2014 Specifications Using Recycled Materials by Application


TxDOT’s construction and maintenance approved specifications specifically call for or allow for the use of recycled materials, in addition to virgin materials. Some specifications require their use, while others allow their use if noted in the plans. This information is for information only and is not to be used for bidding or contract purposes.

All specifications use 2014 Standard Specifications unless noted. For more information, contact us.

Acronyms

  • RAP - Reclaimed Asphalt Pavement
  • SCM - Supplementary Cementing Material

Earthwork

Specifications Recycled Materials Applications PDF
Embankment Granular materials (such as crushed concrete, glass cullet and RAP) Form a stable embankment
Compost Leaves, yard trimmings, biosolids, food scraps, food-processing residuals, manure or other agricultural residuals, forest residues, bark and paper Establish vegetation, control erosion (See compost producer list)
Seeding for Erosion Control Cellulose Mulch
Landscape Establishment Loose organic materials such as wood chips or shredded bark Mulch

Sub-base and Base Courses

Specifications Recycled Materials Applications PDF
Flexible Base Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Lime Treatment (Road-Mixed) Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Lime Treatment (Plant-Mixed) Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Fly Ash or Lime-Fly Ash Treatment (Road-Mixed) Fly ash Subgrade or base stabilizer
Cement Treatment (Road-Mixed) Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Cement Treatment (Plant-Mixed) Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Asphalt Treatment (Plant-Mixed) Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Reinforcement for Concrete Steel Reinforcement

Surface Courses or Pavement

Specifications Recycled Materials Applications PDF
Asphalts, Oils and Emulsions Tire rubber Asphalt modifier for pavements

Asphalt modifier for crack sealer (see Material Producer List)

Aggregates for Surface Treatments Crushed slag and glass cullet Coarse aggregate
Hot-Mix Cold-Laid Asphalt Concrete Pavement Fly ash Mineral filler
Dense-Graded Hot-Mix Asphalt (Small Quantity) Fly ash

RAP

Mineral filler

Coarse aggregate

Dense-Graded Hot-Mix Asphalt Fly ash

RAP

Mineral filler

Coarse aggregate

Permeable Friction Course (PFC) Cellulose or mineral fiber

Tire rubber

Fiber additive

Asphalt modifier

Stone-Matrix Asphalt Cellulose or mineral fiber

Fly ash

Manufactured sand

RAP

Tire rubber

Fiber additive

Mineral filler

Fine aggregate

Coarse aggregate

Asphalt modifier

Concrete Pavement Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Hot In-Place Recycling of Asphalt-Concrete Surfaces Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Repair of Concrete Pavement Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs

Structures

Specifications Recycled Materials Applications PDF
Excavation and Backfill for Structures Same as Hydraulic Cement Concrete for nonstructural concrete, glass cullet and foundry sand Aggregates and SCMs
Flowable Backfill Fly ash

Foundry sand

Mineral fiber

Fine aggregate

Hydraulic Cement Concrete Crushed blast furnace slag, crushed concrete (in nonstructural concrete only)

Fly ash, ground granulated blast-furnace slag and silica fume

Manufactured sands

Coarse aggregate

 

SCMs

 

Fine aggregate

Retaining Walls Aggregates and SCMs  
Riprap Crushed concrete, RAP or other (such as glass cullet) Coarse aggregate
Reinforcing Steel Steel Reinforcement
Steel Structures Steel Structures
Metal for Structures Steel, iron and aluminum Structural members, castings, extrusions and forgings
Junction Boxes,

Manholes and Inlets

Aggregates and SCMs

Steel, iron and aluminum

Structural members and castings

Incidental Construction

Specifications Recycled Materials Applications PDF
Colored Textured Concrete and Landscape Pavers Nonstructural concrete Aggregates and SCMs
Concrete Curb, Gutter, and Combined Curb and Gutter Aggregates and SCMs  
Intersections, Driveways and Turnouts Same as Flexible Base

Same as Hydraulic Cement Concrete for nonstructural concrete

Aggregates and SCMs

Sidewalks Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Concrete Medians and Directional Islands Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Right of Way Markers Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Metal Beam Guard Fence Plastic and tire rubber

Same as Hydraulic Cement Concrete for nonstructural concrete

Blocks

Aggregates and SCMs

Chain Link Fence Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs

Light and Sign

Specifications Recycled Materials Applications PDF
Small Roadside Sign Assemblies Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Large Roadside Sign Supports and Assemblies Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Signs Aluminum Sign blanks
Foundations for Traffic Control Devices Same as Hydraulic Cement Concrete for nonstructural concrete Aggregates and SCMs
Maintenance of Traffic Signals Aluminum Sign blanks
Roadway Illumination Assemblies Aluminum  
High Mast Illumination Poles Aluminum  

Maintenance

Specifications Recycled Materials Applications PDF
Landscape Maintenance Loose organic materials such as wood chips or shredded bark Mulch
Guard Fence Repair Plastic, tire rubber Blocks

Departmental Material Specifications

Specifications Recycled Materials Applications PDF
Jiggle Bar Tile Tire rubber Filler for jiggle bar tile (see material producer list)
Delineator and Object Marker Assemblies
   
Fiberglass Reinforced Plastic Sign Supports Plastic

Sign supports

Fly Ash for Soil Treatment Fly ash Soil treatment
Ground Granulated Blast-Furnace Slag Ground granulated blast-furnace slag Supplementary cementing material (see material producer list)
Composite Material Posts and Blocks for Metal Beam Guard Fence Plastic and tire rubber See also Metal Beam Guard Fence in Specifications Manual
Joint Sealants and Fillers Tire rubber Joint sealants
Hot Applied Thermoplastic Glass Reflectivity
Glass Traffic Beads Glass Reflectivity
Fly Ash Fly ash Pozzolan, soil treatment or stabilizer and SCM
Guidelines for Evaluating and Using Nonhazardous Recyclable Materials (NRMs) in TxDOT Projects All non-hazardous recyclable materials Environmental standards for NRMs used for any application

1993 and 1995 Standard Specifications

Specifications Recycled Materials Applications PDF
1993 Special Specification 3157. Cold Processed - Recycled Paving Material for Use as Aggregate Base Course - Statewide Use Crushed concrete or other non-hazardous recycled materials, processed recycled asphalt pavements, bottom ash, foundry slag, glass and recycled crumb rubber
Fly ash and bottom ash
Coarse aggregate

 

 

 

Pozzolans to improve mixing and workability

1995 Special Specification 3028. Hot Mix Asphaltic Concrete Pavement Containing Reclaimed Roofing Shingles - For project 0162-04-039 in Navarro County. One-Time Use Roofing shingles Aggregate
1995 Special Specification 5160. Tire for Use in Embankment - For project 2552-01-025 in El Paso County. One-Time Use Tire chips or shreds Fill material

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