Use of coir geo textiles in construction of roads under PMGSY

Ministry of Rural Development

Use of coir geo textiles in construction of roads under PMGSY

96.69 Km roads constructed using coir geo-textiles in Karnataka, Kerala, Andhra Pradesh and Tamil Nadu

Coir geo-textiles are used for improvement of sub-grade soil strength in road pavements and stabilization of side slopes

Posted On: 03 AUG 2021 5:43PM by PIB Delhi
 

In order to encourage locally available materials and use of green technologies, guidelines were issued by the Ministry in May 2013, wherein the State Governments are required to propose minimum 15% of total length of annual proposals under Pradhan Mantri Gram Sadak Yojana   (PMGSY) under new technologies such as cement stabilization, lime stabilization, cold mix, waste plastics, cell filled concrete, paneled cement concrete pavement, fly ash,coir geo-textiles, etc. The details of roads constructed as on 28th July, 2021 using coir geo-textiles are as under.

Name of State

Road length constructed

(in km)

Karnataka

28.85

Kerala

14.29

Madhya Pradesh

9.05

Tamil Nadu

44.40

Total

96.59

 

Coir geo-textiles are used for improvement of sub-grade soil strength in road pavements and stabilization of side slopes. Coir geo-textiles have been used in various places for improving the properties and strength of sub-grade soil layer by providing a physical separation of sub-base and sub-grade layers. It is also used for side-slope protection, as it can retard soil erosion. The Indian Road Congress (IRC) has also accredited the use of coir geo-textiles in construction of roads. 

The State of Art Report published by the IRC HRB SR No. 21-2012 has reported that coir and jute technologies have proved to be effective in protection of slopes. In the preliminary observations by the National Quality Monitors (NQMs), these roads were found to be performing well. It has also been found that by improving the strength of the sub-grade soil the coir geo-textile results in marginal reduction in the thickness of the granular sub-base (GSB) layer, thus reducing costs. Cost of a road depends on the Schedule of Rates (SoR) of the State and local conditions. For those areas where coir is locally available, use of coir geo-textiles in road pavements is economical compared to the traditional methods of soil stabilization, especially when traditional material may not be available locally.

The State of Kerala has been allocated target length of construction of 71 km road length using Coir geo-textile under PMGSY-III, for which the requirement of Coir Geo-textile is assessed to be around 2.80 Lakh Square metre approximately.

Coir geo textile is being used for construction in PMGSY-III roads. The state-wise details of roads sanctioned using coir geo textiles are as under:-

 

Name of State

Road length        already sanctioned

( in km)

Andhra Pradesh

-

Gujarat

3.65

Kerala

0.80

Maharashtra

96.45

Odisha

-

Tamil Nadu

-

Telangana

127.88

Karnataka

82.51

Total

311.29

 

The list of roads sanctioned/ proposed using Coir Geo-textile at present, in the State of Kerala, district-wise is given at Annexure.

Annexure

Roads sanctioned/ proposed using Coir Geo-Technology under PMGSY-III in Kerala State

S.N.

District

Name of the Road

Road length sanctioned/ proposed to be sanctioned (Km)

Layer

Road Length sanctioned/ proposed using Coir Geo-Textile (Km)

Current Status

1

Alappuzha

MRL15-Palathikadu Kshethram to Jyothi jn Kavalakkal

4.11

Sub-grade

0.800

In Progress

2

Ernakulam

MRL11-Kummanode Jayabharath  Ottathani Perumani Road

5.18

Sub-grade

1.015

Proposal submitted by the State

3

Kannur

T02-Vazhakkal oorpalli thekkumpoyil road

3.48

Sub-grade

0.830

Proposal submitted by the State

4

Kozhikode

MRL12-Anjampeedika

Kayaladu Nedumpoyil Arikulam

8.83

Sub-grade

1.830

Proposal submitted by the State

5

Kozhikode

MRL05-Thaivvachaparambu

Valathukaracanal

5.44

Sub-grade

1.000

Proposal submitted by the State

6

Malappuram

T10-Mele Kozhiparamb-Poolakkal-Palakode-Karayil

6.53

Sub-grade

1.007

Proposal submitted by the State

7

Thiruvananthapuram

MRL17-Suvarna jubilee-Kuttiplavila-Kattachal kuzhi-Peringammala-Mangalathu nada

3.90

Sub-grade

0.625

Proposal submitted by the State

 

 

 

37.47

 

7.107

 

 

This information was given by Union Minister of State for Rural Development Sadhvi Niranjan Jyoti in a written reply in Lok Sabha today. 

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