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ASTM C1012/C1012M-12
Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution
Automaticky preložený názov:
Štandardná skúšobná metóda pre Dĺžka Zmena Hydraulic - cementovej malty vystavený roztoku síranov
NORMA vydaná dňa 1.4.2012
Informácie o norme:
Označenie normy: ASTM C1012/C1012M-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.4.2012
Kód tovaru: NS-9054
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM C1012/C1012M-12 :
Keywords:
acceptability, expansion, fly ash, mortars, pozzolans, precision, search report, slag, sulfate attack, sulfate-resisting cements, tests , Cement mortars, Change in length, Hydraulic cement concrete, Sulfate resistance, Volumetric measurement--cement/concrete, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||
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This test method provides a means of assessing the sulfate resistance of mortars made using portland cement, blends of portland cement with pozzolans or slags, and blended hydraulic cements. Method C452 is suitable for evaluating portland cements but not blended cements or blends of portland cement with pozzolans or slags. The standard exposure solution used in this test method, unless otherwise directed, contains 352 moles of Na2SO4 per m3 (50 g/L). Other sulfate concentrations or other sulfates such as MgSO4 may be used to simulate the environmental exposure of interest. Further discussion of these and other technical issues is given in the Appendix. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||
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1.1 This test method covers the determination of length change of mortar bars immersed in a sulfate solution. Mortar bars made using mortar described in Test Method C109/C109M are cured until they attain a compressive strength of 20.0 ± 1.0 MPa [3000 ± 150 psi], as measured using cubes made of the same mortar, before the bars are immersed. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||
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