AU2020102728A4 - APIC- Recycling C&D Waste: Automatic Process for Recycling C&D Waste Including Concrete Part and Convert Useful Material - Google Patents

Abstract

Our invention "APIC- Recycling C&D Waste "is a method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The invented technology also the mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt. The invented technology also the fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 5 to 6 inches in at least one direction. The invented technology also the recycler may incorporate the fines into a concrete mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc. The invented technology also the method of recycling construction and demolition debris produces a product useful in earth engineering applications, including landfills, soil stabilization and roadbeds. The invented technology also the method involves wet shredding construction and demolition debris into a moist shredded product and applying the product as daily cover for a landfill, or in a roadbed, or as a soil stabilizer or nutrient. A landfill design using the recycled product is also disclosed. 17 FIG.1: CONSTRUCTION WASTE RECYCLING. alf mnamsk C&D vwage Bar TroelangAr ana Fceeing.2 DPSE OF CO STRUCTION ASTEicaio RECYCLING.

Description

FIG.1: CONSTRUCTION WASTE RECYCLING.

alfmnamsk

C&D vwage Bar TroelangAr ana Fceeing.2 DPSE OF CO STRUCTIONASTEicaio RECYCLING.

APIC- Recycling C&D Waste: Automatic Process for Recycling C&D Waste Including Concrete Part and Convert Useful Material

FIELD OF THE INVENTION

The invention "APIC- Recycling C&D Waste" is related to Intelligent Process for Recycling C&D Waste Including Concrete Part and Convert Useful Material and a method for recycling construction and demolition fines, and to a recycled product formed from such fines.

C&D: Construction and Demolition Waste Recycling.: Construction and Demolition (C&D) Waste comprises of the debris generated during construction and demolition activities. Every time when buildings and civil-engineering structures are built, renovated or demolished a sizable amount of C&D Waste is generated. This waste often includes a variety of material depending on how and where it was generated including concrete, metals, bricks, glass, plastics, organics, etc.

BACKGROUND OF THE INVENTION

In recent years many environmental concerns have been raised concerning the disposal of solid waste material. Landfills that have accumulated sold waste are running out of space. Many landfills have been shown to be the source or site of toxic waste that has spread to the surrounding communities, or have been suspected or feared of harboring and spreading toxins. Moreover, natural resources have been used up and discarded in solid waste facilities, raising concerns that these natural resources are becoming scarce or are in short supply.

As a result, there is growing interest in efforts to recycle solid waste materials. Building and road construction and building demolition produce a considerable amount of waste, known in the trade as construction and demolition (C&D) debris. C&D debris includes a wide variety of materials, including concrete, bricks, mortar, masonry, asphalt, metals, plastics, glass, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt, and other materials.

In some areas, concrete is being successfully recycled. The larger pieces of concrete are sorted out from the debris and crushed to form recycled concrete aggregate (RCA), which is recycled to form recycled aggregate concrete (RAC). Japanese Patent No. 2002-053362, published Feb. 19, 2002, is representative of this approach (see the Abstract, "reutilization of concrete debris", "steps of: recycling concrete debris", etc.). The smaller RCA fines are sometimes recycled to form mortar or other masonry products. Similarly, larger pieces of glass, metal, paper, and drywall may be sorted from the debris and recycled. However, inevitably there is a residue of finer particles resulting from the crushing, shredding, or grinding of the C&D debris that has a mixed composition, referred to as C&D debris fines, that heretofore could not be economically recycled and is therefore simply dumped at the landfill for disposal.

The only current uses for C&D debris fines are limited to alternative daily cover (ADC) for landfills, soil beds or road beds, earth engineering uses, and the like. Even use for these purposes is sometimes problematical. For example, it has been estimate that C&D debris fines contain about 20% drywall by weight. Drywall contains gypsum (calcium sulfate), which is often converted to hydrogen sulfate when used as ADC in landfills. The resulting odor, similar to rotten eggs, is noxious, and in high enough concentrations, may leach into the soil and underground water, potentially posing a health hazard or damaging nearby crops or vegetation. Consequently, there is a need for a more economically profitable and environmentally friendly way of recycling C&D fines. Thus, a method for recycling construction and demolition fines solving the aforementioned problems is desired.

PRIOR ART SEARCH

US5173115A*1990-03-201992-12-22: American Reclamation Corporation Asphaltic concrete product and a method for the fixation of contaminated soils in the asphaltic concrete. US5223031A*1988-08-041993-06-290:saka Cement Co., Ltd. Cement/asphalt mixtures and processes for preparation of the same. US5288171A *1992-04-201994-02-22:Recovermat Technologies, Inc. Method of recycling construction and demolition debris. US5333738A1989-02-041994-08-02:Maschinenfabrik Bezner Gmbh & Co. Kg Process and installation for recovering valuable materials, in particular from waste material on building sites. US5350451A *1991-07-081994-09-27:Patterson Eric W Building material made from waste paper and method for producing the same. US5445330A1994-05-031995-08-29:Integrated Construction Engineering Systems Inc. Mobile crushing plant. US5525153A*1995-04-041996-06-11:Cosola; Michael Ready mixed cement product incorporating material from construction and demolition debris. US5647545A1995-10-181997-07-15:hio Machinery Co. Portable crusher for concrete. US3113014A*1960-09-071963-12-03:Internat Vibro Inc Method of processing waste material. US3826437A *1973-02-161974-07-30:Ecolo Tech Inc Demolition mill US4813618A *1987-10-021989-03-21:Cullom James P Apparatus and method for sorting demolition debris. US4834300A*1988-03-071989-05-30:Wojciechowski Christopher R Method and apparatus for solid waste disposal.

US4877531A*1988-11-071989-10-31:Burkett Albert L Process for treating various refuse materials, particularly smoke, garbage and sewage US5048764A *1989-11-061991-09-17:Flament Gregory Apparatus for comminuting solid waste. US5054962A*1988-12-151991-10-08Bayer Aktiengese 11 chaft Process for sealing the surface of dumps. US5152467A*1991-09-041992-10-06Hwang Ching Long Machine for reducing the volume of a bundle of rubbish.

OBJECTIVES OF THE INVENTION

1. The objective of the invention is to a method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete? 2. The other objective of the invention is to the invented technology also the mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt. 3. The other objective of the invention is to the invented technology also the fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like and also the fines may range in size from microns up to 5 to 6 inches in at least one direction. 4. The other objective of the invention is to the invented technology also the recycler may incorporate the fines into a concrete mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc. 5. The other objective of the invention is to the invented technology also the method of recycling construction and demolition debris produces a product useful in earth engineering applications, including landfills, soil stabilization and roadbeds. 6. The other objective of the invention is to the invented technology also the method involves wet shredding construction and demolition debris into a moist shredded product and applying the product as daily cover for a landfill, or in a roadbed, or as a soil stabilizer or nutrient and also the landfill design using the recycled product is also disclosed. 7. The other objective of the invention is to provides a kind of product that is applicable to the soil engineering, comprises building and demolition debris that recycling is reclaimed. 8. The other objective of the invention is to provides a kind of economy, harmless environment, practicable building and demolition debris processing method.

9. The other objective of the invention is to be used for rubbish disposal site Obducent method every day, comprise according to the invention provides a kind of manufacturing.

SUMMARY OF THE INVENTION

The method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, and dirt. The fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 6 inches in at least one direction. The recycler may incorporate the fines into a dry cement mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc.

The fines may be suspended in the concrete products to form a mixture of materials, or the fines may be chemically altered and incorporated into the concrete, depending upon the composition of the fines and the composition of the concrete. Manufacturing is used for rubbish disposal site obedient method every day. The invention relates to make and be used for rubbish disposal site obedient method every day. Present invention is specifically related to a kind of like this method: i.e. recycling building and demolition debris, make it to become the material that can be used for multiple soil engineering, for example to the everyday of MSW rubbish disposal site or covering regularly, roadbed, soil conservation, soil weathering control etc.

Federation and state environmental regulations requirement are engaged in the staff that health rubbish buries processing and are covered the solid waste of being removed with six inches' thick soil materials termly, so as the control disease, insect, fire, stink, chip fly thing and blow mistake. For example, most of area requires all to cover health rubbish disposal site when every workday finishes, and perhaps degree of covering is more in case of necessity. This covering requirement and cladding material are called as "

covering every day ", if perhaps Gui Ding blanking time more than one day (as three days) then be called " regularly covering ".This paper said " covering every day " is defined as and comprises and be used to cover health rubbish disposal site, MSW (MSW) rubbish disposal site for example, rubble rubbish disposal site, every day and the regular covering of ground cleaning particle rubbish disposal site and industrial waste rubbish disposal site.

The rubbish of every day, waste material or metaling all were capped during end-of-job on the same day, and later rubbish, waste material or metalling then directly are layered on the everyday of proxima luce (prox. luc) on the cover layer. Bury process points at many rubbish, the soil that is used for covering every day must bury process points at rubbish and excavate on the spot, and perhaps from other local buying, because the soil depletion rate is fast, soil just becomes a sizable expense item. And it has been recognized that the rubbish that used multiple soil packing layer has occupied a large amount of preciousness's in this method buries the space, if not this part space originally can be used for placing rubbish, refuse or garrulous bricks and stones. As everyone knows, many areas are promptly used up available rubbish and are buried area, so people just wish that reducing available rubbish buries the depletion rate in space. So the federal and state regulations allow to select for use compressibility better every day of cladding material to replace six inches' thick soil materials, as long as the material of selecting for use can provide the necessary protection level.

Known in this respect have some kinds can be for this class cladding material every day of selecting for use. In a kind of optional material (being published in U.S. Patent No. 4,519,338), be made of the plastic foam covering of people such as Kramer application by solidifiable, it is sprayed onto on the refuse. Equally; some companies; 3M environmental protection product company as Minnesota State Paol str.; the Chubb Environmental security company of Pennsylvania Rxton and the Russmer company of Pennsylvania Westchester; be sprayed at every day on the rubbish surface but all developed, thereby play the foamed artificial of covering effect every day.

Obducent shortcoming every day that this foam sprays is to be used to provide the high pressure injection device of foam can dispel the waste material that will cover. In addition, foam jet liquid is very expensive, and general every square feet of 12-15 cent is in fact more expensive than earth. And weather limits as heavy rain or extreme cold and strong wind, has both hindered the formation of foam deck also to hinder its effect.

Another shortcoming that foam covers substitute every day is that it is not easy to make with salvage material. Society has increased utilizing the requirement of regenerator greatly to the growing sensitiveness of environmental problem. The state and the urban environment official that control or manage most of rubbish disposal site always especially actively encourage to utilize regenerant. One of advantage of recycling is that refuse has been transformed into useful product, rather than occupies the rubbish that is reducing rapidly and bury and handle the space. Therefore, these officials are just making very big effort, under their government control regenerant are used for garbage disposal, comprise that rubbish buries processing.

The another kind of replacement, be distributed in US Patent No s4 with the method for soil material as covering every day, and 909,667, by the De-Mello application, and

4,927,316, apply for by Acosta. It is flimsy material that De-Mello and Acosta have proposed a kind of face of land fabric, as canvas, when finishing on weekdays it is layered on the working face that rubbish buries processing. Similarly face of land fabric covering every day comprises the Fabrisoil by the Phillips fibre company production of South Carolina Greenville (R)Nonwoven polypropylene face of land fabric, and the Seni-Cover that produces by the Amoto fibre company of Georgia State Atlanta TMPolypropylene face of land fabric. The major defect that face of land fabric covers is that its expense is very high, and every square yard up to 2.25 dollars. In addition, face of land fabric is subjected to hard defects easily, for example tears, punctures etc., needs to replace or repair, and is difficult in use under the harsh weather.

A kind of known to reduce the way that MSW rubbish buries the space be with the MSW chopping, obtains bigger packed density in the processing so that bury at rubbish. An example of this method is published in U.S. Patent No. 4,834,300, is applied for by people such as Wojclechook lsi. Wherein described a kind of MSW being reduced or technical process relatively little, the uniform dried particle of size, thereby made its minimum that takes up space, increased the loading amount of bearing of rubbish disposal site to greatest extent so that mix with the earth of rubbish disposal site. And this treatment process may be acceptable in certain areas concerning building up a MSW rubbish disposal site, but it does not provide most of areas desired every day of covering.

Some areas allow to handle MSW in the mode of chopping and the requirement that do not have to cover every day at a rubbish burial ground. Although this processing method is an acceptable in some occasion, burying to handle to compare with the rubbish that requires cover every day has serious health and environmental gap. Said method do not expound adequately yet with a kind of efficiently, method useful and/or that save the space handles building and demolition debris problem. The rubble brick rubbish disposal site that generally is used for handling building and demolition debris has occupied a large amount of available rubbish and has buried the space. Therefore, people are desirable to provide a kind of method of using building and demolition debris that reclaims, in some sense, this method has been eliminated the needs to rubble brick rubbish disposal site, in fact in this method, whole buildings and remove rubbish and can be repeated to utilize, and can be other soil engineering and utilize.

Consider the above-mentioned limitation and the shortcoming of said method, and other shortcoming of above not mentioning especially, obviously also need in this respect a kind of efficiently, expense method feasible, space-saving recovery building and demolition debris, the particularly method that the building that reclaims and demolition debris can be used for various soils engineering effectively. Also need a kind of obedient, more cheap, space-saving and substitute that make by salvage material conventional soil material every day that replaces in addition in this respect. A peculiar purpose of the present invention provides a kind of available every day the covering product and a kind of new, compare with the process structure of front and to have bigger density and constrictive MSW rubbish buries structure.

Utilize shredding machine to handle described particle, a kind ofly have product average particle size, wet, that pulverize thereby make, and water content is enough to allow with the everyday covering of described product as the rubbish disposal site. Comprise with the said goods as every day covering be used for the step of rubbish disposal site. Described average particle size is less than about 6 inches, and described water content is about 5% to 30% of weight. Described average particle size is less than about 3 inches, and described water content is about 10 to 14% of weight. Handle above-mentioned particle with above-mentioned shredding machine and add water afterwards. Handle before the above-mentioned particle the described particle of compacting with above mentioned shredding machine. After handling above-mentioned particle, with ferrous metal isolated step from above-mentioned particle with shredding machine. After handling above-mentioned particle, with non-ferrous metal isolated step from above mentioned particle with shredding machine. Handle before the above-mentioned particle with above-mentioned shredding machine, ferrous metal is added to step in the above mentioned particle. Water is added in the particle, makes water content be about 5% to % of weight.

The invention, above-mentioned purpose is by changing or recycling building and demolition debris, make it to become a kind of can be used for the rubbish disposal site every day covering and the method for the product of other soil engineering realize. Here said and by " building and the demolition debris " of state and city legal regulation institute General Definition, comprise and remove building, road, the bridge particle relevant with other building, reach and/or the particle relevant with construction of buildings.

Building and demolition debris generally comprise, but be not limited to, the ferrous and nonferrous metals, concrete, brick, timber, gypsum and plasterboard, insulating materials, cement, shide and roof Material, floor, wall and ceiling patch block, pitch, glass, pipe and wire, carpet, wallpaper, felt and other append to article on the building with physics mode, comprise minor attachment, fabric in the building, paper or container of paperboard. Whole or whole substantially, so-called " TRADE REFUSE "included particles such as paper, cardboard, carton, paperboard is not got rid of in the above-mentioned definition of building and demolition debris. TRADE REFUSE generally comprises the refuse from office building, commercial undertaking and other commercial enterprise, these local a large amount of paper, papery office typewriting refuses and other old and useless article relevant with commercial enterprise of producing are as wood based panel case and packing material, metal, strapping, plastics, furniture, office equipment and glass.

Therefore, according to this paper definition, building and demolition debris should comprise TRADE REFUSE. What generally do not belong to building and demolition debris is to publilc health or the very harmful material of environment, for example industrial waste or byproduct, paint, tar, solvent, anticorrosive agent, adhesive or the like.

This particle item of being listed especially above being not is whole that possible appear at occasionally in building and the demolition debris. Other particle item may be by accident, limited amount appearing in building and the demolition debris, but this neither changes its fundamental characteristics as building and demolition debris, also do not change rubbish the method according to this invention to the recycling applicability, these are all within consideration of the present invention and scope. Other particle item like this may comprise as tire, brush and branch, rock etc.

The demolition debris of building must leave the place that is commonly referred to rubble " rubbish disposal site in, requires this place to satisfy strict design and job requirements. Yet the method according to this invention, building and demolition debris are transformed into a kind of useful product, and this product can be used for many purposes, covers rather than handles as the rubbish in the rubbish disposal site every day to satellite rubbish disposal site as conduct. This covering every day not only can be used for MSW, ground cleaning particle and rubble rubbish disposal site, but also can be used for having the very industrial waste rubbish disposal site of strict regulations.

Briefly, method of the invention comprises following several steps: remove bulk metal from particle; Remaining particle is pressed into fritter; Again its wet type is chopped into littler particle; Utilize the piece-rate system of magnetic, air and/or water combination that ferrous metal and non-ferrous metal are isolated (selectable) from particle; The particle of wet chopping is dewatered to generate a kind of product that is suitable for purposes noted earlier.

The invention is when every day, covering was used for a rubbish disposal site, with routine, soil property covers to compare and more effectively plays the filter medium effect, thereby obtain a kind of more filtrate of cleaning in the bottom of rubbish disposal site every day. So the product of the inventive method can be used as every day covering and filter medium be used for the rubbish burial ground. This product also can be used as the liquid that filter medium is used for other non-rubbish disposal site application scenario and flows through filter on the other hand, also can be used to filter the liquid stream that rubbish buries.

Further advantages of the invention are that building and demolition debris comprise that the oxide of calcic is the calcium oxide material, as cement, concrete, plasterboard etc. Therefore, the existence of these compositions has advantageously reduced rubbish and has buried the acid degree of the filtrate of process points bottom in cover layer every day. By the building and the product of the present invention that conversion and recycling constituted of demolition debris, can be used as also that novel MSW rubbish that every day, covering was used for building according to the present invention buries the station or health rubbish buries the station. Conversion according to the present invention method novel or recycling building and demolition debris, other is used and also comprises roadbed, particularly interim roadbed, soil conservation and/or soil weathering are controlled, are particularly suitable for when mixing with flying dust or mud as a kind of soil nutrient or table soil, and other soil engineering occasion.

By means of above-mentioned and hereinafter will other purposes tangible, of the present invention, advantage and feature, with reference to following detailed description of the Invention and additional claim and accompanying drawing, this nature of invention just can more clearly have been understood. The method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, and dirt.

The fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 6 inches in at least one direction. The recycler may incorporate the fines into a dry cement mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc. The fines may be suspended in the concrete products to form a mixture of materials, or the fines may be chemically altered and incorporated into the concrete, depending upon the composition of the fines and the composition of the concrete.

BRIEF DESCRIPTION OF THE DIAGRAM

Fig.1: Construction Waste Recycling. Fig.2: Depose of Construction Waste Recycling. Fig.3: Construction Waste is a made for Recycling. Fig.4: complete Recycling process. Fig.5: Demolition Waste Recycling. Fig.6: Demolition Waste Recycling on real time. Fig.7: Demolition Waste Recycling status. Fig.8: Recycling C&D Waste Including Concrete Part and Convert Useful Material. Fig.9: Recycling C&D Waste Including Concrete Part and Convert Useful Material.

DESCRIPTION OF THE INVENTION

The method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, and dirt. The fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 6 inches, preferably up to 3 inches, in at least one direction. The recycler may incorporate the fines into a dry cement mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, piers, wall caps, pavers, site furnishings, stair treads, flowerpots, blocks, bricks, and other applications that require low strength, lightweight concrete.

By adding polymer or other strengthening agents, a higher strength concrete can be produced, which may broaden the range of concrete products that may be formed incorporating C&D fines. The fines may be suspended in the concrete products to form a mixture of materials, or the fines may be chemically altered and incorporated into the concrete, depending upon the composition of the fines and the composition of the concrete. In order to evaluate the viability of the potential applications of concrete incorporating C&D fines, the inventors prepared various mixtures of cement, stone aggregate, sand, and C&D fines. The resulting concrete was tested for strength using conventional tests. The results are shown in the following Table. It will be noted, for example, that a mixture containing 80% C&D fines and 20% cement by volume can produce concrete that is 30% lighter than standard concrete. It will be understood that as the percentage of C&D fines increases, the cost of producing the resulting concrete goes down, since the unit cost of the remaining ingredients is higher than C&D fines while the proportion of the remaining, ingredients required to produce the same volume of concrete goes down.

C&D Waste Hazards:

Construction & Demolition, if not managed properly can be a huge urban menace. C&D Waste is a major source of air pollution. Designated landfill sites are occupying huge real estate and land worth billions of dollars are buried under C&D waste. Rampant illegal dumping in lakes and rivers is also destroying our water bodies.

C&D Waste Recycling:

CDE equipment currently diverts over 17 million tonnes of construction, demolition and excavation waste material from landfill sites every year, creating high-quality sand and aggregates for customers across the world in the process. Our portfolio of C&D waste recycling wet processing projects is the largest in the world, and it includes the world's largest C&D waste recycling wet processing facility in Norway.

From Aruba and New York City to London, Oslo, Paris, and Melbourne, we have delivered over 100 waste recycling projects across the world. 60% of the materials use in the construction industry are non-structural, while 75% of concrete is non-structural. Recycled sand and aggregates have a wide range of uses across a variety of construction applications. By introducing our advanced wet processing systems for constrain, demolition, and excavation waste you can truly realise the value that exists in your waste material.

Recycling C&D Waste:

Our advanced C&D waste processing systems helps you convert this waste into Recycled sand and aggregates that have a range of uses in a variety of construction applications. 1. Maximise the recycling of construction, demolition and excavation waste 2. Maximise the production of high quality, high value recycled sand and aggregates which can be used as a replacement for natural materials in a range of construction applications including concrete and asphalt production 3. Ensure the ability to meet growing demand for sand and aggregates from a sustainable source 4. Protecting sand and aggregate supply in areas where natural reserves are in decline 5. Minimising transport costs for sand and aggregates - recycled materials are typically produced closer to urban centres 6. Reduce the carbon footprint of your processing operation by producing recycled sand and aggregates closer to market

It is only through the introduction of a washing plant for your C&D waste that you will maximise material recovery and maximise the removal of the various contaminants that will otherwise restrict the final destination for your recycled sand and aggregate products.

Customizing your C&D Waste Recycling Plant:

Due to the highly variable nature of construction, demolition and excavation waste each plant we design is built according to the specific requirements of the project. Differing levels of contamination, fines content and variability of input materials (excavation waste, railway ballast etc) requires an individual approach to each and every recycling plant for construction and demolition waste that we build. Each plant we design includes a variety of processing phases depending on your specific requirements: 1. Feeding &pre-screening 2. Aggregate scrubbing 3. Contaminant removal 4. Metals removal 5. Sand washing 6. Aggregate sizing 7. Primary stage water treatment 8. Sludge Management

Benefits of a CDE C&D Waste Recycling Plant:

1) Maximise the recycling of construction, demolition and excavation waste 2) Maximise the production of high quality, high value recycled sand and aggregates which can be used as a replacement for natural materials in a range of construction applications including concrete and asphalt production 3) Ensure the ability to meet the growing demand for sand and aggregates from a sustainable source 4) Protecting sand and aggregate supply in areas where natural reserves are in decline 5) Minimising transport costs for sand and aggregates - recycled materials are typically produced closer to urban centres 6) Reduce the carbon footprint of your processing operation by producing recycled sand and aggregates closer to market

It is only through the introduction of a washing plant for your C&D waste that you will maximise material recovery and maximise the removal of the various contaminants that will otherwise restrict the final destination for your recycled sand and aggregate products.

These contaminants include:

1) Clay 2) Metals 3) Rubber 4) Plastics 5) Organics 6) Paper 7) Polystyrene

Due to the highly variable nature of construction, demolition and excavation waste each plant we design is built according to the specific requirements of the project. Differing levels of contamination fines content and variability of input materials (excavation waste, railway ballast etc) requires an individual approach to each and every recycling plant for construction and demolition waste that we build.

Importance of recycling construction waste:

As per a report published by the TERI, sorting and restoring the C&D waste at their source is the best idea. The waste should be segregated into materials for structure building, materials for road work, building parts that could be salvaged and wastes from site clearances. Further segregation should be conducted among materials such as plastic, cables, glass, wood and plaster board. Materials that have been recycled from demolished masonry and concrete may be used profitably in numerous ways within the construction industry itself. The materials could be used as fillers in the same site post completion of work or they may be used in stone, sand and gravel mines and road construction. Fancier usage of these materials includes construction of landscaped gardens and structural filling of areas that are low for assisting future development. Recycled concrete blocks: Masonry and concrete make up more than fifty percent of generated wastes. These may be reused in the form of slabs or blocks. A lot of builders make use of the bricks that are unscathed post demolition of a house in the new building as it is cost effective. Reuse and recycling these materials have twin benefits on offer- conservation of landfill space and reduction of natural resource extraction meant for newer construction. These recycled materials may be used in bulk filling, as sub-base materials for road construction and lining of canals, filler materials for drainage projects etc. Metal wastes generated through discarded cables and pipes can always be melted and remoulded into other items. There are waste pickers who deal in metals and they offer good rates for the metal sold to them by the kilo.

Recycle wood products: Solid and intact wood recovered after demolition may be fitted in window frames, beams, partitions and doors. Wood chips are highly valuable in the market for their reuses in flooring, cabinets and furniture. Low quality wood pieces may be incinerated for production of energy. Usually scrap wood pieces have to be sold to a centralised plant, where they are treated with chemicals to get rid of termites and other insects and make the pieces look as good as new. They may be used in animal bedding and for creating different press boards. Coal wastes or Bituminous wastes: Bituminous wastes arise from construction of roads and their digging and breaking for maintenance utilities and services. These materials may be recycled through cold or hot mixing methods at a central or local asphalt mixing plant. It is highly beneficial as it saves energy, asphalt and reduces requirement for further projects. Despite there being so many ways to recycle and reuse construction materials, the path isn't easy. The best way to promote the use of these materials over new ones and marketing them on a mass basis are some of the issues plaguing reuse of C&D waste. Conclusion:

The invented process Concrete is the only material that does not face substantial competition from other recycled materials. Its main competitor is crushed stone, which is plentiful. Many provinces of the Philippines, however, do not produce crushed stone but do have a need for aggregates that could be replaced by recycled concrete. Thus, there is sufficient capacity to recycle all of the concrete generated. Environmentally, recycling concrete is the preferred method of management in most areas of Metro Manila. Due to the proximity of limestone mines and distance of recycling facilities or landfill may be preferable in some areas. Based from the observations on the experiments performed, the researcher concludes the following: (a) The proportions of the crushed concrete debris affects cement and water in a manner that it absorbs most of the water in the mixture. (b) The concrete debris mixture obtained a high slump and low compressive strength at its seventh day of curing. (c) The amount of water in the mixture affects the consistency of the mortar mixture. (d) The concrete debris mix, with 1:3 ratio of cement to crushed concrete debris with considerable e slump and penetration, has an acceptable mobility as the standard mortar mix of the same cement to sand ratio. (e)The concrete debris having 1:2%¾cement to crushed concrete debris ratio of 2-in cubes is as compact as the standard mortar mix of the same cement to sand ratio and (f) Its' mix proportion affects the consistency or workability of a mortar mix having 1:2/ cement to crushed concrete debris ratio.

Claims (7)

WE CLAIM

1) Our invention "APIC- Recycling C&D Waste "is a method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The invented technology also the mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt. The invented technology also the fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 5 to 6 inches in at least one direction. The invented technology also the recycler may incorporate the fines into a concrete mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc. The invented technology also the method of recycling construction and demolition debris produces a product useful in earth engineering applications, including landfills, soil stabilization and roadbeds. The invented technology also the method involves wet shredding construction and demolition debris into a moist shredded product and applying the product as daily cover for a landfill, or in a roadbed, or as a soil stabilizer or nutrient. A landfill design using the recycled product is also disclosed.

2) According to claims# the invention is to a method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete?

3) According to claiml,2# the invention is to the invented technology also the mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt.

4) According to claiml,2,3# the invention is to the invented technology also the fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like and also the fines may range in size from microns up to 5 to 6 inches in at least one direction.

5) According to claim,2,4# the invention is to the invented technology also the recycler may incorporate the fines into a concrete mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc.

6) According to claiml,2,3,4# the invention is to the invented technology also the method of recycling construction and demolition debris produces a product useful in earth engineering applications, including landfills, soil stabilization and roadbeds.

7) According to claim,2,5# the invention is to the invented technology also the method involves wet shredding construction and demolition debris into a moist shredded product and applying the product as daily cover for a landfill, or in a roadbed, or as a soil stabilizer or nutrient and also the landfill design using the recycled product is also disclosed.

FIG.1: CONSTRUCTION WASTE RECYCLING.

FIG.2: DEPOSE OF CONSTRUCTION WASTE RECYCLING.

FIG.3: CONSTRUCTION WASTE IS A MADE FOR RECYCLING.

FIG.4: COMPLETE RECYCLING PROCESS.

FIG.5: DEMOLITION WASTE RECYCLING.

FIG.6: DEMOLITION WASTE RECYCLING ON REAL TIME.

FIG.7: DEMOLITION WASTE RECYCLING STATUS.

FIG.8: RECYCLING C&D WASTE INCLUDING CONCRETE PART AND CONVERT USEFUL MATERIAL.

FIG.9: RECYCLING C&D WASTE INCLUDING CONCRETE PART AND CONVERT USEFUL MATERIAL.