15. AASHTO T 84 - Standard Method of Test for Specific Gravity and Absorption of Fine Aggregate. 16. AASHTO T 85 - Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate. 17. AASHTO T 100 - Standard Method of Test for Specific Gravity of Soils. 18. AASHTO T 166 – Standard Method of Test for Bulk Specific Gravity (Gmb) of
Following procedure used for specific gravity and water absorption test of aggregate, 1. Take about 2 kg of aggregate sample (Aggregate which has been artificial heated shall not be used). 2. The aggregates thoroughly washed so, the finer particles or the dust is remove from its surface. 3.
Jun 01, 2020· To measure the specific gravity of the coarse and fine aggregates used, the process started by weighing a sample of 4500 g from the used aggregates in accordance with ASTM C 127 through a 4.75-mm sieve. This procedure was meant to determine the coarse aggregates volume and retained sample on the sieve used.
The specific gravity may be expressed as bulk specific gravity (OD), bulk specific gravity (SSD) (saturated-surface-dry), or apparent specific gravity. The bulk specific gravity (SSD) and absorption are based on aggregate after 24 h soaking in water. This test method is not intended to be used with lightweight aggregates.
OF TEST PROCEDURES FEBRUARY 2021. February 2021 TO: Materials Testing Manual Holders SUBJECT: Laboratory Manual of Test Procedures ... Aggregate Specific Gravity and Absorption of Coarse Aggregate Sieve Analysis of Fine and Coarse Aggregates Direct Shear Test …
Jul 26, 2021· Specific gravity and water absorption test are significant tests on aggregates. Perhaps aggregates are the fundamental and essential components of concrete and play a significant role in the design mix of concrete. More than 70 to 80 per cent of the volume of concrete is aggregate. Hence the water absorption and specific gravity test are essential and significant tests .
Feb 09, 2016· Also read: Specific Gravity & Water Absorption Test Procedure of Aggregates (8) Affinity for Binder. Stripping (separation) of the binder film from the aggregate through the action of water may make an aggregate material unsuitable for asphalt concrete mixtures. Such material is referred to as hydrophilic (water loving).
M sand or crush sand is used as partial replacement of fine aggregate in construction and the density of M or crush sand is 1750 kg/m 3, specific gravity and F. M. is found to be 2.73 and 4.66 respectively.
7.3 Repeatability - If the specific gravities of the two specimens are not within 0.011 of each other, the results should be discarded, a new specimen obtained, and the specific gravity of the material retested. 8. SUPPLEMENTAL PROCEDURES FOR MIXTURES CONTAINING POROUS AGGREGATE NOT COMPLETELY COATED METHOD A – DRY-BACK
The final specific gravity is calculated following the specific gravity of soil formulas in the test method, along with the density of water and temperature coefficient tables. The equations include corrections to factor in the specific gravity values for the fraction larger than the No.4 sieve size. We hope this guide to the ASTM D854/AASHTO T ...
Jan 11, 2017· The specific gravity of aggregates usually applied in construction of roads varies from about 2.5 to 3.0 with a standard of about 2.68. Although high specific gravity is normally taken as a signal of high strength and quality, it is not wise to determine the appropriateness of a example road aggregate exclusive of discovering the mechanical ...
density (specific gravity) of fly ash generally ranges between 1.9 and 2.8 and the color is generally gray or tan. ASTM C 618 (AASHTO M 295) Class F and Class C fly ashes are commonly used as pozzolanic admixtures for general purpose concrete (Fig. 3-4). Class F materials are generally low-calcium (less than 10% CaO) fly ashes with common.
SG-27 is best used for coarse aggregate and has a 2in (51mm) diameter neck with 5,000ml overall capacity. Scale is readable to 0.1 grams. SG-28 is a set of both flasks, packaged together. Features: Fast, dependable method for specific gravity/absorption values of fine and coarse aggregate
IS 2386(Part 3):1963 Methods of test for Aggregates for Concrete: Determination of Specific Gravity. Reaffirmed- Dec 2016 4. Procedure Procedure For Specific Gravity Determination For Aggregate Coarser Than 6.3mm 1.About 2 kg of aggregate sample is taken, washed to remove fines and then placed in the wire basket.
May 08, 2013· Objective For determination of specific gravity & water absorption of aggregates. Reference Standards IS : 2386 (Part 3) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Wire basket Oven (3000c) Container for filling water and suspending the basket An air tight container Balance[0-10 kg] […]
ASTM C88 : Test Method for Soundness of Aggregates by use of Sodium Sulfate or Magnesium Sulfate. ASTM C117 : Test Method for Materials Finer than 0.075mm (no.200) sieve in Mineral Aggregates by Washing. ASTM C131 :Test Method for Resistance to Degradation of Small-size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.
Feb 22, 2010· Recommended Values of Specific Gravity and Water Absorption for Aggregates. The specific gravity of aggregates normally used in road construction ranges from about 2.5 to 3.0 with an average of about 2.68. Water absorption shall not be more than 0.6 per unit by weight. Read more : Specific Gravity of Fine Aggregates.
Bulk specific gravity (SSD) 0.007 0.020 10.3 If the specific gravity and absorption values were Apparent specific gravity 0.007 0.020 Absorption B, % 0.088 0.25 determined without first drying the aggregate, as permitted in Multilaboratory Precision: 8.2, it shall be noted in the report.
Specific Gravity: The recycled aggregate batches resulted in a slightly lower bulk specific gravity than the natural aggregate. The range of the bulk specific gravity for recycled aggregate is (2.3 - 2.6) while the value for the natural aggregate is (2.6). Furthermore, the apparent specific gravity ranged from 2.6 to 2.7 for recycled
The bulk specific gravity of the fine aggregate is used to determine the uncompacted void content, a measure of fine aggregate angularity in the Superpave mix design system. Absorption values are used to screen out aggregates that are highly porous and could
test. As for specific gravities (effective and bulk), aggregates show some variation, although not large, except for the ninth source which possesses a somewhat lower bulk specific gravity than others. This means it is ofhigher voids and consequently weaker aggregates. This confirms the above statement about the ninth source of being a lower ...
Oct 02, 2015· Department of Civil Technology Written By: Ahmed Zakaria 21 Specific Gravity &Percentage Absorption Aggregates To calculate specific gravity of aggregate follow the below procedure: I. Take a sample of aggregate 3/4 & 3/8 separately from the same stock pile (which we have used above in grading and blend) after proper quartering. II.
can be estimated indirectly based on the effective specific gravity of aggregate mixtures, and specific gravity of asphalt. In the latter case exact determination of percentage air voids, and optimum asphalt content values is pivotal in estimating the true value of G mm.
2.1 Object-i This test covers the procedures for determining the specific gravity, apparent specific gravity and water absorption of aggregates. Nor~ 1 -Threl main methods are specified for use according to whc&r he &e of the aggregate is large than 10 mm ( Method I ) between 40 mm
Aggregate Blending, Absorption & Specific Gravity 20 Fine Aggregate Specific Gravity Calculations - Example Problem Given A = mass oven dry =489.3 B = mass of pycnometer filled with water = 666.5 C = mass pycnometer, SSD aggregate and water = 982.3 S = mass SSD aggregate = 500.1
Specific gravity of combined aggregate T-84 Bulk specific gravity over dry T-85 2.540 Apparent specific gravity 2.681 Absorption ( % ) 2.314 Specific gravity of filler material C-854 2.754 Crushed aggregate ( % ) Particles passing No. 4 retained on No. 8 MOC" 94 Min 85 Particles retained on No. 4 MOC" 97 Min 90 Thin and elongated
Jul 24, 2017· Procedure. Take at least 25g of soil which has been passed through sieve#4 and place it in an oven at fixed temperature of 105-110 °C for 24 hours to dry it completely. Clean and dry the pycnometer thoroughly and find its mass (M1). Find the mass (M2) of pycnometer by placing dried soil in it. Add sufficient quantity of water to fill the ...
Jun 19, 2016· To Determine Specific Gravity of Coarse Aggregate – Concrete Practical. Coarse aggregates are particles greater than 4.75mm, but generally range between 9.5mm to 37.5mm in diameter. They can either be from Primary, Secondary or Recycled sources. Primary, or '', aggregates are either Land- or Marine-Won.