Asphalt mix designs pdf

Mixtures with high vma are preferred because of the following advantages. Asphalt pavement thickness and mix design while there are an infinite number of questions that can be asked, we compiled a list of those questions that have been directed to us the most. Trbs national cooperative highway research program nchrp report 673. Hot mix asphalt hma selection guidance december 2017.

Asphalt pavement association of michigan selecting the right mix 2937 atrium drive, suite 202 okemos, mi 48864 5173237800. The pavement mix types targeted are ogfc, sma, and fineand coarsegraded dense mixes. Properties considered in mix design superpave mix design method. Sixth edition 2019 new jersey asphalt pavement association. Submittal and approval of hot mix asphalt mix designs sop 34. Asphalt materials and mix design manual pdf the laboratory work is designed to develop an understanding of asphalt properties, characteristics, testing procedures, and specifications.

Balance to weigh up to 20 kg with an accuracy of 1g. Asphalt rubber applications asphalt rubber is the process of adding recycled, crumb rubber to hot mix asphalt called dry process or the asphalt binder called wet process to modify the final mixture difficult to use in densegraded mixtures due to residual crumb rubber best used in gapgraded type mixtures sma and ogfc. City of phoenix programming and project delivery division. Aggregate and rap if used constitute over 92 percent. Aashto r 35 standard practice for superpave volumetric design for asphalt mixtures. Mix design in hot mix asphalt, binder and aggregate are blended together in precise proportions. Asphalt mix types and properties mixes used in australia are generally limited to those made from mixtures of wellgraded aggregates from sources such as crushed stone, river gravel or crystalline slag, sand, suitable filler when required, and a road grade bitumen or sometimes tar. Aashto t 209 theoretical maximum specific gravity and density. Asphalt cold mix manual ms14 asphalt institute ms26 the asphalt binder handbook full book the asphalt handbook ms4, 7th edition, 2007, asphalt institute asphalt institute manual ms asphalt institute manual ms16 asphalt institute manual ms2 pdf asphalt institute ms4 asphalt institute ms 2 asphalt institute ms1 asphalt institute ms20 pdf asphalt institute ms22 pdf. Quality asphalt pavement may be constructed in a wide range of soil, weather, and loading conditions.

Introduction this guide note describes the process for registration of asphalt mix designs for use in works undertaken for the department of infrastructure, planning and logistics and other government associated. The final mix design should be workable and contain the most suitable gradation and amount of asphalt binder to produce a mix that embodies the best possible combination of all parameters. Well graded aggregates and mineral filler resulting in maximum density when mixed with optimum quantity of bitumen results in a mix with very high stability. Less viscous the asphalt requires lower the temperatures, while more viscous asphalt requires higher temperatures. Chapter 2 design and control of bituminous mixtures using. Aashto t 30 mechanical analysis of extracted aggregate. May 17, 2017 ce221 spring 2017 this video was produced with a swivl.

Designing concrete mixtures there are three phases in the development of a concrete mixture. Section 4 asphalt mix design and job mix formulas page no. Pdf laboratory optimization of asphalt concrete mixture design. The objective of the asphalt mix design is to achieve the following qualities in the hma. Asphalt mix design 2 australian asphalt pavement association 2012 2 design process asphalt mix design involves the following basic steps that are similar in concept, regardless of the actual tests and procedures used. Superpave overview nthe final product of the shrp asphalt. Developed at the national center for asphalt technology at auburn university in alabama, perroad uses the mechanisticempirical me design philosophy to estimate. In addition to managing asphalt sample results and mix designs, stonemontqc provides additional tools that provide you and your organization a total picture of quality.

Marshall method of mix design the basic concepts of the marshall mix design method were originally developed by bruce marshall of the mississippi highway department around 1939 and then refined by the u. This guidance applies to all approved hma mix design laboratories that design hma mixtures for indot contracts. Aashto t 166 bulk specific gravity of compacted bituminous mixtures. Aashto t 164 or t 308 quantative extraction of asphalt binder from hot mix asphalt. Asphalt laboratory florida department of transportation. Determine the mean target strength ft from the specified characteristic compressive strength at 28day fck and the level of quality control. Standard practice for determination of optimum emulsified asphalt content of cold inplace recycled mixtures acrobat, 52 kb wflhd sampling and testing methods acrobat, 3. All asphalt mix designs shall be stamped by a registered professional engineer in the state of colorado pursuant to section 1225117 of the colorado revised statutes. Pavement design for dummies boulder county resource conservation glasphalt research project prepared by lba associates, inc. Asphalt pavement thickness and mix design asphalt institute. Designmarshall method and this turkish standard 3720.

Characteristics of bituminous paving mixtures to meet structural. Establish for a given mix in consideration compact specimens at pb based on vbe for anticipated traffic. Scans of wetstamped mix design submittals in pdf format are. Note the binder supplier on the city of phoenix sample card. This guide presents examples of designs, procedures, and applications that have. Mix temperature is dependent on the grade of asphalt used in the mix. A manual for design of hotmix asphalt with commentary incorporates the many advances in materials characterization and hotmix asphalt hma mix design technology developed since the conclusion of the strategic highway research program shrp. The asphalt mixtures referred to in this manual are penndot job mix designs which are readily available throughout pennsylvania and have proven through extensive use to have all of the desirable characteristics of good asphalt pavements. This 2016 asphalt pavement design guide has been prepared to assist readers in understanding asphalt mix pavement design, construction, and rehabilitation. Agencies are typically using 60 to 75 gyrations for most of their designs, which is in the range of locking point determinations. Cominsky university of texas at austin with contributions by. Mix designs shall have an original manual ink signature. Practical approaches to hotmix asphalt mix design and production.

Aashto m 323 standard specification for superpave volumetric mix design. Mix designation numbers for bituminous mixtures 2360. The superpave mix design manual for new construction and. Asphalt pavement association of michigan selecting the right mix. Relationship of air voids, lift thickness, and permeability in hot mix asphalt pavements, washington, dc, transportation research board, national research council, 37 pp.

Ai the asphalt handbook ms4, 7th edition, 2007, asphalt. The asphalt pavement alliance has developed a position paper in order to discuss the primary considerations in pavement type selection as presented in the aashto guide in detail, and to present the advantages available from hot mix asphalt pavements in each of these. Mix design plant assignments asphalt mix design plant assignment sheets mac mix design recovery data 2014 recovered asphalt log xlsx378kb, updated 011615 2015 recovered asphalt log xlsx389kb, updated 122815 2016 recovered asphalt log xlsx336kb, updated 081616 pavement compositions and data sheets. Aashto m 332 standard specification for performancegraded asphalt. When aggregate and asphalt binder are combined to produce a homogenous substance, that substance, hma, takes on new physical properties that are related to but not identical to the. Add liquid asphalt to achieve the required air voids at ndes. Mixtype selection national asphalt pavement association. Submittal and approval of hot mix asphalt mix designs sop. Asphalt mix designs submitted to the tdot must exhibit certain physical performance properties indicated in standard specifications including but. Removed outdated references to changes in pg grade. Optimized mix design approach national asphalt pavement. Pdf design methods asphalt mix 7th edition ms2 asphalt mix.

Hma pavement mix type selection guide transportation. Pdf the asphalt pavement made of high quality materials and having the optimal composition best resists destructive effects of environmental factors. Pdf technological and economic design of asphalt mixture. The procedures outlined are all derived from astm designations and practice as recommended by the asphalt institute.

At the start of a mix design project, target temperatures are specified for proper mixing and compaction. A manual for design of hotmix asphalt with commentary. Ms4 the asphalt handbook 7th edition pdf mix design methods for asphalt concrete and other hot mix types. Pdf comparison of marshall and superpave asphalt design. About hot mix asphalt construction every year, the state of california invests millions of dollars in construction of hot mixed asphalt hma, previously known as asphalt concrete ac, pavement. In different sections of the state it may also be referred to as bituminous concrete,hot plant mix, asphalt concrete, blacktop or superpave. Superpavemix design was first introduced in 1993 with the. Superpave asphalt binder technology and superpave asphalt mixture design and analysis. Alternatively, asphalt mix components can be quickly substituted in all appropriate mixes. Manual of laboratory mix design procedure for cold in. Hma mix design is the process of determining what aggregate to use, what asphalt binder to use and what the optimum combination of these two ingredients ought to be. Special mixture design considerations and methods for warm mix asphalt. Cited table 6103 for dustbinder ratio requirements. Chapter 2 design and control of bituminous mixtures using a.

Asphalt mix design guide australian asphalt pavement association. The quality of asphalt concrete in flexible pavements plays a major role in the performance and durability of these pavements. Sp gyratory mixture design lv marshall mixture design low volume, 50 blow mv marshall mixture design medium volume, 50 blow. Asphalt mix design free download as powerpoint presentation. The superpave mix design manual for new construction and overlays ronald j. Registration of asphalt mix designs department of infrastructure, planning and logistics 29 november 2019 version 1 page 4 of 10 1. Nysdot technical report 0102 using reclaimed asphalt pavement in superpave hot mix asphalt. Producing high quality hma pavement requires a good partnership between caltrans, the plant producing the hma material and the contractor placing the hma.

Our nationwide network of the asphalt handbook 2007 is devoted to giving you the the asphalt handbook ms 4 7th edition. Superpave volumetric mix design procedure using recycled asphalt pavement. The mix design technology certification mdt course provides advanced technicians, designers, and engineers responsible for mix designs with a thorough understanding of the properties of the materials which compose asphalt mixtures, as well as the physical and mathematical processes involved in producing a successful asphalt mixture design. Because of the complexity of incorporating recycled or reclaimed asphalt pavement rap into hma mix designs, this topic is discussed in a separate chapter in this manual.

The publication of aprg report no 18 selection and design of asphalt mixes. For an example, refer to mndot geotechnical and pavement manual pages 53. Calculate the bearing capacity for each asphalt content. Free asphalt mix design software updated the asphalt pavement alliance introduces the latest version of a widely used mechanisticempirical approach to averting cracking and rutting. The superpave mix design manual for new construction and overlays. Asphalt materials is a locally owned company, organized in 1975, offering hot and cold asphalt mixes, utah topsoil, mulch, and landscape materials. A laboratory study of asphalt concrete mix designs for. The purpose of this document is to establish an acceptance procedure for hot mix asphalt mix designs. Design mixtures conforming to table 4601 and table 4602. The report presents special mixture design considerations and methods used with warm mix asphalt. This technical brief provides an overview of the intent of the superpave volumetric mix design and a suggested process to evaluate effects of changes to the gyration levels. Asphalt materials and mix design manual pdf download. Background of superpave asphalt mixture design and.

Mix designation numbers for bituminous mixtures 2360 mixture designations for asphalt mixtures contain the following information. Asphalt mix design manual for south africa, provisional working document november 2014 asphalt mix design manual for south africa draft document june 2014 southern african bitumen association sabita post net suite 56, private bag x21 howard place, 7450. The hma pavement mix type selection guide provides designers with methods for selecting appropriate mix types while considering factors such as traffic, environment, subsurface pavement structure, existing pavement condition and preparation, and economics. Aashto r 30 standard practice for mixture conditioning of hot mix asphalt hma. Mix design technology certification asphalt institute. Hma mixture design requirements, volumetric requirements. Calculate the limiting asphalt content at the tentative design asphalt content. Solterra materials, llc coolidge for all mix designs, verify the binder supplier from the ticket and specify which binder supplier is being utilized in the daily report. The design method for determining the suitable proportions of binder and aggregate in the asphalt mixture is the superpave method. Prepare g of mix, cool at room temp for 24 2 hrs bring oil bath to between 325 and 350of obtain a 200 g representative sample of the mix fill 2000 ml beaker about halfway with distilled water and heat to boiling add mix sample to beaker, maintain boil for 10 m 30 s remove beaker and skim asphalt from water surface. Additionally fundamental methods for the analysis and assessment of aggregate packing to optmise asphalt performance will be presented. The asphalt institute 1997 mix design methods for asphalt concrete and other hot mix types ms2, 6th ed.

There are four important hma parameters which the owner must specify in order to ensure the proper design. Hot mix asphalt may be referred to by several names. Aashto t 11 standard method of test for materials finer than 75 m. Hot mix asphalt hma is the most common type of asphalt pavement hma is made principally from aggregate and asphalt binder at elevated temper. The marshall stability of the mix design is defined as a maximum load carried by a compacted specimen at a standard temperature of 60 oc. Kennedy university of texas at austin michael anderson the asphalt institute strategic highway research program national research council washington, dc 1994. Pdf design methods asphalt mix 7th edition ms2 asphalt. Penndots bulletin 27 publication 27 provides the speci.

Skid resistance 43 impermeability 43 low temperatureshrinkage cracking 43 workability 43 economics 43 the mix design process 43 aggregate properties and gradation requirements 43 asphalt binder grade selection and requirements 44. The relative proportions of these materials determine the physical properties of the hma and ultimately how the hma performs as a finished pavement. Properties considered in mix design superpave mix design. Equations for the above calculations follow in this text and their application may be expedited by use of the appropriate worksheet figure 1. Mix designs may be developed based on bin or stockpile material, as appropriate for the respective mix production facility to be used. These faqs are categorized into subject areas listed in the contents dropdown box below. More information is available at rvalue design chart 331 kb pdf and tech memo.

Heavyduty mix selection criteria were used to bracket optimum mixes for supplemental testing and analysis. Aashto m 231 standard specification for weighing devices used in the testing of materials. A manual for design of hot mix asphalt with commentary. Scales of appropriate capacity and design to weigh the required samples. The substitution of another hma mixture type other than the recommended mixture is acceptable if it has demonstrated to perform under similar traffic conditions. Superpave mix design and gyratory compaction levels. These guidelines provide for the selection of hot mixed asphalt hma and application rates utilizing the superpave mix design system along with the marshall mix design system. Chapter 8 contains all the essential information needed to develop hma mix designs. Wearing courses binder courses base courses type of asphalt mix. Pdf on mar 6, 2006, khalid alshamsi and others published laboratory optimization of asphalt concrete mixture design find, read and cite all the research. Evaluation of segregated areas in hot mix asphalt pavement.