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 the pycnometer Note the weight W2 Fill the remaining part of pycnometer with distilled water and weight W3
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Specific gravity of fine aggregate sand is the ratio of the weight of given volume of aggregates to the weight of equal volume of water The specific gravity of sands
Read More +Figure 1 Coarse Aggregate Gravity Apparatus A Bulk Specific Gravity Gsb 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 of gasfree distilled water at a stated temperature Figure 2
Read More +Procedure for Specific Gravity determination for Aggregate coarser than 63mm About 2 kg of aggregate sample is taken washed to remove fines and then placed in the wire basket The wire basket is then immersed in water which is at a temperature of 22 0 C to 32 0 C
Read More +May 08 2013 · Calculation Weight of saturated aggregate suspended in water with basket W 1 g Weight of basket suspended in water W 2 g Weight of saturated aggregate in water W 1 W 2 g W s g Weight of saturated surface dry aggregate in air W 4 g Weight of water equal to the volume of the aggregate W 3 W s g
Read More +Take at least 25g of soil which has been passed through sieve4 and place it in an oven at fixed temperature of 105110C0for 24hours 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 pycnometer up to the given mark and then
Read More +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
Read More +Specific gravity of fine aggregate sand is the ratio of the weight of given volume of aggregates to the weight of equal volume of water The specific gravity of
Read More +Specific Gravity and Absorption of Aggregate by Volumetric Immersion Method PhunqueTest ASTM June 2015 Meeting by Bryce Simons PE Eliminating the Guesswork –A New AbsorptionSpecific Gravity Test for Aggregate
Read More +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 • Prefilled with some water – Add more water and agitate until air bubbles have been removed
Read More +METHOD OF TEST FOR SPECIFIC GRAVITY AND ABSORPTION OF FINE AGGREGATE A SCOPE This test method describes the procedure used for determining bulk specific gravity saturated surfacedry basis and absorption after prescribed soaking of fine aggregate proposed for use in portland cement concrete B REFERENCES California Test 201 Soil and
Read More +Designation D85402 and to calculate the specific gravity of aggregates coarser than the No 4 475 mm sieve Standard Test Method for Specific Gravity and Absorption of Coarse Aggregate Designation C 12704 An average of the calculated specific gravity is used as the specific gravity of the entire sample
Read More +Determination of the Specific Gravity and Water Absorption of the Aggregates
Read More +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 Balance010 kg
Read More +In addition since the P200 portion of fine aggregate is not tested in the Modified AASHTO T 84 it may be assumed to have the same specific gravity as the other fine aggregate portion or it can be tested according to ASTM C110 or AASHTO T 133 with ethyl alcohol
Read More +The Fine Aggregate Test ASTM C128 and AASHTO T 84 is a comparison of sample masses in ovendry saturated surfacedry SSD and immersed conditions This test method offers alternate procedures to determine specific gravity Either a volumetric flask or simple pycnometer can be used for the gravimetric procedure For the volumetric procedure a special Le Chatelier flask is needed
Read More +This procedure covers the determination of specific gravity and absorption of coarse aggregate in accordance with AASHTO T 8510 Specific gravity may be expressed as bulk specific gravity Gsb bulk specific gravity saturated surface dry Gsb SSD or apparent specific gravity Gsa
Read More +52 Relative density is used to calculate the volume occupied by the aggregate in various mixtures containing aggregate including hydraulic cement concrete bituminous concrete and other mixtures that are proportioned or analyzed on an absolute volume basis Relative density specific gravity is also used in the computation of voids in aggregate in Test Method C29C29M and in Test Method C1252
Read More +The Manual of Aggregate Quality Test Procedures will be reviewed by the Aggregate Illinois Test Procedure 113 Lightweight Pieces in Aggregate 49 Illinois Test Procedure 161 Resistance of Concrete to Rapid Freezing and Thawing 53 Specific Gravity and Absorption of Fine Aggregates
Read More +Procedure For Specific Gravity Determination Of Aggregate Finer Than 63mm 1A clean dry pycnometer is taken and its empty weight is determined 1000g of clean sample is taken into the pycnometer and it is weighed at 270C is filled up in the pycnometer with aggregate sample to just immerse sample
Read More +As per the definition given in the ‘IS 2386 Part III – 1963’ Indian Standard Methods of Test for Aggregates for Concrete – Specific Gravity Density Voids Absorption and Bulking the specific gravity of coarse aggregates is the weight of the aggregates dried to constant weight in an oven at 100°C divided by its absolute volume including the natural voids within the aggregate particles
Read More +Fine Aggregate Specific Gravity Apparatus Procedure 1 Thoroughly mix the sample and reduce the sample to the required size in accordance with AASHTO T 248 Reducing Field samples of Aggregates to Test Size The sample size for this procedure is approximately 1000g of material passing the No 4 475 mm sieve 2
Read More +There are three methods of testing for the determination of the specific gravity of aggregates according to the size of the aggregates larger than 10 mm 40 mm and smaller than 10 mm For Samples larger than 10 mm 40 mm the below given test method is used and for samples smaller than 10 mm Pycnometer test is done
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