Journal ArticleDOI
Hydration products in sulfoaluminate cements: Evaluation of amorphous phases by XRD/solid-state NMR
Daniela Gastaldi,Geo Paul,Leonardo Marchese,S. Irico,Enrico Boccaleri,Sabine Mutke,Luigi Buzzi,Fulvio Canonico +7 more
TLDR
In this article, the hydration of four sulfoaluminate cements have been studied: three sulfo aluminate systems, having different content of sulfate and silicate, and one blend Portland-CSA-calcium sulfate binder.About:
This article is published in Cement and Concrete Research.The article was published on 2016-12-01. It has received 126 citations till now. The article focuses on the topics: Belite & Amorphous solid.read more
Citations
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Influence of limestone on the hydration of ternary slag cements
TL;DR: The hydration kinetics, microstructure and pore solution composition of ternary slag-limestone cement have been investigated in this paper, where commercial CEM I 52.5 R was blended with slag and limestone; maintaining a clinker to SCM ratio of 50:50 with up to 20% slag replaced by limestone.
Journal ArticleDOI
Advances in understanding ye'elimite-rich cements
TL;DR: In this paper, the authors discuss the recent advances in understanding ye'elimite-rich cements and the effects of aluminate-rich minerals on the hydration mechanism and the resulting hydrates assemblage.
Journal ArticleDOI
Effects of ordinary Portland cement on the early properties and hydration of calcium sulfoaluminate cement
TL;DR: In this paper, the authors used OPC to enhance the early performances of calcium sulfoaluminate cement (CSA), and the hydration process of CSA-OPC composite was researched by XRD, TG and SEM.
Journal ArticleDOI
Effect of NaOH content on hydration, mineralogy, porosity and strength in alkali/sulfate-activated binders from ground granulated blast furnace slag and phosphogypsum
TL;DR: In this paper, the effect of NaOH content on alkali/sulfate-activated binders from 90% ground granulated blast furnace slag (GGBFS) and 10% phosphogypsum (PG) was investigated.
Journal ArticleDOI
Utilization of barium slag to improve chloride-binding ability of cement-based material
Pian Chen,Baoguo Ma,Hongbo Tan,Hongbo Tan,Xiaohai Liu,Ting Zhang,Ting Zhang,Chunbao Li,Qi Yang,Zhongtao Luo +9 more
TL;DR: In this paper, barium slag (BS) was utilized as a supplementary cementitious material (SCM) to improve the chloride-binding ability of cement pastes, and the results showed that 10-30% BS greatly promoted the CBR of the cement-BS system.
References
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Journal ArticleDOI
Modelling one- and two-dimensional solid-state NMR spectra†
Dominique Massiot,Franck Fayon,Mickaël Capron,Ian King,Ian King,Stéphanie Le Calvé,Bruno Alonso,Jean-Olivier Durand,Bruno Bujoli,Zhehong Gan,Gina L. Hoatson +10 more
TL;DR: In this article, the authors present some examples of modeling one and two-dimensional solid-state NMR spectra of I = ½ spin and quadrupolar nuclei, using laboratory-developed software that is made available to the NMR community.
Journal ArticleDOI
Industrially interesting approaches to “low-CO2” cements ☆
TL;DR: In this paper, the authors discuss the practicality of replacing portland cements with alternative hydraulic cements that could result in lower total CO 2 emissions per unit volume of concrete of equivalent performance.
Journal ArticleDOI
29Si MAS NMR study of the structure of calcium silicate hydrate
TL;DR: In this article, a defect-tobermorite structural model is proposed for single-phase calcium silicate hydrate with known compositions using the combined capabilities of 29Si magic angle spinning (MAS) NMR, powder X-ray diffraction (XRD), and chemical analysis of the solution and solid.
Journal ArticleDOI
Hydration of calcium sulfoaluminate cements — Experimental findings and thermodynamic modelling
TL;DR: In this article, the hydration of two CSA cements has been investigated experimentally and by thermodynamic modelling between 1h and 28 days at w/c ratios of 0.72 and 0.80, respectively.
Journal ArticleDOI
High-performance cement matrices based on calcium sulfoaluminate–belite compositions
Fredrik P. Glasser,L. Zhang +1 more
TL;DR: In this article, the chemistry and physics of sulfoaluminate cements hydration are described, and it is concluded that the self-desiccated state, once achieved, is very difficult to resaturate and that the dry internal environment is partly responsible for the virtual absence of corrosion of embedded steel.
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Hydration of calcium sulfoaluminate cements — Experimental findings and thermodynamic modelling
High-performance cement matrices based on calcium sulfoaluminate–belite compositions
Fredrik P. Glasser,L. Zhang +1 more