Plasma Processing in Industry of Building Materials

Abstract

The equipment for plasma processing with specific area of application – production of building materials – is proposed. For the proposed equipment the examination of possibilities is carried out. It was shown that plasma processing significantly affects the components of concrete – portland cement, fine filler (silica) and water. The treatment of portland cement leads to crystalline hydrate shell destruction and removal of chemically bound water. This, in turn, leads to the increase of strength by 15-20%. Plasma processing significantly changes the state of the fine filler. The total surface area of such a filler decreases due to flash-off effects. In Raman spectra all strong peaks of crystalline quartz disappear, and amorphization of quartz takes place after processing. If both cement and fine filler are processed than strength can be increased by 30%. By means of plasma processing of water it is possible not only to enlarge the strength of mortar, but also to increase the rate of curing. The improvement of properties is probably due to changes of hydration completeness in case of activated water.

Optimization of the Use of His6-OPH-Based Enzymatic Biocatalysts for the Destruction of Chlorpyrifos in Soil

“…The non-equilibrium low temperature plasma (NELTP) processing in barrier discharge can positively affect the sorption characteristics of mineral carriers applied as building materials [ 66 , 67 ]. In general, plasma is an ionized gas that can be generated by a number of methods, including electric discharges (glow, microwave, plasma jet, radio frequency, etc.).…”

Перспективы Развития Строительного Материаловедения

“…Другими важными направлениями являются: применение биотехнологии в повышении эффективности строительных материалов и при разработке самовосстанавливающихся материалов [41][42][43][44][45][46][47][48][49], разработка и совершенствование методов определения долговечности строительных материалов [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69], совершенствование и разработка новых физических методов повышения интенсивности межфазных взаимодействий [70][71][72][73][74][75], применение методов математического моделирования для получения новых знаний о структурообразовании строительных материалов [76][77][78][79][80][81][82][83][84][85] и др.…”

Sulfur-Extended High-Performance Green Paving Materials

“…There are methods of application of both inorganic [5] and organic [6] additives which leads to increased compressive strength of the building materials. The mechanical properties of nanoscale-modified constructional composites, including ones with bituminous matrix, are subject of extensive examination -both experimental [5][6][7][8] and numerical [9][10][11].…”