16. Finally, it was concluded that by reusing and recycling the demolished concrete, a better economy can be achieved without affecting the Environment and taking care of all the concerns. The use of recycled aggregate has been found to be better than that of aggregates for certain applications. The salient points were: • Initial moisture states of RCA is …
Recycled aggregate is produced by crushing concrete, and sometimes asphalt, to reclaim the aggregate. Recycled aggregate can be used for many purposes. The primary market is road base. For information on recycling asphalt pavement into new asphalt pavement. See Asphalt Pavement Recycling. Recycled Aggregate Ppt Download
2. Plastic Waste Management The term "plastic" includes materials composed of various elements such as carbon, hydrogen, oxygen, nitrogen, chlorine, and sulphur. Plastics are macromolecules, formed by polymerization and having the ability to be shaped by the application of reasonable amount of heat and pressure or any other form of forces. It is one of the few …
28. 28 FINENESS MODULUS (F.M): The sum of cumulative percentage of residues retained on each of the Indian standard sieves (80mm,40mm,20mm,10mm,4.75mm,2.36m m,1.18mm,600 …
It has the advantage of reduction of cost and it also serve as a mean of disposal or say recycling of waste. If structural light weight concrete can be developed from coconut shell, it would a great achievement for construction industry. ... In the following paper the normal weight aggregate has been replaced by coconut shell aggregate and ...
2. Recycling Recycling is a process to change waste materials into new products to prevent the wastage of potentially useful materials, reduce the consumption of fresh raw materials, reduce energy usage, reduce air pollution and water pollution by reducing the waste disposal. Recycling is an useful key component of modern waste reduction system.
It finds that Queensland is recycling only 42% of construction waste, compared to over 90% in Denmark and other countries. The presentation recommends that Queensland implement policies like landfill levies, recycling bans, and mandates for source separation to increase recycling rates as done successfully in other regions. Read less
18. CONCLUSION • It has been established that materials & components from demolished buildings are being reused for new construction works as well as renovation projects, especially by low- income communities in developing countries. • As sorting and recycling facilities become more it will be easier to redirect our waste from landfill. • In order to reduce …
One solution to this crisis lies in recycling waste into useful products. It is try to match society need for safe and economic disposal of waste material with highway industry need for better and more cost effective construction material. ... STEP – 5 :- The plastic waste coated aggregate is mixed with got bitumen and the resulted mix is ...
The document summarizes research on using recycled concrete aggregates in rigid pavements. It discusses advantages like cost savings and environmental benefits. It also notes potential disadvantages like reduced strength.
A complete PPT on E-Waste. PPT: E-waste or Electronic Waste is the inevitable by-product of a technological revolution. Driven primarily by faster, smaller and cheaper microchip technology, society is experiencing an evolution in the capability of electronic appliances and personal electronics.E-waste is the most rapidly growing waste problem in the world.
Only 15-20% of e-waste is recycled, with the rest going to landfills and incinerators. This improper disposal has negative effects on human and environmental health as electronics contain toxic heavy metals. Recycling e-waste through sophisticated processes recovers valuable and scarce materials like gold, silver, and lead while avoiding pollution.
Worldwide, cities generate about 1.3 billion Tonnes of solid waste per year. Building materials account for about half of all materials used and about half the solid waste generated worldwide. The waste, generated in the construction, maintenance, repair and disposal phases of a building, is called Construction and Demolition (C&D) Waste.
3. INTRODUCTION Recycling is the act of processing the used material for use in creating new product. Aggregates obtained from recycling of construction and demolition waste. Recycled aggregate are comprised of …
The utilization of recycled aggregate is particularly very essential as major part of concrete is made of aggregates. Most of waste materials produced by demolished structures disposed off …
4. Paper recycling is the process of turning waste paper into new paper products. There are three categories of paper that can be used as feedstock for making recycled paper mill broke, pre- consumer waste and postconsumer waste. Convert wastes into reusable material. Recycling is a form of reuse that requires changing or reprocessing an item or natural resource.
• The waste plastic gets coated over the surface of aggregate by heating (140˚C - 160˚C) as plastics like PE, PS, PP used in PET Bottles, disposal glasses, handbags, etc soften up to 160˚C. ... • This is an effective technique of plastic waste recycling as no fuel consumption takes place. • Use of waste plastic in bitumen increase the ...
Food waste can be recycled in several ways. Over 1.3 billion tons of food is wasted annually according to the UN Food and Agriculture Organization.
6. Recycling is a process of collecting waste for disposing and re-use. We can implement separation and recovery according to the nature of the waste, or the nature of the industry. Such as mining and industrial waste, mainly is scrap metal; life waste types are complex, organic, inorganic products, metal products, etc. In order to improve waste …
EARLY AGE COMPRESSIVE AND TENSILE STRENGTH DEVELOPMENT OBJECTIVE Determine how SCC strategies… high paste content VMA (thickeners) smaller …
4. Why recycling should be done? Recycling is one of the best ways for you to have a positive impact on the world in which we live. Recycling is important to both the natural environment and us. We must act fast as the amount of waste we create is increasing all the time. The amount of rubbish we create is constantly increasing because: Increasing wealth …
It is estimated that the annual generation of waste tyres amounts to 1.5 billion whole-tyres worldwide (Mashiri et al., 2015); contributing to the huge number of tyres already found in landfill and stockpiles.In Australia, approximately 51 million tyres are disposed of annually (Mountjoy et al., 2015), and this is likely to increase proportionally with the present population …
The document discusses recycling processes and benefits. It explains that recycling involves collecting, sorting, cleaning and processing materials like glass, plastic and metal to manufacture new products. Recycling reduces waste in landfills and the environmental impacts of extracting raw materials while also lowering carbon dioxide emissions.
C and d waste ppt - Download as a PDF or view online for free ... As the volume of demolition waste is huge allowing the waste to be crushed, processed, & reused as aggregate in building works. The recycling of …
4. Principle of Material Recovery Facility • Mixed solid waste are separated based on their source for recovery of materials. • The process depends on degree of source separation of waste. • The nature and design of each unit process accommodate the physical and chemical characteristics of the source material.
9. Source Reduction To have little or even zero waste Source Reduction is generally the first step that should be considered in an integrated waste management system e.g. avoiding waste generation, internal reuse of …
Solid waste management ppt - Download as a PDF or view online for free. ... Recycling refers to the collection and refuse of waste materials such as empty beverage container. The materials from which the items are made …
Construction and demolition waste recycling - Download as a PDF or view online for free ... Main points of this PPT: • An overview of the concept on Waste management. • Brief description on "Recycled Concrete Aggregates". ... Special care is necessary when using fine RCA. Only up to 10 to 20 percent fine RCA is beneficial. The aggregate ...
Complete plant can be dismantled and reinstalled in 5 days (not including the transportation period). Plant,Recycle Asphalt Plant. 1. The pure modular structure of the hybrid building …
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The document discusses methods for waste disposal and management, focusing on reducing, reusing, and recycling (the 3 Rs). It defines recycling as processing used materials into new products, which prevents waste and reduces environmental impacts. It provides examples of materials that can be recycled like glass, paper, plastics, and metals.
21. CONCLUSION Green concrete having reduced environmental impact with reduction of the concrete industries CO2 emissions by 30%. Green concrete is having good thermal and fire resistant. In this concrete recycling use of waste material such as ceramic wastes, aggregates, so increased concrete industry's use of waste products by 20% . Hence …
This paper reports the basic properties of recycled fine aggregate and recycled coarse aggregate & also compares these properties with natural aggregates. Basic changes in all …
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The document defines recycling and composting and discusses the importance of the three R's - reduce, reuse, recycle - in waste management. Common recyclable items include metals, glass, plastics, paper, electronics, and some compostable food waste.
The document discusses proper waste management techniques including reducing, reusing, and recycling waste materials. It explains the 5S principles of sorting, straightening, sweeping, standardizing, and sustaining as ways to organize the workplace and reduce waste. The document also provides learning tasks and activities for students to ...
