301.2.4.4 By-Product Materials It is usually not provided on subgrade of good quality.
pavement(RAP) together with such material as manufactured sand or other fine materials naturally contained, or added thereto as needed to conform with these Specifications.
Material that is blade mixed and watered shall be compacted in maximum lifts of 150 mm to a minimum of 95% AASHTO Standard Dry Density. It is designed to evenly spread the load of the paving, and any traffic thereon, to the sub-grade below.
The purpose of a base course is to distribute the induced stresses from the wheel load so that it will not exceed the strength of the underlying soil layers. B.
Base course Work shall include, but not be necessarily limited to the following:.
Figure 5-5shows the distribution of stress through two base courses. On public highways and other heavier-use projects, the binder course may be underlain by a
This project was initiated to determine the viability of a -inch minus gradation In addition to site paving benefits, ACB can be advantageous because it Test following Section 01454 - Testing Laboratory Services.
E. Surface Course - The upper portion of the pavement structure consisting of a mixture of mineral aggregates and bituminous material or Portland cement concrete.
2042 Materials. Material shall be ordered in full truck load lots.
New Features. BASES . A well-constructed sub-base will aid drainage and prevent settlement and channelisation - the phenomenon common on cheap installations of block paving, where two 'ruts' develop in the paving.
Crushed 901. 1.2.4 Leveling course layer a non-structural layer of Aggregate base shall meet the requirements of the 2004 Missouri Standard Specification for Highway Construction (MSSHC), Section 304 - Aggregate Base Course. Unpaved Road Material Specifications There are a range of recommendations, guidelines, and specifications available for unpaved road base and wearing course materials. Base Course Material Base material passing the No.
Where not indicated, compacted thickness shall be 6 inches. 1 57 4 inch 100
to modify the specifications to suit a local material source or project, it is best to begin with a state specification. Aggregate base course shall be applied over the prepared sub grade or sub base and compacted in accordance with Section 26 of the Caltrans Standard Specifications. DURABILITY The material shall comply with the requirements in columns 3,4 and 5 of table 3602/2. AGGREGATE BASE AND SURFACE COURSES 02621-4 SPECIFICATIONS - MAY 1996 C. Detailed Material Requirements 1. 304.01 .
3.16 The finished surface of the base course shall be true to grade and cross section and free of any surface defects. Tim Wozab: 801-633-7619; twozab@utah.gov. MATERIALS Furnish uncontaminated materials of uniform quality that meet the requirements of the plans and specifications.
Contractor shall proceed with delivery of crushed aggregate base coarse (Compaction Gravel) upon 12 hour notice.
(Supplemental Specification) 1-17 Workbook Redline Section, including Mandatory Revisions; AGGREGATES: 901: COARSE AGGREGATE : 902: FINE AGGREGATE : FLEXIBLE-PAVEMENT MATERIALS (INCLUDING MATERIALS FOR STABILIZING) 911: BASE AND STABILIZED BASE MATERIALS : 914: STABILIZATION MATERIALS : 916: BITUMINOUS MATERIALS : 917:
SUPPLEMENTAL SPECIFICATION S.C. The
Base Course of Rigid Pavement This is the layer directly below the PCC layer and generally consists of aggregate or stabilized sub-grade. 2.1 Material Specifications Aggregate base course (Class 6) is one of seven classes of unbound aggregate bases that may be used.
The material shall be delivered in approved vehicles of a uniform capacity and it shall be the charge of the Contractor that the required amount of specified material shall be delivered in each 100-foot station. AGGREGATE BASE COURSE MATERIAL TESTING AND RUTTING MODEL DEVELOPMENT NCDOT Project 201318 FHWA/NC/201318 December 2014 Liang Chern Chow Debakanta Mishra, Ph.D. Erol Tutumluer, Ph.D. Department of Civil and Environmental Engineering University of Illinois at UrbanaChampaign GRADED AGGREGATE BASE. 200 SIEVE %MAX: LOS ANGELES ABRASION %MAX: SODIUM SULFATE SOUNDNESS %MAX: CRUSHER RUN AGGREGATE CR-6 D1241(a) 6
Asphalt treated base (ATB) is a dense-graded (but more permeable) HMA with a wide gradation band and lower asphalt content intended for use as a stabilizing base course and intended to be used in conjunction with a top/ wear course of street/ highway grade HMA (typically 1/2 inch or 3/8 inch HMA as currently defined by Washington state DOT specifications).
Furnish uncontaminated materials of uniform quality that meet the requirements of the plans and specifications. These specifications suggest close and coarse graded granular sub-base materials and specify that the materials passing 425 micron sieve when tested in accordance with IS:2720 (Part
Types of Base Course. Subgrade preparation to lines and grades shown on the plan.
Anticipated revisions to specifications.
BASE MATERIAL SPECIFICATIONS. 303.08 Dust Palliative ASTM D1557 Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort 5.
2. When this guide specification is used for aggregate base course under rigid pavement, section title of the project specification will be: BASE COURSE FOR RIGID PAVING and the words "rigid pavement base course" selected throughout. Aggregate Base Course often referred simply as ABC, has certain desirable properties.
304-1 . 209-2.1 AGGREGATE. Use graded aggregate material, produced from Department approved sources, which yields a satisfactory mixture meeting all the requirements of these Specifications after it has been crushed and processed as a part of the mining operations. Aggregate base course shall have minimum uniform thickness after compaction of dimensions indicated.
Ensure that the scale is certified according to Section 109 and is large enough to weigh the largest anticipated load.
Granul ar Base Course; Macadam Base; In-water bound Macadam; Treated Bases; 3. 200 (0.075 mm) sieve, made from the natural erosion of rocks, and consisting of sub-angular or rounded particles.
This leads to smoother surface courses, better joint construction and can often take only half the time of the same job done with untreated aggregate base material.