SPECIFIC GRAVITY AND ABSORPTION . OF FINE AGGREGATE A Modification of AASHTO Designation T 84 1. SCOPE . 1.1 This method covers the determination of specific gravity and absorption of fine aggregate. The specific gravity may be expressed as bulk oven specific dry OD gravity, bulk saturated surface dry SSD specific gravity, or apparent

Learn MoreFor determination of specific gravity & water absorption of aggregates. The sample to be tested is separated from the bulk by quartering or by using sample divider. Procedure . About 2kg of the aggregate sample is washed thoroughly to remove fines, drained and then placed in the wire basket and immersed in distilled water at a temperature between 22 to 32 0 C with a cover of at least 50 mm

Learn MoreTo determine the specific gravity of bitumen, asphalt, coal tar, road tar, and other bituminous products. Here, the specific gravity of bitumen sample is determined by Pyknometer method. Important Terms related to Specific Gravity Test of Bitumen: Specific gravity: It is the ratio of the mass of the substance in consideration to the mass of an equal volume of water at a specified temperature

Learn MoreThe specific gravity may be expressed as bulk specific gravity (OD), bulk specific gravity (SSD) (saturated-surface-dry), or apparent specific gravity. scope: This method covers the determination of bulk and apparent specific gravity, 23/23°C (73.4/73.4°F), and absorption of fine aggregate. The British Standard test for the apparent specific gravity and absorption of coarse aggregate (B.S

Learn MoreIS Code of Bulk Density and Voids in Aggregate:-IS: 2386 (Part 3)-1963, Methods for specific gravity, density, voids, absorption and bulking of aggregates. Apparatus Required for Determination of Bulk Density and Voids in Aggregate:-Balance: A balance sensitive to 0.5 % of the weight of the given sample.

Learn Moreusing the bulk dry specific gravity of the fine aggregate. Two runs are made on each sample and the results are averaged. 4.1.1. For a graded sample (Method A or Method C), the percent void content is determined directly, and the average value from two runs is reported. 4.1.2. For the individual size fractions (Method B), the mean percent void content is calculated using the results from tests

Learn MoreAggregate specific gravity is needed to determine weight-to-volume relationships and to calculate various volume-related quantities such as voids in mineral aggregate (VMA), and voids filled by asphalt (VFA). Absorption can be used as an indicator of aggregate durability as well as the volume of asphalt binder it is likely to absorb. * Theory :- * Specific gravity is a measure of a material's

Learn MoreThe procedures for determining the bulk specific gravity of the fine aggregate in a SSD condition and the percentage of absorption are as follows: 1. Dry a representative sample of the fine aggregate (about 1,000 grams) to a constant weight at 110°C.

Learn MoreAggregate: Measure the Bulk (Dry) Specific Gravity of the coarse and fine aggregate fractions (KT-6, Procedure I & II). 2.1.2. Reclaimed Material: KT-6, as indicated above can be used on extracted aggregate if a sufficient quantity is available. If sufficient extracted aggregate is not available, conduct KT-39 on the reclaimed material. Obtain the specific gravity of the extracted

Learn More1.1 This test method covers the determination of specific gravity and absorption of coarse aggregate. The specific gravity may be expressed as bulk oven dry (OD) 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

Learn MoreBulk Specific Gravity Of Coarse Aggregate Formula. classification of aggregates,lightweight aggregates: as mentioned in the body of this paper, lightweight concrete contains aggregate that is natural or synthetic which weighs less than 1100 kg/m 3.the lightweight is due to the cellular or high internal porous microstructure, which gives this type of aggregate a low bulk specific gravity

Learn MoreDeterminethe bulk and apparent specific gravity for each coarse and fine aggregate fraction inaccordance with T 85 and T 84, respectively,and determine the specific gravity of the mineralfiller in accordance with T 100. WSDOT requires specific gravity determinations to be reported to an accuracy of 0.001. WSDOT Materials Manual M

Learn MoreRead bulk specific gravity formula on the Engrave It Online Blog, your place for tips on how to buy personalised engraved gifts online and latest offers. My Account. Worldwide Delivery | Free UK Shipping. 0. Your basket is empty. Generic selectors. Exact matches only. Exact matches only. Search in title. Search in title . Search in content. Search in content. Search in excerpt. Hidden. Hidden

Learn MoreSamples of coarse aggregate from a stockpile are brought to the laboratory for determination of specific gravities. The following weights are found: Mass of moist aggregate sample as brought to the laboratory: 5,298 grams Mass of oven dried aggregate: 5,216 g Mass of aggregates submerged in water: 3,295 g Mass of SSD (Saturated Surface Dry) Aggregate: 5,227 g Find a. The aggregate bulk dry

Learn Morethe oven-dry specific gravity may be directly computed. This representative coarse lightweight aggregate with a measured dry loose bulk unit weight of 714 kg/m3 ( 44.6 pcf) and com puted oven-dry specific gravity of 1.38 results in the aggregate particle occupying 52 percent of the total bulk volume, with

Learn MoreIf the bulk dry specific gravity of the aggregate (Gsb) is known, the percentage of voids between aggregate particles can be determined as : x 100 = x 100 Where: Vs = volume of aggregate s = unit weight of aggregate b = bulk unit weight of aggregate w = unit weight of water 1) Coarse Agg. Aggs are oven dried at 1055C overnight & the weight is measured as (A)oven dry weight Aggs are soaked

Learn MoreThe 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. The pores in lightweight aggregates may or may not become essentially

Learn MoreThe bulk specific gravity test is used to determine the specific gravity of a compacted HMA sample by determining the ratio of its weight to the weight of an equal volume of water. The bulk specific gravity test measures a HMA sample's weight under three different conditions (Figure 1): Dry (no water in sample).

Learn Moreaggregate. The bulk specific gravity, saturated surface dry test is the method used for the determination of the weight per ft³ of riprap. 2. Apparatus: 2.1 Scale or balance having the capacity to weigh any sample which may be

Learn MoreSpecific Gravity is defined as the ratio of Weight of Aggregate to the Weight of equal Volume of water. The specific gravity of an aggregate is considered to be a measure of strength or quality of the material. Aggregates having low specific gravity are generally weaker than those with high specific gravity.

Learn MoreThe bulk specific gravity test is used to determine the specific gravity of a compacted HMA sample by determining the ratio of its weight to the weight of an equal volume of water. The bulk specific gravity test measures a HMA sample's weight under three different conditions (Figure 1): Dry (no water in sample).

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