姜利民　翁家杰

　　摘要　在菱鎂混凝土中添加含活性SiO2的材料，如粉煤灰和沸石粉，來提高制品的耐水性和強度.運用正交試驗分析手段，找出了添加材料對制品性能的影響程度.試驗證明粉煤灰的摻入對提高制品的性能有顯著作用，按此一定配比生產出了性能改進的菱鎂混凝土礦用背板.進一步分析表明，隨粉煤灰品質的改善，將能得到性能更加優異的菱鎂混凝土制品.
　　關鍵詞　菱鎂混凝土，粉煤灰，沸石粉，正交試驗，強度，耐水性
　　中圖分類號　TU　528

Research on Properties of Magnesium Oxychloride
Concrete with Active SiO2 Materials

Jiang Limin　Weng Jiajie
( College of Architecture and Civil Engineering, CUMT, Xuzhou, Jiangsu 221008 )

　　Abstract　Materials containing active SiO2 such as fly ash and zeolite powder added to magnesium oxychloride concrete, can make its strength and water resistance much better. Orthogonal test analysis has been employed to find out the degree of influence of the materials containing active SiO2 on the magnesium oxychloide concrete. Experiments have shown that the properties of magnesium oxychloride concrete are remarkably enhanced by adding fly ash into it. According to this formula the mining back boards with improved properties are produced. Further analysis has indicated that with the enhancement of the fly ash quality, magnesium oxychloride concrete products with better properties can be produced.
　　Key words　magnesium oxychloride concrete, fly ash, zeolite powder, orthogonal test, strength, water-resistant