ct Tensile Strength
ii. Rutting Test
I. INDIRECT TENSILE STRENGTH:-
Use this test method to determine the tensile strength of compacted bituminous mixtures.
As the figure shown below tensile strength of the Waste Plastic Bituminous Mixes is greater then Conventional Mix
II. RUTTING TEST:-
Wheel tracking is used to assess the resistance to rutting of asphalt materials under conditions which simulate the effect of traffic.
A loaded wheel tracks a sample under specified conditions of speed and temperature while the development of the rut is monitored continuously during the test. The rut resistance can be quantified as the rate of rutting during the test or the rut depth at the conclusion of the test.
Graphical representation of rutting test
Test specimens can be either slabs prepared in the laboratory or 20cm diameter cores cut from the highway.
COMPARISON BETWEEN ORDINARY BITUMINOUS ROADS AND WASTE PLASTIC BITUMINOUS ROADS:-
SL. NO PROPERTIES PLASTIC ROAD ORDINARY ROAD
VALUE MORE LESS
2. BINDING PROPERTY BETTER GOOD
3. SOFTENING POINT LESS MORE
4. PENETRATION VALUE MORE LESS
5. TENSILE STRENGTH HIGH LESS
6. RUTTING LESS MORE
7. STRIPPING(POT HOLES) NO MORE
8. SEEPAGE OF WATER NO YES
9. DURABILITY OF THE ROADS BETTER GOOD
10. COST OF PAVEMENT LESS NORMAL
11. MAINTENANCE COST ALMOST NIL MORE
12. ENVIRONMENT FRIENDLY YES NO
ADVANTAGE OF WASTE PLASTIC BITUMINOUS MIX:-
1) Stronger road with increased Marshall Stability Value
2) Better resistance towards rain water and water stagnation
3) No stripping and no potholes.
4) Increase binding and better bonding of the mix.
5) Reduction in pores in aggregate and hence less rutting and raveling.
6) No leaching of plastics.
7) No effect of radiation like UV.
8) The strength of the road is increased by 100%.
9) The load withstanding property increases. It helps to satisfy today's need of increased road transport.
10)For 1km X 3.75m road, 1 ton of plastic (10 lakh carry bags) is used and 1 ton of bitumen is saved.
11) Value addition to the waste plastics (cost per kilogram increases from Rs 4 to
12) The cost of road construction is also decreased.
13) The maintenance cost of road is almost nil.
14) Disposal of waste plastic will no longer be a problem.
15) The use of waste plastics on the road has helped to provide better place for burying the plastic waste without causing disposal problem.
BENEFITS OF WASTE PLASTIC ROADS:-
• Environmental benefits
• MSWM (Municipal Solid Waste Management)
• Employment Generation
• Farming Community
• National Economy
Today, plastic waste treatment is largely hazardous to the environment as most of the plastic is burnt resulting is toxic gases being released in the environment.
By effectively managing the collection, separation and processing of plastic waste, the environmental damages can be limited by eliminating the waste from our streets.
We can have international standard roads and pavements which are litter free
MSWM (MUNICIPAL SOLID WASTE MANAGEMENT):-
House holds and other units wrap all garbage into plastic bags and dispose them. The non-biodegradable plastic bags acts like a covering on the garbage preventing it from being converted into compost.
At present only 20% of the MSW is converted into compost. This can be considerably increased to 80-85% and more by systematically managing the plastic waste.
One of the foremost areas that would directly benefit is agriculture.
At present only 20% of MSW is converted into compost. This can be converted to 80¬85% once the plastic from the MSW is segregated.
Farmers can directly purchase from MSWM if plastic separated.
Cumulative benefits to the National Economy -Environmental -Employment generation -Agricultural efficiency
When life of a road is doubled, then the savings that accrue to the national exchequer are in thousands of crores.
Segregating the plastic from the MSW at the municipal yard involves application of resources, the cost of which runs into crores of rupees. A substantial amount of this can be saved.
The Central Government's annual allocation of funds towards roads and highways is approx.