gravity specificf crushed aggregate irc

  • Mix Design For Concrete Roads As Per IRC

    3. Target average flexural strength for all A B and C mixes S = S Zq =4.5 1.96 x 0.40 = 5.3 N/mm 2 at 28 days age 4. For Mix A B and C free W/C ratio with crushed aggregate and required average flexural target strength of 5.3 N/mm 2 at 28 days from Fig. 1 Curve D found to be 0.42. This is lower than specified maximum W/C ratio value of 0.45 for OPC and 0.50 for PPC.

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  • Heavyweight Aggregates for Heavyweight Concrete Production

    Heavyweight aggregates as it can be seen from the name is an aggregate that posses relatively high density and it is fundamental in a situation that high density concrete is necessary. Generally aggregates with specific gravity of 2400 Kg/m3 and

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  • IRC 129 2019 CoverPublic.Resource

    It is suggested that a good starting point be 5.0 for mixes with aggregate specific gravities equal to or less than 2.75. If the bulk specific gravity of the aggregate exceeds 2.75 the bitumen content can be reduced slightly. The VMA of the mix must still meet the specified minimum value. 4.5 Specimen preparation and testing

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  • IRC 129 2019 CoverPublic.Resource

    Congress Specification IRC SP 53. 3.2 coarse aggregates The coarse aggregate shall consist of crushed rock retained on 4.75 mm sieve. It shall be of cubical shape clean hard durable and free from dust soft organic and other deleterious substances. The aggregate shall satisfy the physical requirements given in table 1.

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  • WHAT ARE THE PROPERTIES OF AGGREGATES FOR CONCRETE

    Oct 01 2016 · Specific gravity of major aggregates falls within the range of 2.6 to 2.9. Specific gravity values are also used while designing concrete mix. Also read Specific Gravity Water Absorption Test of Aggregates. 5. Bulk Density. It is defined as the weight of the aggregate required to fill a container of unit volume. It is generally expressed in

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  • METHOD OF TEST FOR SPECIFIC GRAVITY AND

    2. Bulk specific gravity (oven-dry basis). a. Use this procedure for bituminous mix aggregates aggregate base and cement treated base aggregate. b. Specific Gravity = A/(B −C) 3. Bulk specific gravity (saturated surface -dry basis). a. Use this procedure for portland cement concrete aggregates. b. Specific Gravity = B/(B −C) 4.

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  • PROPERTIES OF AGGREGATES FOR CONCRETECivil Engineering

    Low specific gravity Aggregates are generally weaker than those with high specific gravity. Low specific gravity generally indicates porous weak and absorptive aggregate. This property helps to the identification of good and suitable aggregates. Specific gravities of aggregate vary between 2.0 and 3.0. Specific gravities are primarily of two

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  • Scope Apparent Specific Gravity Aggregate

    crushed aggregate Total Coarse = mass of plus 4.75mm (No.4) aggregate Note To nearest 1 3. Asphalt Absorption Factor and Effective Asphalt Content Asphalt Absorption = 100∗( − ∗ )∗ where AC a = absorbed asphalt by weight of aggregate G a = specific gravity of asphalt G b = bulk specific gravity of aggregate G e

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  • Aggregate Mechanical Properties of Aggregate Concrete

    Usually the specific gravity of most aggregates varies between 2.6 and 2.8. 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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  • Coarse Aggregate AngularityPavement Interactive

    It takes a sample of coarse aggregate and drops it into a cylinder of measured volume (Figure 4 and Video 1). Base on the weight of the aggregate in the cylinder and a known aggregate specific gravity the volume of voids as a percentage of total volume can be calculated.

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  • Coarse Aggregate Specific GravityPavement Interactive

    AASHTO T 85 and ASTM C 127 Specific Gravity and Absorption of Coarse Aggregate Background. Specific gravity is a measure of a material s density (mass per unit volume) as compared to the density of water at 73.4°F (23°C).

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  • Heavyweight Aggregates for Heavyweight Concrete Production

    Heavyweight aggregates as it can be seen from the name is an aggregate that posses relatively high density and it is fundamental in a situation that high density concrete is necessary. Generally aggregates with specific gravity of 2400 Kg/m3 and

    Get Price
  • Coarse Aggregate Specific GravityPavement Interactive

    AASHTO T 85 and ASTM C 127 Specific Gravity and Absorption of Coarse Aggregate Background. Specific gravity is a measure of a material s density (mass per unit volume) as compared to the density of water at 73.4°F (23°C).

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  • Specific Gravity Of General Materials Table

    The specific gravity of all other materials are compared to water as a fraction heavier or fraction lighter density no matter how small or large the fraction is. For example ammonium nitrate has a specific gravity (sg) of 0.73 while dry ammonium sulphate has a sg of 1.13 (1130 kilograms/cubic meter).

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  • Measuring the Specific Gravity and Absorption of Steel

    This method is expected to better determine the specific gravity and absorption of these special aggregates. The steel slag and crushed concrete were tested at 30 minutes of vacuum saturation under 30mm Hg pressure. Statistical analysis indicated that this proposed method was viable in determining the specific gravities and absorption of these

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  • Irc dense graded bituminous mixes

    May 21 2015 · 3.2 Coarse Aggregate 3 2 V1 The coarse aggregate shall consist of crushed rock crushed gravel or other hard material retained on 2 36 mm sieve. size is the largest specified sieve size upon which any of the aggregate material is retained Corresponds to specific gravity of the Aggregate being 2 7. 73 or IRC SP 53 Aggregate impact

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  • 7 Lab Tests on Aggregates to Make Better Concrete for

    The specific gravity and water absorption of aggregates are important properties for designing concrete and bituminous mixes. Specific gravity of an aggregate is the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water. It is a quality measure and determines the strength of aggregate.

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  • Density of AggregateBulk and Relative DensityCivil

    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 to fill a

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  • Density of AggregateBulk and Relative DensityCivil

    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 to fill a

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  • 7 Lab Tests on Aggregates to Make Better Concrete for

    The specific gravity and water absorption of aggregates are important properties for designing concrete and bituminous mixes. Specific gravity of an aggregate is the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water. It is a quality measure and determines the strength of aggregate.

    Get Price
  • AGGREGATE BLENDING ABSORPTION SPECIFIC GRAVITY

    Aggregate Blending Absorption Specific Gravity 20 Fine Aggregate Specific Gravity CalculationsExample 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

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  • Coarse Aggregate Specific GravityPavement Interactive

    AASHTO T 85 and ASTM C 127 Specific Gravity and Absorption of Coarse Aggregate Background. Specific gravity is a measure of a material s density (mass per unit volume) as compared to the density of water at 73.4°F (23°C).

    Get Price
  • Measuring the Specific Gravity and Absorption of Steel

    This method is expected to better determine the specific gravity and absorption of these special aggregates. The steel slag and crushed concrete were tested at 30 minutes of vacuum saturation under 30mm Hg pressure. Statistical analysis indicated that this proposed method was viable in determining the specific gravities and absorption of these

    Get Price
  • Comparison of Physical Properties between Natural Sand and

    Specific gravity No. of trails Specific gravity of N sand Specific gravity of M sand trial 1 2.49 2.63 trail 2 2.45 2.61 average 2.47 2.622 Fig. 1 Comparison of Specific gravity Bulking of Fine Aggregate The test was conducted according to the procedure laid down in IS 2386(PART III) 1963. Bulking is an intrinsic property of natural sand.

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  • TESTS ON AGGREGATE Material Experts

    Feb 03 2017 · Then crushed aggregates are then sieved through 2.36 mm sieve and weight of passing material For Water bound macadam base courses the maximum permissible value defined by IRC is 40 percent. The specific gravity of aggregates normally used in road construction ranges from about 2.5 to 2.9. Water absorption values ranges from 0.1 to about

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  • 7 LAB TESTS ON AGGREGATE TO CHECK QUALITY FOR USE IN

    Sep 12 2015 · Then crushed aggregates are then sieved through 2.36 mm sieve and weight of passing material The specific gravity of aggregates normally used in road construction ranges from about 2.5 to 2.9. Water absorption values ranges from 0.1 to about 2.0 percent for aggregates normally used in road surfacing. IRC has specified maximum stripping

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  • AGGREGATE LAB TESTING TECHNICIAN WORKBOOK

    This method of test covers the procedures for determining the specific gravity and absorption of aggregates. Coarse aggregate (Procedure I) represents aggregate retained on the No. 4 (4.75 mm) sieve. Fine aggregate (Procedure II) is all aggregate passing the No. 4 (4.75 mm) and retained on the 00 (150 µm) sieve.

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  • Mix Design For Concrete Roads As Per IRC

    Specific Gravity 3.00 MIX-B With OPC-43- Grade conforming to IS . 7 days strength 40.5N/mm 2. Specific Gravity 3.15 MIX-C With OPC of Mix-B and Fly ash conforming to IS 3812 (Part-I)-2003 Specific Gravity 2.20 Note Requirements of all the three mixes are the same. Fine Aggregate Coarse Aggregate and Retarder Super plasticizer

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  • IS 383 (1970) Specification for Coarse and Fine

    Sep 25 1970 · 2.1.2 Crushed Stone SandFine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sandline 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

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  • Heavyweight Aggregates for Heavyweight Concrete Production

    Heavyweight aggregates as it can be seen from the name is an aggregate that posses relatively high density and it is fundamental in a situation that high density concrete is necessary. Generally aggregates with specific gravity of 2400 Kg/m3 and

    Get Price
  • Comparison of Physical Properties between Natural Sand and

    Specific gravity No. of trails Specific gravity of N sand Specific gravity of M sand trial 1 2.49 2.63 trail 2 2.45 2.61 average 2.47 2.622 Fig. 1 Comparison of Specific gravity Bulking of Fine Aggregate The test was conducted according to the procedure laid down in IS 2386(PART III) 1963. Bulking is an intrinsic property of natural sand.

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  • 5 Aggregate Specifications and Requirements

    TYPICAL VALUES FOR SPECIFIC GRAVITY Natural aggregates (both fine and coarse) 2.6 Air Cooled blast furnace slag coarse aggregate 2.3 ASTM D 5821 is used to determine the crushed particle content. Crushed gravel must comply with the requirements in Section 904.03. 5-9 Type AS Aggregates

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  • METHOD OF TEST FOR SPECIFIC GRAVITY AND

    2. Bulk specific gravity (oven-dry basis). a. Use this procedure for bituminous mix aggregates aggregate base and cement treated base aggregate. b. Specific Gravity = A/(B −C) 3. Bulk specific gravity (saturated surface -dry basis). a. Use this procedure for portland cement concrete aggregates. b. Specific Gravity = B/(B −C) 4.

    Get Price
  • Density of AggregateBulk and Relative DensityCivil

    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 to fill a

    Get Price
  • METHOD OF TEST FOR SPECIFIC GRAVITY AND ABSORPTION

    2. Bulk specific gravity (oven-dry basis). a. Use this procedure for bituminous mix aggregates aggregate base and cement treated base aggregate. b. Specific Gravity = A/(B −C) 3. Bulk specific gravity (saturated surface -dry basis). a. Use this procedure for portland cement concrete aggregates. b. Specific Gravity = B/(B −C) 4.

    Get Price
  • 7 Lab Tests on Aggregates to Make Better Concrete for

    The specific gravity and water absorption of aggregates are important properties for designing concrete and bituminous mixes. Specific gravity of an aggregate is the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water. It is a quality measure and determines the strength of aggregate.

    Get Price

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