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  • Effect of fine aggregate angularity on skid-resistance of

    2018.4.20  The effect of fine aggregate angularity (FAA) on the skid-resistance of asphalt pavement was investigated in the paper. To achieve the objective, four fine

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  • Determination of fine aggregate angularity in relation with

    2005.3.1  Fine aggregate is a primary constituent of asphaltic mixtures and the amount and angularity of fine aggregate are important factors affecting the performance

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  • Fine-Aggregate Angularity: Automated Image Analysis Approach

    2001.1.1  Therefore, methods that are able to rapidly and accurately describe aggregate angularity are valuable in the design process of asphalt mixtures. Two

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  • Fine Aggregate Angularity Apparatus - Gilson Co.

    The Fine Aggregate Angularity Apparatus measures the uncompacted void content of fine aggregates to determine angularity and sphericity properties that affect the workability of mix designs. The test begins with the

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  • Fine Aggregate Angularity from Geotechnical Perspective

    2011.9.19  This paper will discuss particle angularity from a geotechnical point of view and it will hopefully answer the question: Do these tests really measure fine aggregate

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  • Effect of aggregate properties on asphalt pavement friction

    2021.7.19  , Zaman Musharraf c Add to Mendeley doi/10.1016/j.conbuildmat.2021.123467 Get rights and content Highlights •

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  • (PDF) Fine Aggregate Angularity Effects on Rutting

    2013.10.24  Fine Aggregate Angularity (FAA) has been identified as one of the important aggregate properties contributing to the stability of Hot Mix Asphalt (HMA) and its resistance against permanent...

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  • Fine-Aggregate Angularity: Automated Image Analysis Approach

    2000.1.1  Angularity is one of the important aggregate properties contributing to the permanent deformation resistance of asphalt mixtures. Therefore, methods that are able

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  • (PDF) LABORATORY EVALUATION OF THE FINE

    2002.1.1  The Fine Aggregate Angularity test (FAA), adopted by Superpave to evaluate the shape, angularity and surface texture of fine aggregate particles, has left a lot of doubts regarding its suitability.

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  • Understanding influence of crushers on shape characteristics of fine ...

    2017.9.30  The fine aggregate angularity (FAA) play a crucial role in providing rut resistant asphalt mixes [8], [9]. Aggregate shape mainly depends on types of rocks and associated crushing mechanism [10]. Usually, different types of crushers: vertical shaft impact crusher, horizontal shaft impact crusher, cone crusher and jaw crushers are used

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  • Standard Test Methods for Uncompacted Void Content of Fine Aggregate ...

    2023.6.19  1.1 These test methods cover the determination of the loose, uncompacted void content of a sample of fine aggregate. When measured on any aggregate of a known grading, void content provides an indication of that aggregate's angularity, sphericity, and surface texture compared with other fine aggregates tested in the same grading.

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  • FINE AGGREGATE ANGULARITY TEST - Minnesota

    2010.4.16  The fine aggregate angularity test determines the loose uncompacted void content of a fine aggregate material. The void content information derived from this test gives you an indication of the effect fine aggregate will have on stability and voids in the mineral aggregate. AASHTO T 304 lists three different test methods (A, B, C) to ...

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  • (PDF) Fine Aggregate Angularity Effects on Rutting Resistance

    2013.10.24  The angularity of coarse and fine aggregates has an impact on the strength, stiffness, permeability and air void parameters of asphalt mixtures. Ramli et al. (2013) investigated the effect of ...

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  • Effect of aggregate properties on asphalt pavement friction

    2021.7.19  AIMS angularity, loss of angularity (%) and AIMS texture exhibit secondary contributions to pavement friction, whose importance values are 2.72%, 2.07%, and 2.00%. AIMS angularity is associated with the variations at the corners superimposed on aggregate shapes, which will affect the macro-texture of the pavement surface.

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  • Evaluation of morphological characteristics of fine aggregate

    2017.5.15  1. Introduction. Aggregate makes up a high mass fraction in asphalt pavements. Therefore the characteristics of aggregate have a considerable influence on the construction process and the quality of the pavement [1], [2], [3].The morphological characteristics of aggregate (i.e., shape factors, angularity, and surface texture)

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  • Appendix A Test Methods for Characterizing Aggregate

    The AIMS system will scan the entire tray and return to the starting point. 9.3.9. Fine aggregate image processing is identical to that for coarse aggregates, except no texture images are acquired. A-20 Test Methods for Characterizing Aggregate Shape, Texture, and Angularity Figure A-1-27. Gradient angularity screen for AIMS fine aggregate ...

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  • Fine Aggregate Angularity: Conventional and

    2001.1.1  This is an indirect method for estimating fine aggregate angularity and texture. The FAA test is based on the assumption that more fractured faces will result in higher void content in the loosely compacted sample; however, this is not always true. The paving and aggregate industries have found that cubical shaped particles, even with 100 ...

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  • (PDF) LABORATORY EVALUATION OF THE FINE AGGREGATE ANGULARITY (FAA) TEST

    2002.1.1  The Fine Aggregate Angularity test (FAA), adopted by Superpave to evaluate the shape, angularity and surface texture of fine aggregate particles, has left a lot of doubts regarding its suitability.

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  • Angularity - an overview ScienceDirect Topics

    In order to study the impact of fine aggregate angularity on the shear strength of the mix, this study selected one coarse aggregate and five different fine aggregates with the same gradation: Stone C is granite, Stone D is diabase, Stone E is river sand, and the other two are limestone. The fine aggregate angularity tests (air voids method) (T 0344-2000) were

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  • Fine-Aggregate Angularity: Automated Image Analysis Approach

    2000.1.1  The 19 different gradation and aggregate source combinations are tested using the Fine Aggregate Angularity Test Method C as outlined by AASHTO T304 (2003) and ASTM C1252 (2003), the direct shear ...

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  • Effect of fine aggregate angularity on skid-resistance of

    2018.4.20  The effect of fine aggregate angularity (FAA) on the skid-resistance of asphalt pavement was investigated in the paper. To achieve the objective, four fine aggregates with various FAA values were used in stone matrix asphalt (SMA) and conventional asphalt concrete (AC), separately. The Model Mobile Load Simulator

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  • Comprehensive Evaluation of AIMS Texture, Angularity, and

    2009.7.3  The various aggregate sets used in this study covered a broad range of angularity and texture. The AIMS measurements of the ratios of dimensions were found to have excellent agreement with the more accurate X-ray computed tomography values, but the measurements of the individual dimensions were systematically low by about 10%.

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  • Unified Imaging Approach for Measuring Aggregate Angularity

    2000.7.1  2 independent methods that integrate several aspects of image-analysis techniques for quantifying angularity and texture of fine aggregates are presented, which have potential benefit in quantifying effects of texture and angularity on asphalt pavement performance. The effect of fine aggregate morphologic properties on asphalt mixtures'

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  • Development in Aggregate Quality Characterization

    2022.3.24  2.3.2.2 Fine Aggregate Angularity (FAA) The fine aggregate characteristics in an aggregate matrix can have a significant effect on mix shear, workability, and rutting resistance. FAA is a crucial parameter to understand the quality of fine aggregates.

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  • Fine Aggregate Angularity from Geotechnical Perspective

    2011.9.19  Currently, the Superpave design method stipulates that the fine aggregate angularity (FAA) via AASHTO T304 be used as a test specification for fine aggregate. The objectives of this paper are to examine a number of methods for characterizing fine aggregate characteristics of aggregates commonly used in asphalt concrete pavements.

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  • Chapter 2 - Findings Test Methods for Characterizing Aggregate

    Fine Aggregate Angularity AHP was used to rank the test methods that measure fine aggregate angularity: uncompacted void content of fine aggre- gate (UCVCF), compacted aggregate resistance (CAR), Cam- sizer, Buffalo Wire Works (PSSDA-Small), and AIMS. In this example, the same weights (1) were assigned for all the charac- teristics in the ...

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  • Evaluation of image analysis techniques for quantifying aggregate

    2007.5.1  1.. IntroductionThe properties of coarse and fine aggregates used in hot-mix asphalt (HMA), hydraulic cement concrete, and unbound base and subbase layers have a significant influence on the engineering properties of the pavement structure in which they are used [10], [26](c), [20].The form, angularity, and texture of fine and coarse aggregate

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  • Quantification of aggregate morphologic characteristics with

    2016.10.15  The indirect methods include the following methods: testing fine aggregate angularity from the volume of air voids in a loosely compacted aggregate sample [15]; testing coarse aggregate angularity from the number of aggregate fractured faces [16]; identifying flat-elongated particles through relative dimensions of coarse aggregates [17].

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  • Characterization and evaluation of morphological features for aggregate ...

    2021.3.1  However, due to the irregularities of aggregate surfaces, there are some limitations existed in these methods: labor-intensive, time-consuming, subjective, lack direct relation with pavement performance, and distinguish the angularity and texture limitedly [13].In addition, most conventional testing methods obtained the morphological

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  • Aggregates SpringerLink

    2023.5.16  2.5.3 Angularity. Fine aggregates angularity is important because an excess of rounded fine aggregates may cause asphalt pavement rutting. According to specification JTG E42-2005 T0344 , the test estimates angularity by measuring the loose uncompacted void content of a fine aggregate sample using a funnel as shown in Fig.

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  • Summary Test Methods for Characterizing Aggregate

    For measuring the coarse aggregate shape only, the Multiple Ratio Shape analysis method (MRA) was the most appropriate and is much cheaper than all the other test methods. Similar to the imaging systems, the MRA provides the distribution of shape in an aggregate sample, but it cannot be used for measuring angularity or texture.

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  • Summary Aggregate Properties and the Performance of

    Fine Aggregate Angularity To measure the angularity of fine aggregate, the Superpave method specifies AASHTO T304, â Uncompacted Void Content in Fine Aggregate, Method A.â The test is included to ensure that there is sufficient internal frictionâ resulting from particle shape, angu- larity, and textureâ to provide rut-resistance in the HMA. ...

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  • Fresh and hardened properties of high-strength concrete

    2021.2.10  This paper presents the fresh and hardened properties of high-strength concrete comprising byproduct fine crushed aggregates (FCAs) sourced from the crushing of three different types of rocks, namely granophyre, basalt, and granite. The lowest void contents of the combined fine aggregates were observed when 40% to 60% of natural

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  • Understanding influence of crushers on shape characteristics of fine ...

    2017.9.30  The fine aggregate angularity (FAA) play a crucial role in providing rut resistant asphalt mixes [8], [9]. Aggregate shape mainly depends on types of rocks and associated crushing mechanism [10]. Usually, different types of crushers: vertical shaft impact crusher, horizontal shaft impact crusher, cone crusher and jaw crushers are used

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  • Effects of coarse aggregate angularity on the ... - ScienceDirect

    2018.9.20  The coarse aggregate, fine aggregate and mineral filler used in this study were limestone, which produced in Huxian County, Shaanxi Province, China. The performance indexes are shown in Table 1, Table 2, Table 3 [32]. A virgin asphalt binder (SK-90#, also known as penetration grade 90) was selected, and its basic properties are

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  • Pengaruh Fine Aggregate Angularity dan Persentase

    2019.11.11  Vol. 20 No. 1 April 2013 39 Rismantojo, Ismaniar. Abstrak Penelitian ini mempelajari pengaruh Fine Aggregate Angularity (FAA) dan persentase komponen pasir pada permeabilitas arah vertikal campuran tanah lempung residual tropis dan pasir yang dipadatkan.tropis dan pasir yang dipadatkan.

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  • Superpave Mix Design : Tests Methods and Requirements

    2019.8.27  Fine aggregate angularity is defined as the percent air voids present in loosely compacted aggregates smaller than 2.36 millimeter. Higher void contents correspond to higher fractured faces. In the test, a sample of fine aggregate is poured into a small calibrated cylinder by flowing through a

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  • Increasing sustainable aggregate usage in concrete by

    2022.2.28  For fine aggregate, only the angularity and the form 2D of particles are measured by the AIMS II system because they are smaller in size in comparison to coarse aggregate [12], [19]. 2.2.2.1. Sample preparation for AIMS II. From each fine aggregate source, a sample was sieved into individual sieve sizes from 4.75 mm (No. 4) to 75 μm

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