磷酸镁质耐热混凝土材料的研究 |
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引用本文: | 刘豫,曹阳,郑书航. 磷酸镁质耐热混凝土材料的研究[J]. 中国建材科技, 2010, 0(4): 54-57 |
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作者姓名: | 刘豫 曹阳 郑书航 |
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作者单位: | 河南理工大学材料科学与工程学院,河南焦作454000; |
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摘 要: | 本文研究了以氧化镁、磷酸二氢钾、硼砂和硅灰所得的镁质磷酸盐为主的胶凝物质作为结合剂,以棕刚玉作为骨料制备的快硬耐热混凝土的力学性能。研究氧化镁、磷酸二氢钾硼砂、硅灰对该混凝土力学的影响。研究发现MgO/KH2PO4的比率是耐火混凝土力学性能的关键因素。在850℃的该耐火材料的抗压强度达到19.58MPa,抗折强度3.37MPa。
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关 键 词: | 耐热混凝土 磷酸镁 力学性能 |
Study on magnesium phosphate heat resistance concrete |
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Abstract: | In this paper, magnesite,potassium dihydrogen phosphate(KH2PO4),borax,silica flour act as binder and incorporate with corundum to make fast-hardening heat resistance concrete.The effect of variables such as the amount of MgO,KH2PO4,borax and silica flour on the mechanical properties of the concrete were investigated.The results show that MgO/KH2PO4 ratio is the key factor for the mechanical properties.At 850 ℃ ,the highest compressive strength of the specimens was 19.35MPa,while the highest flexure strength were 3.37MPa. |
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Keywords: | heat resistance concrete magnesium phosphate mechanical property |
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