Effects of hydroxyethyl methyl cellulose ether on the hydration and compressive strength of calcium aluminate cement
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-019-08820-6
Abstract: Aluminate containing phases such as tricalcium aluminate (C 3 A) and dodecacalcium heptaaluminate (C 12 A 7 ) play a key role in the reaction between Portland cement and cellulose ether. In order to simplify… read more here.
Keywords: cellulose ether; aluminate; cac; cement ... See more keywords
Structural Changes in Refractory Calcium Aluminate Cement Concrete
Sign Up to like & getrecommendations! Published in 2018 at "Refractories and Industrial Ceramics"
DOI: 10.1007/s11148-018-0197-1
Abstract: The influence of both organic and inorganic additives to calcium aluminate cement on the processes of hydration and structure formation of concrete both at normal and elevated temperatures is investigated here. The results of investigating… read more here.
Keywords: structural changes; aluminate cement; calcium aluminate;
A Multilayer Model for Alumina Inclusion Transformation by Calcium in the Ladle Furnace
Sign Up to like & getrecommendations! Published in 2017 at "Metallurgical and Materials Transactions B"
DOI: 10.1007/s11663-017-1120-8
Abstract: Calcium wire injection is widely used for modification of solid alumina inclusions to liquid or partially liquid calcium aluminate. In the present work, a multilayer growth model is proposed for modification of alumina inclusions. Diffusion… read more here.
Keywords: inclusion; transformation calcium; model; calcium ... See more keywords
Rapid Identification of Calcium Aluminate Inclusions in Steels Using Cathodoluminescence Analysis
Sign Up to like & getrecommendations! Published in 2018 at "Metallurgical and Materials Transactions B"
DOI: 10.1007/s11663-018-1362-0
Abstract: We propose a method to identify calcium aluminate inclusions in calcium-treated aluminum-killed steels (Ca12Al14O33, CaAl4O7, CaAl12O19, and Al2O3) using cathodoluminescence (CL) analysis. Such inclusions result in nozzle clogging and melting of the stopper rod during… read more here.
Keywords: using cathodoluminescence; cathodoluminescence analysis; calcium; aluminate inclusions ... See more keywords
Tailoring the Properties of Calcium Aluminate Macro-Defect-Free Cements: From Brittle to Ductile Behavior
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-019-04430-3
Abstract: Cementitious macro-defect-free (MDF) materials can be obtained processing a mixture of a water-soluble polymer, namely polyvinyl alcohol (PVA) and the calcium aluminate cement. Based on process techniques typical of plastics, the MDF products can be… read more here.
Keywords: brittle ductile; macro defect; defect free; water ... See more keywords
Analysis of thermodynamic data of calcium aluminate monocarbonate hydrate
Sign Up to like & getrecommendations! Published in 2019 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2018.10.012
Abstract: Abstract Some thermodynamic properties of calcium aluminate monocarbonate hydrate (3CaO⋅Al2O3⋅CaCO3⋅10.7H2O), a typical hydration product of cement were determined in this study. This includes enthalpy ΔfH° = −8166.4 ± 7.7 kJ/mol, standard entropy S° = 652.4 ± 2.2 J/(mol⋅K) and heat capacity Cp° = 716.8 ± 3.6 J/(mol⋅K) at 298.15 K. The… read more here.
Keywords: analysis thermodynamic; calcium aluminate; monocarbonate hydrate; aluminate monocarbonate ... See more keywords
NOx sequestration by calcium aluminate cementitious materials
Sign Up to like & getrecommendations! Published in 2021 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2021.106381
Abstract: Abstract This study quantifies NOx uptake efficiency and explores NOx binding mechanisms in calcium aluminate cementitious (CAC) materials. Comparison between unmodified and TiO2-modified CAC separates intrinsic NOx binding mechanisms from those related to photocatalysis. Attributed… read more here.
Keywords: nox uptake; calcium aluminate; nox binding; nox sequestration ... See more keywords
The crystal structure of a new calcium aluminate phase containing formate
Sign Up to like & getrecommendations! Published in 2021 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2021.106490
Abstract: Abstract A new calcium aluminate phase containing formate ions was synthesized and its crystal structure determined. This new phase is indicated as M-phase and was firstly observed in Portland cement pastes hydrated in presence of… read more here.
Keywords: calcium aluminate; phase; crystal structure;
In vitro apatite-forming ability of calcium aluminate blends
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2017.05.026
Abstract: Abstract Calcium aluminate cement (CAC) blends show great potential as biomaterial when compared to commercial products used in odontology and orthopedics. Mixtures of CAC +4 wt% of different additives (alumina, zirconia, zinc oxide, tricalcium phosphate or… read more here.
Keywords: vitro apatite; apatite forming; calcium; ability ... See more keywords
The application of a combination of treated AMPS/IA copolymer and borax as the retarder of calcium aluminate phosphate cement
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.03.071
Abstract: Abstract The research objectives in this paper are designed to develop one new type of retarder for calcium aluminate phosphate cement (CAPC) to extend the thickening time. Results show that due to the influence of… read more here.
Keywords: retarder calcium; retarder; amps copolymer; treated amps ... See more keywords
Effects of sodium gluconate on early hydration and mortar performance of Portland cement-calcium aluminate cement-anhydrite binder
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.09.153
Abstract: Abstract Effects of sodium gluconate on early hydration of the Portland cement-calcium aluminate cement-anhydrite ( PC-CAC-C S ¯ ) ternary binder were investigated through isothermal calorimetric, X-ray diffraction analysis (XRD), differential scanning calorimeter analysis (DSC)… read more here.
Keywords: binder; cement; sodium gluconate; hydration ... See more keywords