Molecular simulation of calcium-silicate-hydrate and its applications: A comprehensive review

Luo, Qi; Xiang, Yangsheng; Yang, Qingrui; Liang, Te; Xie, Yiping

doi:10.1016/j.conbuildmat.2023.134137

Cited by 15 publications

(2 citation statements)

References 166 publications

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“…Currently, NR technologies involve the recovery of both P and nitrogen (N) and there are cases in which micronutrients are also recovered from the input streams. As an example of crystallization as calcium silicate-hydrate, mono or diammonium phosphate can be recovered by precipitation with phosphoric acid by reacting with ammonia gas [7]. Other examples of process technologies can include microbial fuel cells [8] or any kind of hybrid systems of photoautotrophic and heterotrophic microalgal cultivation [9], nanofiltration (NF), multiple effect distillation (MED).…”

Section: Introductionmentioning

confidence: 99%

“…Regarding the recovered products, they should be part in the fertilisers market either by replacing an existing product or by complementing its performance. In some countries, struvite from NR practices, already has an EU 2003/2003 fertiliser validation and an end-of-waste status [7]. The market share for organic and mineral fertilisers could be complemented by a BBF with an organic (C) and mineral (N, P) base.…”

Section: Introductionmentioning

confidence: 99%

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Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

Athanasoulia,

Kyriazi,

Katsiolis

et al. 2023

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The majority of companies that operate desalination units produce significant quantities of brine, a hypersaline product whose disposal in the sea contributes to the degradation of local fauna and flora. The proposed process for the valorisation of seawater brine and recovery of high purity water consists of two precipitation steps for the recovery of Mg(OH)2 and CaCO3. After pH conditioning, the brine (without Mg2+ and Ca2+) is led to Nanofiltration unit for Na2SO4 separation from the NaCl - KCl rich stream. Monovalent salt stream is further concentrated by Multiple Effect Distillation evaporator and crystallizer and KCl is separated from NaCl by flotation using Sodium Dodecyl Sulfate as floating agent. The aforementioned micronutrients have readily been tested for their part in enhancing the agronomic performance of fertilising products, so they possess market potential to support local/national/European fertilisation purposes. Last but not least, such a nutrient recovery approach can ensure capital recovery within the expected time limitations of an investment and in some cases offset completely the treatment cost.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

Athanasoulia,

Kyriazi,

Katsiolis

et al. 2023

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Spent coffee grounds enhanced compressive strength of cement mortar: an optimization study

Yee,

Khong,

Tee

et al. 2024

Discov Appl Sci

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This paper presents an optimization study of spent coffee grounds (SCG) as cement mortar additives to enhance mortar strength. In recent years, sustainable materials have begun finding their way into cement mortar, with SCG being one. There is limited optimization study on the SCG addition in mortars, hence this study was performed to optimize the curing time and SCG addition in cement mortar to achieve the highest compressive strength through response surface methodology. Scanning Electron Microscopy (SEM) characterization was carried out on the SCG particles to identify their physical properties. An Energy Dispersive X-ray (EDX) analysis was carried out to identify its chemical properties. Simultaneously, a workability test, the flow table test, is conducted to study the effect of SCG on the flowability of the cement mortar mixes. The synergistic effect between SCG content in cement mortar mixes and the curing period was statistically studied and analyzed. Both parameters were then optimized to obtain the best performance mix of SCG in cement mortar. It was found that 1.1% SCG and a curing day of 68 days produced the highest compressive strength (33.4MPa) of cement mortar. The Response Surface Methodology (RSM)-optimized cement mortar mix presented at least a 12.62% improvement in compressive strength from control cement mortar without SCG additives (28.77MPa). Experimental validation of the optimum condition showed a good agreement with a deviation of 3.12% in three replicates, thus indicating that the optimum model in this work can be used to model the compressive strength of the SCG-cement mortar mixture.

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Enhancing toughness in cement-based composites: Unraveling the composite effect mechanisms of polymers and fibers through physic testing and molecular dynamics simulations

Zhang,

Wang,

Zhang

et al. 2024

Composites Part B: Engineering

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Molecular simulation of calcium-silicate-hydrate and its applications: A comprehensive review

Cited by 15 publications

References 166 publications

Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

Nanofiltration and selective crystallisation as technologies for the recovery of chemicals from seawater desalination brine to be used as ingredients for Bio-based fertilisers

Spent coffee grounds enhanced compressive strength of cement mortar: an optimization study

Enhancing toughness in cement-based composites: Unraveling the composite effect mechanisms of polymers and fibers through physic testing and molecular dynamics simulations

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