WASTE MANAGEMENT

Presented by I.Priyadharshini M.RathnavathiTRP Engineering College

CONTENT

• INTRODUCTION• WHAT’S AN E-WASTE?• WHY TO CARE OF E-WASTE?• E-WASTE A CONSTITUENT FOR PAVEMENT

WITH LOW TRAFFIC• E-WASTE USED IN CONTRUCTION• BENEFITS OF THESE METHODS• CONCLUSION

INTRODUCTION

Waste management is the process in which the waste that are being generated by living organisms , machines, industries, etc are collected , transported and properly disposed.

E-Waste E-waste is a popular, informal name for electronic products

nearing the end of their “useful” life. E-waste has been categorized into three main categories, i.e.,

Large Household Appliances, IT and Telecom and Consumer Equipment.

Why to care of e-waste?

HARMFUL TOXICS IN E-WASTE

CAUSES

Mercury Brain and kidney damageArsenic Negative impact of skin , liver ,nervous and respiratory

system

Cadmium Defects in cognition , learning , behavior and neuromotor skills of the children and the kidney damage also

Chlorine Tissue damage and destruction of cell structureBromine Brain damage and cancerlead Damages the reproductive ,blood ,and nervous system

•These waste materials are disposed by incineration or landfill.•It causes land water and air pollution.•The e-waste disposed has the following hazardous materials and shows effect on humans.

E-WASTE ON PAVEMENT WITH LOW TRAFFIC

cement: PPC cement used with 8% as

fineness

FA: The maximum size of FA was taken to

be 4.75 mm. The testing of sand was

done as per IS: 383-1970.

CA: IERA (Integrated e- waste and the recycled coarse

aggregate)

E-waste: PCB boards are used as e-waste. Since the e-waste are of irregular shape and irregular size they are cut by using marble cutter The e-waste passing 20 mm sieve and retained on the 10mm sieve is collected and used in the preparation of concrete mix.

• (C1): Conventional aggregate; Standard mix • (C2): 5% e-waste + 95% recycled CA as replacement of conventional

aggregate. • (C3): 10% e-waste +90 % recycled CA as replacement of aggregate. • (C4):15% e-waste + 85 % recycled CA as replacement of aggregate. • (C5): 20% e-waste +80% recycled CA as replacement of aggregate.

Proportions of material for different combinations Combination

For 1 M3 of Concrete

CEMENT WATER RCA E-WASTE CA FA C1 394 197 0.00 0.00 988.52 753.50 C2 394 197 731.45 37.64 0.00 753.50 C3 394 197 692.96 75.27 0.00 753.50 C4 394 197 654.46 112.91 0.00 753.50 C5 394 197 615.96 150.55 0.00 753.50

`

TEST RESULTS

Mix 7 Days 28 Days

C1 13.78 21.63C2 13.19 20.59C3 12.59 17.93C4 12.15 16.15C5 10.52 14.07

MIX 7 DAYS 28 DAYSC1 2.75 3.66C2 2.33 3.5C3 1.58 3.75C4 0.75 0.91C5 0.83 2

COMPRESSION STRENGTH IN N/mm²

FLEXURAL STRENGTH IN N/mm²

Specimen after application load

Specimen before application load

E-waste for construction

• E-waste and plastic waste are the major problem in today scenario as these are non-biodegradable.

• E-waste and plastic (from plastic water bottles, water pouches and other plastic material) are grinded to small sizes ( 2mm to 10 mm)

• E-waste and plastic waste can be used with White Cement.• Rubbed against each other to develop a roughness so that

they can bond well with White Cement when mixed with it.. • Experiments done shows that grinded waste in certain

proportion act as a good filler material in concrete.

• Compressive Strength of the concrete Is Increased If The Waste Is Replaced With Fine Aggregate In Concrete.

• It will Reduce Its Cost Of Concrete Production From White Cement.

• It is used in Wall Decorative purposes also stops crack Formation.

• It Is Cheaper And Give Appealing And Aesthetic View To The Things With Durability.

Reference1. Rajiv Gupta, Harish Puppala, Nakka Rajesh (2015) “Application of Recycled Coarse Aggregates and E-Waste for Pavements with Low Traffic “, IOSR Journal of Mechanical and Civil Engineering , Volume 12, Issue 2 Ver. II , PP 64-70