Results 61 to 70 of about 3,590 (187)
Macromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.This study explores the tensile behavior of carbon nanotube (CNT)–reinforced calcium silicate hydrate using molecular dynamics simulations. Multi‐walled CNTs demonstrate superior performance over single‐walled CNTs, with notable improvements in elastic modulus and tensile strength when the CNT orientation aligns with the loading direction.
Egodawaththa Ralalage Kanishka Chandrathilaka +3 more
wiley +1 more source
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2010 Exchange between the SO42− ions in ettringite and borate is believed to occur during borate removal from wastewater by the Ca(OH)2–Al2(SO4)3 addition method. To investigate borate uptake by ettringite, we synthesized ettringite in the presence of H3BO3 and prepared suspensions of ettringite in H3BO3 solution.
Hiraga, Yuki, Shigemoto, Naoya
openaire +1 more source
Materiales de Construccion, 2008 In this first part of the study, the results obtained in prior research with XRD and SEM, as well as the Le Chatelier-Ansttet test were confirmed with the ASTM C 452-68 test. To this end, 20%, 30% and 40% metakaolin (MK) was added to ten Portland cements,
R. Talero
doaj +1 more source
Mechanistic Insights into a Sustainable Mechanochemical Synthesis of Ettringite
ChemistryOpen, 2019 Mechanochemistry offers an environmentally benign and facile synthesis method for a variety of cement paste constituents. In addition, these methods can be used to selectively tune the properties of cement components.
Dr. Julia Stroh +4 more
doaj +1 more source
A Modular Reactor for Thermochemical Energy Storage Examination of Ettringite-Based Materials
Proceedings, 2019 More attention on renewable energy has been attracted after the achievement of Paris Agreement against climate change. Solar-based technology is supposed to be one of the most promising green energy technologies for residential buildings since its wide ...
Bao Chen +5 more
doaj +1 more source
Materiales de Construccion, 2011 Several prior papers have shown that enough pozzolans can bring about rapid formation ettringite (from its Al2O3r-). It has likewise been found that the formation rate of this ettringite is higher than the of slower forming ettringite originating from ...
R. Talero
doaj +1 more source
On the durability of Portland limestone cement: Effect of pH on the thaumasite formation
HBRC Journal, 2018 The mechanism of thaumasite formation is studied in a solution of sodium silicate and ettringite stored for 12 months at 7 °C. After 7 months, the mix was carbonated by bubbling CO2 gas and the pH decreased from 11 to 9.5; at the 9th month the pH was ...
Hanaa Y. Ghorab +3 more
doaj +1 more source
Chemical Engineering Transactions, 2015 The use of industrial wastes and by-products for making construction materials unequivocally gives a pronounced environment-friendly character to their manufacturing process.
A. Telesca +4 more
doaj +1 more source
Materiales de Construccion, 2014 The influence of citric acid on the hydration and strength development of a calcium sulphoaluminate cement was investigated. Cement pastes were prepared by mixing calcium sulphoaluminate (C4A3Ŝ) with 15, 20 and 25wt% of hemihydrate (CŜH0.5).
G. Velazco +4 more
doaj +1 more source
Structure and mineral composition of soil-cement with complex additive
Инженерно-строительный журнал, 2018 The effect of the polycarboxylate ether and the complex hydrophobic-plasticizing additive on the structure, phase and mineral composition of cement based on polymineral clay with content of relict minerals more than 85 % (52.49 % of quartz) was studied ...
Pavel Bulanov +2 more
doaj +1 more source