Specific Gravity Of Dry Aggregate

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 ( …

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1 SPECIFIC GRAVITY OF COARSE AGGREGATE AASHTO T 85 GLOSSARY Absorption: The increase in weight due to water contained in the pores of the material. Bulk Specific Gravity (also known as Bulk Dry Specific Gravity): The ratio of the weight in air of a unit volume of aggregate at a stated temperature to the weight in air of an equal volume

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aggregate. The specific gravity may be expressed as bulk oven dry (O.D.) specific gravity, bulk saturated surface dry (SSD) specific gravity, or apparent specific gravity. 1.2 The specific gravity and absorption of fine aggregate is normally determined on pass No. 4 material.

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The specific gravity of soil grain is the mass ratio of the volume of dry soil in the pressure of air to the mass of the water of equal volume. Water is taken to be reference with a specific gravity of 1g/cm^3. The specific gravity of soil sample ...

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displaced by the aggregate in a saturated, surface-dry condition. 2.2 Bulk Specific Gravity—Bulk specific gravity is the ratio of the oven-dry weight of the aggregate to the bulk volume of the aggregate particles. 3. APPARATUS 3.1 Balance, Class G2 in accordance …

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Specific gravity of certain materials as per concrete hand book CA-1 Bombay may be assumed as shown in Table 4.9. Method of Determination of Specific Gravity of Aggregate: IS-2386-Part-III-1963 describes various procedures to find out the specific gravity of aggregates …

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Apr 09, 2017· Objective: For assessment of the specific gravity of specified specimen of fine and coarse aggregates. Specific gravity of coarse aggregate Apparatus An equilibrium or scale of volume of minimum 3 kg, decipherable and precise to 0.5 g and it has to be of such shape and kind that it allows the basket holding the specimen […]

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Specific gravity test of aggregates is done to measure the strength or quality of the material while water absorption test determines the water holding capacity of the coarse and fine aggregates. Specific Gravity is the ratio of the weight of a given volume of aggregate to the weight of an ...

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specific gravity of material x unit weight of water For example, the specific gravity of a dry coarse aggregate (Gs) is 2.65. The unit weight of water is 62.4-lb/cu ft. The absolute volume of a 90-lb sample of the aggregate is: Absolute Volume = 90 lb / (2.65 x 62.4 lb/cu ft) = 0.544 cu ft.

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EXPERIMENT NO. 3 & 4 SPECIFIC GRAVITY (RELATIVE DENSITY) AND WATER ABSORPTION TEST FOR AGGREGATES. RELATED THEORY Water Absorption. Specific Gravity. Specific Gravity is defined as ratio of weight of solid to the weight of an equal volume of gas free distilled water (no dissolved air/impurities) at a stated temperature.

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Aggregate Blending, Absorption & Specific Gravity 15 Fine Aggregate Specific Gravity • ASTM C128 – Dry aggregate – Soak in water for 24 hours – Spread out and dry to SSD – Add 500 g of SSD aggregate to pycnometer of known volume • Pre-filled with some water – Add more water and agitate until air bubbles have been removed

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Saturated Surface Dry (SSD) – condition of an aggregate particle when the permeable voids are filled with water, but no water is present on exposed surfaces. Specific Gravity – the ratio of the mass, in air, of a volume of a material to the mass of the same volume of gas-free distilledwater at a stated temperature. Apparent Specific Gravity (G

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Apr 24, 2019· Specific gravity of coarse aggregate is required to find out the aggregate density compared with water. We described the procedure of specific gravity test of coarse aggregate as per IS Code with limits, formula, and calculations.

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SSDetect™ Bulk Specific Gravity and Absorption of Fine Aggregates Test System— H-3384.3F The SSDetect system is a two-part, automated system that determines: Bulk Specific Gravity (dry), Bulk Specific Gravity (SSD), Apparent Specific Gravity, and Absorption of the fine aggregate, all in about one hour.

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Apr 24, 2019· Specific gravity of fine aggregate procedure by pycnometer is required to find out the aggregate density compared with water. We described the procedure of specific gravity test of fine aggregate as per IS Code with Limits and Calculations by pycnometer.

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1 SPECIFIC GRAVITY AND ABSORPTION OF FINE AGGREGATES AASHTO T 84 GLOSSARY Absorption: The increase in mass due to water in the pores of the material. Bulk Specific Gravity (also known as Bulk Dry Specific Gravity): The ratio of the weight in air of a unit volume of aggregate at a stated temperature to the weight in air of an equal volume

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Bulk specific gravity of aggregates can be defined as the ratio of oven-dry weight of the aggregate to the bulk volume of the aggregate particles. It is the ratio of mass of the substance at the stated temperature to the mass of the volume of the distilled water at …

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The specific gravity of aggregates indirectly measures its density; hence it is the most essential parameter of strength or quality of the aggregates. Higher the specific gravity, higher is the strength. It is due to higher specific gravity there would be higher compressive strength of aggregates and hence it passes on to the concrete. 02.

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Specific Gravity. The ratio of weight of oven dried aggregates maintained for 24 hours at a temperature of 100 to 1100C, to the weight of equal volume of water displaced by saturated dry surface aggregate is known as specific gravity of aggregates. Specific gravities are primarily of two types. Apparent specific gravity; Bulk specific gravity

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Specific Gravity (Relative Density) Calculations The following values are recorded as part of ASTM C127: A = mass of oven‐dry test sample in air, g B = of saturated‐surface‐dry test sample in air, g C = apparent mass of saturated test sample in water, g

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Specific Gravity The specific gravity (relative density) of an aggregate is the ratio of its weight to the weight of an equal volume of water. Most natural aggregates have specific gravities between 2.4 and 3.0 as shown in the next slide. Concrete Technology 26 Specific Gravity of Rock Groups •Rock Group •Average Specific •Gravity

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1.1 This test method covers the determination of relative density (specific gravity) and the absorption of coarse aggregates. The relative density (specific gravity), a dimensionless quantity, is expressed as oven-dry (OD), saturated-surface-dry (SSD), or as apparent relative density (apparent specific gravity).

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2.2 Saturated surface-dry—the condition of the aggregate when all permeable pores of each particle are completely saturated with water and its surface has no free moisture. 2.3 Saturated surface-dry specific gravity—the ratio of the mass of SSD aggregate to the mass of an equal volume of water.

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For aggregates, density is determined by multiplying the relative density (specific gravity) of the aggregate times the density of water. Bulk Density of Aggregate [1] The bulk density or unit weight of an aggregate is the mass or weight of the aggregate that required …

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Oct 01, 2016· Specific Gravity. The ratio of weight of oven dried aggregates maintained for 24 hours at a temperature of 100 to 110 0 C, to the weight of equal volume of water displaced by saturated dry surface aggregate is known as specific gravity of aggregates. Specific gravities are primarily of two types. Apparent specific gravity; Bulk specific gravity

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The percent of water necessary to add to the aggregate to obtain SSD is called as water absorption. Use our online Specific gravity and water absorption test calculator to do water absorption of aggregates calculation based on the weight of dry piece soaked in fluid and weight of dry piece in the fluid.

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specific gravity, bulk saturated surface dry (SSD) specific gravity, or apparent specific gravity. The bulk (SSD) specific gravity and absorption are based on aggregate after 15 to 19 hours soaking in water. This method is not intended to be used with lightweight aggregate. 1.2 The specific gravity and absorption of coarse aggregate is normally ...

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Procedure for the determination of specific gravity of fine aggregate. Clean the pycnometer, dry it, Find the weight of the pycnometer. Take about 200gm of coarse aggregate sample in the pycnometer.Weight the pycnometer, Note the weight W2; Fill the remaining …

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