Construction and demolition waste recyclingAnand Vallala
Now a days as the construction is increasing the demolition waste from the buildings is also increasing. We have to increase the usage of waste materials and to help for the future generation.
Construction activities generate millions of tonnes of Construction and Demolition (C&D) waste materials each year. These materials contain a lot of reusable materials. If not properly managed, they will become wastes, a burden to the society, which will be extremely expensive to handle and will occupy precious landfill space.
Now even for small projects it has been made mandatory to use Ready mix concrete or compulsory use of Batching plant. However, except for large projects and some industrial projects, Demolition of structures is not yet mechanised. This waste is also affects the air, noise pollution in the form of releasing dust and noise respectively.
Recycling can turn the waste materials into usable products, which can help conserve our natural resources for our next generations and for the sustainable development of the society. In the recent years, C&D waste management issues have attracted the attention from researches around the world.
The ultimate aim is to create the awareness among the Civil Engineers is to do the research on this topic and to reuse these materials.
Main points of this PPT:
• An overview of the concept on Waste management.
• Brief description on “Recycled Concrete Aggregates”.
• Waste reduction and Reuse.
• Demolition techniques.
• Use of proper Waste Management plan.
Concrete is a major waste in construction Industry. It needs to be recycled to make a waste free environment. So how concrete is recycled, which type of concrete can be recycled, where it can be used is mentioned in this ppt.
Construction and demolition waste recyclingAnand Vallala
Now a days as the construction is increasing the demolition waste from the buildings is also increasing. We have to increase the usage of waste materials and to help for the future generation.
Construction activities generate millions of tonnes of Construction and Demolition (C&D) waste materials each year. These materials contain a lot of reusable materials. If not properly managed, they will become wastes, a burden to the society, which will be extremely expensive to handle and will occupy precious landfill space.
Now even for small projects it has been made mandatory to use Ready mix concrete or compulsory use of Batching plant. However, except for large projects and some industrial projects, Demolition of structures is not yet mechanised. This waste is also affects the air, noise pollution in the form of releasing dust and noise respectively.
Recycling can turn the waste materials into usable products, which can help conserve our natural resources for our next generations and for the sustainable development of the society. In the recent years, C&D waste management issues have attracted the attention from researches around the world.
The ultimate aim is to create the awareness among the Civil Engineers is to do the research on this topic and to reuse these materials.
Main points of this PPT:
• An overview of the concept on Waste management.
• Brief description on “Recycled Concrete Aggregates”.
• Waste reduction and Reuse.
• Demolition techniques.
• Use of proper Waste Management plan.
Concrete is a major waste in construction Industry. It needs to be recycled to make a waste free environment. So how concrete is recycled, which type of concrete can be recycled, where it can be used is mentioned in this ppt.
This presentation will give the brief introduction to the specifications, its different types along with link to example of detailed specifications. Specifications of buildings and roads are discussed.
ALTERNATE BUILDING MATERIALS & TECHNOLOGICAL ALTERNATIVES IN CONSTRUCTIONRajesh Kolli
Construction and civil engineering activities have experienced a rapid growth due to improvements in procurement of building materials.
However, the current scenario in the developing construction industry has posed many challenges due to some unsustainable aspects of the highly polluting and the exhaustive nature of building materials.
At the same time, it has also created opportunities for innovative and unconventional resources to emerge due to the widening gap in demand and supply of building materials, as well as the need for energy efficient and economical methods of construction.
EXPERIMENTAL INVESTIGATION OF RECYCLED AGGREGATE CONCRETE USING PRE-SOAKED SL...IAEME Publication
The present experimental study deals with pre-soaked slurry two stage mixing approach
(PSTSMA) for achieving best mechanical properties. The Recycled aggregate was used in three
variant as 30%, 50% and 100% replacements of Natural aggregate in M40 grade of concrete.
Through experimental study and analysis, it is observed that using PSTSMA the replacement of
30% RCA with natural coarse aggregate does not more affect the characteristics of concrete.
PSTSMA method improve up to 6.35% the strength of recycled aggregate concrete made up of
recycled aggregate at 28 days respectively w.r.t. Normal Mixing Approach(NMA). It is observed
that concrete prepared with PSTSMA gives better properties than concrete with NMA.
International Journal of Engineering Research and Applications (IJERA) aims to cover the latest outstanding developments in the field of all Engineering Technologies & science.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
This presentation will give the brief introduction to the specifications, its different types along with link to example of detailed specifications. Specifications of buildings and roads are discussed.
ALTERNATE BUILDING MATERIALS & TECHNOLOGICAL ALTERNATIVES IN CONSTRUCTIONRajesh Kolli
Construction and civil engineering activities have experienced a rapid growth due to improvements in procurement of building materials.
However, the current scenario in the developing construction industry has posed many challenges due to some unsustainable aspects of the highly polluting and the exhaustive nature of building materials.
At the same time, it has also created opportunities for innovative and unconventional resources to emerge due to the widening gap in demand and supply of building materials, as well as the need for energy efficient and economical methods of construction.
EXPERIMENTAL INVESTIGATION OF RECYCLED AGGREGATE CONCRETE USING PRE-SOAKED SL...IAEME Publication
The present experimental study deals with pre-soaked slurry two stage mixing approach
(PSTSMA) for achieving best mechanical properties. The Recycled aggregate was used in three
variant as 30%, 50% and 100% replacements of Natural aggregate in M40 grade of concrete.
Through experimental study and analysis, it is observed that using PSTSMA the replacement of
30% RCA with natural coarse aggregate does not more affect the characteristics of concrete.
PSTSMA method improve up to 6.35% the strength of recycled aggregate concrete made up of
recycled aggregate at 28 days respectively w.r.t. Normal Mixing Approach(NMA). It is observed
that concrete prepared with PSTSMA gives better properties than concrete with NMA.
International Journal of Engineering Research and Applications (IJERA) aims to cover the latest outstanding developments in the field of all Engineering Technologies & science.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Utilization of industrial waste in the construction industryeSAT Journals
Abstract Utilization of industrial waste in construction industry. This experimental work is an effort to try to develop the awareness & importance of industrial waste management & its utilization in productive manner among the people. In today’s more environmentally-Conscious world, a more responsible approach to the environment is to increase the use of by-products of one industry which is disposed off as waste as raw material for some other industry. Developed countries have made rapid strides in the utilization of supplementary Cementitious material in cement & concrete. Lack of awareness Consumer preferences, negatives marketing strategies & Lot of miss-understanding among the people have impeded their utilization in our country. In this work I have chosen three industrial wastes for blending with Portland cement Viz. Fly ash, Blast furnace slag & waste of glass industry. All these three waste after grinding properly were blended with ordinary Portland cement in different proportions. Then that of blended cement was tested for various properties of cements such as Fineness, Standard Consistency; Soundness, Setting time & Compressive Strength. As all these three wastes in powder form are of cementitious materials, they are proved to be best when blended with Cement. I have got improved results related to most of the properties of cement as compared to that of ordinary Portland cement. All these wastes prove the slogans true that are “ash to cash” or “refuse to resource” & “wastes to wealth”. In our country annually huge quantities of wastes are produced by the industries. Instead of disposing off these wastes if they are utilized in such a manner then it will provide an eco-friendly Solution, simultaneously solving the problem of pollution. So such waste can be blended with Cement, is the step towards economy & obviously towards progress of the nation. Keywords: - fly ash, ground blast furnace slag, waste glass powder; experiments on blended cement with different proportions of wastes; cost comparison.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
For environmental conservation, the usage of recycled aggregates in concrete may be beneficial. The products for the future are recycled aggregates. The usage of recycled aggregates has been initiated in several European, American, Russian and Asian building ventures. Many nations have relaxed the usage of recycled aggregates with respect to infrastructure rules. This project reports the fundamental characteristics of recycled fine aggregates and recycled coarsely aggregates and contrasts them with natural aggregates. Basic shifts are described in all aggregate properties and their impacts on concreting work are thoroughly addressed. The properties of recycled concrete aggregates are also calculated. Fundamental concrete properties such as compressive power, bending strength, operability and so for the numerous combinations of recycled aggregates and natural aggregates are discussed here. Codal recommendations for recycled concrete aggregates in different countries are listed here, with their influence on concretion function. In general, the existing state of recycled aggregates in India along with their potential needs and use are addressed here. Prince Kumar | Ajay Singh | Swati Dhiman "Mechanical Properties of Recycled Aggregate" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd42581.pdf Paper URL: https://www.ijtsrd.comengineering/civil-engineering/42581/mechanical-properties-of-recycled-aggregate/prince-kumar
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
Prevalence of Toxoplasma gondii infection in domestic animals in District Ban...Open Access Research Paper
Toxoplasma gondii is an intracellular zoonotic protozoan parasite, infect both humans and animals population worldwide. It can also cause abortion and inborn disease in humans and livestock population. In the present study total of 313 domestic animals were screened for Toxoplasma gondii infection. Of which 45 cows, 55 buffalos, 68 goats, 60 sheep and 85 shaver chicken were tested. Among these 40 (88.88%) cows were negative and 05 (11.12%) were positive. Similarly 55 (92.72%) buffalos were negative and 04 (07.28%) were positive. In goats 68 (98.52%) were negative and 01 (01.48%) was recorded positive. In sheep and shaver chicken the infection were not recorded.
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
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3. Vision
– A sustainable world where our natural environment is preserved.
Mission
– To reduce waste materials to their highest and best use.
Objective
– To encourage the recycling and reuse of C&D debris.
3
4. INTRODUCTION
o Construction waste recycling is the separation and recycling of
recoverable waste materials generated during construction and
Demolition (C & D).
o C&D waste in India in 2010 may be estimated as 24 million
tones.
4
5. Composition of MSW Mixed Residue
1.1%
Paper
21%
Glass
2.3%
Metal
8%
Electronics
1.2%
Plastic
9.5%Construction &
Demolition
21.7%
Organic
30.2%
Household
Hazardous
0.2%
Special
Waste
5%
Waste materials %
Mixed Residue 1.1
Paper 21
Glass 2.3
Metal 7.7
Electronics 1.2
Plastic 9.5
Construction & Demolition 21.7
Organic 30.2
Household Hazardous 0.2
Special Waste 5.1
5
6. Composition of Construction & Demolition waste
6
35%
2%
5%
30%
2%
25%
1%
0%
5%
10%
15%
20%
25%
30%
35%
40%
Soil,sand Wood Metal Brick &
measonary
Bitumen Concrete Other
%
WASTE MATERIAL
7. Sl. No. Type %
1 New Construction 10
2 Renovation 40
3 Demolition 50
New
Construction
10%
Renovation
40%
Demolition
50%
7
8. Waste generated from construction industry
Inert material
Rocks, Concrete, Bricks, Stone, Earth.
Non inert material
Plastic, Packaging waste, Paint.
On site waste sorting
• segregate inert and non-inert materials
• segregate materials such as Paper, plastic, timber, metals, masonry, concrete
and excavated soil
8
9. Benefits of reducing of Concrete waste
– Reduce cost of aggregates
– Reduce disposal cost
– Environmental degradation prevented
– Reduce consumption of natural resources
– Life span of landfill area will increase
Concrete
Concrete is a mixture of sand, cement, aggregate, water, & admixtures
9
11. Stone/Marbles
How the waste is generated ?
The stone/marble which came from the quarry was not of a perfect size
and shape which is likely to be used in work, so we have to cut the
stone/marble in desired shape and size as per our requirement. After
cutting the excess portion has no further use hence waste is generated .
11
12. Reuse of the waste
oIn most cases the stone waste is used as filler material in road construction.
oThe marble waste sometimes used in terrazzo flooring.
oIf there is no reuse of stones/marbles they are dumped/sell to other agencies.
12
13. Timber
How the Waste is generated?
•Timber is generally used as framework for building concrete structures,
with passage of time it become soft due to contact with moisture of
concrete.
13
15. Reuse of the waste
oIt is mostly crushed into chip & used as fuel.
oIt can be utilized to manufacture wood-chip concrete by injecting
cement grout into voids of compacted wood-chips in moulds.
oWood-chip concrete can be used as building material.
15
16. Sand
How the waste is generated ?
o The sand which came from the quarry was not of a perfect size which is
likely to be used in work, so we have to sieve as per our requirement.
o After sieving the remaining sand has no further use hence waste is
generated.
16
17. Steel
How steel waste generate ?
o Most of steel waste is generated during demolition, around 70% to
80% of all steel waste.
o Due to corrosion.
o Waste in terms of bent Nail.
o Small Pieces of G.I. pipes.
17
19. Brick
How waste generate?
o The Brick Waste is generated in the form of Bats and Small Pieces
o While loading from the manufacturing unit to the unloading at the Site,
there is possibility where the Bricks get broken and turn into bats and
the small pieces
19
21. Plastic
How plastic waste Generate?
• Cement bag
• Cover material for flooring
• Pieces of pipe.
P.O.P
How P.O.P waste generate?
• During ceiling work.
Ceramic
How it generate?
• During transport .
Reuse of plastic waste
• Joint the plastic bags of cement & use as
curtain for protection of neighbour property.
Reuse of P.O.P waste
• It only use as filler.
Reuse of it
• For flooring of terrace as a china mosaic.
21
23. Summary:
o 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 like India.
o In developing countries most of the demolition rubble is dumped, the
developed world has now started to recycle it into aggregate for non-
structural concrete.
23
24. o Reducing consumption of natural resources like energy & reduces
usage of landfills.
24
26. REFERENCES
•Vilas and Guilberto (2007). “Construction and Demolition Waste Management: Current Practices in Asia.” International
Conference on Sustainable Solid Waste Management, Chennai, India.
•Shukla, G. (2008). www.brandfaqs.blogspot.com/2008/05/Dubai Registers-163-Percent-Growth-In.html.
•Government of India (2007). “11th Five Years Plan (2007-2012).” Planning commission, India.
www.planningcommission.nic.in/Plans/Planrel/Fiveyr.
•Market research. (2006). “Construction Materials in India.” www.internationalbusinessstrategies.com.
•TIFAC, Ed. (2000). “Utilization of Waste from Construction Industry.” Department of Science & Technology, New Delhi.
•Laskar, A. and Murty, C.V.R. (2004).
“Challenges before Construction Industry in India.” www.iitk.ac.in/Nicee/Rp/2004_Challenges_
Construction_Industry_Proceedings.Pdf.
•Government of India (2002). “10th Five Years Plan (2002-2007).” Planning commission, India.
www.planningcommission.nic.in/Plans/Pla nrel/Fiveyr/10th/Volume2/V2_Ch7_7.Pdf.
•Wildermuth, B. (2008). “India - A Building
Industry in Transition.” Construct 06.2008: 21-28.
•Ministry of Environment and Forest (MOEF).(2000). www.envfor.nic.in/legis/hsm/mswmhr.html.
• Pappu, A., M. Saxena, et al. (2007). “Solid Wastes Generation in India and their Recycling Potential in Building
Materials.” Building and Environment 42:
2311-2320.
• Singhal S. and Pandey S. (2001). “Solid Waste Management in India: Status and Future Directions.” TERI Information
Monitor on Environmental Science 6(1), 1-4.
• Chini, A. and Bruening, S. (2005). “Deconstruction and Materials Reuse in the United States.” A. Chini Editor,
International Council for Research and Innovation in Building Construction (CIB), Publication 300. 26