目錄
新型墻體材料與施工
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電解錳渣-頁巖-粉煤灰坯體的燒結性能研究

作者:宋謀勝,張杰,楊歡,周朋,張青杰

關鍵字:電解,錳渣,-頁巖,粉煤灰,坯體,的,燒結,性能,

 
(銅仁學院 物理與電子工程系,貴州 銅仁  554300)
    摘要:以銅仁市錳渣為主要原料,添加0~20%的頁巖粉和粉煤灰壓制成混合坯塊,在1030~1075 ℃內燒結2 h,研究其燒結性能。XRD定量鑒定發現,錳渣的主要礦物相為20.9%石英和29.0%二水硫酸鈣,另外還含15.3%鈉長石、15.1%多硅白云母和13.2%氟硅鈉石,顆粒形態、尺寸無規則。隨燒結溫度升高,試樣燒損、收縮增大,吸水率、氣孔率降低,而密度和強度急劇增大。力學性能上,90%錳渣、5%~10%頁巖、0~5%粉煤灰的配方在1060~1075 ℃燒成的試樣具有較高的抗折強度(24.34~30.72 MPa),可用來制備建筑用燒結磚。
    關鍵詞:錳渣;物相;添加料;燒結性能;強度
    中圖分類號:TU522.1+2;X758        文獻標識碼:A        文章編號:1001-702X(2019)09-0133-05
 
Investigation on sintering properties of electrolytic manganese residue-shale-coal ash raw compacts
SONG Mousheng,ZHANG Jie,YANG Huan,ZHOU Peng,ZHANG Qingjie 
(Department of Physics and Electronic Engineering,Tongren University,Tongren 554300,China)
    Abstract:Using EMR in Tongren city as main raw materials,and adding 0~20% shale and coal ash,the raw mixed compacts are prepared and then sintered at 1030~1075 ℃ for 2 hours,and the corresponding properties are researched. By XRD quantitative analysis,it shows that the main mineral phases of EMR are quartz(20.9%) and calcium sulphate dihydrate(29%),and other albite(15.3%),phengite(15.1%) and malladrite(13.2%),and the shape and size of EMR particles exhibit irregularity. When rising the sintering temperature,the burning loss and shrinkage increased,water absorption and porosity of samples reduced,however their densities and strengths elevated sharply. Considering the mechanical properties,when sintered at 1060~1075 ℃ the samples with the formula containing 90% EMR,5%~10% shale and 0~5% coal ash showed the higher strength(24.34~30.72 MPa),meaning that it can be used for preparing the sintered-brick for building.
    Key words:manganese residue,phase,additive,sintering property,strength
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