Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Jo Dweck"'
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 5364-5377 (2020)
The incorpation of a high pozzolan content in cement systems enables an enhanced thermal stability. In an even harsh condition, where imposed deformations occur in addition to high temperatures, it is desirable that cementitious systems present high
Externí odkaz:
https://doaj.org/article/08159854efce4c869c590a482e192628
Publikováno v:
Materials Research, Vol 20, Iss suppl 2, Pp 743-747 (2018)
The influence of NaCl salt in the hydration of the Portland cement paste class G was studied using a Non Conventional Differential Thermal Analysis (NCDTA) on the first 24 hours of cement hydration. The mass of salt used corresponds to 0, 5, 10, 15 a
Externí odkaz:
https://doaj.org/article/09cde876ab8a42db804dee362ae2bd80
Publikováno v:
Materials Research, Vol 18, Iss suppl 2, Pp 291-296 (2015)
This work presents a study, which compares the early stages of hydration of a High Initial Strength and Sulphate Resistant Portland Cement (HIS SR PC) with those of Type II F Portland Cement (PC II), by Non-Conventional Differential Thermal Analysis
Externí odkaz:
https://doaj.org/article/dff6768647e349459f8bb02b1c15fb66
Autor:
Ana Carolina O. Santana, Erica F. Southgate, João Paulo B. G. Mendes, Jo Dweck, Eliana Mosse Alhadeff, Ninoska Isabel Bojorge Ramirez
Publikováno v:
Journal of Electrochemical Science and Engineering, Vol 4, Iss 4, Pp 165-175 (2014)
Nowadays there is an increasing demand to develop new and robust biosensors in order to detect low concentrations of different chemicals, in practical and small devices, giving fast and confident responses. The electrode material was a polyaniline-gr
Externí odkaz:
https://doaj.org/article/2ead04859e5048fba08145f5d6ee4e3a
Publikováno v:
Química Nova, Vol 31, Iss 5, Pp 1230-1236 (2008)
This work presents a study on the separation of Fe(III) and Ti(IV) from sulfuric acid leaching solutions of ilmenite (FeTiO3) using liquid-liquid extraction with D2EHPA in n-dodecane as extracting agent. The distribution coefficients (K D) of the ele
Externí odkaz:
https://doaj.org/article/240fcdb1041541a99fa40aa50aa03593
Autor:
Fabrício de Campos Vitorino, Michael Nazarkovsky, Arash Azadeh, Camila Martins, Bruno Menezes da Cunha Gomes, Jo Dweck, Romildo Dias Toledo Filho, Holmer Savastano
Publikováno v:
Cellulose. 30:1873-1893
Autor:
Jo Dweck, Bruna Luiza Ferreira Brito
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 147:6087-6097
The replacement of cement with supplementary cementitious materials has great potential for mitigating CO2 emissions, as it leads to a lesser clinker production. One of the materials that can be used as a precursor of pozzolanic material is the by-pr
Autor:
Jardel Pereira Gonçalves, Jo Dweck, Kuelson Randello Dantas Maciel, Josinorma Silva de Oliveira, Heloysa Martins Carvalho Andrade
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 147:2923-2934
This work investigates the influence of milling on the physical, chemical and mineralogical properties of a catalyst residue (Recat) after being reused in a second Fluid Catalytic Cracking process (FCC). The effect of milling this waste in a planetar
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 142:2049-2059
Biodiesel has been widely used as an alternative fuel in diesel engines. However, although its physicochemical properties make it a substitute for traditional diesel fuel, biodiesel is more susceptible to oxidation and degradation during storage than