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首页> 外文期刊>Materials Characterization >The influence of phosphorous pentoxide on the phase composition and formation of Portland clinker
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The influence of phosphorous pentoxide on the phase composition and formation of Portland clinker

机译：五氧化二磷对硅酸盐熟料相组成和形成的影响

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摘要

The influence of phosphorous pentoxide (P_2O_5) on the phase composition and formation of Portland clinker was studied in laboratory conditions. Phosphorous pentoxide in the form of calcium phosphate was added to common cement-making raw meal in graded quantities up to 5 wt. percent . The raw meal properties were studied by thermal analysis. The development of clinker formation by burning for periods ranging from 20 s to 30 min in a special semiautomatic oven with a manipulator was followed using light optical microscopy. The phase composition of clinkers burnt to equilibrium was quantified by the optical point counting method. The entry of P_2O_5 into clinker minerals was determined by electron microprobe analyses. The laboratory tests show that at 0.7 wt. percent of P_2O_5 in the clinker the alite (Ca_3SiO_5) content decreases and belite (Ca_2SiO_4) content increases. At a P_2O_5 content of 4.5 wt. percent alite formation was totally blocked and the resulting clinker contained free lime in equilibrium with belite.
机译：在实验室条件下研究了五氧化二磷（P_2O_5）对硅酸盐熟料的相组成和形成的影响。将磷酸钙形式的五氧化二磷以不超过5 wt。百分 。通过热分析研究了生料特性。使用光学显微镜观察通过在带有操纵器的特殊半自动烤箱中燃烧20 s至30 min的时间而形成的熟料。通过光点计数法对燃烧至平衡的熟料的相组成进行定量。通过电子探针分析确定P_2O_5进入熟料矿物。实验室测试表明在0.7 wt。熟料中P_2O_5的百分含量降低了珍珠岩（Ca_3SiO_5）含量，而珍珠岩（Ca_2SiO_4）含量增加。在P_2O_5含量为4.5重量％时。 ％的阿利特形成完全被阻止，并且所形成的熟料含有与贝利特平衡的游离石灰。

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