SPECIAL SPECIFICATION 3267 Dense-Graded Hot-Mix …
Dense-Graded Hot-Mix Asphalt (Small Quantity) 1. Description. Construct a hot-mix asphalt (HMA) pavement layer composed of a compacted, dense-graded mixture of aggregate and asphalt binder mixed hot in a mixing plant. This specification is intended for small quantity (SQ) HMA projects, typically under 5,000 tons total production. 2. Materials.
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Item 8011 Dense-Graded Hot-Mix Asphalt (Small Quantity) …
RAP is salvaged, milled, pulverized, broken, or crushed asphalt pavement. Fractionated RAP is defined as a RAP stockpile that contains RAP material with a minimum of 95.0% passing the 3/8-in. or ½-in. sieve, before burning in the ignition oven, unless otherwise approved. The Engineer may allow the . 1. 8011. OTU . 8011. 1. Contractor .
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Recycled Concrete Aggregate
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 …
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Material Selection Guide
Hot-Mix Asphalt Mixture Selection Guide. The first section is a surface aggregate selection guide for flexible pavements. It provides guidance on how to properly select aggregate for surface …
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Roadway Recycled Materials Summaries
As part of our Road to Recycling initiative, a road construction industry panel identified 12 materials with great potential in road construction that are readily available in Texas in …
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Item 292 Asphalt Treatment (Plant-Mixed)
the plans. Asphalt binder from RAP and RAS is designated as recycled asphalt binder. Calculate and ensure that the ratio of the recycled asphalt binder to total binder does not exceed the percentages shown in Table 2 during mixture design and production. Use a separate cold feed bin for each stockpile of RAP and RAS during production.
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Demystifying RAM (Recycled Asphalt Materials)
(Recycled Asphalt Materials) Amy Epps Martin Texas A&M University. Disclaimers for Ongoing Work NCHRP. ... TxDOT BMD. 9-68. Sustainable Asphalt Technologies. TxDOT Mixture Types/Specs/Max RAM & RBR @ Surface. 8. Mixture Type. Description. TxDOT Spec. Max RAM. Max RBR. Dense ; Traditional Dense-Graded. SS 3076
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SPECIAL SPECIFICATION 3236 Cold Central Plant …
plant to ensure that larger clumps of crushed RAP material are sufficiently broken apart prior to mixing with other materials. 2. Process the crushed material through a mixing unit capable of thoroughly mixing the processed bituminous material, asphalt emulsion, sand, and other additives to a homogenous mixture at a minimum rate of 100 tons per ...
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Special Provision Template
Los Angeles abrasion Tex-410-A TxDOT Magnesium sulfate soundness Tex-411-A TxDOT Micro-Deval abrasion Tex-461-A AGG101 Crushed face count Tex-460-A AGG101 ... Recycled Asphalt Shingles (RAS)3 Tex-217-F, Part III N/A Thermal profile2 Tex-244-F 1 per sublot Asphalt binder sampling and testing Tex-500-C, Part II 1 per lot
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Item 8004 Dense-Graded Hot-Mix Asphalt (Small …
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location.
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FDR Asphalt Construction Guidelines
Full-depth reclamation (FDR) has been used by TxDOT on numerous projects to strengthen the load carrying capability of an existing pavement, to rework the roadway to remove a variety of …
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SPECIAL SPECIFICATION 3268 Dense-Graded Hot-Mix …
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location. Samples
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Aggregate Product
Also known as flex base, made from concrete rubble crushed by an impact crusher for optimum shape and consistency, screened through a 1 3/4" screen. Tested to meet or exceed TXDOT …
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Special Specification 8006 Superpave Mixtures(Materials Only)
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location.
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SPECIAL SPECIFICATION 3288 Thin Overlay Mixtures (TOM)
Section for coarse, intermediate, or fine aggregate. Do not use reclaimed asphalt pavement (RAP) or recycled asphalt shingles (RAS). Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location. Samples must be from
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Special Specification 8017 Superpave Mixtures (Materials Only)
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location.
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Item 300 Asphalts, Oils, and Emulsions
Use asphalt containing recycled materials only if the recycled components meet the requirements of Article 6.9, "Recycled Materials." Provide asphalt materials that have been preapproved for use by the Construction Division in accordance with Tex-545-C. Acronyms used in this Item are defined in Table 1.
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Seal Coat and Surface Treatment Manual: Selection …
Asphalt binders for precoating aggregates can be emulsions or asphalt cements. The target value of precoating material typically varies from 0.5 to 1.5 percent (0.5 to 3.0 percent for lightweight aggregate), by weight, of residual binder on the …
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SPECIAL SPECIFICATION 3271 Stone-Matrix Asphalt
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location. Samples
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RAPjune
This packet provides information about how and why to use reclaimed asphalt pavement (RAP) in roadway construction and maintenance projects. Research Summary RAP Variability in Hot-Mix Asphalt Case Study #1 Use of Cold Recycle RAP Base, Limestone County Case Study #2 RAP Use in Superpave TxDOT Experience Summary of TxDOT experience using reclaimed asphalt …
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STONE-MATRIX ASPHALT 346.1. 346.2. A.
RAP is salvaged, milled, pulverized, broken, or crushed asphalt pavement. Crush or break RAP so that of the particles pass the 2-in. sieve. RAP from either Contractor- or Department-owned sources, including RAP generated during the project, is permitted only when shown on the plans. Department-owned RAP, if allowed for use,
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HOT MIX ASPHALTIC CONCRETE PAVEMENT
asphalt in the RAP shall be restored to the properties indicated below. Restoration will be made by adding asphalt recycling agent and/or asphalt cement meeting the requirements of Item 300, "Asphalts, Oils and Emulsions." The mixture design will include recovery of asphalt from the RAP in accordance with Test Method Tex-211-F.
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Material producer list
Files for TxDOT-approved products and materials from various manufacturers and producers.
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Item 341 Dense-Graded Hot-Mix Asphalt
intermediate, or fine aggregate. Aggregate from reclaimed asphalt pavement (RAP) is not required to meet Table 1 requirements unless otherwise shown on the plans. Supply aggregates that meet the definitions in Tex-100-E for crushed gravel or crushed stone. The Engineer will designate the plant or the quarry as the sampling location.
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Item 334 Hot-Mix Cold-Laid Asphalt Concrete Pavement
Furnish asphalt binder, primer, additives, and water, unless otherwise shown on the plans. 2.4.1. Asphalt Binder. Provide the asphalt shown on the plans, meeting the requirements of Item 300, "Asphalts, Oils, and Emulsions." 2.4.2. Primer. Provide an approved asphalt primer consisting of a blend of asphalt cement and hydrocarbon volatiles ...
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Flexible Base Selection and Information Guide
A Crushed stone produced and graded from oversize quarried aggregate that originates from a single, naturally occurring source. This does not include gravel or multiple sources . B Crushed or uncrushed gravel. Blending of two or more sources is allowed. C Crushed gravel with a minimum of 60% of the particles retained on a No. 4 sieve with
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2024 Specifications
Provide asphalt materials that meet the stated requirements when tested in conformance with the referenced Department, AASHTO, and ASTM test methods. Use asphalt containing recycled …
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Item 344 Superpave Mixtures
2. For base mixtures defined in Section 344.2.7., "Recycled Materials," the Los Angeles abrasion may be increased to a Max of 40%. 3. For base mixtures defined in Section 344.2.7., "Recycled Materials," the magnesium sulfate soundness, 5 cycles, may be increased to a Max of 30%. 4. Only applies to crushed gravel. 5.
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Item 8021 Asphalt Stabilized Base (Materials Only)
Determine asphalt content and gradation of the RAP and RAS stockpiles for mixture design purposes in accordance with Tex-236-F. Asphalt binder from RAP and RAS is designated as recycled asphalt binder. When RAP or RAS is used, calculate and ensure that the ratio of the recycled asphalt binder to total binder does not exceed the
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