BS ISO 20290-4:2019
$102.76
Aggregates for concrete. Test methods for mechanical and physical properties – Determination of ten percent fines value (TFV)
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 16 |
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:
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the first procedure is applicable for aggregates tested in dry condition; and
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the second procedure is applicable for aggregates tested in a soaked condition.
Generally, the test can be done under dry conditions. However, the engineer in charge can choose to test them in soaked condition, if necessary.
The method is applicable to aggregates of different strengths covering both weak and strong aggregates. It is applicable to standards aggregates, i.e. passing a 14,0 mm test sieve and retained on 10,0 mm test sieve.
National standards can also exist for the aggregate size fraction to be taken for this test. In case this definite size fraction is not available, the test can be made on other sizes, given in Annex A. The comparison of results of non-standard sizes with standard size aggregates is not possible due to lack of available data.
Minor variations in grading divisions can be allowed in respective national standards.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Principle 5 Sampling 6 Apparatus 6.1 General apparatus |
| 10 | 6.2 Additional apparatus 7 Preparation of test portions and specimens 7.1 Test portions |
| 11 | 7.2 Test specimens in a dry condition 7.3 Test specimens in a soaked condition |
| 12 | 8 Procedure 8.1 Aggregates in dry condition |
| 13 | 8.2 Aggregates in a soaked condition 9 Calculations and expression of results 10 Test report |
| 14 | Annex A (informative) Recommended method for determining the ten per cent fines value for other size fractions of aggregate |
