recycled aggregate base course specifications

(PDF) Comparison of Specifications for Recycled Concrete ,

(PDF) Comparison of Specifications for Recycled Concrete ,

PDF | This paper reviews existing specifications, specifically for the application of crushed concrete or recycled concrete aggregate (RCA) as pavement material for unbound subbases and basecours

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Recycled Concrete - Products | Lehigh Hanson, Inc

Recycled Concrete - Products | Lehigh Hanson, Inc

The recycled aggregate is used as soon as it is processed Recycled concrete currently supplies about 5% of aggregate use The bulk of recycled aggregates – about 68 % – is used as road base The remainder is used for new concrete mixes (6%), asphalt (9 %) and fill Recycling concrete features both cost savings and environmental benefits:

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The Use of Recycled Concrete Aggregate in a Dense Graded ,

The Use of Recycled Concrete Aggregate in a Dense Graded ,

The Use of Recycled Concrete Aggregate in a Dense Graded Aggregate Base Course FINAL REPORT Submitted by Piscatawa NJDOT Research Project Manager Dr Nazhat Aboobaker FHWA-NJ-2008-002 Mr Thomas Bennert* Research Engineer In cooperation with New Jersey Department of Transportation Bureau of Research and Technology and

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3138 AGGREGATE FOR SURFACE AND BASE COURSES ,

3138 AGGREGATE FOR SURFACE AND BASE COURSES ,

3138 AGGREGATE FOR SURFACE AND BASE COURSES 31381 SCOPE This specification lists the quality requirements for aggregates used for 2118, 2211, and 2221 31382 REQUIREMENTS A General Use aggregate sources meeting the requirements of 1601, “Source of Supply and Quality” Provide certified aggregate materials that have uniform: appearance .

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F A A Central Region Modifications to AC 150/5370-10

F A A Central Region Modifications to AC 150/5370-10

This item consists of a base course composed of [fly ash, recycled bituminous pavement, existing aggregate base, and aggregate] constructed on an existing subgrade in accordance with these specifications and in conformity to the dimensions and typical cross sections shown on the plans

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Use of Crushed/Recycled Concrete as Drainable ,

Use of Crushed/Recycled Concrete as Drainable ,

Surface Course Permeable base Subbase layer Shoulder Outline , • Many state DOTs have their own specifications for the use of recycled unbound pavement materials 21 RCA Material Specifications Arizona May be used for aggregate subbase and base Requirements not same as standard specs If specs not incl in Spec Prov, contr May request .

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Item P-219 Recycled Concrete Aggregate Base Course

Item P-219 Recycled Concrete Aggregate Base Course

Item P-219 Recycled Concrete Aggregate Base Course DESCRIPTION 219-11 This item consists of a base course composed of recycled concrete aggregate, crushed , initial aggregate submittals necessary to determine compliance with the specification requirements will be made by the Contractor and reviewed and approved by the Engineer

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Recycled Materials Specifications

Recycled Materials Specifications

Specification 334: Crushed Glass (not in surface course) Specification 901: Coarse Aggregate - Reclaimed Portland Cement Concrete Specification 911: Base - Reclaimed Portland Cement Concrete, reclaimed general crushed concrete Recycled Plastic Note: All recycled plastic products are governed by Specification 972

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Recycled Aggregate - calrecyclecagov

Recycled Aggregate - calrecyclecagov

Specifications Many local jurisdictions use Caltrans specificationsIn Southern California, the Greenbook is commonly used (See Greenbook discussion below) Where recycled aggregate is allowed, it must also, of course, meet the same grading and quality specifications as aggregate

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Evaluation of Crushed Concrete Base Strength - mdotmsgov

Evaluation of Crushed Concrete Base Strength - mdotmsgov

Evaluation of Crushed Concrete Base Strength Prepared for Mississippi Department of Transportation , (MDOT) requirements for recycled concrete aggregates (RCA) provide adequate materials for a roadway granular pavement layer and 2) determine whether RCA materials provide the , the base course must be able to resist deformation due to .

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Construction Rock - Oxford Recycling

Construction Rock - Oxford Recycling

Construction Rock Class 6 Aggregate Base Course (3/4” Roadbase) Class 6 Aggregate Base Course is post consumer concrete and meets or exceeds the Colorado Department of Transportation (CDOT) specifications This product has reinforcing steel removed and pieces no larger than ¾” down to dust The most common usage is as a foundation for .

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ftpdotstatetxus

ftpdotstatetxus

Specifications Draft Special Specification: Cold Processed-Recycled Paving Material (RPM) for Use as Aggregate Base Course If you have questions or comments regarding this packet, contact: Rebecca Davio, TxDOT’s recycling coordinator (512) 416-2086 or [email protected] According to the National Asphalt Pavement

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SPECIFICATIONS - dotstatepaus

SPECIFICATIONS - dotstatepaus

specifications commonwealth of pennsylvania department of transportation preface 408/2003 i , 320 aggregate-bituminous base course 320 - 1 320 - 3 321 aggregate-cement base course 321 - 1 321 - 3 341 cold recycled bituminous base course, cold-in-place 341 - 1 341 - 3 342 cold recycled bituminous base course, central plant mix .

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CW 3110 SUB-GRADE, SUB-BASE AND BASE COURSE ,

CW 3110 SUB-GRADE, SUB-BASE AND BASE COURSE ,

CW 3110 – SUB-GRADE, SUB-BASE AND BASE COURSE CONSTRUCTION , 8 Crushed Recycled Concrete – Crushed Portland Cement Concrete that has been crushed into , 3 Crushed sub-base material will be crushed aggregate, crushed granite, crushed limestone

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Aggregate - Illinois Department of Transportation

Aggregate - Illinois Department of Transportation

Aggregate Various tests, including quality, freeze-thaw, and alkali-silica reactivity (ASR) are performed on aggregates used for road and bridge construction in Illinois These tests quantify the physical characteristics of each aggregate product from each source

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Use of Crushed/Recycled Concrete as Drainable Base/Subbase ,

Use of Crushed/Recycled Concrete as Drainable Base/Subbase ,

Surface Course Permeable base Subbase layer Shoulder Outline , • Many state DOTs have their own specifications for the use of recycled unbound pavement materials 21 RCA Material Specifications Arizona May be used for aggregate subbase and base Requirements not same as standard specs If specs not incl in Spec Prov, contr May request .

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PART III -- BASE COURSES - LaDOTD

PART III -- BASE COURSES - LaDOTD

Specifications for Embankments and Base Course" When not specified, any of the following types may be used (1) Soil Cement (2) Stone or Crushed Slag (3) Cement Stabilized Sand-Clay-Gravel (4) Asphaltic Concrete Base Course on Treated Layer (5) Recycled Portland Cement Concrete

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RECYCLED CRUSHED CONCRETE BASE COURSE PART 1 G E ,

RECYCLED CRUSHED CONCRETE BASE COURSE PART 1 G E ,

CITY OF HOUSTON RECYCLED CRUSHED STANDARD SPECIFICATION CONCRETE BASE COURSE 02713-1 07/01/2009 Section 02713 RECYCLED CRUSHED CONCRETE BASE COURSE PART 1 G E N E R A L 101 SECTION INCLUDES A Recycled crushed concrete base (RCCB) course 102 MEASUREMENT AND PAYMENT A Unit Pric 1

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Recycled Aggregates - cementorg

Recycled Aggregates - cementorg

Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete .

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Recycled Concrete Aggregate(RCA) used in subbase

Recycled Concrete Aggregate(RCA) used in subbase

Mar 06, 2017· Objectives of Study • To design Recycled Concrete Aggregate (RCA) mix for sub- base course • To determine the basic property of sub-base material as per MORT&H (V revision) • To study the Compaction characteristics of RCA material stabilized by varying dosages of 0%, 1%, 3%, 4% and 5% of Portland cement by weight of RCA mix

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Chapter Six - The National Academies Press

Chapter Six - The National Academies Press

122 â ¢ Forty-eight percent of the agencies have not incorpo- rated the use of recycled aggregates from existing base and subbase courses into their specifications â ¢ Eighty-three percent of the responding agencies indicated that contractors are not allowed to use locally available â marginalâ or â out-of-specificationâ aggregates for .

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Section 815 Graded Aggregate

Section 815 Graded Aggregate

Section 815—Graded Aggregate 8151 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 815101 Related References A Standard Specifications Section 800—Coarse Aggregate

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Standard Specifications for Road and Bridge Construction

Standard Specifications for Road and Bridge Construction

10505 coordination of plans, standard specifications, sup­ plemental specifications, and special provisions 10506 character of workers, methods, and equipment 10507 conformity with plans and specifications 10508 plans and working drawings 10509 authority of the engineer 10510 construction staking 10511 duties of the inspector

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5 Aggregate Specifications and Requirements - ingov

5 Aggregate Specifications and Requirements - ingov

Aggregate Base Subbase Aggregate Pavement or Shoulders Summary of Gradation Requirements 5-1 5 CHAPTER FIVE: AGGREGATES SPECIFICATIONS and REQUIREMENTS Specifications are generally clear, concise, quantitative descriptions of the , cours ITM 205 is used to ensure that the aggregate proposed is

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02204 - Base Course - Juneau

02204 - Base Course - Juneau

A Aggregate base course shall consist of crushed gravel or crushed stone, conforming to the quality requirements of AASHTO M 147 The aggregate shall be free from lumps, balls of clay, or other objectionable matter, and shall be durable and sound B Base course material shall conform to one of the following gradations as specified:

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Construction & Demolition Recycling Association: End Markets

Construction & Demolition Recycling Association: End Markets

Markets for Recycled Concrete Aggregate This is only what has been done to date Use your engineering imagination! Aggregate base course (road base), or the untreated aggregates used as foundation for roadway pavement, is the underlying layer (under pavement surfacing) which forms a structural foundation for paving

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SECTION 2022 LEVELING COURSE Article 221 General

SECTION 2022 LEVELING COURSE Article 221 General

o in any soil-aggregate base or subbase courses that are not covered by surfacing material Article 224 Measurement The leveling course shall be measured in tons of materials delivered and placed in accordance with these Specifications and adjusted for excess moisture as provided The

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Construction aggregate - Wikipedia

Construction aggregate - Wikipedia

Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregatAggregates are the most mined materials in the world Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as .

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Standard Specifications for Road and Bridge Construction

Standard Specifications for Road and Bridge Construction

STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTION 1 POLICY Road and bridge construction shall be performed according to the standards set forth in this policy 2 PURPOSE , AGGREGATE BASE COURSE , 168 SECTION 352 SOIL-CEMENT BASE COURSE , 172 SECTION 353 .

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Reclaimed Asphalt Concrete - User Guideline - Granular ,

Reclaimed Asphalt Concrete - User Guideline - Granular ,

American Association of State Highway and Transportation Officials "Standard Specification for Aggregate and Soil-Aggregate Subbase, Base and Surface Courses," AASHTO Designation M147-70, Part I Specifications, 16th Edition, 1993 Hanks, A J and E R Magni

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