A Comparative Study on the Basic Properties of FGD Gypsums

2011 ◽  
Vol 374-377 ◽  
pp. 1758-1763
Author(s):  
Ye Zhang ◽  
Peng Xuan Duan ◽  
Bao Sheng Jia ◽  
Fan Zhang
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Comparative Study ◽  
Size Distribution ◽  
Chemical Constituents ◽  
Test Results ◽  
Fgd Gypsum ◽  
Basic Properties

Compared with natural gypsum, the basic properties of FGD gypsum are studied based on the test results and then the influence of FGD gypsum’s chemical constituents, impurities and particle size distribution on its products is analyzed. The results indicate the impurities play an important role on the FGD gypsum behavior. Finally, the differences between FGD gypsum and natural gypsum are summarized.

The comparative study of particle size distribution in magnetic fluids

2002 ◽  
Vol 52 (S1) ◽  
pp. A281-A284 ◽  
Author(s):  
M. Timko ◽  
P. Kopčanský ◽  
M. Koneracká ◽  
A. Skumiel ◽  
M. Labowski ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Comparative Study ◽  
Size Distribution ◽  
Magnetic Fluids ◽  
The Comparative Study

scholarly journals Comparative study of properties of different pesticide formulations of the same active ingredient

2008 ◽  
Vol 23 (3) ◽  
pp. 201-206
Author(s):  
Slavica Gasic ◽  
Zlatko Oreskovic
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Comparative Study ◽  
Size Distribution ◽  
Active Ingredient ◽  
Oil In Water ◽  
Pesticide Formulations ◽  
Final Estimate ◽  
New Formulation ◽  
Emulsion Oil

Characteristics of two formulations of trifluralin, an emulsifiable concentrate (EC) and emulsion, oil in water (EW), the latter being a new formulation of our design, were investigated and compared. Attention was focused on particle size distribution and aspects of the two aqueous dilute formulations as the most characteristic and comparable parameters. The results show that the trifluralin EW formulation has certain advantages over the EC formulation, but a final estimate will be possible only after testing biological efficacy of the new formulation (EW).

Influence of particle size distribution, test time, and moisture content on sandy stratum LCPC abrasivity test results

2020 ◽  
Vol 80 (1) ◽  
pp. 611-625 ◽  
Author(s):  
Zhengyang Sun ◽  
Zhiyong Yang ◽  
Yusheng Jiang ◽  
Hongji Gao ◽  
Kuanda Fang ◽  
...  
Keyword(s):  
Particle Size ◽  
Moisture Content ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Test Time ◽  
Test Results

scholarly journals Experimental Investigation into Internal Erosion Potential for Granular Filters

2016 ◽  
Author(s):  
Jahanzaib Israr ◽  
Buddhima Indraratna ◽  
Cholachat Rujikiatkamjorn
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Relative Density ◽  
Size Distribution ◽  
Large Body ◽  
Internal Erosion ◽  
Published Data ◽  
Test Results ◽  
Wide Range ◽  
Partial Success

Internal erosion is a phenomenon whereby the filtrates under the influence of significant seepage forces accompany the finer fraction from potential internally unstable filters (e.g. broadly- and gap-graded soil), occasionally rendering them ineffective. The filter assessment for internal erosion or instability potential is emphasized through particle size distribution based geometrical criteria ignoring the effect of compaction. In this study, the results of hydraulic gradient controlled internal erosion tests conducted over a wide range of compacted sand-gravel mixtures were used to analyse some of the available geometrical criteria, which interestingly showed partial success in assessing the filter’s internal erosion potential. It was revealed that the occurrence of internal erosion is a combined function of particle size distribution and the relative density of soils that had been ignored in many of the existing criteria. A comparison between the assessments obtained from some of the particle size based criteria and that from a constriction size based technique was reported for a large body of published data. It was observed that the latter criterion, which incorporates the effects of both particle size distribution and relative density of soils in tandem, could assess the reported test results with higher accuracy.

scholarly journals Effect of Garnet Characteristics on Abrasive Waterjet Cutting of Hard Granite Rock

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Tae-Min Oh ◽  
Gun-Wook Joo ◽  
Yohan Cha ◽  
Gye-Chun Cho
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Rock Cutting ◽  
Cutting Performance ◽  
Abrasive Waterjet ◽  
Test Results ◽  
Abrasive Particles ◽  
Waterjet Cutting ◽  
Abrasive Waterjet Cutting

Abrasive waterjet cutting technology has come back into use in the field of rock excavation (such as for tunneling) due to the need for precision construction with low vibration. Because the abrasive particles play an important role in efficient erosion during the cutting process, the abrasive characteristics strongly affect the rock cutting performance. In this study, rock cutting tests were performed with five different coarse (40 mesh) garnets to explore the effect of the abrasive feed rate, physical properties, and particle size distribution on rock cutting performance. In addition, garnet particle disintegration was investigated with garnet characteristics for the abrasive waterjet. The test results indicate that the particle size distribution, garnet purity, specific gravity, and hardness are the most important parameters for rock cutting performance. This study offers better understanding of coarse garnet performance and efficiency according to the garnet characteristics. This should provide assistance in selection of the garnet needed to achieve the desired performance for hard rock cutting.

PARTICLE SIZE DISTRIBUTION OF BIMODALS : A COMPARATIVE STUDY OF SUBMICRON SIZING INSTRUMENTATION

1991 ◽  
pp. 388-400 ◽  
Author(s):  
Robert Finsy ◽  
Marc Van Laethem ◽  
Nicolas De Jaeger ◽  
Rik Sneyers ◽  
Jan Vanderdeelen ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Comparative Study ◽  
Size Distribution
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