• Study of Stone Matrix Asphalt For The Flexible Pavement

    Stone Matrix Asphalt Pavement is hot mix asphalt consisting of two parts a coarse aggregate skeleton and a binder rich mortar It is made up of a mixture of crushed coarse and fine aggregates mineral Filler asphalt cement and a stabilizer for the binder such as polymer or fibr

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  • MATERIAL SPECIFICATION FOR SUPERPAVE AND STONE

    Nominal Maximum Aggregate Size (NMAS)means one sieve size larger than the first sieve to retain more than 10% Performance Graded Asphalt Cement (PGAC) Stone Mastic Asphalt or Stone Matrix Asphalt (SMA) means HMA consisting of two parts of a coarse aggregate skeleton and an asphalt binder rich mortar The mix has a gap graded aggregate

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  • Stone Matrix Asphalt Pavement Interactive

    Stone matrix asphalt (SMA) is a gap graded HMA (Figure 1) that is designed to maximize deformation (rutting) resistance and durability by using a structural basis of stone on stone contact (Figures 2 6)Because the aggregates are all in contact rut resistance relies on aggregate properties rather than asphalt binder properti Since aggregates do not deform as much as asphalt binder under

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  • GUIDANCE NOTES APPLICATION OF POLYMER MODIFIED

    1 Introduction 11 This set of Guidance Notes updates the application of polymer modified stone mastic asphalt with 10mm nominal maximum aggregate size (PMSMA10) on bituminous

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  • Stone Mastic Asphalt Civil Engineering

    These are Dense Graded asphalt Stone Mastic Asphalt and Open Graded Asphalt Stone mastic asphalt (SMA) is a stone on stone like skeletal structure of gap graded aggregate bonded together by mastic which actually is higher binder content filler and fiber to reduce the binder drain

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  • STANDARD CONSTRUCTION SPECIFICATIONS FOR ASPHALT

    ASTM C 131 Test for Resistance to Abrasion of Small Size Coarse Aggregate by Analysis of Fine and Coarse Aggregate ASTM C 183 Sampling Hydraulic Cement ASTM D 75 Sampling Stone Slag Gravel Sand and Stone Block for Use as Highway Materials construction of a seal coat of asphalt cement and cover aggregate on RAP strip paved and

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  • Fibre Asphalt Stone Mastic Asphalt | Breedon Group

    As a rule of thumb however the depth should be at least 4 times the dimension of the largest nominal size in the mix for surface course (ie 40mm depth for 10mm asphalt concrete); and at least 25 times the dimension of the largest aggregate size in the mix for base and binder courses (ie 50mm for 20mm asphalt concrete) 8

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  • A summary of road surfaces options and characteristics

    SMA on the other hand consists mainly of a stone grading with a much smaller amount of filler As the total aggregate surface area is much smaller it requires much less bitumen to bind it HRA wearing course (top layer) is typically laid at 50mm thickness and needs to be because the rolled in chippings are 20mm nominal size

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  • Highways and Transportation Surfacing Guidelines Surface

    Highways and Transportation Surfacing Guidelines Surface Courses Notes for Guidance on selection of materials (continued) Generic Stone Mastic Asphalt (SMA 10 (or 14) Surf 40/60) An alternative to HRA and Thin Surface Courses for use on roads with speeds limits less than 40 mph

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  • Stone Mastic Asphalt (SMA) Kilsaran International

    Stone Mastic Asphalt (SMA) is a gap graded mix laid between 30mm and 40mm thickness It may be manufactured using a polymer modified binder (PMB) giving the aggregate skeleton additional strength SMA is used in the construction of new roads and overlaying existing roads and offers superior durability and resistance to deformation

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  • (PDF) Effects of filler type and particle size on

    Effects of filler type and particle size on permanent deformation of Stone Mastic Asphalt (SMA) mixtures in turn leads the asphalt cement to coat the aggregate particles with a thicker film

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  • Laboratory performance of stone matrix asphalt mixtures

    Abstract Stone matrix asphalt (SMA) is a gap graded bituminous mixture which can be used in surface layer of high volume pavements The mixture has higher concentrations of coarse aggregates providing strength and rut resistance to the mixture and higher asphalt content giving durability

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  • Difference Between Dense Bitumen Macadam And Asphalt Concrete

    a comparison between bending and diametral1999 6 25 abstract this paper presents laboratory fatigue results on five bituminous paving mixtures including a hot rolled asphalt a dense bitumen macadam and a stone mastic asphalt

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  • Asphalt Dynapac Applications

    Stone mastic asphalt (SMA) Mix proportions of two different asphalt mixes with a maximum aggregate size of 16 mm On the left is a dense asphalt concrete and on the right a stone mastic asphalt (SMA) Note the high content of large aggregate in the SMA

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  • Asphalt concrete Wikipedia

    Asphalt concrete (commonly called asphalt blacktop or pavement in North America and tarmac bitumen macadam or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads parking lots airports as well as the core of embankment dams It consists of mineral aggregate bound together with asphalt laid in layers and compacted

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  • AGGREGATE AND ASPHALT MIXTURE SPECIFIC GRAVITY

    The design process for Stone Mastic Asphalt involves adjusting the grading to accommodate the required binder content (minimum of 6% to 7% depending on maximum aggregate particle size) and voids content rather than the traditional design process for other asphalt mixes of adjusting the binder content to suit an aggregate gradation

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  • ONTARIO OPSSMUNI 1151 PROVINCIAL April 2018

    mixes for each nominal maximum aggregate size RAP Content means the amount of RAP expressed as a percentage by mass of the mix April 2018 Page 4 of 25 OPSSMUNI 1151 Reclaimed Asphalt Pavement (RAP)means the processed HMA material that is recovered by partial or Stone Mastic Asphalt or Stone Matrix Asphalt (SMA) means HMA consisting of

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  • (PDF) Effects of filler type and particle size on

    Effects of filler type and particle size on permanent deformation of Stone Mastic Asphalt (SMA) mixtures in turn leads the asphalt cement to coat the aggregate particles with a thicker film

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  • Performance Evaluation of Stone Mastic Asphalt and Hot Mix

    Environmental and economic considerations have encouraged civil engineers to find ways to reuse recycled materials in new constructions The current paper presents an experimental research on the possibility of utilizing recycled concrete aggregates (RCA) in stone mastic asphalt (SMA) and hot mix asphalt (HMA) mixtur Three categories of RCA in various percentages were mixed with

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  • Stone Mastic Asphalt Trials in Ontario

    rience using local aggregates fillers engineered asphalt cements and fibers SMA is a gap graded dense hot mix asphalt with a large proportion of coarse aggregate (passing 2 mm limited to about 20 percent all crushed material) and a rich asphalt cement/ filler mastic The coarse aggregate forms a high stability structural matrix

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  • Effect of Mineral Filler Type and Particle Size on Asphalt

    content consists of 10% by total weight of aggregate with three proportions; passing 75micron (µm) 50/50 % passing 75µm/20µm and passing 20µm was and filler particle size on some properties of asphalt filler mastics and Stone Mastic products wastes as filler improves the properties of asphalt filler mastic and SMA mixtur

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  • Stone Matrix Asphalt

    Stone Matrix Asphalt Stone Matrix Asphalt (SMA) also called stone mastic asphalt was developed in Germany in the 1960s to provide heavily trafficked roads with a durable rut resistant wearing course using a gap graded aggregate structure and a modified asphalt binder at elevated asphalt contents

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  • Effect of Filler Type and Particle Size on Moisture

    particle size on the moisture susceptibility of Stone Mastic Asphalt (SMA) mixtur Tensile strength and retained Marshall Stability of each mixture was measured and was compared to the reference

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  • M10 Notes to the Specification for Dense Graded and Stone

    NZTA M10 Notes 2014 SP/NM10 140905 Notes to the Specification for Dense Graded and Stone Mastic AsphaltPage 3 of 13 particles derived from aggregates as well as added fine materials such as lime fly ash etc In practice materials used as added filler are comprised predominantly of particles smaller than 0075

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  • GUIDANCE NOTES APPLICATION OF POLYMER MODIFIED

    1 Introduction 11 This set of Guidance Notes updates the application of polymer modified stone mastic asphalt with 10mm nominal maximum aggregate size (PMSMA10) on bituminous

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