Results 91 to 100 of about 20,119 (257)

The influence of different radiopacifying agents on hermetical sealing ability of calcium silicate and calcium aluminate dental cements [PDF]

open access: yesScience of Sintering
This study presents technological process for obtaining strontium enriched calcium silicate based dental ceramics and testing their microstructural and chemical properties. In brief, the influence of different radiopacifiers on microstructural properties
Ćetković Dejan   +9 more
doaj   +1 more source

Modelling acid attack of oilwell cement exposed to carbonated brine: effect of specimen geometry on experimental results [PDF]

open access: yes, 2019
In recent years, the authors and co-workers have developed a diffusion-reaction model for the degradation process of oilwell cements exposed to carbonated brines in the context of CO2 capture and storage in abandoned oil reservoirs.
Barandiarán Villegas, Lucía Belén   +3 more
core   +1 more source

Zeolita, estudio de aptitud como una puzolana natural aplicada a hormigón estructural [PDF]

open access: yes, 2015
Nowadays, concrete is one of the most widely used construction materials due to its low price, appropriate mechanic characteristics and durability. Also, due to its ease to adopt diverse forms and sizes (Najimi et al., 2012).
Locati, Francisco   +4 more
core   +2 more sources

Advanced Functional Materials for Marine Energy Utilization

open access: yesInterdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu   +7 more
wiley   +1 more source

Raman spectroscopic study of the mineral xonotlite Ca6Si6O17(OH)2 - A component of plaster boards [PDF]

open access: yes, 2012
The mineral xonotlite Ca 6Si 6O 17(OH) 2 is a crystalline calcium silicate hydrate which is widely used in plaster boards and in many industrial applications. The structure of xonotlite is best described as having a dreierdoppelketten silicate structure,
Frost, Ray   +3 more
core   +2 more sources

Comparative efficacy of novel bioactive glass versus sodium fluoride toothpaste for dentin hypersensitivity

open access: yesJournal of Periodontology, EarlyView.
Abstract Background This first‐in‐human clinical study aimed to evaluate the safety and efficacy of a bioglass incorporated in a toothpaste, in reducing dentin hypersensitivity (DH) compared to a sodium fluoride (NaF) toothpaste over a 2‐week period. Methods A double‐blind, randomized, parallel‐arm, proof‐of‐concept clinical trial was conducted with 46
Hatice Hasturk   +6 more
wiley   +1 more source

Diametral tensile strength of novel fast-setting calcium silicate cement

open access: yesDental Materials Journal, 2016
Novel fast-setting calcium silicate cement with fluoride (CSC) has been developed for potential applications in tooth crown. The aim of this study was to test the diametral tensile strength (DTS) of different CSC compositions in humid condition on day1, 28, and 180.
Ranjkesh, Bahram   +3 more
openaire   +4 more sources

Marginal microleakage of newly synthesized nanostructured biomaterials based on active calcium silicate systems and hydroxyapatite [PDF]

open access: yesStomatološki glasnik Srbije, 2015
Introduction Calcium silicate cements can be successfully used for the treatment of root perforations due to their exceptional biological and sealing properties.
Petrović Violeta   +4 more
doaj  

The Effects of Prehydration on Cement Performance

open access: yes, 2010
This study investigated the effects of cement prehydration on cement’s engineering properties. Anhydrous cement was exposed over a saturated KCl solution to maintain 85% RH, for 7 and 28 days.
Black, L   +3 more
core  

Determination of the degree of reaction of fly ash in blended cement pastes [PDF]

open access: yes, 2015
This paper gives a review over methods to determine the degree of reaction for supplementary cementitious materials (SCMs) with focus on Portland cement - fly ash blends only and summarizes and highlights the most important findings which are detailed in
De Belie, Nele   +7 more
core  

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