NCHRP Report 673:

A Manual for Design of Hot-Mix Asphalt with Commentary

Status: Not for Sale

Size: 285 pages, 8.5 x 11

Publication Year:2011

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Transportation Research Board
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TRB's National Cooperative Highway Research Program (NCHRP) Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary incorporates the many advances in materials characterization and hot-mix asphalt (HMA) mix design technology developed since the conclusion of the Strategic Highway ...
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Table of Contents
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Front Matter	i-xi
Chapter 1 - Introduction	1-3	(skim)
Materials Used in Making Asphalt Concrete	4-4	(skim)
Asphalt Concrete Pavements	5-6	(skim)
How Asphalt Concrete Pavements Fail	7-9	(skim)
Asphalt Concrete Mixtures	10-11	(skim)
HMA Mix Design Methods	12-14	(skim)
Chapter 3 - Asphalt Binders	15-16	(skim)
Performance Grading - Test Methods	17-21	(skim)
Performance Grading - Specification	22-23	(skim)
Critical Temperatures, Specification Values, and Reliability	24-25	(skim)
Practical Selection of PG Binder Grades for HMA Mix Design	26-27	(skim)
Aggregate Particle Size Distribution	28-32	(skim)
Aggregate Specific Gravity and Absorption	33-37	(skim)
Aggregate Specification Properties	38-42	(skim)
Source Aggregate Properties	43-45	(skim)
Composition Factors	46-52	(skim)
Mixture-Specific Gravity	53-55	(skim)
Volumetric Analysis	56-64	(skim)
Chapter 6 - Evaluating the Performance of Asphalt Concrete Mixtures	65-65	(skim)
Mixture Composition and Performance	66-70	(skim)
Laboratory Testing	71-81	(skim)
Performance Predictions Using the AASHTO Mechanistic-Empirical Pavement Design Guide (MEPDG)	82-90	(skim)
Pavement Structure and Construction	91-94	(skim)
Important Factors in Mix Selection	95-97	(skim)
Recommended Mix Types	98-100	(skim)
Other Mix Design Methods	101-105	(skim)
Overview of Design Method	106-106	(skim)
Step 1. Gather Information	107-107	(skim)
Step 2. Select Asphalt Binder	108-110	(skim)
Step 4. Select Nominal Maximum Aggregate Size	111-111	(skim)
Step 5. Determine Target VMA and Design Air Void Content	112-113	(skim)
Step 8. Proportion Aggregates for Trial Mixtures	114-123	(skim)
Step 9. Calculate Trial Mix Proportions by Weight and Check Dust/Binder Ratio	124-127	(skim)
Step 10. Evaluate and Refine Trial Mixtures	128-144	(skim)
Step 11. Compile Mix Design Report	145-147	(skim)
General Mixture Design Considerations for RAP	148-149	(skim)
Overview of the Mixture Design Process with RAP	150-150	(skim)
Using HMA Tools to Design HMA Mixes with RAP	151-151	(skim)
RAP Sampling	152-152	(skim)
Blending and Variability	153-160	(skim)
RAP Aggregate Properties	161-163	(skim)
RAP Binder Properties	164-169	(skim)
Handling RAP Materials in the Laboratory	170-173	(skim)
Overview of GGHMA Mix Design Procedure	174-175	(skim)
Step 1 - Materials Selection	176-178	(skim)
Step 2 - Trial Gradations	179-187	(skim)
Step 3 - Selection of Optimum Gradation	188-188	(skim)
Step 5 - Conduct Performance Testing	189-190	(skim)
Trouble Shooting GGHMA Mix Designs	191-193	(skim)
Chapter 11 - Design of Open-Graded Mixtures	194-194	(skim)
Step 1 - OGFC Materials Selection	195-197	(skim)
Step 2 - Trial Gradations	198-202	(skim)
Step 4 - Selection of Optimum Asphalt Binder Content	203-204	(skim)
Trouble Shooting PFC Mix Designs	205-206	(skim)
Adjusting Laboratory HMA Mix Designs for Plant Production	207-210	(skim)
Quality Control of HMA	211-224	(skim)
Commentary to the Mix Design Manual for Hot Mix Asphalt	225-225	(skim)
Chapter 1 - Introduction	226-226	(skim)
Chapter 2 - Background	227-227	(skim)
Chapter 3 - Asphalt Binders	228-228	(skim)
Chapter 4 - Aggregates	229-230	(skim)
Chapter 5 - Mixture Volumetric Composition	231-231	(skim)
Chapter 6 - Evaluating the Performance of Asphalt Concrete Mixtures	232-239	(skim)
Chapter 7 - Selection of Asphalt Concrete Mix Type	240-240	(skim)
Chapter 8 - Design of Dense-Graded HMA Mixtures	241-252	(skim)
Chapter 9 - Reclaimed Asphalt Pavement	253-264	(skim)
Chapter 10 - Design of Gap-Graded HMA Mixtures	265-265	(skim)
Chapter 11 - Design of Open-Graded Mixtures	266-266	(skim)
Chapter 12 - Field Adjustments and Quality Assurance of HMA Mixtures	267-270	(skim)
References	271-273	(skim)
Abbreviations used without definitions in TRB publications	274-274	(skim)

Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary incorporates the many advances in materials characterization and hot-mix asphalt (HMA) mix design technology developed since the conclusion of the Strategic Highway Research Program (SHRP).

The final report on the project that developed NCHRP Report 673 and Appendixes C through F to NCHRP Report 673 were published as NCHRP Web-Only Document 159. The titles of the appendixes are as follows:

• Appendix C: Course Manual
• Appendix D: Draft Specification for Volumetric Mix Design of Dense-Graded HMA
• Appendix E: Draft Practice for Volumetric Mix Design of Dense-Graded HMA
• Appendix F: Tutorial

The companion Excel spreadsheet HMA tool and the training course materials described in NCHRP Report 673 are available for download from the Internet.

In January 2012, TRB released NCHRP Report 714: Special Mixture Design Considerations and Methods for Warm Mix Asphalt: A Supplement to NCHRP Report 673: A Manual for Design of Hot Mix Asphalt with Commentary. The report presents special mixture design considerations and methods used with warm mix asphalt.

In January 2012, TRB released an errata to NCHRP Report 673: Page 41, Table 4-7, and page 123, Table 8-10, respectively, should be replaced with a new table.

NCHRP Report 673:

A Manual for Design of Hot-Mix Asphalt with Commentary

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