نتایج جستجو برای: calcium silicate hydrates

تعداد نتایج: 178280  

Journal: :Journal of composites science 2023

Seashell powder (SSP) is a waste from aquatic life that generally available near the coastal region. Due to its high calcium content, SSP can be utilized as supplementary cementitious binder. used sustainable binder replace ordinary Portland cement (OPC) and significantly reduce carbon footprint. The present study investigates effects of glass (WGP) on fresh, mechanical, microstructure properti...

Journal: :Journal of the American Ceramic Society 2022

This work studies the formation of calcium–silicate–hydrates (C–S–H) in lime mortars prepared with additions nano-Ca(OH)2 and nano-SiO2 at 23.3°C. Mineral identification was carried out by X-ray diffraction after 10, 30, 90, 120 days curing. The nanoscale study starts from generation amorphous phases until development crystalline phases. Observations binder mortar made transmission electron mic...

2011
Cecilia Persson Håkan Engqvist

Calcium silicate-based materials (also called MTA) are increasingly being used in endodontic applications. However, the handling properties of MTA are not optimal when it comes to injectability and cohesion. Premixing the cements using glycerol avoids these issues. However, there is a lack of data on the effect of common cement variables on important properties of premixed cements for endodonti...

2013
Maria Giovanna Gandolfi Francesco Siboni Antonella Polimeni Maurizio Bossù Francesco Riccitiello Sandro Rengo

Aim: Calcium silicate-based materials are hydraulic self-setting materials with physico-chemical properties suitable for endodontic surgery and good biological/clinical outcomes. The study aim was to evaluate the bio-properties (biointeractivity and apatite-forming ability) and selected physical properties (porosity, water sorption, solubility, and setting time) of Biodentine, a tricalcium sili...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1993

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1960

2013
Meiyun Zhang Shunxi Song Jian Wang Junmin Sun Jack Z. Li Yonghao Ni Xiaofen Wei

A novel calcium silicate filler can be made from fly ash. This new filler, known as fly ash based calcium silicate (FACS), has a highly porous surface structure, high brightness (91% ISO), low bulk density (0.31 g/cm 3 ), and high specific surface area (121 m 2 /g). In this paper, its potential application as a paper filler was studied and its effect on drainage, retention, and paper properties...

2016
MM Radwan Engy M Kataia Maram E Khallaf

Tricalcium-silicate and Tetracalcium-phosphate were prepared from ultra-pure chemical compounds via solid-state reaction at 1450 o C and 1500 o C respectively in an attempt to formulate a root end filling cement. Materials were investigated by X-ray diffraction and Transmission-electron microscope. The formulated cement comprises 60 wt% Tricalcium-silicate, 20 wt% Tetracalcium-phosphate and 20 ...

Journal: :Brazilian oral research 2013
Marina Angélica Marciano Carlos Estrela Rafael Francisco Lia Mondelli Ronald Ordinola-Zapata Marco Antonio Hungaro Duarte

The aim of the study was to determine if the increase in radiopacity provided by bismuth oxide is related to the color alteration of calcium silicate-based cement. Calcium silicate cement (CSC) was mixed with 0%, 15%, 20%, 30% and 50% of bismuth oxide (BO), determined by weight. Mineral trioxide aggregate (MTA) was the control group. The radiopacity test was performed according to ISO 6876/2001...

Journal: :Brazilian oral research 2016
Ana Lívia Gomes-Cornélio Elisandra Márcia Rodrigues Leticia Boldrin Mestieri Thaís de Oliveira Rodrigues Sanzovo Falcoski Christiane Pienna Soares Juliane Maria Guerreiro-Tanomaru Carlos Rossa Mário Tanomaru

Several calcium silicate-based biomaterials have been developed in recent years, in addition to Mineral Trioxide Aggregate (MTA). The aim of this study was to evaluate the cytotoxicity, genotoxicity and apoptosis/necrosis in human osteoblast cells (SAOS-2) of pure calcium silicate-based cements (CSC) and modified formulations: modified calcium silicate-based cements (CSCM) and three resin-based...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید