How do you calculate sand equivalent?
1. Calculate the sand equivalent to the nearest 0.1 % as follows: SE=(sand reading/clay reading) X 100 where: SE = sand equivalent. 2. If the calculated sand equivalent is not a whole number, report it as the next higher whole number.
What is a sand equivalent test used for?
The sand equivalent test is used to limit the presence of clay material in the aggregate. The sand equivalent test (AASHTO T176; ASTM D2419) is a rapid field test to show the relative proportions of fine dust or clay-like materials in fine aggregate (or granular soils).
How do you make a sand equivalent solution?
Stock Solution used for performing the Sand Equivalent Test. It is a concentrated calcium chloride solution that is diluted with distilled water to create the working solution for conducting Sand Equivalent Tests. To create the working solution, mix 85ml of solution for every gallon of distilled water.
Is code for sand equivalent test?
IS 2720-37: Methods of test for soils, Part 37: Determination of sand equivalent values of soils and fine aggregates.
What is a good sand equivalent value?
lower sand equivalent values indicate higher pastic fines and dust content. Minimum specified sand equivalent values for fine aggregate in HMA range from 26 to 60 with the most common being 45.
What is the fineness modulus of sand?
The Fineness Modulus (FM) of fine aggregates (sand) is an empirical figure obtained by adding the total percentage of the sample of a sand retained on each of a specified series of sieves, and dividing the sum by 100.
What is the normal range for sand equivalent value?
Typical Values Typical sand equivalent values range from less than 30 to more than 90.
What is soundness test aggregate?
Soundness is the percentage loss of material from an aggregate blend during the sodium or magnesium sulfate soundness test. This test, which is specified in ASTM C88 and AASHTO T104, estimates the resistance of aggregate to in-service weathering. It can be performed on both coarse and fine aggregate.
How is FM of sand calculated?
What is the FM of cement?
The Fineness modulus of cement is an empirical figure obtained by adding the total percentage of the sample of an aggregate retained on each of a specified series of sieves, and dividing the sum by 100.
What is flakiness and elongation?
Flakiness Index is the percentage by weight of particles in it, whose least dimension (i.e. thickness) is less than three-fifths of its mean dimension. Elongation Index is the percentage by weight of particles in it, whose largest dimension (i.e. length) is greater than one and four-fifths times its mean dimension.
What is FM value?
The Fineness Modulus (FM) is an empirical figure obtained by adding the total percentage of the sample of an aggregate retained on each of a specified series of sieves, and dividing the sum by 100. Sieves sizes are: 150-μm (No. 100), 300-μm (No.
What is FM sand?
What is the FM of sand? The Fineness Modulus of Sand is an index number that indicates the mean size of the sand particles. It is calculated by performing the sieve analysis test with standard IS sieves. The fineness modulus of sand ranges from 2.2 to 3.2.
What is angularity number of aggregate?
Angularity number: Angularity number of an aggregate is the amount (to the higher whole number) by which the percentage of voids in it after compacting in a prescribed manner exceeds 33. Where “33” is the percentage of the volume of voids in a perfectly rounded aggregate.
What is FM value of fine aggregate?
Which aggregate is used in RCC?
nikeetasharma. Generally the most appropriate size of aggregate used in RCC structure is 20mm. It gives more strength to the structure.
Where is Route 217 in Connecticut?
Route 217 is a state highway in central Connecticut, running from Route 66 in Middlefield to Route 372 in Cromwell. The route serves the Westfield section of the city of Middletown .
What is the California test 217 June 2011-6 (E)?
California Test 217 June 2011 – 6 – (e) Once the shaker is in motion, maintain a smooth oscillating motion by gently applying pressure to the right hand strap during the thrust portion of each cycle.
What is test 227 California test 227?
California Test 227 – Evaluating Cleanness of Coarse Aggregate C. APPARATUS 1. Sand Equivalent Test Apparatus: a graduated plastic cylinder, rubber stopper, irrigator tube, weighted foot assembly, and siphon assembly, all conforming to the specifications and dimensions shown in Figure 1.
What is the difference between ASTM C173 and CTM 539?
CTM 539 should be used instead. A Contract Change Order may be needed to implement this change for an on-going contract. Note: ASTM C173, which was previously specified for this test, has been superseded and should not be used for routine quality assurance testing. CTM 543 should be used instead.