scholarly journals COMPARISON OF SELECTED PHYSICAL PROPERTIES OF TESTED NANOSUSPENSIONS – THE RESULTS OF THE EXPERIMENTAL RESEARCH OF THE DEGREE OF SEDIMENTATION AND THE DEPTH OF PENETRATION IN REFERENCE MATERIALS IN LABORATORY CONDITIONS

2017 ◽  
Vol 26 (3) ◽  
pp. 296-302
Author(s):  
Klára Kroftová ◽  
Markéta Šmidtová ◽  
Ivo Kuřitka ◽  
David Škoda
Keyword(s):  
Physical Properties ◽  
Experimental Research ◽  
Reference Materials ◽  
Depth Of Penetration ◽  
Laboratory Conditions

scholarly journals Analysis of the migration of a pollutant in the soil structure

2019 ◽  
pp. 130-134
Author(s):  
Maria Popa ◽  
Loredana Irena Negoita
Keyword(s):  
Grain Size ◽  
Physical Properties ◽  
Petroleum Product ◽  
Soil Structure ◽  
Petroleum Products ◽  
Depth Of Penetration ◽  
Liquid Petroleum Product ◽  
Accidental Pollution ◽  
Experimental Laboratory ◽  
First Time

This paper presents a study on the migration into a soil structure of a pollutant, a liquid petroleum product. Accidental pollution with a liquid petroleum product can also be considered to crack a transport pipeline. This leads to the displacement of the pollutant in the soil structure, both horizontally and vertically. The study presents an analysis of the migration velocity in the soil structure, with certain physical properties, of both the soil and the pollutant petroleum product. The penetration of petroleum products to a certain depth in soil is influenced by its humidity, grain size and density, pollution intensity, viscosity and pollutant density. It was possible to calculate for the first time at the experimental laboratory level the depth of penetration of the pollutant.

The Sucrose-Natural Gypsum Makes the Compound Retarder to the Cement and the Concretes Performance Influence Experimental Study

2011 ◽  
Vol 335-336 ◽  
pp. 1219-1222
Author(s):  
Ru Qin Wang
Keyword(s):  
Experimental Study ◽  
Physical Properties ◽  
Experimental Research ◽  
Mixing Time ◽  
The Other ◽  
Positive Correlation ◽  
Other Hand ◽  
Cement And Concrete

By the experimental research to the effect sucrose-natural gypsum as composite retarder on the performance of cement and concrete. This paper analyzes and summarizes the fact that the influence of this kind of composite retarder is more obvious than the slow setting effect of a single sugar or plaster. And the retardation of cement and concrete the mixing time is basically the amount of sugar a positive correlation. And on the other hand, it will not influence other physical properties.

Some physical properties that affect the rate of diffusion of oxygen into silage

1983 ◽  
Vol 100 (3) ◽  
pp. 601-605 ◽  
Author(s):  
D. V. H. Rees ◽  
E. Audsley ◽  
M. A. Neale
Keyword(s):  
Carbon Dioxide ◽  
Physical Properties ◽  
Laboratory Conditions

SUMMARYExperiments are described which study the effect of density and chop length on the rate of diffusion of oxygen into silage and equations are presented which enable the rate of diffusion to be calculated under laboratory conditions. The concept of zero porosity is also discussed and methods of calculating the density at which it occurs are given. The effect of carbon dioxide on the rate of diffusion is also discussed.

Mechanical and Physical Properties of Straw Bales

2013 ◽  
Vol 649 ◽  
pp. 250-253 ◽  
Author(s):  
Petr Konečný ◽  
Jiří Teslík ◽  
Michal Hamala
Keyword(s):  
Physical Properties ◽  
Material Properties ◽  
Modulus Of Elasticity ◽  
Building Material ◽  
Deformation Behavior ◽  
Deformation Characteristics ◽  
Empirical Knowledge ◽  
Laboratory Conditions ◽  
Mechanical And Physical Properties ◽  
Ecological Building

Straw bales can be used as a relatively cheap and ecological building material for buildings. Design of straw buildings is currently based on empirical knowledge although it would be very helpful to have more information about material properties for designing and realization of straw bales houses. Article discuses load - deformation behavior of straw bales in laboratory conditions and evaluate the modulus of elasticity of local straw bales. Deformation characteristics of straw bales can be very useful for the design of straw buildings.

scholarly journals EXPERIMENTAL RESEARCH INTO LEACHING OF METALS FROM IMMOBILIZED CIS SOLAR MODULE WASTE

2016 ◽  
Vol 24 (4) ◽  
pp. 269-277 ◽  
Author(s):  
Saulius VASAREVIČIUS ◽  
Gintautas SKRIPKIŪNAS ◽  
Vaidotas DANILA
Keyword(s):  
Heavy Metals ◽  
Physical Properties ◽  
Experimental Research ◽  
Indium Selenide ◽  
Copper Indium Selenide ◽  
Metal Leaching ◽  
Leaching Tests ◽  
Solar Module ◽  
Copper Indium ◽  
Cu And Zn

The aim of this research is to determine metal leaching from concrete specimens containing different quantities of waste recovered from copper indium selenide (CIS) solar module by replacing a certain share of sand aggregate. During the first stage of research the CIS solar module was shredded and leaching tests were performed on recovered waste by analysing six metals – Na, Mg, Fe, Cd, Cu and Zn. It has been determined that out of all metals analysed, the highest leaching was observed for sodium, while the highest leaching out of the heavy metals was found for zinc. In Phase II of the study concrete specimens with shredded CIS module waste were made and the physical properties of these specimens as well as the leaching of the same metals was determined. The results have shown that three metals, namely Fe, Cd, Zn, were successfully immobilised and did not leach from the specimens.

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