skip to main content

SciTech ConnectSciTech Connect

Title: Mechanical properties of jennite: A theoretical and experimental study

The objective of this study is to determine the mechanical properties of jennite. To date, several hypotheses have been proposed to predict the structural properties of jennite. For the first time as reported herein, the isothermal bulk modulus of jennite was measured experimentally. Synchrotron-based high-pressure x-ray diffraction experiments were performed to observe the variation of lattice parameters under pressure. First-principles calculations were applied to compare with the experimental results and predict additional structural properties. Accurately measured isothermal bulk modulus herein (K{sub 0} = 64(2) GPa) and the statistical assessment on experimental and theoretical results suggest reliable mechanical properties of shear and Young's modulus, Poisson's ratio, and elastic tensor coefficients. Determination of these fundamental structural properties is the first step toward greater understanding of calcium–silicate–hydrate, as well as provides a sound foundation for forthcoming atomic level simulations.
Authors:
 [1] ;  [2] ;  [3]
  1. Civil Engineering Program, Department of Mechanical Engineering, Stony Brook University, NY 11794 (United States)
  2. School of Engineering, Kings College, University of Aberdeen, Aberdeen AB24 3UE (United Kingdom)
  3. Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720 (United States)
Publication Date:
OSTI Identifier:
22475505
Resource Type:
Journal Article
Resource Relation:
Journal Name: Cement and Concrete Research; Journal Volume: 71; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM SILICATES; COMPARATIVE EVALUATIONS; HYDRATES; LATTICE PARAMETERS; POISSON RATIO; PRESSURE DEPENDENCE; SHEAR; SOUND WAVES; TENSORS; VARIATIONS; X-RAY DIFFRACTION; YOUNG MODULUS