Improving the Hardened Properties of Nonautoclaved Silicate Materials Using Nanodispersed Mine Waste

2021 ◽  
Vol 33 (9) ◽  
pp. 04021214
Author(s):  
Valery Lesovik ◽  
Aleksandr Volodchenko ◽  
Roman Fediuk ◽  
Y. H. Mugahed Amran
2018 ◽  
Author(s):  
Driton R. Kryeziu ◽  
Armend Muja ◽  
Fisnik Kadiu ◽  
Visar Krelani ◽  
Besian Sinani ◽  
...  

2000 ◽  
Vol 628 ◽  
Author(s):  
Takeo Yamada ◽  
Keisuke Asai ◽  
Kenkichi Ishigure ◽  
Akira Endo ◽  
Hao S. Zhou ◽  
...  

ABSTRACTMesoporous materials have attracted considerable interest because of applications in molecular sieve, catalyst, and adsorbent. It will be useful for new functional device if functional molecules can be incorporated into the pore of mesoporous material. However, it is necessary to synthesize new mesoporous materials with controlled large pore size. Recently, new class of mesoporous materials has been prepared using triblock copolymer as a template. In this paper, we reported that hexagonal and cubic structure silicate mesoporous materials can be synthesized through triblock copolymer templating, and their size was controlled by synthesis condition at condensation.


2017 ◽  
Vol 16 (9) ◽  
pp. 2089-2096
Author(s):  
Artwell Kanda ◽  
George Nyamadzawo ◽  
Jephita Gotosa ◽  
Nathan Nyamutora ◽  
Willis Gwenzi

Data Series ◽  
10.3133/ds378 ◽  
2008 ◽  
Author(s):  
Denise M. Argue ◽  
Richard G. Kiah ◽  
Nadine M. Piatak ◽  
Robert R. Seal ◽  
Jane M. Hammarstrom ◽  
...  

2003 ◽  
Author(s):  
Kathleen S. Smith ◽  
Thomas R. Wildeman ◽  
LaDonna M. Choate ◽  
Sharon F. Diehl ◽  
David L. Fey ◽  
...  

2011 ◽  
Vol 26 (12) ◽  
pp. 1327-1334 ◽  
Author(s):  
Lin-Yi ZHAO ◽  
Li LI ◽  
Zui-Xiong LI ◽  
Jin-Hua WANG
Keyword(s):  

2018 ◽  
Vol 69 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Cristina Dinu ◽  
Eleonora Mihaela Ungureanu ◽  
Gabriela Geanina Vasile ◽  
Lidia Kim ◽  
Ioana Ionescu ◽  
...  

The soils situated near the abandoned mines are highly polluted with metals due to the discharge and dispersion of mine waste into nearby air, water (surface and groundwater) and soil. Heavy metals may be transferred to humans through ingestion, inhalation or dermal absorption and can produce serious health problems affect the nervous, endocrine and immune systems, hematopoietic function and cellular metabolism. This paper investigates the presence of metallic elements from fourteen soil samples (seven sampling points) and thirty-six vegetation samples (different types of leaves, plants, roots and tree barks). The samples were collected from six different sites located in an abandoned mining area and from a point (blank sample) located 5 km in the SV direction of the quarry. The results obtained for soil samples show an overrun of the alert and / or intervention threshold for the following metals: arsenic, cadmium, cobalt, copper, manganese, nickel, lead and zinc. The analytical investigation for vegetation samples indicated that concentration for calcium, magnesium, cadmium, chromium, manganese, nickel, lead, zinc were situated over the normal range in some samples. The analytical investigations were performed by optical emission spectrometry (ICP-OES). The study�s conclusion indicates that, as result of soil acidic pH and high mobility of some metals, metallic elements migrate from soil to vegetation.


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