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Effect of Ferrous Additives on Magnesia Stone Hydration

机译：黑色金属剂对氧化镁石水合的影响

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The article deals with the modification of the magnesia binder with additives containing two-and three-valent iron cations which could be embedded in the chloromagnesium stone structure and also increase the strength from 60 MPa in a non-additive stone to 80MPa, water resistance from 0.58 for clear stone to 0.8 and reduce the hygroscopicity from 8% in the non-additive stone to 2% in the modified chloromagnesium stone. It is proposed to use the iron hydroxide sol as an additive in the quantities of up to 1% of the weight of the binder. The studies were carried out using the modern analysis methods: the differential-thermal and X-ray phase analysis. The structure was studied with an electron microscope with an X-ray microanalyzer. A two-factor plan-experiment was designed which allowed constructing mathematical models characterizing the influence of variable factors, such as the density of the zatcher and the amount of sol in the binder, on the basic properties of the magnesian stone. The result of the research was the magnesia stone with the claimed properties and formed from minerals characteristic for magnesian materials as well as additionally formed from amachenite and goethite. It has been established that a highly active iron hydroxide sol the ion sizes of which are commensurate with magnesium ions is actively incorporated into the structure of pentahydroxychloride and magnesium hydroxide changing the habit of crystals compacting the structure of the stone and changing its hygroscopicity.
机译：本文涉及用含有双和三价铁阳离子的添加​​剂改性氧化镁粘合剂，其可以嵌入氯氰酸镁石结构中，并在非加料石材中从60MPa增加到80MPa，耐水性0.58对于透明的石头至0.8，并将湿润程度从非加性石头的8％降低到修饰的氯镁石中的2％。提出使用氢氧化铁溶胶作为添加剂的添加剂，其粘合剂重量的1％。使用现代分析方法进行研究：差分热和X射线相分析。用带有X射线微仪的电子显微镜研究了结构。设计了双因素的计划实验，其允许构建表征可变因素的影响的数学模型，例如串联石的基本性质的酶的可变因素的影响和粘合剂中的溶剂的量。该研究的结果是氧化镁石，具有所要求保护的性质，由镁质材料的矿物特征形成，以及另外由amachenite和甲酸酯形成的。已经确定，高活性的氢氧化铁溶胶，其与镁离子相称的离子尺寸是主动掺入戊氯氧化物和氢氧化镁的结构中，改变了压实石材结构并改变其吸湿性的晶体的习惯。

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