Results 51 to 60 of about 593,300 (377)

Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements [PDF]

open access: yes, 2017
The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order.
Cuesta-Garcia, Ana Maria   +6 more
core   +4 more sources

Study on properties and micro-properties of cement-sodium silicate double-liquid grouting material

open access: yesMeikuang Anquan
In order to explore the internal relationship between the microstructure and macroscopic properties of cement-sodium silicate double-liquid grouting materials, Portland cement was used as the base cementing material and sodium silicate as the admixture ...
Qiuli LI   +6 more
doaj   +1 more source

Properties of concrete modified by amorphous alumina silicate

open access: yesEngineering Structures and Technologies, 2015
Concrete is the most widely used building material obtained by hardening the mix made of coarse and fine aggregates, cement as the binding material, and water. The basic properties of concrete depend on the quality and properties of cement, w/c ratio and
Džigita Nagrockienė   +3 more
doaj   +1 more source

Recycling Of Auriferous Ore Flotation Tailings In Slag-alkaline Cement [PDF]

open access: yes, 2016
Research analysis aimed at stabilizing processes in industrial waste and other, similar hazardous ion containing materials, shows that these materials can be successfully stabilized, if they are bound as a mineral component in cement.
Gots, V. (Volodimir)   +3 more
core   +2 more sources

Hydrostatic compression and pressure phase transition of major Portland cement constituents – Insights via molecular dynamics modeling

open access: yesCement, 2022
The complex composite material cement paste (CP) is under high pressures in underwater applications and when impact loading occurs. The mechanical behavior of cement paste to hydrostatic compression results from mechanical deformations of each phase ...
Ingrid M. Padilla Espinosa   +2 more
doaj   +1 more source

Radiopacity evaluation of calcium silicate cements

open access: yesBMC Oral Health, 2023
Abstract Background The aim of this study was to compare the radiopacity of calcium silicate cements using a digital imaging method. Methods Four calcium silicate cements, NeoMTA 2, OrthoMTA, ProRoot MTA, and ...
Sen, Havva Gozde   +2 more
openaire   +5 more sources

In vitro cytotoxic evaluation of novel fast-setting calcium silicate cement compositions and dental materials using colorimetric methyl-thiazolyl-tetrazolium assay.

open access: yesJournal of Oral Science, 2018
A novel fast-setting calcium silicate cement with fluoride (CSC) has been developed for potential application in tooth crowns. This study compared the cytotoxicity of CSC compositions and a variety of dental materials.
B. Ranjkesh   +3 more
semanticscholar   +1 more source

Diffusion-reaction model for alkali-silica reaction in concrete [PDF]

open access: yes, 2013
A new diffusion-reaction model for the potentially deleterious Alkali-Silica Reaction (ASR) process in concrete is presented. The model involves three coupled diffusion processes, two in-goingand one out-goingfrom the aggregate viewpoint. Alkali (Na+ and
Carol, Ignacio   +2 more
core  

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Mechanical performance of glass-based geopolymer matrix composites reinforced with cellulose fibers [PDF]

open access: yes, 2018
Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10-13 M). Different formulations (fly ash and borosilicate in mixtures of 70-30 wt% and 30-70 wt%, respectively) and physical ...
Bernardo, Enrico   +2 more
core   +2 more sources

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