### Specific Gravity of Aggregate

Specific 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.

More### What Is Grading Of Aggregates? And Its Limits [Civil Planets]

40mm aggregates are used in PCC & 20mm aggregates are RCC. The smaller size of aggregates gives a larger surface area which provides good bonding to the material and increases the strength of the concrete. It helps to find the flaky & irregular shape aggregates which are not suitable for concrete that decreases the strength of the concrete.

More### SPECIFIC GRAVITY OF AGGREGATE

Table 2 : Observation Table for Specific gravity of Aggregate finer than 6.3 mm 6. General Remarks 1.The specific gravity of aggregates normally used in construction ranges from about 2.5 to 3.0 with an average value of about 2.68. 2.Specific gravity of aggregates is considered as an indication of strength. Material having higher Specific

More### Specific Gravity of Coarse Aggregates: Its Importance

The specific gravity of aggregates normally ranges from about 2.5 to 3.0. According to ‘A. M. Neville’ (Author of the Properties of Concrete), the majority of natural aggregates have a specific gravity of between 2.6 and 2.7. However high specific gravity is considered as an indication of high strength.

More### AGGREGATE BLENDING, ABSORPTION, & SPECIFIC GRAVITY

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

More### SPECIFIC GRAVITY OF AGGREGATE

Table 2 : Observation Table for Specific gravity of Aggregate finer than 6.3 mm 6. General Remarks 1.The specific gravity of aggregates normally used in construction ranges from about 2.5 to 3.0 with an average value of about 2.68. 2.Specific gravity of aggregates is considered as an indication of strength. Material having higher Specific

More### Coarse Aggregate Specific Gravity Pavement Interactive

Aggregate 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.

More### Aggregates: Physical Properties and Mechanical Properties

Physical Properties of Aggregate: Specific Gravity Indian Standard Specification IS : 2386 (Part III) of 1963 gives various procedures to find out the specific gravity of different sizes of aggregates. A Weight of empty basket in water A Weight of aggregate and basket in water C Weight of ovendried aggregate in air.

More### Properties of Aggregates and its Values for use in

Contents:Properties of Aggregates and its Values for use in Construction1. Aggregates: Bulk Density, Specific Gravity and Voids2. Aggregates: Limiting Values of Mechanical Properties3. Approximate Water Absorption of Aggregates, by Weight4. Limits of Deleterious Materials (Percentage by Weight, Maximum)5. Bulking of Sands for Various Moisture Contents6. Surface Water Carried by Aggregates

More### AGGREGATE BLENDING, ABSORPTION, & SPECIFIC GRAVITY

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

More### Specific Gravity and Water Absorption Tests on Aggregates

Formulas: (1) Specific gravity = W 3 / (W 3 – (W 1 – W 2)) (2) Apparent specific gravity = W 4 / (W 4 – (W 1 1 – W 2)) (3) Water Absorption = ((W 3 – W 4) / W 4) X 100** The size of the aggregate and whether it has been artificially heated should be indicated. ** Though high specific gravity is considered as an indication of high strength, it is not possible to judge the

More### SPECIFIC GRAVITY & WATER ABSORPTION OF AGGREGATE

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] []

More### Aggregates of Concrete SlideShare

Mar 02, 2017· Aggregate Classification : Specific GravityAggregate Classification : Specific Gravity • Heavyweight AggregateHeavyweight Aggregate • Barite, Limonite, Magnetite, Hematite, IronBarite, Limonite, Magnetite, Hematite, Iron • Produce high-density concrete up to 6400 kg/mProduce high-density concrete up to 6400 kg/m33 • Used for Radiation

More### ASTM C127 01 Standard Test Method for Density, Relative

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.. ASTM Standards. C29/C29M Test Method for Bulk Density (Unit Weight) and Voids in Aggregate. C125 Terminology Relating to Concrete and Concrete Aggregates. C128 Test Method for Density, Relative Density (Specific Gravity), and

More### QUALITY ASSURANCE for AGGREGATES Indian Railway

Size of aggregates: The nominal maximum size of coarse aggregate should be as large as possible within the limits specified, but in no case greater than 1/4th of the min. thickness of the member. For most works, 20 mm aggregate is suitable. 40 mm and 10 mm size should be used for work specified. Plums above 160 mm should be

More### SPECIFIC GRAVITY AND ABSORPTION OF FINE

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

More### 06 Chapter 2

Substance Specific Gravity Density (lb/ft3) Water 1.0 62.4 Binder 1.02 63.7 Limestone 2.7 165 to 170 Lead 11.0 680 to 690 The density and the specific gravity of an aggregate particle is dependent upon the density and specific gravity of the minerals making up the particle and upon the porosity of the particle. These may be defined as

More### IS 383 (1970): Specification for Coarse and Fine

2.1.2 Crushed Stone Sand Fine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sand line aggregate produced by crushing natural gravel. . 2.2 Coarse Aggregate -- Aggregate most of which is retained on 4*75-mm IS Sieve and containing only so much finer material as is permitted for

More### M25 Grade Concrete Mix Design IS10262 Recent Revision

Specific Gravity of Cement: 3.15: Test – IS: 2720 Maximum water content for 20mm aggregate to get up to 50mm slump is given in Table 2 of IS10262. Table 2 Maximum Water Content per cubic meter – IS10262. For 20mm aggregate to get 50mm slump :-Maximum Water Content = 186 L:

More### AGGREGATE BLENDING, ABSORPTION, & SPECIFIC GRAVITY

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

More### QUALITY ASSURANCE for AGGREGATES Indian Railway

Size of aggregates: The nominal maximum size of coarse aggregate should be as large as possible within the limits specified, but in no case greater than 1/4th of the min. thickness of the member. For most works, 20 mm aggregate is suitable. 40 mm and 10 mm size should be used for work specified. Plums above 160 mm should be

More### HOW TO DECIDE MAXIMUM SIZE OF COARSE AGGREGATE TO

Mar 23, 2015· On the other hand in smaller size aggregates the surface area is increased which increases w/c ratio and lower strength is achieved. In general for strength upto 200 kg/cm 2 aggregates upto 40 mm may be used and for strength above 300 kg/cm 2 aggregate upto 20 mm may be used. Conditions That Decide Maximum Size of Coarse Aggregate to be Used

More### What are the desirable properties of aggregate Explain any

Specific gravity: It is ratio of dry weight of aggregate to the weight of equal volume of water. The specific gravity of aggregate is determined along with the water absorption as specified in IS 2386 part lll 1963. Bulk density: The ratio of net weight of aggregate to the volume of aggregate given bulk density.

More### Aggregates of Concrete SlideShare

Mar 02, 2017· Aggregate Classification : Specific GravityAggregate Classification : Specific Gravity • Heavyweight AggregateHeavyweight Aggregate • Barite, Limonite, Magnetite, Hematite, IronBarite, Limonite, Magnetite, Hematite, Iron • Produce high-density concrete up to 6400 kg/mProduce high-density concrete up to 6400 kg/m33 • Used for Radiation

More### Impact of use of steel slag as coarse aggregate and

Mar 20, 2018· It was due to the lower bulk density and specific gravity of steel slag aggregates as compared to basalt aggregates as shown in Fig. 11. It was reduced by 2.7%, 3.2%, 4.0%, 4.5%, and 8.5% for steel slag aggregate proportions of 15%, 25%, 50%, 75% and 100% respectively with wastewater as compared to control concrete.

More### 06 Chapter 2

Substance Specific Gravity Density (lb/ft3) Water 1.0 62.4 Binder 1.02 63.7 Limestone 2.7 165 to 170 Lead 11.0 680 to 690 The density and the specific gravity of an aggregate particle is dependent upon the density and specific gravity of the minerals making up the particle and upon the porosity of the particle. These may be defined as

More### Materials Testing Manual | ADOT

Combined Coarse and Fine Aggregate Specific Gravity and Absorption: AASHTO Standards. Designation Title; R 58: Dry Preparation of Disturbed Soil and Soil-Aggregate Samples for Test: R 76: Reducing Field Samples of Aggregate to Testing Size: T 19: Unit Weight and Voids in Aggregate: T 89: Determining the Liquid Limit of Soils: T 90: Determining

More### IS 383 (1970): Specification for Coarse and Fine

2.1.2 Crushed Stone Sand Fine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sand line aggregate produced by crushing natural gravel. . 2.2 Coarse Aggregate -- Aggregate most of which is retained on 4*75-mm IS Sieve and containing only so much finer material as is permitted for

More### IS 2386-3 (1963): Methods of test for aggregates for

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 (

More### (PDF) Reuse of Ceramic Waste as Aggregate in Concrete

The crushed aggregates used were 20mm nominal maximum size and are tested as per Indian standard sand results are within Table -2.3: Physical properties of coarse aggregates the permissible limit. Ceramic tile Aggregate: CTA are crushed uniformly to Obtained Values SL No. Particulars about 20mm size manually using hammer and sieved through 20mm

More### 2 Concrete Materials in

bulk specific gravity (SSD) of each aggregate component. The bulk specific gravity determined on a dry basis is a common test conducted by the aggregate industry. However, using the absorption value of the aggregate, the bulk specific gravity (SSD) may be calculated in accordance with AASHTO T 84 and AASHTO T 85 as follows: Ss = (1 + A/100) S d

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