SUPPLEMENTARY CEMENTITIOUS MATERIALS, AND MANUFACTURING AND USE THEREOF
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Sep 30, 2022
filing date -
Sep 30, 2022
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Abstract
A composition of the supplementary cementitious material (SCM) is, on a dry basis, iron silicate having the chemical formula 2FeO·x SiO2, where x is 1.05-2.1, the iron silicate being the balance of the SCM; 0-4% by weight of aluminum comprised in aluminum-containing compounds, preferably 2-4% by weight, and 0-7% by weight of chain breaking elements, wherein the chain breaking elements are selected from the group consisting of calcium oxide (CaO), magnesium oxide, (MgO), sodium oxide (Na2O), barium oxide (BaO), strontium oxide (SrO), manganese (II) oxide (MnO), zinc oxide (ZnO), beryllium oxide (BeO), or any combination thereof; 0-4% by weight of trace elements and/or naturally occurring impurities. The SCM has an amorphous content of at least 95% by weight.
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