2022
DOI: 10.1016/j.jobe.2022.104923
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Influences of different bischofite on the properties of magnesium oxychloride cement

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Cited by 8 publications
(7 citation statements)
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“…MOC production typically creates four primary reaction crystal phases, i.e., phase 2 (2Mg(OH) 2 •MgCl 2 •4H 2 O), phase 3 (3Mg(OH) 2 •MgCl 2 •8H 2 O), phase 5 (5Mg(OH) 2 •MgCl 2 •8H 2 O), and phase 9 (9Mg(OH) 2 •MgCl 2 •5H 2 O) [12]. The crystallization of such primary reaction phases is influenced by several significant factors, including the reactivity of MgO [13], MgO/MgCl 2 molar ratio, curing conditions [14], and chemical admixtures [10,15]. Phases 2 and 9 stabilize when the curing temperature exceeds 100 • C, whereas phases 3 and 5 remain stable at temperatures below 100 • C. Phases 3 and 5 are described as scroll-tubular whiskers that resemble well-crystallized needles.…”
Section: Introductionmentioning
confidence: 99%
“…MOC production typically creates four primary reaction crystal phases, i.e., phase 2 (2Mg(OH) 2 •MgCl 2 •4H 2 O), phase 3 (3Mg(OH) 2 •MgCl 2 •8H 2 O), phase 5 (5Mg(OH) 2 •MgCl 2 •8H 2 O), and phase 9 (9Mg(OH) 2 •MgCl 2 •5H 2 O) [12]. The crystallization of such primary reaction phases is influenced by several significant factors, including the reactivity of MgO [13], MgO/MgCl 2 molar ratio, curing conditions [14], and chemical admixtures [10,15]. Phases 2 and 9 stabilize when the curing temperature exceeds 100 • C, whereas phases 3 and 5 remain stable at temperatures below 100 • C. Phases 3 and 5 are described as scroll-tubular whiskers that resemble well-crystallized needles.…”
Section: Introductionmentioning
confidence: 99%
“…Consequently, China, the global leader in the magnesium metallurgical market, must assume the environmental responsibilities associated with magnesium mining, manufacturing, and smelting. Especially, the exploitation of magnesite has been restricted due to carbon emission control and environmental protection measures . Therefore, there is a need for new ways to extract magnesium resources due to the introduction of strict environmental legislation and growing concerns about greenhouse gas emissions and climate change.…”
Section: Introductionmentioning
confidence: 99%
“…Within the salt lake industry, potassium chloride (KCl) extraction generates industrial byproducts in evaporation ponds, including bischofite. , Generally, bischofite (MgCl 2 ·6H 2 O) is a magnesium chloride mineral with crystallization water . However, the accumulation of large quantities of bischofite waste threatens the sustainable development and ecological environment of the salt lake industry. , Unfortunately, the utilization rate of bischofite remains low, with less than 1% of the total waste being effectively utilized . Statistical data from 2019 in China indicate that the production of potassium chloride was 804,000 tons, while solid waste bischofite exceeded an annual volume of 80 million tons .…”
Section: Introductionmentioning
confidence: 99%
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