A physico-chemical basis for novel cementitious binders

Ellis M. Gartner, Donald E. Macphee

Research output: Contribution to journalArticle

172 Citations (Scopus)

Abstract

The drive towards sustainability in construction is shaping our attitudes towards alternatives to Portland cement. Although the cement and concrete industry is essentially sustainable with respect to raw materials supply, and concrete manufacture actually gives relatively low CO2 emissions per unit volume compared to most competitive construction materials, the current focus on climate change has led to concerns about cement industry-generated CO2. Thus, there is interest in developing alternative cements with lower associated CO2 emissions. This paper seeks to provide a context for innovative development through a review of what is meant by a hydraulic cementitious binder, identification of key physico-chemical properties of successful binders and how novel systems generally rely on similar factors. Concepts such as reactivity, availability of reactive species and physico-chemical drivers for the formation of cementitious systems are discussed as a basis for introducing and reviewing recent developments in the search for ever more environmentally sustainable cements.
Original languageEnglish
Pages (from-to)736-749
Number of pages14
JournalCement and Concrete Research
Volume41
Issue number7
Early online date6 May 2011
DOIs
Publication statusPublished - Jul 2011

Fingerprint

Cement industry
Binders
Cements
Concrete industry
Portland cement
Climate change
Chemical properties
Sustainable development
Raw materials
Hydraulics
Availability
Concretes

Keywords

  • novel cements (D)
  • hydration (A)
  • reactivity (A)
  • calcium silicate hydrate
  • optical basicity concept
  • Portland-cement
  • fly-ash
  • aluminosilicate dissolution
  • coordination-number
  • alkaline activation
  • geopolymeric gels
  • S-H
  • systems

Cite this

A physico-chemical basis for novel cementitious binders. / Gartner, Ellis M.; Macphee, Donald E.

In: Cement and Concrete Research, Vol. 41, No. 7, 07.2011, p. 736-749.

Research output: Contribution to journalArticle

@article{4efb46c995bf4728a01861f42f50d185,
title = "A physico-chemical basis for novel cementitious binders",
abstract = "The drive towards sustainability in construction is shaping our attitudes towards alternatives to Portland cement. Although the cement and concrete industry is essentially sustainable with respect to raw materials supply, and concrete manufacture actually gives relatively low CO2 emissions per unit volume compared to most competitive construction materials, the current focus on climate change has led to concerns about cement industry-generated CO2. Thus, there is interest in developing alternative cements with lower associated CO2 emissions. This paper seeks to provide a context for innovative development through a review of what is meant by a hydraulic cementitious binder, identification of key physico-chemical properties of successful binders and how novel systems generally rely on similar factors. Concepts such as reactivity, availability of reactive species and physico-chemical drivers for the formation of cementitious systems are discussed as a basis for introducing and reviewing recent developments in the search for ever more environmentally sustainable cements.",
keywords = "novel cements (D), hydration (A), reactivity (A), calcium silicate hydrate, optical basicity concept, Portland-cement, fly-ash, aluminosilicate dissolution, coordination-number, alkaline activation, geopolymeric gels, S-H, systems",
author = "Gartner, {Ellis M.} and Macphee, {Donald E.}",
year = "2011",
month = "7",
doi = "10.1016/j.cemconres.2011.03.006",
language = "English",
volume = "41",
pages = "736--749",
journal = "Cement and Concrete Research",
issn = "0008-8846",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",
number = "7",

}

TY - JOUR

T1 - A physico-chemical basis for novel cementitious binders

AU - Gartner, Ellis M.

AU - Macphee, Donald E.

PY - 2011/7

Y1 - 2011/7

N2 - The drive towards sustainability in construction is shaping our attitudes towards alternatives to Portland cement. Although the cement and concrete industry is essentially sustainable with respect to raw materials supply, and concrete manufacture actually gives relatively low CO2 emissions per unit volume compared to most competitive construction materials, the current focus on climate change has led to concerns about cement industry-generated CO2. Thus, there is interest in developing alternative cements with lower associated CO2 emissions. This paper seeks to provide a context for innovative development through a review of what is meant by a hydraulic cementitious binder, identification of key physico-chemical properties of successful binders and how novel systems generally rely on similar factors. Concepts such as reactivity, availability of reactive species and physico-chemical drivers for the formation of cementitious systems are discussed as a basis for introducing and reviewing recent developments in the search for ever more environmentally sustainable cements.

AB - The drive towards sustainability in construction is shaping our attitudes towards alternatives to Portland cement. Although the cement and concrete industry is essentially sustainable with respect to raw materials supply, and concrete manufacture actually gives relatively low CO2 emissions per unit volume compared to most competitive construction materials, the current focus on climate change has led to concerns about cement industry-generated CO2. Thus, there is interest in developing alternative cements with lower associated CO2 emissions. This paper seeks to provide a context for innovative development through a review of what is meant by a hydraulic cementitious binder, identification of key physico-chemical properties of successful binders and how novel systems generally rely on similar factors. Concepts such as reactivity, availability of reactive species and physico-chemical drivers for the formation of cementitious systems are discussed as a basis for introducing and reviewing recent developments in the search for ever more environmentally sustainable cements.

KW - novel cements (D)

KW - hydration (A)

KW - reactivity (A)

KW - calcium silicate hydrate

KW - optical basicity concept

KW - Portland-cement

KW - fly-ash

KW - aluminosilicate dissolution

KW - coordination-number

KW - alkaline activation

KW - geopolymeric gels

KW - S-H

KW - systems

U2 - 10.1016/j.cemconres.2011.03.006

DO - 10.1016/j.cemconres.2011.03.006

M3 - Article

VL - 41

SP - 736

EP - 749

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

IS - 7

ER -