standard Specification for Fine Aggregate for Bituminous . Paving Mixture . ASTM D242 - Standard Specification for Mineral Filler for Bituminous . Paving Mixture . Mineral aggregates shall be crushed rock, broken stone, crushed gravel, sand …
The focus of the design methodologies is a stable foundation (existing subgrade) for aggregate surfacing, assuming the design load is applied at the top of the aggregate (surface course). The importance of the applied load position is covered under the Literature Review section. The chief failure mode of an aggregate surface on existing ...
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
differences between surface gravel and base (cushion) material. Good gravel for Section III: Surface Gravel Section III: Surface Gravel 39 base courses will generally have larger top-sized stone and a very small per-centage of clay or fine material.This is necessary for the strength and good drainability needed in base gravels.This
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 be constructed on a prepared course according to these Specifications and to the …
asphalt base is equal to 2.4 inches of dense graded crushed aggregate base. ***Composed of 1.0" or 1.5" of asphalt surface course. The remainder is asphalt base placed directly on the compacted prepared subgrade. The asphalt base may be placed in one or more courses.
The crushed aggregate base material shall be placed on the approved subgrade in uniform, equal-depth layers, each not exceeding 6 inches of compacted depth. The aggregate shall meet gradation and moisture requirements prior to compaction. . Crushed aggregate base course shall not be placed on frozen material.
AGGREGATE BASE COURSE DESCRIPTION . 304.01 This work consists of furnishing and placing one or more courses of aggregate and additives, if required, on a prepared subgrade. MATERIALS . 304.02 Aggregate. The aggregates shall meet the requirements of subsection 703.03. Acceptance will be based on random samples taken from each lift.
base courses, rigid base courses, flexible surface courses, rigid pavement, fencing, drainage, turf, and lighting installation. 2. Application. The Federal Aviation Administration (FAA) recommends the guidelines and specifications in this AC for materials and methods used in the construction on airports. In general, use of this AC is not mandatory.
This Item shall consist of a foundation for surface course composed of soil. aggregate, lime and water in proper proportions, road-mixed and constructed on a. prepared subgrade/subbase in accordance with this Specification and the lines, grades and typical cross-sections shown on the Plans or established by the.
Specifying a minimum percentage of coarse aggregate angularity can also be used to obtain improved durability for aggregates used in surface treatments and to obtain increased friction and texture for aggregates used in pavement surface courses. The standard coarse aggregate angularity tests are: AASHTO TP 61: Determining the …
Specification 334: Crushed Glass (not in surface course) Specification 901: Coarse Aggregate - Reclaimed Portland Cement Concrete. Specification 911: Base - Reclaimed Portland Cement Concrete, reclaimed general crushed concrete. Recycled Plastic . Note: All recycled plastic products are governed by Specification 972. Other sections may also ...
The plant shall blend and mix the materials to meet the Specifications. 209-3.3 PLACING. The crushed aggregate base material shall be placed on the approved subgrade in uniform, equal-depth layers, each not exceeding 150 mm of compacted depth. ... The surface of the aggregate base course shall be finished by blading or with automated …
Group I Aggregates 41-55 Group II Aggregates 51-65 4. Soundness Test coarse aggregate used in Portland cement concrete, bituminous surfaces, bituminous bases, aggregate bases, or surface treatment with five alternations of the magnesium sulfate soundness test. a. Use aggregate with a weight loss of less than 15 percent. b.
#A FLEXIBLE pavement structure usually consists of a surface course composed of asphalt and mineral aggregate and a base course. The base course is generally com posed of granular material such as crushed aggregate, gravel, selected soil, or a mix ture of selected soil and aggregate. Since the cost of the surface course per ton is sev