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721194 - ČSN EN 1097-6 - Zkoušení mechanických a fyzikálních vlastností kameniva - Část 6: Stanovení objemové hmotnosti zrn a nasákavosti | ||
| Název : 721194 - ČSN EN 1097-6 - Zkoušení mechanických a fyzikálních vlastností kameniva - Část 6: Stanovení objemové hmotnosti zrn a nasákavosti
Označení normy : ČSN EN 1097-6 Katalogové číslo : 514726 Třídící znak : 721194 Účinnost : 2022-08-01 Věstník : 2022.07 Strany : 64 Převzata :vyhlášením ve Věstníku - v angličtině TATO NORMA JE NEPLATNÁ | ||
| Cena : | 564.00 Kč (DPH= 0%), s DPH= 564.00 Kč | Nelze zakoupit |
| ANOTACE "ČSN EN 1097-6 This document specifies the reference methods used for type testing and in case of dispute, for the determination of particle density and water absorption of normal weight and lightweight aggregates. Other methods can be used for other purposes, such as factory production control, provided that an appropriate working relationship with the reference method has been established. For convenience, some of these other methods are also described in this document. The reference methods for normal weight aggregates are: - a wire basket method for aggregate particles retained on the 31,5 mm sieve (Clause 7, except for railway ballast which uses Annex B); - a pyknometer method for aggregate particles passing the 31,5 mm sieve and retained on the 4 mm sieve (Clause 8); - a pyknometer method for aggregate particles passing the 4 mm sieve and retained on the 0,063 mm sieve (Clause 9). In Clauses 7, 8 and 9, three different particle densities (oven-dried particle density, saturated and surface-dried particle density and apparent particle density) and water absorption are determined after a soaking period of 24 h. In Annex B, the oven-dried particle density is determined after soaking in water to constant mass. For aggregate particles passing the 31,5 mm sieve and retained on the 4 mm sieve, the wire basket method in Clause 7 can be used as an alternative to the pyknometer method in Clause 8." | ||