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ASTM C845/C845M-18
Standard Specification for Expansive Hydraulic Cement
NORMA vydaná dňa 1.7.2018
Informácie o norme:
Označenie normy: ASTM C845/C845M-18
Dátum vydania normy: 1.7.2018
Kód tovaru: NS-852667
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM C845/C845M-18 :
This specification covers hydraulic cements that expand during the early hardening period after setting. The cement covered by this specification is suitable for use in shrinkage-compensating concrete and shall be designated as Type E-1. Expansive cement shall conform to the requirements as to chemical composition prescribed. Expansive cement shall conform to the physical requirements prescribed. The cement shall be sampled and the properties shall be determined with the following test methods: sampling, chemical analysis, time of setting, air content, restrained expansion of mortar, compressive strength, and density.
Keywords:
calcium aluminate, calcium aluminosulfate, calcium oxide, calcium silicate, calcium sulfate, cement, expansive, hydraulic, shrinkage-compensated, tricalcium aluminate,, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
Doplňujúce informácie
| 1. Scope | ||||||||||||||||||||
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1.1 This specification covers hydraulic cements that expand during the early hardening period after setting. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||||||||||
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