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 …

Structure, fractality, mechanics and durability of calcium silicate hydrates

S Tang, Y Wang, Z Geng, X Xu, W Yu, J Chen - Fractal and Fractional, 2021 - mdpi.com
Cement-based materials are widely utilized in infrastructure. The main product of hydrated
products of cement-based materials is calcium silicate hydrate (CSH) gels that are …

Incorporation of Al in CASH gels with various Ca/Si and Al/Si ratio: Microstructural and structural characteristics with DTA/TG, XRD, FTIR and TEM analysis

E Kapeluszna, Ł Kotwica, A Różycka, Ł Gołek - Construction and Building …, 2017 - Elsevier
Abstract Systems of different Ca/Si and Al/Si molar ratios were investigated. Incorporation of
Al increases main basal spacing, amount of bounded water and decreases crystallinity of C …

Influence of the Ca/Si ratio on the compressive strength of cementitious calcium–silicate–hydrate binders

W Kunther, S Ferreiro, J Skibsted - Journal of Materials Chemistry A, 2017 - pubs.rsc.org
The relation between the chemical composition of calcium–silicate–hydrate (C–S–H)
phases and its influence on the compressive strength of cementitious materials is …

Nanotechnology in concrete–a review

F Sanchez, K Sobolev - Construction and building materials, 2010 - Elsevier
This paper reviews the state of the field of nanotechnology in concrete. Definitions of
nanotechnology, including nanoscience and nano-engineering in concrete, are provided …

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 …

Hydration of cementitious materials, present and future

KL Scrivener, A Nonat - Cement and concrete research, 2011 - Elsevier
This paper is a keynote presentation from the 13th International Congress on the Chemistry
of Cement. It discusses the underlying principles of hydration and recent evidence for the …

Effects of alkali dosage and silicate modulus on autogenous shrinkage of alkali-activated slag cement paste

W Chen, B Li, J Wang, N Thom - Cement and Concrete Research, 2021 - Elsevier
Autogenous shrinkage of alkali-activated slag cement (AASC) paste prepared with different
levels of alkali dosage and silicate modulus (M s) is investigated. The results show that …

Influence of nucleation seeding on the hydration mechanisms of tricalcium silicate and cement

JJ Thomas, HM Jennings, JJ Chen - The Journal of Physical …, 2009 - ACS Publications
The fundamental chemical hydration process of portland cement and its main mineral
component, tricalcium silicate, was studied by investigating the effects of various additives. A …

Refinements to colloid model of CSH in cement: CM-II

HM Jennings - Cement and Concrete Research, 2008 - Elsevier
This paper describes a second generation model for the nanostructure of CSH based on the
interpretation of water sorption isotherms. The cornerstone of the model is a description of …