RUBBERISED BITUMEN FOR ROAD WORKS full report
#1

[attachment=1788]
RUBBERIZED BITUMEN FOR ROAD WORKS


Introduction

Development of infrastructural facilities like road is vital for the economic growth of a country. Good roads improve connectively, accessibility, mobility and productivity. The use of bitumen modified using polymeric materials like natural rubber, synthetic rubbers and plastic etc. have helped to a great extends in improving the quality of roads. Bitumen thus modified employing polymers are known as Polymer Modified Bitumen (PMB). Out of these Natural Rubber Modified Bitumen (NRMB) is widely used in road construction which is obtained by adding natural rubber latex to boiling bitumen.

HISTORY AND PRESENT STATUS

Rubberisation was first experimental in Kerala way back in 1974 when a 1km Stretch of the MC road was paved with Natural Rubber Modified Bitumen (NRMB). Though the experiments was successful there were not many takers for the process, mainly because of the shortage of quality NRMB.
 
After a long time Kochi Refineries started commercial production of rubberised bitumen in 1999. The Refineries is having a commercial plant with a production capacity of 15000 tonnes per year at a cost of Rs. 40 lakhs

PREPARATION OF RUBBERISED BITUMEN

Among various forms of rubber used, it is seen that rubber latex is the best form of rubber that can be incorporated into bitumen. The initial process for the production of NRMB was mostly insitu mixing of natural rubber latex with bitumen. For this the bitumen was heated to about 1400C and small amounts of (1%) of kerosene was added as viscosity modifier. To the boiling bitumen , natural rubber latex about 2 to 4% by weight of bitumen was added , stirred well and kept for about 2 hrs. for homogenization. Uniformly blended NRMB thus obtained was used for the urbanization of roads.

CASE STUDY

The following laboratory tests were carried out on the different blends as per relevant is
Penetration test
Softening point (0C)
Ductility (cms)
Loss on heating (%)
Viscosity
Stripping value test

ADVANTAGES OF NRMB

For superiority in quality to ordinary bitumen in terms of penetration, softening point and elastic recovery.
Less affected by changes in temperature. The effect of rubber is to increase the resistance to flow at high temperature and at the same time improve the resistance to brittle fracture at low temperature.
More retention of aggregates and elimination of bleeding.
Reduces environmental pollution by less consumption of bitumen.
Conserves energy, natural resources and bitumen.
Enhances tyre rolling and save fuel.
Reduces traffic noise pollution.
More comfort riding.
The roads surfaced with NRMB provide more service life than normal bitumen roads.
Reduction in the road maintenance cost.
It can be applied on the road by conventional mixing and mechanized techniques.
As a result of improved resistance of rubberised bitumen to temperature, the tendency for pavement cracking and fatting up is absent in roads surfaced with it.
Rubberised bitumen shows improved adhesion with aggregates.
Rubberisation of roads will create additional demand for natural rubber and it will ensure a remunerative price for rubber farmers.

COST OF RUBBERISATION

Based on commercial trails conducted in India and abroad , additional cost for rubberised roads comes to 15-20% compared to bituminous roads, however it is possible to get about at least 50% more service life for rubberised roads than normal bitumen. Also the studies conducted by the Central Road Research Institute, New Delhi, reveals that the cost for periodic maintenance of these roads can be reduced by 35% compared to that of the bituminous roads. The suggested renewal cycle with NR modified bitumen is 7-8 years, compared to 4-5 years for conventional bitumen. Better fuel savings are also possible with rubberisation. Thus the extra expenditure required for rubberisation is more than compensated.


CONCLUSION

Addition of rubber in any form to bitumen produces favourable changes in the properties of bitumen. It is found that rubberised bitumen was able to overcome the disadvantages of conventional bitumen roads, which melt during summer and become brittle during winter. Conclusions drawn from the present study are:
 
The roads surfaced with NRMB provide atleast 50% more service life than normal bitumen roads.
Reduction in the road maintenance cost by 30%.
Enhances tyre rolling and save fuel by 10%.
Reduces traffic noise pollution.
More comfort riding.
Reply
#2


RUBBERISATION OF ROADS

The use of bitumen modified using polymeric materials like natural rubber, synthetic rubbers and plastic etc. have helped to a great extends in improving the quality of roads. Bitumen thus modified employing polymers are known as Polymer Modified Bitumen (PMB). Out of these Natural Rubber Modified Bitumen (NRMB) is widely used in road construction which is obtained by adding natural rubber latex to boiling bitumen.
Reply
#3
please give me some info about bubberised bitumen for road works
Reply
#4
BlushUndecidedShyTongueangel:
Reply
#5
i want their report.please send to me.
Reply
#6
you can refer these page details of "RUBBERISED BITUMEN FOR ROAD WORKS"link bellow

http://studentbank.in/report-rubberised-...9#pid51829
Reply
#7
Pls. sent me abstract and seminar report (pdf and ppt format)
forrubberised bitumen for road works.


Thanking you,

Reply
#8
To get more information about the topic "RUBBERISED BITUMEN FOR ROAD WORKS " please refer the page link below

http://studentbank.in/report-rubberised-...9#pid51829
Reply
#9
Friends, may i get help for detailed study for rubberised bitumen i.e lab tests
Reply
#10
to get information about the topic RUBBERISED BITUMEN FOR ROAD WORKS full report,ppt and related topic refer the page link bellow

http://studentbank.in/report-rubberised-...ull-report

Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: ppt of crumbled rubberised concrete, works committeeop, road m, email in marketing how it works, slogen about road safety, what is ageing of bitumen, how an apr9600circuit works,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  USE OF DISCRETE FIBER IN ROAD CONSTRUCTION project report helper 2 8,081 07-04-2016, 06:49 PM
Last Post: manoj8058
  RAINWATER HARVESTING AND ARTIFICIAL RECHARGE TO GROUND WATER full report project report tiger 11 11,712 17-12-2015, 02:13 PM
Last Post: seminar report asees
  trenchless technology full report project report tiger 17 17,115 11-07-2014, 10:43 PM
Last Post: ahamed fidha
  RAINWATER HARVESTING full report and ppt project topics 11 25,160 27-03-2014, 01:14 AM
Last Post: onkarok9294
  skylights full report computer science technology 4 6,164 02-11-2013, 01:05 PM
Last Post: sac louis vuitton pas cher
  geopolymer concrete full report project report tiger 11 23,010 16-05-2013, 09:34 AM
Last Post: Guest
  green concrete full report project topics 9 37,094 12-03-2013, 12:45 PM
Last Post: computer idea
  global warming full report project report tiger 16 25,460 02-03-2013, 11:58 AM
Last Post: seminar details
  green buildings for quality living full report project report tiger 5 10,198 16-02-2013, 10:44 AM
Last Post: nagarjun ks
  CONSTRUCTION WASTE RECYCLING full report project topics 10 13,699 08-02-2013, 10:23 AM
Last Post: seminar details

Forum Jump: