Magnetic properties of multiwall carbon nanotubes and astralenes in strong electric fields

An Impact of Carbon Nanostructured Additives on the Kinetics of Cement Hydration

“…• a final grinding of cement at a speed of 200 rev / min for 10 minutes does not influence on its activity; • the heat emissions during hydration of cement with the addition of CCM-1 and CCM-2 are the same throughout the experiment; • the heat emission during hydration of the cement with the addition of 2 % CCM is greater at 29.2 % than the heat emission of the cement without additives on the second day of the experiment; It can be concluded that CCMs are the centers of crystallization, which accelerate the process of crystallization of cement stone. Moreover, using CCM in combination with SAS, superplasticizers [22] or nanomodified additives [16][17][18]23], it is also possible to influence on the density, fire resistance, cold resistance and other properties of concrete. Some additional multi-stage researches of the causes of increased heat emission with the use of CCM are needed.…”

“…• Nanodispersed silica (increases the strength up to 2.5 times while reducing cement consumption by 25-30%) [16] • Microspheres (application of the microspheres allows to obtain the compositions with a density up to 800 kg / m 3 , and wherein the strength characteristics could reach indicators 40-45 MPa) [17] • Magnesium Nanoshpinel (significantly increases brand on frost resistance and water absorption) • MB-01 (compressive strength is up to 100 MPa) The achievement of JSC "NTC Applied Nano-technology" could be regarded as the breakthrough in nano-technologies. They have created some additives for nano-structured concrete, such as multiwalled carbon nanotubes and astralenes [18].…”

Prospects of Use and Impact of Nanoparticles on the Properties of High-Strength Concrete

“…In addition to the well-known advantages of these materials as reinforcements, which include extremely high strengths [23] and Young's moduli [24], elastic behavior [25] and advantageous electronic [26] and thermal properties [27]. The creation of additives for nanostructured concrete such as multiwall carbon nanotubes and astralenes can be considered as a great breakthrough in nano-technology [28][29][30][31][32]. In the article [33] we considered a successful modification of French giperplasticizer PREMIA 360 with astralenes and an injection into the fine-grained concrete mixtures of oil shale ash ZolestBET [34].…”