Vegetation, soft particles, clay lumps, excess dust and vegetable matter are not desirable because they generally affect performance by quickly degrading, which causes a loss of structural support and/or prevents binder-aggregate bonding. To test for clay lumps or friable particles, a sample is first washed and dried to remove material passing ...
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The gradation of the final aggregate base material shall meet the requirements of the gradation given in Table 209-2 when tested per ATM 304. The gradation shall be well graded from coarse to fine and shall not vary from the lower limit on one sieve to the high limit on an adjacent sieve or vice versa.
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a. Aggregate base materials. The Contractor shall take samples of the aggregate base in accordance with ATM 301 to verify initial aggregate base requirements and gradation. Material shall meet the requirements in Subsection 209-2.1. This sampling and testing will be the basis for approval of the aggregate base quality requirements. b.
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Table 1 Sample Sizes for Coarse aggregate When testing for Clay Lumps and Friable Particles. Sizes of Particles Making Up Test Sample No. 4 to 3/8 in (4.75 to 9.5 mm) 3/8 …
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2202.2 Material: The base course material shall consist of crushed stone aggregate with not more than 1.0% clay lumps and friable particles in accordance with ASTM C 142, and free from vegetable or other deleterious substances. The abrasion loss shall be no more than 35% when tested in accordance with ASTM C 131. That fraction passing the 1
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5.9.07 CLAY LUMPS AND FRIABLE PARTICLES IN AGGREGATE (Kansas Test Method KT-7) 1. SCOPE This method of test covers the procedure of determining the percentage of clay lumps and friable particles in aggregate. Whenever mud balls and clay balls are referred to in specifications, they shall be considered as clay lumps.
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5.5 In the case of mixtures of fine and coarse aggregates, separate the material on the 4.75-mm (No. 4) sieve, and prepare the samples of fine and coarse aggregates in accor …
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7.1 Calculate the percent of clay lumps and friable particles in fine aggregate or individual sizes of coarse aggregate as follows: P 5 @~M 2 R!/M# 3100 (1) where: P = percent of …
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asphalt and mineral aggregate and a base course. The base course is generally com posed of granular material such as crushed aggregate, gravel, selected soil, or a mix ture of selected soil and aggregate. Since the cost of the surface course per ton is sev eral times that of the base course, its thickness is generally just a fraction of ...
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What is Aggregate Base Course. Aggregate Base Course (ABC) is a construction material used in road, highways, pavements and various other infrastructure projects. In addition, it is used in as ground improvement material. It plays a crucial role in providing structural support and stability to the road or pavement surface.
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Standard Method of Test for Clay Lumps and Friable Particles in Aggregate (ASTM C142-78 (R 1984)) A description is not available for this item. T112. January 1, 1991 Standard Specification for Clay Lumps and Friable Particles in Aggregate ... Standard Specification for Materials for Ultrathin Bonded Wearing Course. Published by …
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Note that the description for each aggregate quality class can be found in the relevant links to agency specifications presented in Appendix D. 4.4.7 Permeable Drainage Layer Kazmierowski et al. (1994) evaluated the field performances of several types of open-graded base course permeable layers, including layers stabilized with 200 and 300 lb ...
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Clay Lumps. Plastic Index. Organic Material ... For the wearing course have no more than 50% retained between two consecutive sieves below the #4 sieve. Note: Crushed gravel or stone processed from coarse aggregate meeting requirements of 4127.02. AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE. October 18, 2022 (See …
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12 loss for aggregate used in OGAFC shall be 45%. The percentage loss for aggregate 13 used in UBWC shall be no more than 35%. 14 (7) Deleterious Materials 15 The maximum allowable percentage by weight of clay lumps and friable particles in 16 individual aggregate sources shall be 0.3% when tested in accordance with 17 AASHTO T 112.
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8. Surface-Course Materials 8.1 Soil-aggregate materials for surface course shall con-form to the requirements of Section 5 and Table 1 for Type I, Gradation C or D; or forType II Gradation E or F.The type and grading shall be specified. NOTE 4—When materials are being used for surface courses, the
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The percentage of clay lumps in aggregates shall be calculated in accordance with the following formula: Formula to Calculate Clay Lumps in Aggregates:-. Where. L = percentage of clay lumps, W = weight of sample, and. R = weight of sample after removal of clay lumps. Reporting of Results:-.
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Wells and Adams (1997) successfully constructed aggregate base courses in single-lift depths of 10 and 12 in., which were greater than the 8-in. maximum allowed by North …
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(Table 1). If not stated, the 1.0 % limit shall apply. 4 Withdrawn. The last approved version of this historical standard is referenced on TABLE 1 Limits for Deleterious Substances in Fine Aggregate for Concrete Item Mass Percent of Total Sample, max Clay lumps and friable particles 3.0 Material finer than 75-µm (No. 200) sieve:
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903.05-Aggregate for Mineral Aggregate Base and Surface Courses..... 694 903.06-Aggregate for Plant Mix Base and Leveling Courses (Hot Mix) 696 ... Limits Per Cent by Weight 1. Clay Lumps 0.5 2. Coal and Lignite 0.5 3. Material Passing the 75 µm ... conform with these Specifications. The aggregate shall be of two classes: Class A and Class B. ...
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GRADED AGGREGATE BASE 204-1 Description. Construct a base course composed of graded aggregate. 204-2 Materials. Use graded aggregate material, produced from …
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Asphalt material should be added to the aggregate at a rate of between 4 and 7 mass percent of the dry aggregate. Item 206 Portland Cement Treated Plant Mix Base Course A. Travel Plant Mixing Method: The salvaged or new aggregate is crushed until at least 80% of all components other than stone or gravel pass through a 4.75 mm …
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5. Section 32 11 23, Aggregate Base Course 1.03 REFERENCES A. The following is a list of standards, which may be referenced in this section: 1. American Association of State Highway and Transportation Officials (AASHTO): a. M147, Standard Specification for Materials for Aggregate and Soil-Aggregate Subbase, Base, and Surface Courses. b.
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SECTION 3.03 AGGREGATE BASE COURSE _____ 13 3.03.01 SCOPE_____ 13 ... Tall Abbas El Gharbi Sewage Network Construction Specifications P-1505 MATERIALS FOR SUB BASE AND BASE COURSE 3.01 - Page 1 of 17 SECTION 3.01 MATERIALS FOR SUB-BASE AND BASE COURSES ... Percentage of fractured Grains (Base course) 5. …
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Clay lumps and friable particles ; Less than or equal to 3 percent : ASTM C142 : Fine Aggregate . Clay lumps and friable particles . Less than or equal to 3 percent : ASTM C142 : Soundness of Aggregates by Use of Sodium Sulfate . or . Magnesium Sulfate . Loss after 5 cycles: 10% maximum using Sodium sulfate - or - 15% maximum using …
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The necessity for meeting grades dictates that maximum top size does not exceed 75 mm (3 inches). When this specification is to be used as base course for roads, streets, and …
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b. The base course beneath rigid pavements. c. Select-Materials are typically locally available coarse grained soils with a maximum CBR of 20 when used in a flexible pavement section. When this guide specification is used for aggregate base course under rigid pavement, edit section title of the project specification to: BASE COURSE FOR
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7.1 Calculate the percent of clay lumps and friable particles in fine aggregate or individual sizes of coarse aggregate as follows: P 5 @~M 2 R!/M# 3100 (1) where: P = percent of clay lumps and friable particles, M = mass of test sample (for fine aggregate the mass of the portion coarser than the 1.18-mm (No. 16) sieve as described in 5.3), and
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