Resource Type

Journal Article 28

Year

2023 6

2022 3

2021 4

2020 1

2019 2

2017 3

2016 1

2015 1

2014 1

2012 1

2011 2

2006 1

2000 1

open ︾

Keywords

Geopolymer 2

alkali-silica reaction (ASR) 2

concrete 2

mechanical properties 2

sodium hydroxide 2

ASR 1

Acid or alkali modified cinder 1

Alkali base solutions 1

Alkali elements 1

Alkali fusion 1

Alkali-activated materials 1

Alkali-activated slag concrete 1

Alkali–silica reaction 1

Anpeng Alkali Mine 1

Architecturally significant requirement (ASR) 1

Architecture trade-off analysis method (ATAM) 1

Automobile shredder residue (ASR) 1

CO2 capture 1

Coal fly ash 1

open ︾

Search scope:

排序： Display mode:

Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 1-18 doi: 10.1007/s11709-012-0141-2

Abstract: This paper presents a comprehensive review of modeling of alkali-silica reaction (ASR) in concrete.The concept of ASR and the mechanism of expansion are first outlined, and the state-of-the-art of modelingfor ASR, the focus of the paper, is then presented in detail.The modeling includes theoretical approaches, meso- and macroscopic models for ASR analysis.Mesoscopic models have attempted to explain the mechanism of mechanical deterioration of ASR-affected

Keywords： alkali-silica reaction (ASR)     modeling     concrete     mesoscopic     macroscopic    

HTML PDF Collect

Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete Article

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Engineering 2019, Volume 5, Issue 6,   Pages 1139-1154 doi: 10.1016/j.eng.2019.02.007

Abstract:

The alkali–silica reaction (ASR) is one of the major long-term deterioration mechanisms occurringASR is a chemical reaction between the silica existing inside the aggregate pieces and the alkali ionsThis chemical reaction produces ASR gel, which imbibes additional water, leading to gel swelling.and validated the resulting model, entitled ASR-LDPM, against several experimental data sets., while ASR-LDPM is utilized as the mesoscale model.

Keywords： Multiscale homogenization     Representative volume element     Alkali–silica reaction     Lattice discrete particle    

HTML PDF Collect

A general framework for modeling long-term behavior of earth and concrete dams

Bernhard A. SCHREFLER, Francesco PESAVENTO, Lorenzo SANAVIA, Giuseppe SCIUME, Stefano SECCHI, Luciano SIMONI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 41-52 doi: 10.1007/s11709-010-0070-x

Abstract: They range from hydraulic fracturing to alkali-silica reaction (ASR) and to repair work in concrete dams

Keywords： dams     concrete dams     multiphase porous materials     coupled problems     hydraulic fracture     concrete hydration     alkali-silicareaction (ASR)     finite element method    

HTML PDF Collect

Layered alkali titanates (ATiO): possible uses for energy/environment issues

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 631-655 doi: 10.1007/s11708-021-0776-6

Abstract: Uses of layered alkali titanates (A2TinO2nalkali titanates of various structural types and compositions are regarded as a class of nanostructuredcompared with commonly known titanium dioxides (anatase and rutile), materials design based on layered alkaliThe ion exchange ability of layered alkali titanate is used for the collection of metal ions from waterThese possible materials design made layered alkali titanates promising for energy (including catalysis

Keywords： layered alkali titanates     photocatalysis     hydrogen evdution     metal ions collection    

HTML PDF Collect

Alkali-silica Reaction and Alkali-carbonate Reaction

Tang Mingshu

Strategic Study of CAE 2000, Volume 2, Issue 1,   Pages 34-40

Abstract:

Alkali-aggregate reaction (AAR) may be divided into two kinds： alkali-silica reaction (ASR) and alkali-carbonateThe chemical reaction between the reactive aggregate and alkali causes serious expansion and resultsIn this paper, the characteristics and differences between ASR and ACR were discussed in detail fromFor ASR, the prime essential is the crystallinity of silica, which causes the rocks to display alkaliFinally the method for distinguishing ASR and ACR was introduced.

Keywords： alkali     aggregate     silica     carbonate     concrete deterioration     mechanism    

HTML PDF Collect

The development of ultralightweight expanded perlite-based thermal insulation panel using alkali activator

Damla Nur ÇELİK; Gökhan DURMUŞ

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1486-1499 doi: 10.1007/s11709-022-0881-6

Abstract: In addition, an alkali activator solution was used as a binder in the mixtures.

Keywords： expanded perlite     alkali activator     thermal insulation panel     thermal conductivity    

HTML PDF Collect

Utilization of alkali-activated copper slag as binder in concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 773-780 doi: 10.1007/s11709-021-0722-z

Abstract: This study was focused on developing concrete using alkali-activated copper slag (AACS) as a binder.The properties of alkali-activated copper slag concrete (AACSC) were compared with portland cement concretehydration products of AACSC were not identified in XRD patterns, whereas, in FTIR spectra of AACSC some alkali-activated

Keywords： binder     concrete     mechanical properties     mineralogy     workability    

HTML PDF Collect

Hydration Characteristics and Microstructure of Alkali-Activated Slag Concrete: A Review Review

Qiang Fu,Mengxin Bu,Zhaorui Zhang,Wenrui Xu,Qiang Yuan,Ditao Niu

Engineering 2023, Volume 20, Issue 1,   Pages 162-179 doi: 10.1016/j.eng.2021.07.026

Abstract:

Alkali-activated slag concrete (AASC) is a new green building material.The influences of the slag composition, the type and dosage of the alkali activator, and the curing conditions

Keywords： Alkali-activated slag concrete     hydration characteristics     pore structure     interfacial transition zone     Microstructure    

HTML PDF Collect

The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Engineering doi: 10.1016/j.eng.2023.09.014

HTML PDF Collect

Application of Underground Fracture Connection Monitoring in Anpeng Alkali Mine

Qi Tiexin,Liu Jianzhong,Qi Guilin,Dong Feng

Strategic Study of CAE 2006, Volume 8, Issue 7,   Pages 63-67

Abstract: methodologies, and results of monitoring primary fractures connecting to the injection well in Anpeng Alkaliinjection well at a depth of over 1 000 meters, which makes it possible for continuous water injection and alkalisolution production in Anpeng Alkali Mine.

Keywords： Anpeng Alkali Mine     wet process for alkali extraction     underground fracture connection     leveling survey    

HTML PDF Collect

Operando modeling and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 380-389 doi: 10.1007/s11708-023-0872-x

Abstract: Alkali carbonate-based sorbents (ACSs), including Na2CO3- and K2CO

Keywords： CO2 capture     carbonation     theoretical modeling     operando techniques     reaction visualization    

HTML PDF Collect

Privacy and security federated reference architecture for Internet of Things Position Paper

Musab KAMAL, Imran RASHID, Waseem IQBAL, Muhammad Haroon SIDDIQUI, Sohaib KHAN, Ijaz AHMAD,waseem.iqbal@mcs.edu.pk

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4,   Pages 481-508 doi: 10.1631/FITEE.2200368

Abstract: Physical objects are getting connected to the Internet at an exceptional rate, making the idea of the a reality. The IoT ecosystem is evident everywhere in the form of smart homes, health care systems, wearables, connected vehicles, and industries. This has given rise to risks associated with the privacy and security of systems. Security issues and cyber attacks on IoT devices may potentially hinder the growth of IoT products due to deficiencies in the architecture. To counter these issues, we need to implement privacy and security right from the building blocks of IoT. The IoT architecture has evolved over the years, improving the stack of architecture with new solutions such as scalability, management, interoperability, and extensibility. This emphasizes the need to standardize and organize the IoT reference architecture in federation with privacy and security concerns. In this study, we examine and analyze 12 existing IoT reference architectures to identify their shortcomings on the basis of the requirements addressed in the standards. We propose an architecture, the privacy-federated IoT security reference architecture (PF-IoT-SRA), which interprets all the involved privacy metrics and counters major threats and attacks in the IoT communication environment. It is a step toward the standardization of the domain architecture. We effectively validate our proposed reference architecture using the , an industry-recognized scenario-based approach.

Keywords： Architecturally significant requirement (ASR)     Architecture trade-off analysis method (ATAM)     Internet    

HTML PDF Collect

Alkali-thermal gasification and hydrogen generation potential of biomass

Alexander B. Koven, Shitang S. Tong, Ramin R. Farnood, Charles Q. Jia

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 369-378 doi: 10.1007/s11705-017-1662-y

Abstract: ., glucose, cellulose, xylan and lignin) into H -rich gas via catalyst-free, alkali-thermal gasificationIt was shown that alkali-thermal gasification follows , with carbonate being the solid product which

Keywords： hydrogen generation potential     biomass     lignocellulose     alkali-thermal gasification     sodium hydroxide    

HTML PDF Collect

Fate of proteins of waste activated sludge during thermal alkali pretreatment in terms of sludge protein

Xiaoli Song, Zhenghua Shi, Xiufen Li, Xinhua Wang, Yueping Ren

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1114-7

Abstract:

Maillard reaction between reducing sugars and amides happened during pretreatment.

Over 90 min of TAH at the optimal condition, 67.59% sludge proteins was solubilized.

15.84% soluble proteins broke down to materials with small molecular weight.

Keywords： Sludge flocs     Microbial cells     Hydrolysate     Protein breakdown     Melanoidin    

HTML PDF Collect

Effects of alkali treatment on mechanism of extrusion bonding of eucalyptus wood fiber

Peng Wanxi,Lin Zhi and Li Niancun

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 64-68

Abstract:

Eucalyptus wood fiber was prepared to investigate the effects of alkalithat hemi-cellulose and lignin were partly degraded during eucalyptus wood fiber were treated with alkali，these degraded substances could be copolymerized during hot-pressing，the influence of alkali (NaOH)

Keywords： eucalyptus wood fiber     alkali treatment     Fourier transform infrared spectroscopy (FTIR)     SEM    

HTML PDF Collect

Title Author Date Type Operation

Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Journal Article

Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Journal Article

A general framework for modeling long-term behavior of earth and concrete dams

Bernhard A. SCHREFLER, Francesco PESAVENTO, Lorenzo SANAVIA, Giuseppe SCIUME, Stefano SECCHI, Luciano SIMONI

Journal Article

Layered alkali titanates (ATiO): possible uses for energy/environment issues

Journal Article

Alkali-silica Reaction and Alkali-carbonate Reaction

Tang Mingshu

Journal Article

The development of ultralightweight expanded perlite-based thermal insulation panel using alkali activator

Damla Nur ÇELİK; Gökhan DURMUŞ

Journal Article

Utilization of alkali-activated copper slag as binder in concrete

Journal Article

Hydration Characteristics and Microstructure of Alkali-Activated Slag Concrete: A Review

Qiang Fu,Mengxin Bu,Zhaorui Zhang,Wenrui Xu,Qiang Yuan,Ditao Niu

Journal Article

The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Journal Article

Application of Underground Fracture Connection Monitoring in Anpeng Alkali Mine

Qi Tiexin,Liu Jianzhong,Qi Guilin,Dong Feng

Journal Article

Operando modeling and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based

Journal Article

Privacy and security federated reference architecture for Internet of Things

Musab KAMAL, Imran RASHID, Waseem IQBAL, Muhammad Haroon SIDDIQUI, Sohaib KHAN, Ijaz AHMAD,waseem.iqbal@mcs.edu.pk

Journal Article

Alkali-thermal gasification and hydrogen generation potential of biomass

Alexander B. Koven, Shitang S. Tong, Ramin R. Farnood, Charles Q. Jia

Journal Article

Fate of proteins of waste activated sludge during thermal alkali pretreatment in terms of sludge protein

Xiaoli Song, Zhenghua Shi, Xiufen Li, Xinhua Wang, Yueping Ren

Journal Article

Effects of alkali treatment on mechanism of extrusion bonding of eucalyptus wood fiber

Peng Wanxi,Lin Zhi and Li Niancun

Journal Article