STN EN 196-12
| Name: | STN EN 196-12 |
| Validity: | Valid |
| Number of pages: | 16 |
| Language: |
EN
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| Slovak title | Metódy skúšania cementu. Časť 12: Reaktivita zložiek cementu. Metódy stanovenia hydratačného tepla a obsahu viazanej vody |
| English title | Methods of testing cement - Part 12: Reactivity of cement constituents - Heat of hydration and bound water content methods |
| Release Date: | 01. 03. 2025 |
| Date of withdrawal: | |
| ICS: | 91.100.10 |
| Sorting character/National clasification code | 72 2100 |
| Level of incorporation: | idt EN 196-12:2024 |
| Official Journal | 02/25 |
| Amendments | |
| Replaced by: | |
| Repleces: | |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies two equivalent test methods to assess the chemical reactivity of a pozzolanic or latent hydraulic cement constituent or concrete addition by measurements of heat of hydration (see Clause 5 and 8.3 Method A, Heat of Hydration) or bound water content (see Clause 5 and 8.4 Method B, Bound Water Content) of hydrated pastes composed of the cement constituent or concrete addition, calcium hydroxide, calcium carbonate, potassium sulfate, and potassium hydroxide cured at 40 °C for 72 h and 168 h (3 days and 7 days). These two test methods measure chemical reactivity of test specimens intended for use as cementitious materials, such as cement constituents and concrete additions. The test methods do not distinguish between latent hydraulic and pozzolanic reactivity. The test methods are used for qualification purposes if the cement constituents or concrete additions are tested at the fineness as specified by the respective product standards. In the absence of a product standard or a ... |
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