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The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggregate of aggregate crushing value 30 or higher, the result may be anomalous, and in such cases the ten percent fines value should be determined instead. Crushing value is strength …
Q205A – Ten Percent fines value – Dry; Q205B – Ten Percent fines value – Wet ... T205 – Aggregate Crushing Value (ACV) T215 – Wet/Dry strength variation; AGGREGATE DURABILITY. AS 1141.23 – Los Angeles Value; AS 1141.27 – Attrition Loss (Deval Wet/Dry) AGGREGATE SAMPLE. AS 1141.3.1 – Sampling aggregate;
Definition. The 10 per cent Fines Aggregate Crushing Value is the force in kN required to crush a sample of -13,2+9,5mm aggregate so that 10 per cent of the total test sample …
Calculate Aggregate Crushing Value. The ratio of the weight of fines formed to the total sample weight in each test shall be expressed as a percentage, the result being recorded to the first decimal place: Aggregate Crushing Value = W B W A × 100. Where, W A is weight of surface-dry sample; W B is weight of fraction passing the appropriate sieve
The 10 % fines aggregate crushing test (FACT) value is preferred when the aggregate crushing value (ACV) exceeds 30 %, and the result may then be unreliable. ... This part of SANS 3001 describes a method for determining the aggregate crushing value and the 10 % fines aggregate crushing test values in a dry or wet condition of a prepared ...
This paper reports an experimental investigation carried out to establish a mathematical relationship between aggregate crushing value (ACV) and ten percent fines aggregate crushing value (TFV) for some aggregates in Nigeria. Such a mathematical relationship, usually established through regression modelling on data …
Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load. ... If the aggregate crushing value is 30 or higher' the result may be anomalous and in such cases the ten percent fines value should be determined instead. Contents: Aggregate …
The ten percent fines value gives a measure of the resistance of an aggregate to crushing, that is, applicable to all aggregates. Reporting of results- The load required to produce 10% fines shall be reported to the nearest whole numbers for loads of 10 tonnes or more, the nearest 0.5 tonne for loads of less than 10 tonnes.
The aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top.
Ten percent fines value is a measure of the resistance of aggregate crushing subjected to loading and it is applicable to both weak and strong aggregate. Fine aggregates are …
The method is not suitable for testing aggregates with an aggregate crushing value higher than 30, and in such cases the method for ten per cent fines value described in BS 812-111 is applicable. A test specimen is compacted in a standardized manner into a steel cylinder fitted with a freely moving plunger.
The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggregate of aggregate crushing value 30 or higher, the result may be anomalous, and in such cases the ten percent fines value should be determined instead. Fig. 1: Balance Balance should be ...
The 10 per cent Fines Aggregate Crushing Value is the force in kN required to crush a sample of -13,2+9,5mm aggregate so that 10 per cent of the total test sample will pass a 2, 36 mm sieve. 2 APPARATUS As in SABS Method 842. 3 METHOD Follow SABS Method 842. 4 CALCULATIONS
Weak aggregates may break down during mixing, handling and compaction. Within British Standards, the mechanical properties of aggregate can be assessed from 10 per cent fines value or aggregate impact value. In the 10 per cent fines test, a load is applied to the 14–10 mm fraction of the aggregate.
The aggregate crushing value provides a subjective measure of the resistance of the aggregate crushing in the pressure of the progressively smeared compressive load. When the aggregate …
The total mass ( m2+m3 ) should not differ from the initial mass (m1) by more than 10 grams other wise discard the test and start a fresh test. Repeat the complete test procedure for another three or more samples with the same of the aggregates at different loads that gives a percentage fines value within the range of 7.50% to 12.50%. CALCULATIONS
This document gives the test method for determination of ten percent fines value ( TFV) of aggregates. This method gives a relative measure of the resistance of the aggregate …
This document gives the test method for determination of ten percent fines value (TFV) of aggregates. This method gives a relative measure of the resistance of the aggregate …
This document gives the determination of aggregate crushing value (ACV) of aggregates. This gives a relative measure of the resistance of the aggregate crushing under the gradually applied compressive load. The method is applicable to aggregates passing a 14,0 mm test sieve and retained on a 10,0 mm test sieve.
In situations, when the aggregate value is 30 or higher the result may be a mistake and in such cases, the "ten percent fines value" should be determined and used instead. Read More: Abrasion Test On Aggregate …
In each test, the weight of fines generated to total sample weight must be represented as a percentage, The "Aggregate crushing Value" is determined with the mean of two observations, rounded to the closest whole value. Aggregate Crushing Value = 100(W2/W1) percent. where,
Procedure The aggregate sample: The material for the standard test consists of aggregates sized 10.0 mm to 12.5 mm.The aggregates must be in a surface dry condition before testing. The aggregates may be dried by heating at 100 oC – 110 o C for not more than 4 hours and cooled to room temperature before testing, if necessary.
In addition, it was reported that the corresponding BS ten percent fines values were 13.3 and 11.3 tonnes, respectively. Bairagi et al. found that the crushing value increased and the ten percent fines value decreased with the age of original concrete from which the recycled aggregate produced. This may be attributed to the presence of weak ...
For aggregates smaller than 10 mm, a 75 mm diameter cylinder and associated equipment is available. UTA-0630 and UTA-0640 Test Sets are also used for the Ten Percent Fines Value (TFV) of aggregates according to BS 812:111. The Aggregate Crushing Value (ACV) Set is supplied complete with: Cylinder, Base Plate, Plunger, Cylindrical Measure ...
10 Test report The report shall affirm that the ten per cent fines value of the dry aggregate and/or soaked aggregate was determined in accordance with this Part of BS 812 and whether or not a certificate of sampling is available. ... Methods of sampling. BS 812-110, Methods for determination of aggregate crushing value (ACV). BS 812-112 ...
The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. ... and in such cases the ten percent fines value should be determined instead. 2. apparatus required. Fig. 1: Balance. Balance should be accurate upto 1 gm. Fig. 2: Sieve (12.5 mm, 10.0 mm and 2.36 mm) ...
IS:9376-1979 1. SCOPE 1.1 This standard covers requirements of the apparatus for measuring aggregate crushing value and ten percent fines value. 1.1.1 Two sizes of apparatus are covered in this standard, one with 150 mm cylindrical cell and the other with 75 mm cylindrical cell. 2.
This document gives the test method for determination of ten percent fines value (TFV) of aggregates. This method gives a relative measure of the resistance of the aggregate crushing under the gradually applied compressive load. It covers two sets of procedures: — the first procedure is applicable for aggregates tested in dry condition; and
This document gives the test method for determination of ten percent fines value (TFV) of aggregates. This method gives a relative measure of the resistance of the aggregate crushing under the gradually applied compressive load.
In cases where the aggregate crushing value is 30 or higher, the result may be anomalous, and therefore, the ten percent fines value should be determined instead. The purpose of conducting this test is to determine the aggregate crushing value of coarse aggregates and evaluate their suitability for use in various types of roads. …
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