Journal ArticleDOI
Hydration of calcium aluminates and calcium sulfoaluminate studied by Raman spectroscopy
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TLDR
In this article, Raman spectroscopy has been used to follow the hydration of the main calcium aluminate phases present in CAC and calcium sulfoaluminate cement (CSA) clinkers.About:
This article is published in Cement and Concrete Research.The article was published on 2013-05-01. It has received 115 citations till now. The article focuses on the topics: Aluminate & Calcium aluminates.read more
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A Review on the Durability of Alkali-Activated Fly Ash/Slag Systems: Advances, Issues, and Perspectives
TL;DR: In this article, the authors provide an overview of the latest developments on durability of fly ash/slag-based AAMs with the aim to update recent findings regarding their behavior under aggressive conditions (sulfates, freeze-thaw, chloride, carbonation, acid, efflorescence).
Journal ArticleDOI
Hydration stage identification and phase transformation of calcium sulfoaluminate cement at early age
TL;DR: In this paper, the authors studied hydration stages and phase transformation mechanism of fresh calcium sulfoaluminate (CSA) cement and found that Ettringite (AFt) and monosulfate (AFm) are metastable phases and have poor crystallization degree at early-age hydration.
Journal ArticleDOI
Emanating cool white light emission from novel down-converted SrLaAlO4:Dy3+ nanophosphors for advanced optoelectronic applications
Priyanka Sehrawat,Avni Khatkar,Priti Boora,Mukesh Kumar,Rajiv Malik,Satyender P. Khatkar,V.B. Taxak +6 more
TL;DR: In this paper, a down-converted Dy3+ doped layered perovskite SrLaAlO4 nanophosphors emitting cool white light were successfully fabricated by urea assisted solution combustion approach.
Journal ArticleDOI
An effective emission of characteristic cool white light from Dy3+ doped perovskite type SrLa2Al2O7 nanophosphors in single-phase pc WLEDs
Priyanka Sehrawat,Avni Khatkar,Sushma Devi,Anju Hooda,Sonika Singh,Rajiv Malik,Satyender P. Khatkar,V.B. Taxak +7 more
TL;DR: In this paper, a cooling white light emitting perovskite type SrLa2Al2O7: Dy3+ nanophosphors were fabricated by solution combustion route.
Journal ArticleDOI
Micro-mechanical Properties Of Calcium Sulfoaluminate Cement And The Correlation With Microstructures
TL;DR: In this article, the micro-mechanical properties of calcium sulfoaluminate cement and the correlation with the microstructures were investigated using a variety of advanced techniques, including scanning electron microscopy with backscattered electron and energy-dispersive X-ray spectroscopy detectors.
References
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Journal ArticleDOI
Changes in portlandite morphology with solvent composition: Atomistic simulations and experiment
TL;DR: In this article, a new analysis tool was developed to quantify the experimentally observed changes in morphology of portlandite, allowing the calculation of the relative surface energies of the crystal facets.
Book
The chemistry of cement and concrete
TL;DR: The chemistry of cement and concrete as discussed by the authors, The chemistry of concrete and its properties, and the relationship between concrete and cement, is a classic example of such an approach. But it is not suitable for outdoor use.
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
Infra-red spectra of inorganic aluminates and characteristic vibrational frequencies of AlO4 tetrahedra and AlO6 octahedra
TL;DR: In this article, some aspects of the interpretation of IR spectra of inorganic solids are discussed, with emphasis on the factors influencing the vibrational frequencies of cation-oxygen co-ordinated groups.
Journal ArticleDOI
Comparison of methods for arresting hydration of cement
Jie Zhang,George W. Scherer +1 more
TL;DR: In this paper, the effects on microstructure and composition of cement paste caused by the most common drying techniques, including direct drying (oven, microwave, D-Drying, P-drying, and freeze drying) and solvent exchange methods, are reviewed.
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