SIST EN 196-11:2019
Methods of testing cement - Part 11: Heat of hydration - Isothermal Conduction Calorimetry method
Methods of testing cement - Part 11: Heat of hydration - Isothermal Conduction Calorimetry method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 17
- Дата публикации:
- 11 января 2019 г.
- ICS:
- 91.100.10
- Технический комитет:
- CAA - Mineral binders and masonry
This document specifies the apparatus and procedure for determining the heat of hydration of cements and other hydraulic binders at different test ages by isothermal conduction calorimetry. This test procedure is intended for measuring the heat of hydration of cement up to 7 days in order to obtain correspondence between Isothermal Conduction Calorimetry (ICC) and EN 196 8 and EN 196 9. Nevertheless this test duration may be critical for some apparatus, even if they can work properly at shorter test ages. Contrary to EN 196 8 this method gives the heat of hydration continuously over the time. Additionally, the heat flow versus time is given.
Abstract
EN 196-11:2018 - Overview
EN 196-11:2018 (CEN) defines the apparatus and procedure for determining the heat of hydration of cement and other hydraulic binders by Isothermal Conduction Calorimetry (ICC). The method provides a continuous record of heat release (heat flow versus time) and total heat of hydration up to 7 days, enabling correspondence with the solution and semi-adiabatic methods in EN 196-8 and EN 196-9. The standard is intended for laboratories performing cement testing, research, quality control and product development.
Key topics and technical requirements
- Principle: ICC measures heat flow from a sample held in thermal contact with a constant-temperature heat sink; at least one sample cell and one reference cell are used.
- Thermostat: working temperature (20 ± 0.2) °C; temperature instability ≤ 0.2 °C.
- Continuous outputs: heat flow vs time and time-integrated heat (J/g) for the sample.
- Calorimeter parameters required:
- **Detection limit (DL):
Технические детали
- SKU
- SIST EN 196-11:2019
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