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Properties of cement grout modified with ultra-fine slag

Sowmini GOPINATHAN, K B ANAND

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 58-66 doi: 10.1007/s11709-017-0383-0

Abstract: The grout mixes of the present study contain cement, ultra-fine slag (UFS), super plasticizer and waterThe results show that, cement replacement with slag in grouts could reduce bleeding substantially withoutIntroduction of slag enhanced the compressive strength and reduced shrinkage reasonably.Ultra-fine slag can be used as a supplementary cementitious material in cementitious grouts in order

Keywords： cement grout     ultra-fine slag     flowability     bleeding     viscosity    

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Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 117-130 doi: 10.1007/s11709-021-0788-7

Abstract: Proven research output on the behavior of structures made of waste copper slag concrete can improve itsAlthough numerous studies on waste copper slag concrete can be found in the published literature, noIn particular, the variability in the strength properties of waste copper slag concrete, which is required-, flexural- and split tensile strength of hardened concrete with different dosages of waste copper slagas fine aggregate.

Keywords： waste copper slag     quantification of variability     goodness-of-fit test     seismic risk assessment     PSDM    

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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 concrete

Keywords： binder     concrete     mechanical properties     mineralogy     workability    

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Cleaner geopolymer prepared by co-activation of gasification coal fly ash and steel slag: durability

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 12, doi: 10.1007/s11783-023-1750-9

Abstract:

● Better packing density and higher early strength of SS-rich geopolymer.

Keywords： Geopolymer     Shell coal gasification fly ash     Steel slag     Heavy metal     Solidification/stabilization     Durability    

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Collaborative control of fine particles and ozone required in China for health benefit

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1692-2

Abstract:

● Increased DAAO offsets 3/4 of the decrease of DAAP in 2013–2020.

Keywords： Excess deaths     Long-term exposure     Fine particle     Ozone    

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Performance assessment of Alccofine with silica fume, fly ash and slag for development of high strength

Shivang D. JAYSWAL; Mahesh MUNGULE

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 576-588 doi: 10.1007/s11709-022-0826-0

Abstract: identified silica fume (SF) as the most effective supplementary material, whereas fly ash (FA) and slagcompares its performance with conventional materials namely SF, FA and ground granulated blast furnace slagThe mortar specimens with binder to fine-aggregates (b/f ) ratio of 1:2 are prepared at

Keywords： Alccofine     high strength mortar     efficiency factor     dilution effect    

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Fine Chemicals in the New Century

Yang Jinzong

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 21-25

Abstract:

Fine chemicals industry is one of the standards to evaluate the level of chemical industry.Several problems which should be taken into consideration in developing fine chemicals industry, including

Keywords： fine chemicals     environmental protection     core technology     energy saving     consumption decrease     specialty    

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The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 803-816 doi: 10.1007/s11709-022-0835-z

Abstract: Construction and demolition waste (CDW) are the largest waste products in the world today and competes as a viable recycled additive material in place of natural aggregates. Due to the increase in compressive strength of different mix proportions of CDW, it is also considered for reuse in concrete and subbase construction. This study shows the effect of CDW in expansive soil stabilization. The chemical and mechanical properties of these materials have shown that they are capable of developing compressive strength properties for replacement of cement with significant reduction in carbon emission. The inherent compositional properties of recycled CDW compared in this review suggests that CDW have good filler properties in highly expansive soils. Mixtures of crushed brick and recycled aggregates characterised based on chemical properties of different replacement ratios suggests that CDW of good-quality aggregates reduces swell potential of expansive soils and increased mechanical strength in pavement construction.

Keywords： mixed fine portions     construction and demolition waste     expansive soil     soil stabilization    

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Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 419-428 doi: 10.1007/s11709-013-0224-8

Abstract: Therefore, replacement of waste glass with fine aggregate in SCC should deeply be investigated comparedThe aim of the present study is to investigate the effect of glass replacement with fine aggregate onIn present study, fine aggregate has been replaced with waste glass in six different weight ratios rangingdifferent glass replacement ratios is not remarkable, thus it can be produced SCC with waste glass as fine

Keywords： Self Compacting Concrete (SCC)     recycle glass     fine aggregate     fresh and hardened properties    

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Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fine

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 10,   Pages 1554-1570 doi: 10.1007/s11709-023-0955-0

Abstract: both reinforced concrete (RC) and plain concrete (PC) columns) and a prefabricated textile-reinforced fine

Keywords： textile-reinforced fine concrete     prefabricated shell     confined concrete column     confinement properties    

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Effect of fly ash and slag on concrete: Properties and emission analyses

Vivian W. Y. TAM, Khoa N. LE, Ana Catarina Jorge EVANGELISTA, Anthony BUTERA, Cuong N. N. TRAN, Ashraf TEARA

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 395-405 doi: 10.1007/s42524-019-0019-2

Abstract: control for recycled concrete by adding supplementary cementitious materials fly ash and blast furnace slagConversely, a mixture with over 50% cement replacement by either fly ash or slag or a combination of

Keywords： recycled aggregate     recycled concrete     fly ash and slag    

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Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection RESEARCH ARTICLE

Frontiers of Agricultural Science and Engineering 2024, Volume 11, Issue 1,   Pages 169-185 doi: 10.15302/J-FASE-2023521

Abstract:

In Asia, the rice crop sustains millions of people. However, growing demand for this crop needs to be met while simultaneously reducing its water consumption to cope with the effects of climate change. Lowland cropping systems are the most common and productive but have particularly high water requirements. High-yielding rice genotypes adapted to drier environments (such as rainfed or aerobic rice ecosystems) are needed to increase the water use efficiency of cropping. Identifying these genotypes requires fast and more accurate selection methods. It is hypothesized that applying a new quantitative selection method (the score index selection method), can usefully compare rice yield responses over different years and stress intensities to select genotypes more rapidly and efficiently. Applying the score index to previously published rice yield data for 39 genotypes grown in no-stress and two stress environments, identified three genotypes (ARB 8, IR55419-04 and ARB 7) with higher and stable yield under moderate to severe stress conditions. These genotypes are postulated to be better adapted to stress environment such as upland and aerobic environments. Importantly, the score index selection method offers improved precision than the conventional breeding selection method in identifying genotypes that are well-suited to a range of stress levels within the target environment.

Keywords： Aerobic rice     breeding selection     drought resilience     production capacity index     resilience capacity index     stress score index     upland    

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and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1547-2

Abstract:

• DPAA sorption followed pseudo-secondary and intra-particle diffusion models.

Keywords： Diphenylarsinic acid (DPAA)     Sorption     Magnetite     Siderite     Sequential extraction     EXAFS    

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network model on tensile behavior of hybrid steel-PVA fiber reinforced concrete containing fly ash and slag

Fangyu LIU, Wenqi DING, Yafei QIAO, Linbing WANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1299-1315 doi: 10.1007/s11709-020-0712-6

Abstract: The tensile behavior of hybrid fiber reinforced concrete (HFRC) is important to the design of HFRC and HFRC structure. This study used an artificial neural network (ANN) model to describe the tensile behavior of HFRC. This ANN model can describe well the tensile stress-strain curve of HFRC with the consideration of 23 features of HFRC. In the model, three methods to process output features (no-processed, mid-processed, and processed) are discussed and the mid-processed method is recommended to achieve a better reproduction of the experimental data. This means the strain should be normalized while the stress doesn’t need normalization. To prepare the database of the model, both many direct tensile test results and the relevant literature data are collected. Moreover, a traditional equation-based model is also established and compared with the ANN model. The results show that the ANN model has a better prediction than the equation-based model in terms of the tensile stress-strain curve, tensile strength, and strain corresponding to tensile strength of HFRC. Finally, the sensitivity analysis of the ANN model is also performed to analyze the contribution of each input feature to the tensile strength and strain corresponding to tensile strength. The mechanical properties of plain concrete make the main contribution to the tensile strength and strain corresponding to tensile strength, while steel fibers tend to make more contributions to these two items than PVA fibers.

Keywords： artificial neural network     hybrid fiber reinforced concrete     tensile behavior     sensitivity analysis     stress-strain curve    

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Review on the progress of ultra-precision machining technologies

Julong YUAN, Binghai LYU, Wei HANG, Qianfa DENG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 158-180 doi: 10.1007/s11465-017-0455-9

Abstract:

Ultra-precision machining technologies are the essential methods, to obtain the highest form accuracyThe conception, applications and history of ultra-precision machining are introduced in this article,and the developments of ultra-precision machining technologies, especially ultra-precision grinding,ultra-precision cutting and polishing are also reviewed.

Keywords： ultra-precision grinding     ultra-precision cutting     ultra-precision polishing     research status in China     development    

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Title Author Date Type Operation

Properties of cement grout modified with ultra-fine slag

Sowmini GOPINATHAN, K B ANAND

Journal Article

Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Journal Article

Utilization of alkali-activated copper slag as binder in concrete

Journal Article

Cleaner geopolymer prepared by co-activation of gasification coal fly ash and steel slag: durability

Journal Article

Collaborative control of fine particles and ozone required in China for health benefit

Journal Article

Performance assessment of Alccofine with silica fume, fly ash and slag for development of high strength

Shivang D. JAYSWAL; Mahesh MUNGULE

Journal Article

Fine Chemicals in the New Century

Yang Jinzong

Journal Article

The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Journal Article

Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Journal Article

Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fine

Journal Article

Effect of fly ash and slag on concrete: Properties and emission analyses

Vivian W. Y. TAM, Khoa N. LE, Ana Catarina Jorge EVANGELISTA, Anthony BUTERA, Cuong N. N. TRAN, Ashraf TEARA

Journal Article

Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection

Journal Article

and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure

Journal Article

network model on tensile behavior of hybrid steel-PVA fiber reinforced concrete containing fly ash and slag

Fangyu LIU, Wenqi DING, Yafei QIAO, Linbing WANG

Journal Article

Review on the progress of ultra-precision machining technologies

Julong YUAN, Binghai LYU, Wei HANG, Qianfa DENG

Journal Article