A study of early-age ordinary portland cement hydration according to autocatalytic reaction model

Tapio Vehmas; Anna Kronlöf

A study of early-age ordinary portland cement hydration according to autocatalytic reaction model

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Abstract

Early-age hydration of Ordinary Portland Cement was studied with semi-adiabatic calorimeter in the presence of limestone and calcium-silicate-hydrate (C-S-H) coated limestone. The calorimetric data was analyzed as an autocatalytic reaction. Early age hydration followed the principles of autocatalytic reaction and the rate controlling phase was the initially nucleated C-S-H. Addition of limestone did not increase it, whereas C-S-H coated limestone had a massive impact to the hydration reaction.

Original language	English
Pages (from-to)	269-272
Journal	Nordic Concrete Research
Volume	43
Publication status	Published - 2011
MoE publication type	A1 Journal article-refereed
Event	XXI Nordic Concrete Research Symposium - Hotel Rantasipi Aulanko, Hämeenlinna, Finland Duration: 30 May 2011 → 1 Jun 2011

Keywords

early-age hydration
seeding
autocatalytic reaction
calorimeter

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title = "A study of early-age ordinary portland cement hydration according to autocatalytic reaction model",

abstract = "Early-age hydration of Ordinary Portland Cement was studied with semi-adiabatic calorimeter in the presence of limestone and calcium-silicate-hydrate (C-S-H) coated limestone. The calorimetric data was analyzed as an autocatalytic reaction. Early age hydration followed the principles of autocatalytic reaction and the rate controlling phase was the initially nucleated C-S-H. Addition of limestone did not increase it, whereas C-S-H coated limestone had a massive impact to the hydration reaction.",

keywords = "early-age hydration, seeding, autocatalytic reaction, calorimeter",

author = "Tapio Vehmas and Anna Kronl{\"o}f",

note = "Project code: 23354; XXI Nordic Concrete Research Symposium ; Conference date: 30-05-2011 Through 01-06-2011",

year = "2011",

language = "English",

volume = "43",

pages = "269--272",

journal = "Nordic Concrete Research",

issn = "0800-6377",

publisher = "Norsk Betongforening",

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TY - JOUR

T1 - A study of early-age ordinary portland cement hydration according to autocatalytic reaction model

AU - Vehmas, Tapio

AU - Kronlöf, Anna

N1 - Project code: 23354

PY - 2011

Y1 - 2011

N2 - Early-age hydration of Ordinary Portland Cement was studied with semi-adiabatic calorimeter in the presence of limestone and calcium-silicate-hydrate (C-S-H) coated limestone. The calorimetric data was analyzed as an autocatalytic reaction. Early age hydration followed the principles of autocatalytic reaction and the rate controlling phase was the initially nucleated C-S-H. Addition of limestone did not increase it, whereas C-S-H coated limestone had a massive impact to the hydration reaction.

AB - Early-age hydration of Ordinary Portland Cement was studied with semi-adiabatic calorimeter in the presence of limestone and calcium-silicate-hydrate (C-S-H) coated limestone. The calorimetric data was analyzed as an autocatalytic reaction. Early age hydration followed the principles of autocatalytic reaction and the rate controlling phase was the initially nucleated C-S-H. Addition of limestone did not increase it, whereas C-S-H coated limestone had a massive impact to the hydration reaction.

KW - early-age hydration

KW - seeding

KW - autocatalytic reaction

KW - calorimeter

M3 - Article

VL - 43

SP - 269

EP - 272

JO - Nordic Concrete Research

JF - Nordic Concrete Research

SN - 0800-6377

T2 - XXI Nordic Concrete Research Symposium

Y2 - 30 May 2011 through 1 June 2011

ER -