Jun 19, 2014 Wash the coarse aggregate through 4.75 mm IS sieve and dry the material retained on the sieve in an oven maintained at a temp of 105 to 110 0 C, till it attains a constant mass. Sieve the dried sample to separate it into different size fractions using sieves

ASTM C88 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate ASTM E100 Standard Specification for ASTM Hydrometers CSA A23.2-9A Soundness of Aggregate by Use of Magnesium Sulphate 3. APPARATUS 3.1 SULPHATE TANK: A suitably constructed three-compartment tank, one compartment for

Proportional calipers determine percentages of flat and elongated particles in coarse aggregate samples. The British Standard system measures flakiness and elongation with separate thickness and length gauges. Sand Equivalent Test indicates the amount of clay-like fines in aggregates and granular soils. Testing sets are complete, ready for lab or field use

Test Method for Soundness of Aggregates by Freezing and Thawing of Concrete Specimens 1. Scope 1.1 This test method covers the procedures to be followed in testing aggregate combinations to determine their influence on the resistance to rapid freezing and

There are various tests are carried out to check the quality of the aggregate like abrasion test, impact test, soundness test, flakiness index test, etc. The soundness test on aggregate is carried out to learn the resistance of aggregates to weathering actions like thawing, freezing, alternate wetting and drying in normal conditions and in salt water, variation in temperature

SOUNDNESS OF AGGREGATE USING SODIUM SULFATE OR MAGNESIUM SULFATE TXDOT DESIGNATION: TEX-411-A CONSTRUCTION DIVISION 2 – 11 EFFECTIVE DATE: OCTOBER 2004 Larger sizes by 12.5 mm (1/2 in.) spread. 2.2 Tanks, with a volume greater than five times the solid volume of the immersed samples in their containers. 2.3 Perforated containers, for immersion of

The soundness test determines an aggregate’s resistance to disintegration by weathering and, in particular, freeze-thaw cycles. Description The most common soundness test involves repeatedly submerging an aggregate sample in a saturated solution of sodium or magnesium sulfate

4.1 This test method provides a procedure for making a preliminary estimate of the soundness of aggregates for use in concrete and other purposes. The values obtained may be compared with specifications, for example Specification C33/C33M, that are designed to indicate the suitability of aggregate proposed for use.Since the precision of this test method is poor (Section 13), it may not be

Test Method for Soundness of Aggregates by Freezing and Thawing of Concrete Specimens 1. Scope 1.1 This test method covers the procedures to be followed in testing aggregate combinations to determine their influence on the resistance to rapid freezing and

After a specified number of submerging and drying repetitions, the aggregate is sieved to determine the percent loss of material. Figure 1: Aggregate before (top) & after (bottom) the soundness test. The formation of salt crystals is supposed to mimic the formation of ice crystals in the field and could therefore be used as a surrogate to

Precision 13.1 aggregates; magnesium sulfate; sodium sulfate; sound- ness; weathering 12.1 Precision—For coarse aggregate with weighted aver- age sulfate soundness losses in the ranges of 6 to 16 % for sodium and 9 to 20 % for magnesium, the precision indexes are as follows: The American Society for Testing and Materials takes no position

SOUNDNESS OF AGGREGATE USING SODIUM SULFATE OR MAGNESIUM SULFATE TXDOT DESIGNATION: TEX-411-A CONSTRUCTION DIVISION 2 – 11 EFFECTIVE DATE: OCTOBER 2004 Larger sizes by 12.5 mm (1/2 in.) spread. 2.2 Tanks, with a volume greater than five times the solid volume of the immersed samples in their containers. 2.3 Perforated containers, for immersion of

Soundness of Aggregates by Freezing and Thawing. Modifies. AASHTO Designaiton: T 1039-1 I. SCOPE. 1.1 This method describes procedures tobe followed in testing aggregates to determine their resistance to disintegration by freezing and thawing. It furnishes informationhelpful in ... 4.2 Coarse Aggregate - Test shall consist of representative

Dec 19, 2019 Next, place the aggregates in the oven for 24 hours and measure the weight of oven-dried aggregates as C. Now calculate, Specific gravity= C/(B-A) and water absorption = 100 (B-C)/C according to this formula. To know more read, Specific Gravity

Jul 10, 2014 Jul 10, 2014 Soundness Test of Aggregates This test is used to determine the resistance of aggregates to disintegrate by saturated solutions of sodium sulphate or magnesium sulphate. This Test is easy but time consuming. Introduction: 2. Objective: To determine the weathering action of aggregates. 3