Cementitious activity optimization studies of iron tailings powder as a concrete admixture

2020 ◽  
Vol 265 ◽  
pp. 120760
Author(s):  
Mingjing Yang ◽  
Jianheng Sun ◽  
Chenyang Dun ◽  
Yajing Duan ◽  
Zhiliang Meng
Keyword(s):  
Cementitious Activity ◽  
Activity Optimization

Activity optimization of pyridinyl N-oxide urea cytokinin mimics

1988 ◽  
Vol 36 (3) ◽  
pp. 626-633 ◽  
Author(s):  
Robert N. Henrie ◽  
Christine M. Green ◽  
Walter H. Yeager ◽  
Thomas F. Ball
Keyword(s):  
Activity Optimization

scholarly journals Enhancement Experiment on Cementitious Activity of Copper-Mine Tailings in a Geopolymer System

Fibers ◽  
2017 ◽  
Vol 5 (4) ◽  
pp. 47 ◽  
Author(s):  
Lin Yu ◽  
Zhen Zhang ◽  
Xiao Huang ◽  
Binquan Jiao ◽  
Dongwei Li
Keyword(s):  
Mine Tailings ◽  
Copper Mine ◽  
Copper Mine Tailings ◽  
Cementitious Activity

Study of Modification of High Temperature Melting Compound Steel Slag-Fly Ash

2011 ◽  
Vol 291-294 ◽  
pp. 1851-1855
Author(s):  
Yue Long ◽  
Yan Shi ◽  
Yun Bo Lei ◽  
Hong Wei Xing ◽  
Jie Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Fly Ash ◽  
Steel Slag ◽  
Tricalcium Silicate ◽  
Dicalcium Silicate ◽  
Experimental Result ◽  
Aggregation State ◽  
Melting Compound ◽  
Cementitious Activity ◽  
Temperature Melting

Reconstruction of high temperature melting compound steel slag-fly ash can be effectively digest f-CaO in steel slag. The experimental result shows that the f-CaO contents in modified slag is greatly affected by fly ash addition(respectively 5%, 7%, 14%) when the temperature is 1580°C and constant temperature is 30min, the digestion rates are respectively 56.99%,63.69%,68.55%. Modified mineral content of the steel slag changes greatly, mainly reflects at enormous increase in magnetite, dicalcium silicate, tricalcium silicate, wustite and vitreous. By micro-structure analysis of several kinds of modified slag mineral, tricalcium silicate mainly shape for branch of tree, dicalcium silicate is in the form of a circular, wustite and vitreous mainly distribute in aggregation state. The above minerals can increase cementitious activity for modified slag becoming cement.

scholarly journals Pyrazolyl-pyrimidones inhibit the function of human solute carrier protein SLC11A2 (hDMT1) by metal chelation

2020 ◽  
Vol 11 (9) ◽  
pp. 1023-1031
Author(s):  
Marion Poirier ◽  
Jonai Pujol-Giménez ◽  
Cristina Manatschal ◽  
Sven Bühlmann ◽  
Ahmed Embaby ◽  
...  
Keyword(s):  
Carrier Protein ◽  
Metal Chelation ◽  
Mechanistic Studies ◽  
Iron Transporter ◽  
Solute Carrier ◽  
Activity Optimization

Activity optimization of a pyrazolyl-pyrimidone against the iron transporter SLC11A2 (hDMT1) and mechanistic studies revealed that this class of inhibitors act by metal chelation.

scholarly journals First Synthesis of (−)-Altenuene-D3 Suitable as Internal Standard for Isotope Dilution Mass Spectrometry

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4563
Author(s):  
Michael A. Sebald ◽  
Julian Gebauer ◽  
Thomas Sommerfeld ◽  
Matthias Koch
Keyword(s):  
Mass Spectrometry ◽  
Antimicrobial Activity ◽  
Stable Isotope ◽  
Total Synthesis ◽  
Isotope Dilution ◽  
Isotope Dilution Mass Spectrometry ◽  
Internal Standard ◽  
Biological Properties ◽  
Mycotoxin Analysis ◽  
Activity Optimization

Metabolites from Alternaria fungi exhibit a variety of biological properties such as phytotoxic, cytotoxic, or antimicrobial activity. Optimization of a literature procedure culminated in an efficient total synthesis of (−)-altenuene as well as a stable isotope-labeled derivative suitable for implementation in a LC-MS/MS method for mycotoxin analysis.

scholarly journals Pomegranate seed oil nanoemulsions with selective antiglioma activity: optimization and evaluation of cytotoxicity, genotoxicity and oxidative effects on mononuclear cells

2016 ◽  
Vol 54 (12) ◽  
pp. 2968-2977 ◽  
Author(s):  
Luana Mota Ferreira ◽  
Mailine Gehrcke ◽  
Verônica Ferrari Cervi ◽  
Paula Eliete Rodrigues Bitencourt ◽  
Elita Ferreira da Silveira ◽  
...  
Keyword(s):  
Seed Oil ◽  
Mononuclear Cells ◽  
Pomegranate Seed Oil ◽  
Pomegranate Seed ◽  
Antiglioma Activity ◽  
Oxidative Effects ◽  
Activity Optimization

Effect of Chemical Composition on the Properties of Reconstructed Steel Slag

2019 ◽  
Vol 944 ◽  
pp. 1163-1171
Author(s):  
Ying Xu ◽  
Qiao Ling Wang ◽  
Chen Guang Hu ◽  
Shan Shan Yang
Keyword(s):  
Compressive Strength ◽  
Steel Slag ◽  
Temperature Reconstruction ◽  
X Ray Diffraction ◽  
Technological Parameters ◽  
Iron And Steel ◽  
X Ray ◽  
Volume Stability ◽  
Cementitious Activity ◽  
Scanning Electron

The steel slag is not widely or extensively used because of its poor volume stability and low cementitious activity. In this paper, the solid waste fly ash, quicklime and slag discharged from iron and steel enterprises are used as conditioning components in the experiment. In order to improve the cementitious activity and volume stability of steel slag, the high temperature reconstruction experiment of steel slag was completed. The effects of C/S (2.50~3.14), S/A (4.5~17. 81) on the cementitious activity and volume stability of reconstructed steel slag were investigated by means of the tests of compressive strength, scanning electron microscope, X-ray diffraction, lithofacies test, stability test and so on. The results showed that the cementitious activity and volume stability of the reconstructed steel slag were improved in the higher C/S or lower S/A. The cementitious activity and volume stability of the reconstructed steel slag were improved with the increase of CaF2 content. By analyzing the cementitious activity and volume stability of the reconstructed steel slag, the optimum technological parameters are obtained as follows: C/S is 2.70 , S/A is 5.78, the content of CaF2 is 4%.

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