granular sub base specification india


Technical specification road work Granular sub-base (GSB ...

Sep 05, 2017· Granular sub-base (GSB) layer for road

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MATERIAL SPECIFICATION FOR AGGREGATES - BASE, …

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. 1010.01.01 Specification Significance and Use . This specification is written as a provincial-oriented specification.

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GUIDELINES FOR THE DESIGN OF FLEXIBLE PAVEMENTS

CTSB - Cement Treated sub base (includes all types of cement and chemical stabilized sub-bases) CVPD - Commercial vehicles per day DBM - Dense Bituminous Macadam FWD - Falling Weight Deflectometer GB - Granular Base GDP - Gross Domestic Product GGRB - Gap Graded mix with Rubberized Bitumen GSB - Granular Sub-base

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INDEX FOR SPECIFICATIONS FOR GRANULAR BASE COURSE

compacted prior to constructing a granular base course thereon. If unstable material is to be excavated from the embankment or other specialized procedures are required, the work will be paid for on the basis of …

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CW 3110 R21 SUB-GRADE, SUB-BASE AND BASE COURSE …

1.2.5 Granular A – open-graded (not recycled) aggregates intended for use as free draining base and sub-base within the pavement structure. 1.2.6 Granular B – well-graded or recycled aggregates intended for use as base and sub-base within the pavement structure. Granular A can be used instead of Granular B.

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Granular Sub Base (GSB) Road Material, Packaging Size: 50 ...

M. K Traders - Offering Granular Sub Base (GSB) Road Material, Packaging Size: 50 kg at Rs 475/ton in Gurgaon, Haryana. Read about company. Get contact details and address | ID: 21100875112

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USE OF LOCALLY AVAILABLE MATERIALS IN PAVEMENT SUB …

Table 3.1. Grading for Granular Sub-base Materials [Table 400-1, MoRTH (2013) specification] 20 Table 4.1. Chemical composition of the slag samples determined by XRF technique 29 Table 4.2 (a) XRD peaks of slag samples corresponding to position [2θ (degrees)]

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BILL OF QUANTITIES FOR ROAD WORKS

5 Construction of granular sub-base 200 mm thick by providing and mixing of Local sand and Stone dust. 900.00 Cum 6 Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant,

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CONSTRUCTION DETAILS AND GUIDE SPECIFICATIONS FOR ...

should be CBR=80% and for sub-bases, CBR=30%. Base material should have a plasticity index no greater than 6 and a liquid limit no greater than 25. Compaction of the granular base for vehicular areas should be at least 95% of modified proctor density as determined by ASTM D 1557, or AASHTO T …

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Granular Sub Base (GSB) - Technical Specifications, Grades ...

Download : IS 2386 part 3 - https://rajatnegi021.blogspot.com/2021/09/construction-of-highway.htmlLecture 1 - How to Construct a Road https://youtu.be/KVVa21...

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GRANULAR SUB BASE (GSB) - YouTube

About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ...

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IRC method of design of exible pavements - NPTEL

consists of granular sub-base, granular base and bituminous surfacing. The individual layers are designed based on the the recommendations given below and the subsequent tables. 28.8 Pavement composition Sub-base Sub-base materials comprise natural sand, gravel, laterite, brick metal, crushed stone or combinations thereof

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Sub-bases | Pavingexpert

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.

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Different Type Pavers Block Thickness ... - Pavers India

Granular Sub-base : 60-80 20-40 250 200 60-80 20-40 250 250 Comerical Traffic Axle Load Repetitions 10-20 msa; Collector Streets, Industrial Streets, Bus and Truck Parking Areas; Blocks Sand Bed WBM/WMM Base Granular Sub-base ...

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WORKING METHOD STATEMENT OF GRANULAR SUB BASE …

Granular-Sub-base is often used as subbase layer of the pavement . The main role of this layer is to spread evenly the load over the subgrade .The subbase shall consist of a uniform mixture of granular material placed on a subgrade, uniformly moistened, shaped, and compacted, all in accordance with the contract documents.The work shall consist of laying and compacting of well-graded materials ...

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What is the difference between Granular Sub Base (GSB ...

May 22, 2020· A granular sub base is in their adopted for highway construction which can be constructed above the subgrade and below the crust material. The largest size of crane used for GSB is approx 65 mm.in recent type of construction engineers would like to use the crushed stone because it having a particular call centre job and specific range is this ...

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Cement Treated Sub-Base For Bituminous Pavement

Specifications of granular sub-base (GSB) materials conforming to MORTH: Specifications for Road and Bridge Works are recommended for use. 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

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Flexible pavement design.ppt - IIT Bombay

Sub-base course Granular Sub-base (GSB) materials conforming to clause 401 of MORT&H specifications for road and bridge works is recommended The sub-base material should have minimum CBR of 20% for cumulative traffic up to 2 msa and 30% for traffic exceeding 2 msa. The material should be tested for CBR at the dry density and

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GSB Granular Sub Base Mix Design Report in details | Civil4M

Apr 09, 2021· Granular Sub Base shall consist of well-graded material (which serves as a drainage layer) in accordance with the requirements of MoRT&H and Technical Specification clause 400 and Table : 400-1. The material shall be laid in one layer as sub-base and necessary according to lines, grades and cross-sections as shown in drawings.

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SECTION-7: BILL OF QUANTITIES

Construction of granular sub-base with crushed stone aggregated only, by mixing material in a mechanical mix plant at OMC, carriage of mixed Material to work site, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per technical

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LABORATORY PERMEABILITY TESTING OF GRANULAR SLAG …

Granular Sub base course (GSB) is an important structural layer as well as the drainage layer in pavements. Most of the pavements in India fail prematurely mainly due to ineffective functioning of this drainage layer. The current guidelines, Ministry of Road Transport & Highways, MORT&H (5th Revision)[1] recommends 6

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Road Pocket book 1.2.11 for engineers n 4 - Kar

3) Sub-arterial Streets: These are functionally similar to arterial streets but with somewhat lower level of travel mobility. Their spacing may vary from about 0.5 km in the central business district to 3 - 5 km in the sub-urban fringes.

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Sub-base Aggregates - pavingexpert.com

The names come from the definitions provided in the Roads and Pavement Bible, Specification for Highway Works (SHW) now regularly updated and published by The Highways Agency but previously issued by the Department of Transport and, before that, the Ministry of Transport. This explains why its regular name is DTp1 or MOT1, but it's also known, in some parts, as GSB – Granular Sub Base.

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Road & Highways Solutions - Terram

Sub-base Selection and Placement The sub-base must be well-graded, compactable and for permanent works, capable of transporting rising water and resistant to long-term degradation. Recommended grading bands for compactable granular materials are shown in Fig. 3. The sub-base thickness will depend on loading and on the strength of the subgrade.

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Subbase vs. Base (AASHTO Design Guide) - Constructed items ...

Jul 22, 2010· Subbase vs. Base (AASHTO Design Guide) The granular Subbase is supposed to be a lower quality material than the granular base. b) Layer coefficient a3 for a granular Subbase with CBR 30% is 0.11 (Part II, Table 2.7). Hence a granular Subbase with same thickness and same CBR would create a higher SN than a granular Base though it is in general ...

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Venkata Narayana Vuppu, TELANGANA, INDIA.: 2013

Dec 30, 2013· 21_granular sub-base density examples nov 2013 (7) 20_price adjustment g.o.s and circulars in roads &... 19_multiway conversion of commonly used units for ... 18_bituminous concrete aggregate gradation example... 17_sand gradation examples as per is:383-1970; 16_structural details of slab culverts as per ir...

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TS 1010 Aggregates – Base, Subbase, Select Subgrade, and ...

Specification for Aggregates – Base, Subbase, Select Subgrade, and Backfill Material . Note a: Granular A, B Type I, or M may contain up to 15% by mass of crushed glass and ceramic material combined. Note b: Granular A, B Type I, M, and S shall not contain more than 1% by mass of deleterious material. Granular

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Gray Granular Sub Base (GSB), For Construction, Rs 32 ...

Sri Guru Enterprises - Offering Gray Granular Sub Base (GSB), For Construction at Rs 32/cubic feet in Chennai, Tamil Nadu. Read about company. Get contact details and address | ID: 20391030730

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GSB (Granular Sub Base), For Filling,Roadworks, Rs 700 ...

Sri Ganapathy Enterprises - Offering GSB (Granular Sub Base), For Filling,Roadworks at Rs 700/metric ton in Chennai, Tamil Nadu. Read about company. Get contact details and address | ID: 21391364862

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Granular subbase and equipments used for its construction

Nov 05, 2016· In Granular Sub-Base (GSB) construction, aggregates are needed to be distributed according to their sizes. This purpose is fulfilled by using a machine known as aggregate distributor. 8. Motor Grader is a machine used to spread the sub-base material to uniform thickness and specified cross slope by adjusting the blade of the grader. 9.

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