a known method of processing silica-containing raw materials / RU 2171226, C01 F7 / 44, 2001 / comprising mixing silica-containing raw materials with hydrodifluoride or ammonium fluoride in a mass ratio of 1: 2.5 - ⁇ - 1: 3.3, the mixture is heated to + 170 ° -210 ° C, kept in a heated state until all the rock-forming components are fully fluorinated until a powdery cake is formed, from ...
Читать далееThe experimental work is carried out on concrete due to the effect of silica fume with and without steel fibers. In this research we used different concrete mixes with micro silica of 0%, 5%, 7.5% ...
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Jan 19, 2024 · Один из них – это применение специального кварцевого порошка, ... на производство одного слэба уходит 4-5 минут; впервые материал изготовили в Италии, ...
Читать далееAccording to Ahmed et al. [37] observed that a high compressive strength was obtained at 20 wt.% crushed QP as a partial replacement of fine sand and its strength gain was attributed to quartz ...
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Читать далееOct 10, 2023 · The paper proposes a new electropulse apparatus for processing natural raw materials. The temperature of the crushing-and-reducing assembly of an electropulse plant is found.
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