Results 31 to 40 of about 43,789 (206)

Evaluation of pH, Calcium Ion Release, and Dimensional Stability of an Experimental Silver Nanoparticle-Incorporated Calcium Silicate-Based Cement

Bioinorganic Chemistry and Applications, 2021
An experimental calcium silicate-based root-end filling material incorporated with silver nanoparticles intended for use in periapical surgeries was developed with the purpose to overcome the drawbacks of existing materials and to satisfy the ideal ...
Teena Sheethal Dsouza, Aditya Shetty, Neevan Dsouza   +2 more
doaj   +1 more source

Multiscale understanding of tricalcium silicate hydration reactions [PDF]

, 2017
Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. This hydration reaction is poorly understood at the nanoscale.
Cuesta-García, Ana María, Dapiaggi, Monica, García-Aranda, Miguel Ángel, Gómez-de-la-Torre, María de los Ángeles, Londono-Zuluaga, Diana, Sanfélix, Susana G., Santacruz-Cruz, María Isabel, Vallcorba, Oriol, Zea-Garcia, Jesus D.   +8 more
core   +4 more sources

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm, Black L., Black L., Black L., Black L., Chan C. F., Churakov S. V., Hejny C., K. Garbev, L. Black, Liebau F., Low N. M. P., Mamedov K. S., McWhinney H. G., Mekki A., Mollah M. Y. A., Qian G. R., Regourd M., Saito F., Thomassin J. H.   +19 more
core   +1 more source

Quantitative study of hydration of C3S and C2S by thermal analysis. Evolution and composition of C-S-H gels formed [PDF]

, 2010
This research is part of a European project (namely, CODICE project), main objective of which is modelling, at a multi-scale, the evolution of the mechanical performance of non-degraded and degraded cementitious matrices.
A Fernández-Jiménez, AJ Allen, Ana Guerrero, Bruno Zanga, EE Pressler, Francisca Puertas, Fulvio Baroni, G Constantinides, G Constantinides, H Manzano, HFW Taylor, HFW Taylor, HM Jennings, HM Jennings, IG Richardson, IG Richardson, J Skibsted, JGM Jong de, JJ Thomas, Jorge S. Dolado, JS Dolado, K Fujii, L Cherem da Cunha, M Daimon, Marta Palacios, María Soledad Hernández, PD Tennis, RF Feldman, RF Feldman, RJ Kirkpatrick, S Bishnoi, S Goñi, Sara Goñi   +32 more
core   +3 more sources

Preparation of calcium silicate hydrate seeds by means of mechanochemical method and its effect on the early hydration of cement

Advances in Mechanical Engineering, 2019
Calcium silicate hydrate seeding is a promising accelerator for cement hydration. In this work, calcium silicate hydrate nanoparticles with various CaO/SiO 2 -ratios were prepared by means of mechanochemical approach.
Boyuan Wang, Wu Yao, Dietmar Stephan
doaj   +1 more source

Calcium silicates synthesised from industrial residues with the ability for CO2 sequestration [PDF]

, 2014
This work explored several synthesis routes to obtain calcium silicates from different calcium-rich and silica-rich industrial residues. Larnite, wollastonite and calcium silicate chloride were successfully synthesised with moderate heat treatments below
Esquivias Fedriani, Luis María, López, Antonio, Morales Flórez, Víctor, Moriña, Isabel, Santos, Alberto   +4 more
core   +1 more source

Investigation of the Incompatibilities of Cement and Superplasticizers and Their Influence on the Rheological Behavior [PDF]

, 2020
The rheological behavior of cement paste and the improvement of its flowability takes center stage in many research projects. An improved flowability can be achieved by the addition of superplasticizers (SP), such as polycarboxylate ethers (PCE).
Jakob, Cordula, Jansen, Daniel, Neubauer, Jürgen, Pott, Ursula, Stephan, Dietmar   +4 more
core   +2 more sources

Atomic and nano-scale characterization of a 50-year-old hydrated C3S paste [PDF]

, 2015
This paper investigates the atomic and nano-scale structures of a 50-year-old hydrated alite paste. Imaged by TEM, the outer product C-S-H fibers are composed of particles that are 1.5-2 nm thick and several tens of nanometers long.
Bae, S, Emwas, AH, Geng, G, Hernández-Cruz, D, Kilcoyne, DA, Monteiro, PJM, Taylor, R   +6 more
core   +1 more source

Apatite bone cement reinforced with calcium silicate fibers

Journal of Materials Science: Materials in Medicine, 2014
Several research efforts have been made in the attempt to reinforce calcium phosphate cements (CPCs) with polymeric and carbon fibers. Due to their low compatibility with the cement matrix, results were not satisfactory. In this context, calcium silicate fibers (CaSiO3) may be an alternative material to overcome the main drawback of reinforced CPCs ...
Motisuke, Mariana UNIFESP, Santos, Veronica R. UNIFESP, Bazanini, Naiana C. UNIFESP, Bertran, Celso A.   +3 more
openaire   +3 more sources

Evaluation of Shear Bond Strength and Marginal Adaptation of Calcium Silicate-based Cements and Premixed Bioceramics When Restored with Glass Ionomer Cement: An In Vitro Study [PDF]

Journal of South Asian Association of Pediatric Dentistry
Aims and background: In primary molars, pulpotomy is recommended when the radicular pulp tissue is either healthy or capable of healing. A biologically compatible pulpotomy agent is used to seal the radicular pulp.
Megha C Patel, Malayka H Shah, Disha Makwani, Khushi Rathod, Sarchi Patel, Prachi Patel   +5 more
doaj   +1 more source