EN 12390-14:2018
(Main)Testing hardened concrete - Part 14: Semi-adiabatic method for the determination of heat released by concrete during its hardening process
Testing hardened concrete - Part 14: Semi-adiabatic method for the determination of heat released by concrete during its hardening process
This document specifies the procedure for the determination of heat released by concrete during its hardening process in semi-adiabatic conditions in a laboratory. Annex B specifies the procedure when the test is performed on site. The test is suitable for specimens having a declared value of D of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 32 mm.
Prüfung von Festbeton - Teil 14: Teiladiabatisches Verfahren zur Bestimmung der Wärme, die während des Erhärtungsprozesses von Beton freigesetzt wird
Dieses Dokument legt das Verfahren zur Bestimmung der von Beton während des Erhärtungsprozesses unter teiladiabatischen Bedingungen in einem Labor freigesetzten Wärme fest. In Anhang B ist das Verfahren für den Fall der Prüfung vor Ort festgelegt. Die Prüfung eignet sich für Probekörper, für die der angegebene Wert D für das Größtkorn der im Beton verwendeten Gesteinskörnung (Dmax) höchstens 32 mm beträgt.
Essais pour béton durci - Partie 14 : Méthode semi-adiabatique de détermination de la chaleur dégagée par le béton en cours de durcissement
Le présent document spécifie le mode opératoire de détermination de la chaleur dégagée par le béton au cours de son processus de durcissement en condition semi-adiabatique en laboratoire. L’Annexe B spécifie le mode opératoire lorsque l’essai est réalisé sur site. L’essai est adapté aux éprouvettes ayant une valeur déclarée D de la partie la plus grosse des granulats réellement utilisés dans le béton (Dmax) ne dépassant pas 32 mm.
Preskušanje strjenega betona - 14. del: Semiadiabatska metoda za ugotavljanje toplote, ki se sprosti med procesom strjevanja betona
Ta evropski standard določa postopek za ugotavljanje toplote, ki se sprosti med procesom strjevanja betona v semiadiabatskem pogoju v laboratoriju. Dodatek B določa postopek, ki se uporablja, kadar je preskus izveden na mestu uporabe.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje strjenega betona - 14. del: Semiadiabatska metoda za ugotavljanje toplote, ki se sprosti med procesom strjevanja betonaPrüfung von Festbeton -Teil 14: Teiladiabatisches Verfahren zur Bestimmung der Wärme, die während des Erhärtungsprozesses von Beton freigesetzt wirdEssai pour béton durci - Partie 14: Méthode semi-adiabatique de détermination de la chaleur dégagée par le béton au cours son processus de durcissementTesting hardened concrete - Part 14: Semi-adiabatic method for the determination of heat released by concrete during its hardening process91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 12390-14:2018SIST EN 12390-14:2018en,fr,de01-oktober-2018SIST EN 12390-14:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12390-14
August
t r s z ICS
{ sä s r rä u r English Version
Testing hardened concrete æ Part
s vã Semiæadiabatic method for the determination of heat released by concrete during its hardening process Essais pour béton durci æ Partie
s v ã Méthode semiæadiabatique de détermination de la chaleur dégagée par le béton en cours de durcissement
Prüfung von Festbeton æ Teil
s vã Teiladiabatisches Verfahren zur Bestimmung der Wärmeá die während des Erhärtungsprozesses von Beton freigesetzt wird This European Standard was approved by CEN on
{ April
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t u { ræ s vã t r s z ESIST EN 12390-14:2018
Calibration of semi-adiabatic calorimeter . 12 A.1 Calibration of the semi-adiabatic calorimeter . 12 A.1.1 General . 12 A.1.2 Determination of the total heat loss coefficient . 12 A.1.3 Determination of heat capacity . 13 A.2 Alternative method for the calibration of semi-adiabatic calorimeter . 14 A.2.1 Calibration procedure . 14 A.2.2 Determination of heat capacity and heat loss coefficient. 14 Annex B (informative)
Experimentation on site . 16 Annex C (informative)
Specific heat of concrete components . 17 Bibliography . 18
http://www.electropedia.org/
http://www.iso.org/obp 3.1.1 semi-adiabatic calorimeter equipment containing a calorimetric cell where the maximum heat losses are limited 3.1.2 calorimeter coefficient of heat loss () proportionality factor between heat losses and the difference of temperature between inside and outside of the calorimeter; the coefficient of heat loss is a linear function of this difference of temperature 3.1.3 semi-adiabatic heat release (q) heat released by unit mass of concrete during its hydration in semi-adiabatic conditions as a function of time 3.1.4 calorimeter cell element containing the test sample in its mould or control specimen and having an external insulated enclosure with a sealable removable cover SIST EN 12390-14:2018
two measures of temperature cc
specific heat of cement cad
specific heat of additions cag
specific heat of dry aggregate cw
average specific heat of water in hardening concrete mcon kg mass of concrete sample mc=kg nominal mass of cement in the mix design per cubic metre mad kg nominal mass of additions in
the mix design per cubic metre mag kg nominal mass of dry aggregate in
the mix design per cubic metre mw=kg nominal mass of total water in
the mix design per cubic metre mmould kg sum of the masses of empty mould, probe tube and mould cover u, du - mathematical integration variable Q(tn) J calculated heat loss between measurements numbers n-1 and n R2 — regression coefficient CT J/K total heat capacity of the system equipment containing calibration sample, a reference sample or the calibration medium a, b — calibration coefficients SIST EN 12390-14:2018
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