road base and subbase material requirement

road base and subbase material requirement

SUB-BASE AND ROAD-BASE - Method Statement HQ

2020-10-23 · SUB-BASE AND ROAD-BASE Ref. No. : 02/11/MC/14/00-01 Revision No. : 1.0 Revision Date : 1/11/2002 2.2 Place of Upper Subbase 2.2.1 Prior to placing any Upper Subbase material, the underlaying subgrade or subbase shall be shaped and compacted in accordance to the specifications.

MATERIAL SPECIFICATION FOR AGGREGATES - BASE,

1010.09 OWNER PURCHASE OF MATERIAL - Not Used . APPENDICES . 1010-A Commentary . 1010.01 SCOPE . This specification covers the requirements for granular aggregate materials for use in subgrade, subbase, base, gravel surface course, shouldering and bedding and backfill to sewers, culverts, and other structures.

Method Statement for Placement of Sub Base and Road

2018-9-17 · Prior to placing any lower subbase material, the under laying subgrade shall be shaped and compacted in accordance to the project specifications. The material shall be placed over the full width of the formation to the required thickness as shown in the

R40 P avement Base and Subbase Dat e: July 2014 Editi

2015-7-17 · The material and construction standards for the five material categories (Base Class A and B, Subbase 1 and 2 and Unsealed Road and Unsealed Shoulders Wearing

(PDF) CONSTRUCTION OF SUBGRADE, SUBBASE AND

CONSTRUCTION OF SUBGRADE, SUBBASE AND BASE LAYERS Dr. Anjaneyappa Department of Civil Engineering RV College of Engineering Bengaluru – 59 Email: [email protected] Pavement Types Flexible pavements Rigid pavements / Cement Concrete (CC) Pavements Semi-rigid pavements Composite pavements Pavement Composition- Bituminous Vehicle Black Topping(115 to 200) Base(250) Road Crust Sub Base ...

Typical Road Structure Cross Section - Sub Grade, Base ...

2017-3-23 · Characteristics of materials used in Sub Base: The subgrade material should be clean and free from organic matter and should be able to be compacted by roller, to form stable sub-base. The material should have following characteristic. Well graded uniformity coefficient (D60/D10) should not be

1141 Flexible pavement base and subbase 20.0 MARKUP

2020-12-16 · undesirable material to Base/Subbase material properties and test methods tables. - Test results from a NATA accredited laboratory. Alternative unbound base and subbase materials: If proposed, submit details of the following: - Test results from a NATA accredited laboratory. - Evidence of conformance to the Shear strength table. Records

Materials - QA specifications - Specifications - Technical ...

2021-5-3 · 3051 - Granular Base and Subbase Materials for Surfaced Road Pavements. 3051 - Granular Base and Subbase Materials for Surfaced Road Pavements download pdf (1.08Mb)

Granular Sub-base (GSB)-Specification and construction ...

2020-8-18 · Granular Sub Base. Granular Sub-base (GSB) consists of laying and compacting well graded material on prepared sub-grade in accordance with the specifications.: GSB layer is intermediate layer in between Sub-grade and Wet mix macadam. GSB layer is laid in

Design Guide for Subgrades and Subbases

2008-10-21 · subgrade has a CBR value less than 10, the subbase material will deflect under traffic loadings in the same manner as the subgrade and cause pavement deterioration. The subbase, the layer of aggregate material immediately below the pavement, provides drainage and stability to the pavement.

SUB-BASE AND ROAD-BASE - Method Statement HQ

2020-10-23 · SUB-BASE AND ROAD-BASE Ref. No. : 02/11/MC/14/00-01 Revision No. : 1.0 Revision Date : 1/11/2002 2.2 Place of Upper Subbase 2.2.1 Prior to placing any Upper Subbase material, the underlaying subgrade or subbase shall be shaped and compacted in accordance to the specifications.

CHAPTER 3: SUBGRADE, SUBBASES, and BASES

2019-12-30 · 301-2 material . 301-3 construction requirements . 301-3.01 preparation of roadbed . 301-3.02 application of lime . 301-3.03 mixing . 301-3.04 compaction and finishing . 301-3.06 safety program . 302 cement treated subgrade . 302-3 construction requirements . 302-3.03 mixing . 303 aggregate subbase and aggregate base . 303-2 materials . 303-3 ...

21 Spec - 301 Base, Subbase, and Subgrade Aggregate

2020-10-14 · 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.

Section 00641 - Aggregate Subbase, Base, and Shoulders

00641.42 Placing Aggregate Base or Subbase on Geotextile - When subgrade or drainage geotextile is required between the subgrade and base, place the first lift of material directly on the fabric, without road mixing. 00641.43 Thickness and Number of Layers:

(PDF) CONSTRUCTION OF SUBGRADE, SUBBASE AND

CONSTRUCTION OF SUBGRADE, SUBBASE AND BASE LAYERS Dr. Anjaneyappa Department of Civil Engineering RV College of Engineering Bengaluru – 59 Email: [email protected] Pavement Types Flexible pavements Rigid pavements / Cement Concrete (CC) Pavements Semi-rigid pavements Composite pavements Pavement Composition- Bituminous Vehicle Black Topping(115 to 200) Base(250) Road Crust Sub Base ...

Design Guide for Subgrades and Subbases

2008-10-21 · subgrade has a CBR value less than 10, the subbase material will deflect under traffic loadings in the same manner as the subgrade and cause pavement deterioration. The subbase, the layer of aggregate material immediately below the pavement, provides drainage and stability to the pavement.

Table 3602/1 CRUSHED STONE BASE AND SUBBASE:

2021-3-4 · Table 3602/1 CRUSHED STONE BASE AND SUBBASE: MATERIAL REQUIREMENTS Material TYPE OF MATERIAL Characteristic G1 G2 G3 Parent Sound rock from an approved Sound rock, boulders Sound rock, boulders or Material quarry, or clean, sound mine or coarse gravel coarse gravel rock from mine dumps, or clean sound boulders

Sub-bases | Pavingexpert

2 天前 · The sub-base layer is often the main load-bearing layer of a pavement. It is designed to evenly spread the load of the paving, and any traffic thereon, to the sub-grade below. 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.

Suggested Compaction Standards for Crushed

No. 4 fraction only. Granular base and subbase materials, however, commonly include from 35 to 70 percent plus No. 4 aggregate, which necessitates making a correction to the laboratory density figures to compensate for the effect of the oversize particles. The formula that has been used in Virginia assumes that the minus No. 4 material is

Road Aggregate 101: Important Stuff

2012-10-11 · 10/11/2012 7 Road Aggregate 101: Nominal maximum and/or minimum sized stone in mix The nominal size distribution of an aggregate specification is defined as the range of sieve openings through which 100% of the aggregate can pass. Road Aggregate 101: Gradation or distribution of different sized stones

Section 00641 - Aggregate Subbase, Base, and Shoulders

00641.42 Placing Aggregate Base or Subbase on Geotextile - When subgrade or drainage geotextile is required between the subgrade and base, place the first lift of material directly on the fabric, without road mixing. 00641.43 Thickness and Number of Layers:

R40 P avement Base and Subbase Dat e: July 2014 Editi

2015-7-17 · The material and construction standards for the five material categories (Base Class A and B, Subbase 1 and 2 and Unsealed Road and Unsealed Shoulders Wearing

LIMESTONE: AN ALTERNATIVE MATERIAL FOR ROAD

2014-5-21 · 4.2 Comparison between Materials Requirements for Unbound Bases and Subbases (AASHTO Designation) with Akud Quarry Curve 41 4.3 Comparison between Grading Limits for Type 1 and Type 2 Subbase based on British Standard ... as an alternative material for road base or subbase. For the purpose of the study, two

Characterisations of Base Course Materials in Western ...

2017-2-20 · base to further reduce construction costs, and must be surfaced with an approximately 30 mm asphalt surface in WA. High quality aggregates are therefore required for the base course layer of a pavement because of its proximity to the road surface. Traffic loads on the road surface result in high stress levels on the base course layer.

Design Guide for Subgrades and Subbases

2008-10-21 · subgrade has a CBR value less than 10, the subbase material will deflect under traffic loadings in the same manner as the subgrade and cause pavement deterioration. The subbase, the layer of aggregate material immediately below the pavement, provides drainage and stability to the pavement.

Inspector's Handbook: Subbase Construction

2016-7-25 · A subbase I ies between the subgrade and the base. It has greater stability than the subgrade, and is particularly beneficial with a subgrade of inherently low stability sub­ jected to excessi.ve moisture. Type~ Four types of subbases are used in Iowa: 1) soil aggregate subbase 2) granular subbase 3) soil lime subbase

Chapter Two - Aggregate Types and Material Selection ...

Lukanen, E.O., Application of AASHO Road Test Results to Design of Flexible Pavements in Minnesota, Final Report FHWA/MN-80/09, Office of Materials and Research, Min- nesota Department of Transportation, St. Paul, 1980, 83 pp. Maher, M.H. and W. Popp, Recycled Asphalt Pavement as a Base and Subbase Material

100% compaction for aggregate basecourse/sub-base ...

2012-2-3 · Not such a big deal with rigid pavement, but can be significant with flexible pavement. Further, if subbase or subgrade soils require bridging in any fashion, a higher stability and compaction in the base will be necessary. My point is not to summarily dismiss the compaction requirement. If done for considered reasons, it is a responsible ...

An Experimental Study of the Road Performance of

The research into the road performance of coal gangue is of great significance for the consumption of coal gangue and reducing pollution. In this paper, the coal gangues were prepared by separation and crushing processes, and their gradations were also optimized. Aiming to identify the possible problems of coal gangue as a pavement base, an unconfined compressive strength test, a splitting ...