Cement: Portland Cement Type I with the addition of pozzolan
RAV5N2, Message from the Editor in Chief (May - August 2015)
... that the addition of carbon nanotubes increased strength of cement with fly ...research, the levels of 0.5% and 1% NTCs relative to the cement mass ...
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New cementitious materials based on alkali-activated fly ash: performance at high temperatures
... study of the mechanical performance at different temperatures of a commercial Portland cement, used as a control, and a new cementitious material made from an 8M-NaOH activated fly ash ...
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Chemical and physical-mechanical characterizations of cement with the addition of limestone filer in Venezuela
... Os cimentos com adições (ou compostos) são misturas de clínquer de cimento Portland, sulfato de cálcio (gesso) e adições. Estes cimentos podem ser produzidos através da moagem conjunta destes componentes ou pela ...
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Chemical and physical-mechanical characterizations of cement with the addition of limestone filer in Venezuela
... results of nine (9) samples of each type of tested cement obtained through the determination of the initial setting time and final setting time of the ...
13
Reduction of the calcium leaching rate of cement paste by addition of silica nanoparticles
... seize the validity of the silica nanoparticles as a calcium leaching reducing addition, several samples had to be made and ...Ordinary Type 1 52.5R Portland cement and a ...
7
Assessment of Sustainability of Low Carbon Cement in Cuba Cement Pilot Production and Prospective Case
... in cement and concrete receive at the moment great interest due to economic and ecological aspects ...However, the use of SCMs is currently limited as a result of the reduction ...
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Chemical and physical-mechanical characterizations of cement with the addition of limestone filer in Venezuela
... cementos Portland con Adiciones CPCA en estudio, superan el mínimo establecido según la Norma COVENIN 3134:2004, sin exceder a valores de finura inadecuados (> 4000 cm 2 ...
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Surface treatment with silicon-based nanoparticles induced during curing: Effect on durability of portland cement based materials
... control of the temperature and the movement of moisture from the surface to the inside of the ...where the RCS usually lost moisture by evaporation, bleeding ...
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Influence of cement properties in the reaction rate and mechanical behavior of concrete with high fl y ash content
... studies the use of FA as a partial substitute of the cement in concretes of different workability (dry and wet) and the influence in the reactivity of ...
7
Temperature effect on performance of Portland cement versus advanced hybrid cements and alkali-Fly ash cement
... in the medium of elevated Ca and Si contents from OPC together with a greater initial contribution of Si and Al from the SCMs favours the precipitation of different ...
268
Compression resistance of concretes with blast furnace slag. Re-visited state-of-the-art
... amount of water for the mixture by 1% to 10%, depending on the amount of ...amount of tap without it having adverse effects on the concrete, but it also tends to diminish ...
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Colorimetry of modified clays with mineral and organic additions
... objective of this investigation was to quantify the colorimetric values of clay with different types of ...on the color of clay with different addition ...
15
Rietveld Quantitative Phase Analysis of OPC Clinkers, Cements and Hydration Products
... OPCs, the main unstable phase is free lime that is hydrated to portlandite and later carbonated to calcite within days under laboratory atmosphere (Fullmann and Walenta ...Therefore, the flat-surface pastes ...
41
Ceramic tiles waste as replacement material in Portland cement
... using Portland cement (PC) type CEM I 42·5R as the cementitious material and replacing it with different proportions of TCW (15%, 25%, 35% and 50% by ...purpose, ...
14
Analyzing the dispersion of carbon nanotubes solution for use in Portland cement concrete
... them, the shear forces generated by ultrasound outweigh the attraction forces between the nanotube particles, being able to separate ...application of ultrasonic energy and the use ...
17
Es el agregado de trixido mineral una biocermica?
... Characterization of Biodentine shows material to be composed of tricalcium silicate, which replaces the Portland cement in MTA, zirconium oxide replacing the bismuth oxide and a ...
5
Evaluación de la Arcilla Calcina de pontezuela como aditivo extendedor en lechadas de cemento Portland
... Debido al creciente desarrollo de la industria petrolera en nuestro país, existe la necesidad de contar con aditivos especiales de producción nacional para ser usados en la cementación de pozos de petróleo, que ...
64
Modelling hydration process of cement nanoparticles by using an agent-based molecular formation algorithm.
... on the Stroeven’s work [10], which simulates the granular structure of cement at the microlevel as a partial distribution of spherical particles (anhydrous cement) diluted ...
6
Analyzing the dispersion of carbon nanotubes solution for use in Portland cement concrete
... La adición de nanotubos de carbono en compuestos de Cemento es un tema que ha sido estudiado por varias universidades brasileñas e internacionales y se justifica ya que algunas investigaciones, comprueban su buen ...
17
Analyzing the dispersion of carbon nanotubes solution for use in Portland cement concrete
... “Application of AHP method for ranking of alternative treatment of solid waste” (Aplicação do método de AHP para a hierarquização das alternativas de tratamento de resíduos sólidos ...
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