Fine-Aggregate Angularity: Automated Image Analysis Approach
2018.12.10 The proposed imaging techniques are used to capture the aggregate angularity of 23 sand samples that represent a wide range of materials. The results are
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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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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
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Fine Aggregate Angularity: Conventional and
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
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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
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Determination of fine aggregate angularity in relation with
2005.3.1 One factor that has been identified in determining asphalt pavement rutting susceptibility is the fine aggregate angularity (FAA) in the asphalt aggregate mix. The
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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.
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Fine-Aggregate Angularity: Automated Image Analysis Approach
2000.1.1 The results are compared with visual analysis and indirect methods of measuring fine-aggregate angularity, such as the uncompacted air voids, and the angle
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Effect of Fine Aggregate Angularity on Compaction and
2002.1.1 The effect of fine aggregate angularity (FAA) on the densification characteristics of asphalt mixtures was evaluated with the Superpave® gyratory
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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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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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Implementation of a Fine Aggregate Angularity Test
2024.7.13 Method C, the "as-received" gradation is tested.2The size o. sample required for the test is always 190 grams. In Method A, the size of the fine aggregate tested is between the 2.3. mm (No.8) sieve and the 0.150 mm (No.1 00) sieve. In Method B, the size of the fine aggregate tested is between the 2.
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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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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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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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Effect of Fine Aggregate Angularity on Asphalt Mixture
1999.7.1 Superpave aggregate qualification includes the fine aggregate angularity (FAA). FAA levels used in the Superpave system are below 40, 40 to 45 and above 45. The higher values are specified for layers near the surface and for higher traffic levels. The objective of this study was to address the effect of FAA on asphalt mixture rutting
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(PDF) Fine Aggregate Angularity Effects on Rutting Resistance
2013.10.24 Ramli et al. (2013) studied the effects of fine aggregate angularity on rutting and noted that mixes with more angular aggregates are less susceptible to rutting. In a recent study by Hossain ...
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Effect of fine aggregate angularity on skid-resistance of
2018.4.20 Cong and Wang [11] found that fine aggregate angularity (FAA) had a significant impact on skid resistance on the macrotexture level but only a marginal influence was observed on the microtexture ...
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Image-Based Coarse-Aggregate Angularity Analysis and Evaluation ...
Subsequently, the aggregate particle angularity parameters, including circumference, area, convex hull circumference, convex hull area, and total number of corner points, were calculated. Meanwhile, the aggregate imaging system (AIMS) gradient, skeleton extraction, convex hull, and uncompacted void content (UVC) methods were used to evaluate ...
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Fine Aggregate Angularity from Geotechnical Perspective
2008.1.1 The fine aggregate angularity test as specified by AASHTO T304 can be. performed on a fine aggregate source usi n g three test methods identified as. Method’s A, B, and C. Method A utilizes a ...
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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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Contribution of Fine Aggregate Angularity and Particle Shape
1998.1.1 Fine aggregate angularity (FAA) requirements, one of the aggregate consensus properties, has generated considerable debate in some areas of the country. Adopting an FAA requirement of 45 percent for high traffic pavements has changed the number of sources available for asphalt mixtures. Superpave also provides a limit on flat
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Manual for Fine Aggregate Angularity Apparatus
2020.10.6 Fine Aggregate Angularity Apparatus 9102 and 9102-DJM Rev:10/2020 OPERATING MANUAL ® PHONE: 800-999-SOIL (7645) PO Box 1213 Powell, OH 43065 410-987-7330 E-mail: customerservice@karolwarner Product Web Page: karolwarner FAX: 410-987-2124 9102-DJM
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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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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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Aggregate Texture and Shape, What You Should Know
AASHTO T 326 Coarse Aggregate Angularity tests use the same procedure as the fine aggregate angularity test to determine the uncompacted void content of coarse aggregate. The coarse aggregate angularity apparatus is scaled up in size to accommodate the larger aggregate particles. There are two procedures to test combined graded aggregates and ...
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Tests for Evaluating Fine Aggregate Particle Shape, Angularity
1999.1.1 Particle shape, angularity, and surface texture are critical properties in assessing fine aggregate quality for asphalt concrete. The index for aggregate particle shape and texture and uncompacted voids tests indirectly measure these properties. Several sources of fine aggregate from Alabama were evaluated by both tests.
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Determination of fine aggregate angularity in relation with
2005.3.1 Introduction of materials with high angularity into asphalt mixtures leads to friction increase and, subsequently, resist deformation more after initial compaction, and shortage of fine aggregate ...
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Materials Free Full-Text Effect of Different Fine Aggregate ...
2023.3.3 The FAA of different fine aggregates was tested to analyze the effect of shape characteristics on the property of sand concrete. Five replicates of each fine aggregate were measured according to the angularity experiment of fine aggregate in the JTG E42-2005 engineering test procedure, and the average FAA values are shown in
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Effect of Fine Aggregate Form, Angularity and Texture on the ...
2014.6.1 Fine aggregate angularity (FAA) requirement is one of,the aggregate consensus properties recommended by SHRP. Many state highway departments include FAA as part of their Superpave(R) mixture ...
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Fine-Aggregate Angularity: Automated Image Analysis Approach
2018.12.10 The proposed imaging techniques are used to capture the aggregate angularity of 23 sand samples that represent a wide range of materials. The results are compared with visual analysis and indirect methods of measuring fine-aggregate angularity, such as the uncompacted air voids, and the angle of internal friction of aggregate mass.
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Test Methods for Characterizing Aggregate Shape, Texture, and Angularity
Uncompacted void content of fine aggregates (also known as Fine Aggregate Angularity [FAA] test) and uncompacted void content of coarse aggregates were selected for further evaluation because they are widely used and cheaper and easier to use than other tests in the same group. Janoo and Korhonen (1) concluded that the FAA test was the easiest ...
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Fine Aggregate Angularity: Conventional and
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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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Superpave Mix Design – Pavement Interactive
Aggregate Selection. Superpave specifies aggregate in two ways. First, it places restrictions on aggregate gradation by means of broad control points. Second, it places “consensus requirements” on coarse and fine aggregate angularity, flat
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Effect of Fine Aggregate Angularity on Compaction and
2019.4.29 The effect of fine aggregate angularity (FAA) on the densification characteristics of asphalt mixtures was evaluated with the Superpave ® gyratory compactor (SGC). Aggregates from three different sources used in production of Superpave mixtures in Wisconsin were studied. From each source, a fine gradation and a coarse-shaped
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Fine Aggregate Angularity PDF Construction Aggregate
2023.10.19 Fine Aggregate Angularity - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document presents the results of a study to develop a specification and implementation plan for quantitatively defining the angularity of manufactured and natural fine aggregates used in asphalt paving. Two test methods,
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