Research progress on the hydration of portland cement with calcined clay and limestone

Jin Tang, Suhua Ma, Weifeng Li, Hui Yang, Xiaodong Shen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The use of calcined clay and limestone as supplementary cementitious materials, can have a certain influence on the hydration of Portland cement. This paper reviewed the influence of limestone and calcined clay and the mixture of limestone and calcined clay on the hydration of cement. Both limestone and calcined clay accelerate the hydration reaction in the early hydration age and enhance the properties of cement. Limestone reacts with C3A to form carboaluminate, which indirectly stabilized the presence of ettringite, while calcined clay consumed portlandite to form C-(A)-S-H gel, additional hydration products promote the densification of pore structure and increase the mechanical properties. The synergistic effect of calcined clay and limestone stabilize the existence of ettringite and stimulate the further formation of carboaluminate, as well as the C-(A)-S-H gel, contributed to a dense microstructure.

Original languageEnglish
Title of host publicationMaterials in Machinery and Construction
EditorsCai Jun Shi, Jue Shi Qian, Xi Gao Jian, Di Tao Niu, Fu Sheng Pan, Lang He
PublisherTrans Tech Publications Ltd
Pages240-246
Number of pages7
ISBN (Print)9783035718119
DOIs
StatePublished - 2021
Event2nd Conference on Research and Application of Advanced Cementitious Materials and Advanced Materials Forum, CRAACM and AMF 2020 - Xi'an, China
Duration: 1 Oct 2020 → …

Publication series

NameMaterials Science Forum
Volume1036 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2nd Conference on Research and Application of Advanced Cementitious Materials and Advanced Materials Forum, CRAACM and AMF 2020
Country/TerritoryChina
CityXi'an
Period1/10/20 → …

Keywords

  • Calcined clay
  • Carboaluminate
  • Hydration
  • Limestone
  • Synergistic effect

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