• Download as PPT PDF • 215 likes • 230 808 views R rebina The document discusses the 3Rs of waste management reduce reuse and recycle It provides examples of how to reduce waste through conscious purchasing and using items for multiple purposes Reusing items like jars bags and packaging can extend their lifespan
Recycling involves processing used materials so they can be used again It is important because it reduces the use of raw materials and energy lowers pollution and greenhouse gas emissions The document defines recycling and composting and discusses the importance of the three R s reduce reuse recycle in waste management
3 To achieve sustainable issue in construction area researchers and companies focus on using waste concrete as a new construction material It is called recycled aggregate which can be produced by concrete Crusher The aggregates are categorized by size as coarse and fine aggregate The characteristic of recycled aggregates could be different by
A viable option to utilise mechanically recycled GFRP composites is to incorporate GFRP recyclates into concrete named repurposing GFRP waste in concrete in this paper in the forms of powder fibre and aggregate [9] [15] Recycled GFRP elements are mixed in concrete as a partial replacement of fine and coarse aggregate or as a reinforcing element
The recycling of waste concrete materials in the civil constructions is a critical issue like recycled aggregate concrete is weakly adhered mortar having higher porosity and water absorption
5 WHAT IS RECYCLING Recycling is a process in which waste materials are treated in a way that they can be used again Recycling is a key component of modern waste management and is the third component of the "Reduce Reuse Recycle" waste hierarchy Recyclable materials include many kinds of glass paper metal plastic textiles and
Medical Plastic waste is produced in large quantities in India each year thus recycling it as a constituent in concrete can help to reduce waste disposal The pandemic of Covid 19 has also resulted in increased production of the PP plastic waste and their suitability is tested the impact of employing plastic waste as coarse aggregate
Has been concluded 20% of plastic waste aggregate can be incorporated as coarse aggregate replacement in concrete without any long term detrimental effects and with acceptable strength development properties in cementious mixtures Cement and Concrete Research vol 36 2006 pp 449456 • [20] Plastic recycling and
aggregate is called recycled aggregate concrete RAC Recycling concrete is a viable option to decrease the demand on high quality natural resources and to limit the amount of waste that is disposed in landfills Recycled concrete has been primarily used as a unbound material in embankments bases and sub bases
In concrete all their ingredients are partially or fully replaced by many waste materials like Cement is replaced by Fly Ash Rice Husk Ash Wheat Straw Ash etc Fine aggregate is replaced by Saw Dust Ash Quarry Fines and Glass Powder etc Andcoarse aggregate is replaced by cockle shell tire rubber recycle aggregate etc
4 Coconut Shell CS are not commonly used in the construction industry but are often dumped as agricultural wastes Coconut is grown in 92 countries with a global production of 51 billion nuts of which India produces 9500kt of coconut In India industries and informal sectors recycle about 15 20% of solid waste in various building material
to recycle the waste coarse aggregate available in abundance and to reduce the advers e impact on environment by a voiding the use of virgin aggregates [22 23] Hence an experimental
10% partially plastic waste replaced concrete 20% partially plastic waste replaced concrete 30% partially plastic waste replaced concrete % of plastic waste replacement design mix C CEMENT FINE AGGREGATE COARSE AGGREGATE WATER l/m3 W/C SAND PLASTIC Weight kg Volume kg/m3 Weight kg
AMNS IIT Gandhinagar PPT Formatted 1 Free download as Powerpoint Presentation ppt / pptx PDF File pdf Text File txt or view presentation slides online Sk Tripathi gave a presentation at the Indian Institute of Technology Gandhinagar about industrial waste management challenges and opportunities He discussed ArcelorMittal Nippon Steel
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
This is because the clay minerals in the waste brick aggregate are soft and easy to grind With the same fineness the average particle size of the recycled brick powder is smaller and the grading is better Open in a separate window Figure 6 Regarding construction waste recycling China has been vigorously promoting waste classification
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
recycling concrete aggregate RCA a preferred option The use of RCA to conserves natural aggregate &IJERT the associated environmental cost of exploration & transportation waste minimization & reducing the burden on landfills is a global issue Extensive research has been carried out worldwide
Although recycling and re use are good alternatives to waste disposal in Europe and the USA for example only 30% of the total CDW volume is consigned to recycling [13] This rate is even lower in some countries such as China 5% [7] and Portugal 9% [14] In Brazil a survey carried out in 2011 showed that CDW recycling plants operating at maximum capacity
Free download as Powerpoint Presentation ppt / pptx PDF File pdf Text File txt or view presentation slides online The document summarizes research on using recycled concrete aggregates in rigid pavements It discusses advantages like cost savings
The concrete waste was collected from the waste yard in the college campus segregated crushed in jaw crusher sieved washed and used for concreting for a mix proportion of M25 as a replacement
The drive towards circular economy in achieving sustainable concrete cannot be overemphasized The recycling of waste tiles from the ceramic industry demolished buildings or during the construction process could be one way of solving the waste generated from ceramic tiles This study investigates the use of waste ceramic tiles as coarse aggregates in concrete at
