recycled concrete aggregate specifications

Using Recycled Concrete in MDOT's State of Michigan

asphalt paving layers, and concrete paving layers these are presented in conjunction with MDOT's standard specifiions for construction and and special provisions to indie the Department's current usage policies policies and recommendations regarding CCA. crushed concrete aggregate (CCA), recycled concrete 

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Guidance for Specifiion: Recycled and secondary aggregates

Recommendation: Permit the use of recycled or secondary aggregates but do not overspecify. When specifying recycled and secondary aggregates, the factors to balance are resource depletion, transportation CO2 impacts and impliions on mix design. These are all affected by availability, and concrete producers are 

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Reclaimed Concrete Material User Guideline Portland Cement

Reclaimed concrete material (RCM) can be used as coarse and/or fine aggregate in Portland cement concrete (PCC) pavements. However RCM has been accepted by many jurisdictions and is covered by conventional aggregate specifiions and by several highway agency specifiions, including those in Colorado, 

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Performance of concrete with recycled aggregates

recycled aggregates in concrete. This Rilem specifiion was based on experience obtained since the early eighties in The Netherlands, Denmark and Belgium. Since only few countries have substantial practical experience with the use of recycled aggregates in concrete, only few EC countries developed standards and 

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Edil No. 68 Specifiions for Recycled Materials Used as Unbound

2. This report provides recommendations and specifiions for recycled asphalt pavement and recycled concrete aggregate that can be used as unbound base course. It is based on research conducted at the University of WisconsinMadison and elsewhere and the discussions with the industry representatives and other 

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Reclaimed Concrete Material User Guideline Granular Base

Reclaimed concrete material (RCM) can be used as coarse and/or fine aggregate in granular base. The properties of processed RCM generally exceed the Two highway agencies (Illinois and Pennsylvania) have specifiions that directly address RCM use in granular base.(1) A number of states are conducting or have 

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Recycled Aggregate CalRecycle

Nov 20, 2014 An overview of recycled aggregate base and subbase, made from crushing concrete and asphalt California specifiions: Greenbook and Caltrans (California DOT) organizations, and siting considerations in California, developed by the California Integrated Waste Management Board, now known as 

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ipwea/walga specifiion

Users of this specifiion are advised to consider the Guidance Note at the end of the specifiion. 2 General. The material shall consist of a uniformly blended mixture of coarse and fine aggregate resulting from the crushing of recycled concrete and other hard materials from construction and demolition material.

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Comparison of Specifiions for Recycled Concrete Aggregate for

Dec 19, 2017 Fulltext (PDF) This paper reviews existing specifiions, specifically for the appliion of crushed concrete or recycled concrete aggregate (RCA) as pavement material for unbound subbases and basecourses. While the use of recycled crushed concrete is not new internationally, its appliion

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Specifiions Facilitating the Use of Recycled Aggregates

Mar 27, 2002 the reusable portion of C&D materials be recycled and put into good use. This Circular promulgates the particular specifiions to facilitate the use of recycled aggregates in Grade. 20 prescribed mix and Grade 2535 designed mix concrete, and in road subbase construction. The relevant particular 

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Recycled Concrete Aggregate TxDOT

TxDOT reclaims and reuses about one million tons of recycled concrete pavement (RCA) annually. Our suppliers crush and separate the material into several grades of hard, granular mineral aggregates suitable for various appliions. On some projects, contractors crush, or rubblize, pavement in place to save the cost of 

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Aggregates

o Backfill, Recycling and Waste Management: Regional Justice Center Project o Fill, Vashon Transfer/Recycling Station o Rubblizing Road Project. • WSDOT 2002 Standard Specifiions Recycled Concrete Aggregate. • Product Experience o Recycled Concrete Aggregate as Crushed Stone Surfacing at the Puyallup/Kit.

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2016 Crushed Concrete Specifiions Manatee County

Crushed Concrete Base shall follow FDOT Standard Specifiions 2015. C) Deleterious materials conform to FDOT Specifiions 2015. materials to be used in the construction of base and subgrade stabilization including limerock, shell, shellrock, cemented coquina shell, and recycled concrete aggregate (RCA).

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Reclaimed Concrete Material User Guideline Granular Base

Reclaimed concrete material (RCM) can be used as coarse and/or fine aggregate in granular base. The properties of processed RCM generally exceed the Two highway agencies (Illinois and Pennsylvania) have specifiions that directly address RCM use in granular base.(1) A number of states are conducting or have 

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Edil No. 68 Specifiions for Recycled Materials Used as Unbound

2. This report provides recommendations and specifiions for recycled asphalt pavement and recycled concrete aggregate that can be used as unbound base course. It is based on research conducted at the University of WisconsinMadison and elsewhere and the discussions with the industry representatives and other 

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Evaluation of unbound crushed concrete as road building material

Recycled concrete aggregate has recently been introduced in design codes for road construction in. Norway, including material specifiions. A number of field projects have proven good functional properties and suitability as road construction materials. However, the mechanical properties of the materials are often not in 

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Using Recycled Concrete Aggregate in New Concrete MnDOT

Using recycled concrete as aggregate fulfills the three basic principles of sustainability: performance, environmental mixes and develop guidelines for successful use of recycled aggregate in new concrete pavements. gradation specifiions for concrete aggregate can achieve workable and durable mixes that are less 

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Recycling Portland Cement Concrete Into Aggregate

Mar 1, 2014 Section 1003 and 1004 of the Standard Specifiions for Road and Bridge Construction includes "crushed concrete" as an acceptable source of aggregate material. Care must be taken, however, to assure that quality and gradation requirements are not compromised when recycled concrete is used in lieu 

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Minnesota Recycled Aggregate Spec

(1) Recycled aggregates contain only recycled asphalt pavement (RAP), recycled concrete materials, recycled aggregate materials, or certified recycled glass, and. (2) Must meet the requirements of Table 31382. Table 31382. Quality Requirements for Recycled Materials. Requirement. Classes 1, 3, 4, 5, 5Q and 6.

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FDOT: State Materials Office Recycled Materials Specifiions

Specifiion 902: Fine Aggregate Local materials Any materials meeting requirements for size, hardness and durability. Screenings from reclaimed Portland Cement Concrete pavement. Specifiion 334: Crushed Glass (not in surface course) Specifiion 901: Coarse Aggregate Reclaimed Portland Cement 

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Section 815 Graded Aggregate

815.1 General Description. This section includes the requirements for material to be used for base, subbase, or shoulder course material, and includes graded aggregate, unconsolidated limerock base, and crushed concrete base. 815.1.01 Related References. A. Standard Specifiions. Section 800—Coarse Aggregate.

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2016 Crushed Concrete Specifiions Manatee County

Crushed Concrete Base shall follow FDOT Standard Specifiions 2015. C) Deleterious materials conform to FDOT Specifiions 2015. materials to be used in the construction of base and subgrade stabilization including limerock, shell, shellrock, cemented coquina shell, and recycled concrete aggregate (RCA).

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Using Recycled Concrete in MDOT's State of Michigan

asphalt paving layers, and concrete paving layers these are presented in conjunction with MDOT's standard specifiions for construction and and special provisions to indie the Department's current usage policies policies and recommendations regarding CCA. crushed concrete aggregate (CCA), recycled concrete 

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Construction aggregate Wikipedia

Steel furnace slag sales in 2006 were for use in road bases and surfaces (51%), asphaltic concrete (12%), for fill (18%), and the balance for other uses. Glass aggregate, a mix of colors crushed to a small size, is substituted for many construction and utility projects 

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Using Recycled Concrete Aggregate in New Concrete MnDOT

Using recycled concrete as aggregate fulfills the three basic principles of sustainability: performance, environmental mixes and develop guidelines for successful use of recycled aggregate in new concrete pavements. gradation specifiions for concrete aggregate can achieve workable and durable mixes that are less 

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Specifiions for concrete with recycled aggregates Springer Link

Specifiions for concrete with recycled aggregates. These specifiions were prepared by Task Force I of RILEM TC 121DRG in a draft version which was presented for comments at the 3rd International RILEM. Symposium on Demolition and Reuse of Concrete and Masonry, Odense, 2427. October 1993. Taking due 

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Recycled Concrete Aggregate Rock Products

Mar 7, 2013 (FHWA, 2004) The AASHTO Standard Specifiion for Reclaimed Concrete Aggregate for Unbound SoilAggregate Base Course designated as M 319 also addresses this in Note 2 and states that appropriate limits should be set for the use of RCA in proximity to groundwater and surface water.

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Recycled Concrete Aggregate Usage in the US Institute for

However, many states still have specifiion or policy restrictions that do not allow recycled pavements to be utilized to the extent that is possible. In addition, the contracting industry may overlook opportunities to use recycled concrete aggregates (RCAs) on projects due to a lack of familiarity with the technical requirements 

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