Coherent diffraction study of calcite crystallization during the hydration of tricalcium silicate

Liu, Xianping1,2,3; Lin, Wei1; Chen, Bo1,3,4; Zhang, Fucai3,4,5; Zhao, Piqi6; Parsons, Aaron7; Rau, Christoph7; Robinson, Ian1,4,8

2018-11-05

10.1016/j.matdes.2018.07.031

MATERIALS AND DESIGN   影响因子和分区

0264-1275

1873-4197

The aim of this work is using Bragg coherent X-ray diffraction imaging (BCDI) to study the calcite crystallization during carbonation of hydrated tricalcium silicate (C3S). Portland cement is a very complex synthesized product whose 50-70% mass is composed of C3S, which is the most important phase to produce calcium silicate hydrates and calcium hydroxide. Hence, its hydration contributes greatly to the hydration of cement and later to the carbonation of cement products when it reacts with CO2, often from the air, to form calcium carbonates. BCDI has emerged in the last decade as a promising high-resolution lens-less imaging approach for characterization of various samples. It has made significant progress with the development of X-ray sources and phase-retrieval algorithms. BCDI allows for imaging the whole three-dimensional structure of micro-and sub-micro-crystalline materials and can show the strain distribution at the nanometer spatial resolution. Results show that calcite crystallization follows a through-solution reaction and the growth model of the calcite crystal can be explained by using "phase domain" theory. During carbonation, calcite crystals grow by increasing the number of phase domains within them while the domain size remains at about 200-300 nm. (C) 2018 Elsevier Ltd. All rights reserved.

Carbonation Bragg coherent X-ray diffraction imaging (BCDI) Calcite crystallization Tricalcium silicate (C3S)

SCI ; EI

英语

其他

National Natural Science Foundation of China[51102181]

Materials Science

Materials Science, Multidisciplinary

WOS:000443826600024

ELSEVIER SCI LTD

20183105642927

Calcite ; Calcium carbonate ; Carbonation ; Crystalline materials ; Hydrated lime ; Hydration ; Lime ; Portland cement ; Silicates ; X ray diffraction ; X ray optics

Cement:412.1 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China
2.Tongji Univ, Minist Educ, Key Lab Adv Civil Engn Mat, Shanghai 201804, Peoples R China
3.Rutherford Appleton Lab, Res Complex Harwell, Didcot OX11 0FA, Oxon, England
4.UCL, London Ctr Nanotechnol, London WC1H 0AH, England
5.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
6.Univ Jinan, Shangdong Prov Key Lab Preparat & Measurement Bld, Jinan 250022, Shandong, Peoples R China
7.Rutherford Appleton Lab, Diamond Light Source, Didcot OX11 0FA, Oxon, England
8.Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

Liu, Xianping,Lin, Wei,Chen, Bo,et al. Coherent diffraction study of calcite crystallization during the hydration of tricalcium silicate[J]. MATERIALS AND DESIGN,2018,157:251-257.

Liu, Xianping.,Lin, Wei.,Chen, Bo.,Zhang, Fucai.,Zhao, Piqi.,...&Robinson, Ian.(2018).Coherent diffraction study of calcite crystallization during the hydration of tricalcium silicate.MATERIALS AND DESIGN,157,251-257.

Liu, Xianping,et al."Coherent diffraction study of calcite crystallization during the hydration of tricalcium silicate".MATERIALS AND DESIGN 157(2018):251-257.