Multiscale microstructure and micromechanical properties of alkali-activated concrete: A critical review

W Tu, M Zhang - Cement and Concrete Composites, 2024 - Elsevier
With the rapid development of alkali-activated concrete (AAC) as a promising sustainable
concrete, it is vital to thoroughly understand the microstructural characteristics and …

Properties of early-age concrete relevant to cracking in massive concrete

I Maruyama, P Lura - Cement and Concrete Research, 2019 - Elsevier
This paper provides an overview of the early-age properties of concrete, from a materials
science and concrete engineering perspective. The aim of this manuscript is to contribute to …

Microstructural changes of young cement paste due to moisture transfer at low air pressures

S Zuo, Q Yuan, T Huang, K Zhang, J Shi… - Cement and Concrete …, 2023 - Elsevier
It has been long recognized that low air pressure (AP) affects the moisture transfer in
concrete, and thus its microstructure and bulk property, but less is known about the …

A novel lattice model to predict chloride diffusion coefficient of unsaturated cementitious materials based on multi-typed pore structure characteristics

L Tong, QX Xiong, Z Zhang, X Chen, G Ye… - Cement and Concrete …, 2024 - Elsevier
This paper develops a novel lattice diffusive model to quantitatively study the chloride
diffusion coefficient in unsaturated cementitious materials, in which the pore voxels are …

Pore structure characterization of cement pastes blended with high-volume fly-ash

Q Zeng, K Li, T Fen-Chong, P Dangla - Cement and Concrete Research, 2012 - Elsevier
The pore structure of cement pastes incorporating fly-ash was evaluated during their
hydration process through gravimetry method, mercury intrusion porosimetry (MIP) and …

Multiscale micromechanical analysis of alkali-activated fly ash-slag paste

G Fang, M Zhang - Cement and Concrete Research, 2020 - Elsevier
Current demand for highly sustainable concrete, eg alkali-activated fly ash-slag (AAFS)
concrete, urges understanding the links between microstructure and micromechanical …

The nanogranular nature of C–S–H

G Constantinides, FJ Ulm - Journal of the Mechanics and Physics of Solids, 2007 - Elsevier
Despite its ubiquitous presence as binding phase in all cementitious materials, the
mechanical behavior of calcium–silicate–hydrates (C–S–H) is still an enigma that has …

A review on the mechanical properties of cement-based materials measured by nanoindentation

C Hu, Z Li - Construction and Building Materials, 2015 - Elsevier
A well-known fact is that the mechanical properties of cement-based materials largely
depend on the material structure at the micro-and nano-scales. To understand and improve …

Nanogranular origin of concrete creep

M Vandamme, FJ Ulm - Proceedings of the National …, 2009 - National Acad Sciences
Concrete, the solid that forms at room temperature from mixing Portland cement with water,
sand, and aggregates, suffers from time-dependent deformation under load. This creep …

Water vapour sorption experiments on hardened cementitious materials: Part I: Essential tool for analysis of hygral behaviour and its relation to pore structure

V Baroghel-Bouny - Cement and Concrete Research, 2007 - Elsevier
This paper forms the first part of a series. In this first part, a broad range of normal and high-
performance (HP) hardened cement pastes and concretes is studied under both laboratory …