Search

Your search keyword '"Shi, Caijun"' showing total 19 results
Start Over Author "Shi, Caijun" Publisher elsevier
19 results on '"Shi, Caijun"'

2. List of contributors

Author

Adhikary, Suman Kumar, primary, Agrela, Francisco, additional, Almagro, Juan Francisco, additional, Benítez, Almudena, additional, Biligiri, Krishna Prapoorna, additional, Borrachero Rosado, María Victoria, additional, Bravo, Miguel, additional, Cabrera, Manuel, additional, Caneda-Martínez, Laura, additional, Cimentada, Ana, additional, Cristelo, Nuno, additional, Cruz-Yusta, Manuel, additional, de Brito, Jorge, additional, Duarte, António Pedro Carones, additional, Faleschini, Flora, additional, García, Ismael, additional, Garcia-Lodeiro, Inês, additional, Gayarre, Fernando L., additional, González Suárez, Jesús, additional, González-Fonteboa, Belén, additional, Guo, Yipu, additional, Illikainen, Mirja, additional, Kassim, Dany, additional, Lamaa, Ghandy, additional, Li, Wengui, additional, Luo, Zhiyu, additional, Monzó, José, additional, Moreno, M. Sánchez, additional, Nunes, Vitor A., additional, Ozel, Behlul Furkan, additional, Payá, Jordi, additional, Pérez, Carlos López-Colina, additional, Perumal, Priyadharshini, additional, Puertas, Francisca, additional, Rivera, Jhonathan, additional, Rosales, Julia, additional, Sainz-Aja, José, additional, Sánchez, Luis, additional, Seara-Paz, Sindy, additional, Serrano Lopez, Miguel A., additional, Shi, Caijun, additional, Silva, Bruna A., additional, Silva, Rui V., additional, Singh, Avishreshth, additional, Soriano, Lourdes, additional, Tashima, Mauro M., additional, Thomas, Carlos, additional, Torres-Carrasco, Manuel, additional, Trento, Daniel, additional, Trujillo López, Lina M., additional, Wang, Xiaonan, additional, Wu, Victor, additional, Yildirim, Gurkan, additional, Zanini, Mariano Angelo, additional, Zhang, Xuanhan, additional, Zhang, Xuanrui, additional, and Zhao, Caiyu, additional

Published
2024
Full Text
View/download PDF

7. Contributors

Author

Farzadnia, Nima, primary, Heintzkill, Reed T., additional, Jin, Qingxu, additional, Khayat, Kamal H., additional, Kozhukhova, Marina I., additional, Long, Wu-Jian, additional, Ma, Hongyan, additional, Meng, Weina, additional, Shi, Caijun, additional, Sobolev, Konstantin, additional, and Wu, Zemei, additional

Published
2023
Full Text
View/download PDF

8. Do superplasticizers work the way we think? New insights from their effect on the percolation threshold of limestone pastes

Author

Sha, Shengnan, Mantellato, Sara, Weckwerth, Stefanie Anne, Zhang, Zhidong, Shi, Caijun, and Flatt, Robert J.

Subjects
Superplasticizers, Yield stress, Rheology, Limestone, Supplementary cementitious material, Yodel
Abstract

Superplasticizers are polymeric dispersants that play a major role in concrete technology. Despite their ubiquity and much research on their working mechanisms, many questions remain about the effects of their molecular structures on their working mechanism, in particular their ability to lower the yield stress of particulate suspensions. It is generally recognized that superplasticizers decrease attractive interparticle forces, thereby reducing or eliminating yield stress. It is also often assumed that changes in yield stress should be proportional to changes in interparticle forces. This paper takes a fresh look at this question, revisiting Yodel (YD) and modified shifting factor (MSF) models that not only incorporate interparticle forces, but also percolation thresholds. This leads us to conclude that a major impact of superplasticizers is to modify the percolation threshold in direct relation to their adsorption. ISSN:0008-8846

Published
2023

13. List of contributors

Author

Abdollahnejad, Zahra, primary, Ahmad, Shamsad, additional, Chakraborty, Sumit, additional, Esquivias, Luis, additional, Farzadnia, Nima, additional, Gopinath, Smitha, additional, He, Pingping, additional, Ji, Long, additional, Jo, Byung Wan, additional, Joshi, Sumit, additional, Li, Ning, additional, Ling, Tung-Chai, additional, Lu, Bao, additional, Mastali, Mohammad, additional, Mehra, Anurag, additional, Mo, Liwu, additional, Morales-Flórez, Victor, additional, Pacheco-Torgal, Fernando, additional, Poon, Chi S., additional, Reddy, Mondem S., additional, Santos, Alberto, additional, Shi, Caijun, additional, Tsang, Daniel C.W., additional, Unluer, Cise, additional, Wang, Lei, additional, Yu, Hai, additional, Zhang, Jian, additional, Zhang, Zuhua, additional, and Zheng, Jianlan, additional

Published
2018
Full Text
View/download PDF

15. List of contributors

Author

Akasaki, Jorge L., primary, Akers, Stephen A.S., additional, Ardanuy, Mònica, additional, Ariani Fontes, Cintia M., additional, Arsène, Marie-Ange, additional, Barros, Joaquim A.O., additional, Bernal, Susan A., additional, Bilba, Ketty, additional, Blanco, Ángeles, additional, Borrachero, Maria Victoria, additional, Claramunt, Josep, additional, Criado, Maria, additional, De Belie, Nele, additional, Sánchez-de-Rojas-Gómez, Maria Isabel, additional, Delvasto, Silvio, additional, Denzin Tonoli, Gustavo H., additional, Fangueiro, Raul, additional, Farrapo, Camila L., additional, Feitosa Lima, José M., additional, Fuente, Elena, additional, Gasca-Tirado, José Ramón, additional, Ghavami, Khosrow, additional, Gordillo, Marisol, additional, Guo, Ming-Zhi, additional, Jarabo, Rocío, additional, Kaufmann, Josef, additional, Ke, Xinyuan, additional, Leung, Ramsey, additional, Lopes Lima, Paulo R., additional, Manzano-Ramírez, Alejandro, additional, Medina-Martínez, César, additional, Mendes, Juliana F., additional, Mendes, Lourival M., additional, Mendes, Rafael F., additional, Monzó, José, additional, Murillo, Luz M., additional, Negro, Carlos, additional, Olorunnisola, Abel O., additional, Onésippe, Cristel, additional, Panesar, Daman, additional, Panthapulakkal, Suhara, additional, Parveen, Shama, additional, Payá, Jordi, additional, Provis, John L., additional, Rana, Sohel, additional, Reyes-Araiza, José Luis, additional, Frías-Rojas, Moisés, additional, Roque, Alex B., additional, Sain, Mohini, additional, Santos, Sérgio Francisco, additional, Savastano Junior, Holmer, additional, Schwitter, Eugen, additional, Shi, Caijun, additional, Soriano, Lourdes, additional, Tashima, Mauro M., additional, Teixeira, Ronaldo Soares, additional, Tu, Zhenjun, additional, Van den Heede, Philip, additional, Vilela, Alan P., additional, Villar-Cociña, Ernesto, additional, and Wang, Dehui, additional

Published
2017
Full Text
View/download PDF

16. Advances in understanding alkali-activated materials

Author

European Research Council, National Natural Science Foundation of China, Provis, John L., Palomo, Ángel, Shi, Caijun, European Research Council, National Natural Science Foundation of China, Provis, John L., Palomo, Ángel, and Shi, Caijun

Abstract

Alkali activation is a highly active and rapidly developing field of activity in the global research and development community. Commercial-scale deployment of alkali-activated cements and concretes is now proceeding rapidly in multiple nations. This paper reviews the key developments in alkali-activated materials since 2011, with a particular focus on advances in characterisation techniques and structural understanding, binder precursors and activation approaches, durability testing and design, processing, and sustainability. The scientific and engineering developments described in this paper have underpinned the on-going scale-up activities. We also identify important needs for future research and development to support the optimal and appropriate utilisation of alkali activated materials as a component of a sustainable future construction materials industry.

Published
2015

17. In-situ conversion of geopolymer into novel floral magnetic sodalite microspheres for efficient removal of Cd(II) from water.

Author

Su Q, Wei X, Yang G, Ou Z, Zhou Z, Huang R, and Shi C

Abstract

In the present work, a novel, floral-like, magnetic sodalite microsphere (SODM) was synthesized in situ by using fly ash (FA) and metakaolin (MK) as raw materials and was used to remove Cd(II) from water. Its magnetism can solve the problems of adsorbent recovery and possible secondary pollution. During the static adsorption, SODM shows a maximum adsorption capacity of 245.17 mg/g. The adsorption of Cd(II) on the SODM surface is spontaneous, exothermic, and physicochemical adsorption, which was evaluated by thermodynamics, kinetics, and isotherm studies. During dynamic adsorption, SODM shows a maximum adsorption capacity of 342.74 mg/g in the simulated solution prepared by the deionized water, compared to 215.88 mg/g in the simulated solution prepared using Xiangsi Lake water from Guangxi Minzu University. At 0.5 g SODM dosage in the dynamic adsorption, the adsorption capacity could rise to 632.81 mg/g. These results demonstrated the excellent Cd (II) adsorption performance of the SODM. The adsorption of cadmium on the SODM surface includes the synergistic effects of electrostatic attraction, ion exchange, and surface coordination reaction. Besides, the SODM shows good regeneration performance in both the deionized water and Xiangsi Lake water. The present study explores SODM as an adsorbent for the Cd (II) removal from wastewater and unbolts the industrial applicability of the SODM in the field of wastewater purification., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)

Published
2023
Full Text
View/download PDF

18. Influence of interface conditions on the response of transversely isotropic multi-layered medium by impact load.

Author

Liu N, Yan K, Shi C, and You L

Subjects
Algorithms, Anisotropy, Biomechanical Phenomena, Finite Element Analysis, Fourier Analysis, Models, Biological, Pressure, Software, Elasticity, Materials Testing methods, Stress, Mechanical
Abstract

Multi-layered media are one of the most common phenomena in natural or artificial surroundings, and it is considered as a good candidates for biomedical applications. The transversely isotropic characteristic of materials have been widely recognized in elastic multi-layered media. Furthermore, interface conditions between transversely isotropic elastic multi-layered medium layers plays an important role in the medium's performance. Despite many numerical approaches in these analyses, very few theoretical methods are available in dealing with these two important issues. This study presents a method to compute the response of transversely isotropic elastic multi-layered medium subjected to the impact load, i.e. falling weight deflectometer load (FWD) load, when interfacial conditions are considered. Details of the mathematical derivation, implementation and verification of the proposed analytical solution are presented. The absence of positive exponential functions in the solution leads to a considerable improvement in computation efficiency and stability. Subsequent numerical results demonstrate that both transverse isotropy and interface conditions could substantially contribute to the responses of the elastic multi-layered medium., (Copyright © 2017 Elsevier Ltd. All rights reserved.)

Published
2018
Full Text
View/download PDF

19. Stabilization/solidification of hazardous and radioactive wastes with alkali-activated cements.

Author

Shi C and Fernández-Jiménez A

Subjects
Alkalies chemistry, Construction Materials, Hazardous Substances, Radioactive Waste, Waste Management methods, Water Pollutants, Radioactive chemistry
Abstract

This paper reviews progresses on the use of alkali-activated cements for stabilization/solidification of hazardous and radioactive wastes. Alkali-activated cements consist of an alkaline activator and cementing components, such as blast furnace slag, coal fly ash, phosphorus slag, steel slag, metakaolin, etc., or a combination of two or more of them. Properly designed alkali-activated cements can exhibit both higher early and later strengths than conventional portland cement. The main hydration product of alkali-activated cements is calcium silicate hydrate (CSH) with low Ca/Si ratios or aluminosilicate gel at room temperature; CSH, tobmorite, xonotlite and/or zeolites under hydrothermal condition, no metastable crystalline compounds such as Ca(OH)(2) and calcium sulphoaluminates exist. Alkali-activated cements also exhibit excellent resistance to corrosive environments. The leachability of contaminants from alkali-activated cement stabilized hazardous and radioactive wastes is lower than that from hardened portland cement stabilized wastes. From all these aspects, it is concluded that alkali-activated cements are better matrix for solidification/stabilization of hazardous and radioactive wastes than Portland cement.

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results