Accueil Produit Cas À propos de nous Contacts

fine aggregate angularity

2021-02-10T20:02:29+00:00
  • Fine Aggregate Angularity – Pavement Interactive

    The fine aggregate angularity (FAA) test (Figure 1) is an indirect method of assessing the angularity of fine aggregate Fine aggregate angularity is important because an excess of rounded fine aggregate (often in the form of natural sand) can lead to HMA rutting The FAA test estimates fine aggregate angularity by measuring the loose uncompacted void content of a fine aggregate sample On a sample of known gradation, the loose uncompacted void content is indicative of th
  • 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 the loosely compacted sample; however, this is not always true The paving and aggregate industries have found that cubical shaped particles, even with 100

  • Cited by: 2[PDF]
  • Implementation of a Fine Aggregate Angularity Test

      Implementation of a Fine Aggregate Angularity Test Tim Aschenbrener 10 Introduction Rutting of a hot mix asphalt (HMA) pavement is primarily related to aggregate structure and secondarily related to asphalt cement stiffness One of the key components of the aggregate structure is the angularity of the fine aggregate

  • 文件大小: 1MB
  • FineAggregate Angularity: Automated Image Analysis

      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 fineaggregate angularity, such as the uncompacted air voids, and the angle of internal friction of aggregate mass

  • Cited by: 92
  • Fine Aggregate Angularity from Geotechnical Perspective

      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 test, compacted aggregate resistance (CAR) test, modified light Clegg Hammer, and an aggregate imaging system device

  • Cited by: 4
  • Determination of fine aggregate angularity in relation

      The aggregate must have the appropriate gradation and shape to design asphaltic mixtures with long and satisfactory service lifes Fine aggregate is a primary constituent of asphaltic mixtures and the amount and angularity of fine aggregate are important factors affecting the performance of HMA mixtures

  • Cited by: 115
  • Effect of fine aggregate angularity on skidresistance of

      The effect of fine aggregate angularity (FAA) on the skidresistance 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

  • Cited by: 23
  • "Effect of Fine Aggregate Angularity on Asphalt Mixture

      Superpave aggregate qualification includes the fine aggregate angularity (FAA) Fine aggregate angularity 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 fine aggregate angularity on asphalt mixture

  • Cited by: 25[PDF]
  • 1206 AASHTO Designation T 304 12061 12062

      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

  • 文件大小: 60KB
  • 粗集料棱角性的图像评价方法《东南大学学报(自然科学版)》

      A,Sengoz BDetermination of fine aggregate angularity in relation with the resistance to rutting of hotmix asphalt [J]Construction and Building Materials,2005,19(2):155163 [3] Shu X,Huang B,Chen X,et alEffect of coarse aggregate angularity on

  • 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 the loosely compacted sample; however, this is not always true The paving and aggregate industries have found that cubical shaped particles, even with 100

  • Fine Aggregate Angularity from Geotechnical Perspective

      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 test, compacted

  • 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 the loosely compacted sample; however, this is not always true The paving and aggregate industries have found that cubical shaped particles, even with 100

  • Determination of fine aggregate angularity in relation

      The aggregate must have the appropriate gradation and shape to design asphaltic mixtures with long and satisfactory service lifes Fine aggregate is a primary constituent of asphaltic mixtures and the amount and angularity of fine aggregate are important factors affecting the performance of HMA mixtures

  • Fine Aggregate Angularity Apparatus Gilson Co

    The Fine Aggregate Angularity Apparatus determines the uncompacted void content of fine aggregates to determine angularity and sphericity properties that affect the workability of mixed designs Gilson offers two models for this popular test Each sample is mixed with a spatula until homogeneous and transferred to the hopper while the discharge

  • Fine Aggregate Angularity Apparatus Gordon Technical

      Fine Aggregate Angularity Apparatus is used to determine the loose uncompacted void content of aggregate This testing method provides an indication of aggregate spherical shape, angularity, and workability within a mixture Test sample is mixed until homogeneous and poured into the funnel of the device while the funnel stem is blocked The sample is then

  • [PDF]
  • Evaluation of Fine Aggregate Angularity Using National

    Evaluation of Fine Aggregate Angularity Using National Aggregate Association Flow Test STEPHEN A CROSS, BARBARA J SMITH, AND KAREN A CLOWERS The state of Kansas currently requires a mm1mum percentage of crushed aggregate in their highstability hotmix asphalt mixtures The

  • Contribution of Fine Aggregate Angularity and Particle

      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 and elongated

  • [PDF]
  • Characterization of coarse aggregate angularity using

      Increasing fine aggregate angularity will increase the VMA (voids in mineral aggregate) thereby reducing durability of the pavement (D’Angelo 1996) The shape, angularity, and texture of aggregates affect several Portland cement concrete (PCC) properties, such as workability, water demand, and coarse aggregate2

  • [PDF]
  • Inspection Sampling Procedures for Fine Coarse

      Fine Aggregate Angularity Plastic Limit Surface Moisture Tests CHAPTER FIVE AGGREGATE SPECIFICATIONS AND REQUIREMENTS Physical Quality Requirements Fine Aggregates Coarse Aggregates Physical Quality Tests Absorption Abrasion Resistance Soundness Deleterious Special Requirements

  • Details Cantrol Online

    The fine aggregate angularity (FAA) test is an indirect method of assessing the angularity of fine aggregate Fine aggregate angularity is important because an excess of rounded fine aggregate (often in the form of natural sand) can lead to HMA rutting The FAA test estimates fine aggregate angularity by measuring the loose uncompacted void

  • [PDF]
  • Evaluation of Fine Aggregate Angularity Using National

    TRANSPORTATION RESEARCH RECORD 1437 43 Evaluation of Fine Aggregate Angularity Using National Aggregate Association Flow Test STEPHEN A CROSS, BARBARA J SMITH, AND KAREN A CLOWERS The state of Kansas currently requires a mm1mum percentage of

  • Fine Aggregate Angularity Apparatus Gilson Co

    The Fine Aggregate Angularity Apparatus determines the uncompacted void content of fine aggregates to determine angularity and sphericity properties that affect the workability of mixed designs Gilson offers two models for this popular test Each sample is mixed with a spatula until homogeneous and transferred to the hopper while the discharge

  • Fresh and hardened properties of highstrength concrete

      Saha A, Sarker P Mechanical properties of concrete using ferronickel slag as fine aggregate and supplementary cementitious material Concrete in Australia, 2018, 44(4): 40–44 Google Scholar 5 Hudson B Modification to the fine aggregate angularity test

  • Fine Aggregate Angularity (FAA) (20)

    Welcome to the Fine Aggregate Angularity course This course describes the fine aggregate angularity (FAA) test, a method of determining the angularity of fine aggregate, which is important in determining hot mix asphalt mixture

  • ASTMC1252 Standard Test Methods for Uncompacted

    Scope 11 These test methods describe 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

  • Fine Aggregate Angularity (FAA) (20) TalentLMS

    Fine Aggregate Angularity (FAA) (20) Description Welcome to the Fine Aggregate Angularity course This course describes the fine aggregate angularity (FAA) test, a method of determining the angularity of fine aggregate, which is important in

  • Angularity Number Test for Coarse Aggregate, Shape Test

      Procedure of Angularity Number Test for Coarse Aggregate: Sieve the aggregate sample with sieves specified in Table 1 Fill the metal cylinder with water and record its volume Take sufficient quantity of aggregate to perform

  • [PDF]
  • DOTD TR 121 10/11/17 Page 1 8 FINE AGGREGATE

      FINE AGGREGATE ANGULARITY – FAA (UNCOMPACTED VOID CONTENT OF FINE AGGREGATE) DOTD Designation: TR 121 (AASHTO T 304) I Scope A This method of test determines the loose uncompacted void content of fine aggregate samples Uncompacted void content provides an indication of angularity, sphericity, and surface texture

  • [PDF]
  • UNCOMPACTED VOID CONTENT OF FINE AGGREGATE

      Specific Gravity of Fine Aggregate If the bulk specific gravity (G sb) of the fine aggregate sample is unknown, determine it according to Idaho IT144 Procedure 1 Record all masses to the nearest 01 g 2 Record the mass of the empty measure 3 Mix each test sample with the spatula until it appears to be homogeneous 4