| 脱碳粉煤灰-磷石膏蒸压砖的制备研究 |
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| 引用本文： | 周强武,杨林,张垠,曹建新.脱碳粉煤灰-磷石膏蒸压砖的制备研究[J].贵州大学学报(自然科学版),2009,26(3):100-102,133. |
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| 作者姓名： | 周强武 杨林 张垠 曹建新 |
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| 作者单位： | 贵州大学,化学与化工学院,贵州,贵阳,550003 |
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| 基金项目： | 贵州省科技计划重大专项基金 |
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| 摘 要： | 采用经过浮选碳后的粉煤灰、工业废渣磷石膏、生石灰、骨料为原料制备蒸压砖。实验结果表明：含有残留浮选药剂的脱碳粉煤灰制备蒸压砖是可行的，当脱碳粉煤灰掺入量70％，磷石膏掺入量3％时，在自然养护3d，蒸压温度200℃，保温时间10h的工艺条件下制备蒸压砖，该制品抗压强度为17．5MPa．达到JC239-2001《粉煤灰砖》中MU15的强度指标要求。
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| 关 键 词： | 蒸压条件 脱碳粉煤灰 磷石膏 |
Study on Preparation of Decarburized Fly Ash-phosphogypsum Autoclaved Brick |
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| ZHOU Qiang-wu,YANG Lin,ZHANG Yin,CAO Jian-xin.Study on Preparation of Decarburized Fly Ash-phosphogypsum Autoclaved Brick[J].Journal of Guizhou University(Natural Science),2009,26(3):100-102,133. |
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| Authors: | ZHOU Qiang-wu YANG Lin ZHANG Yin CAO Jian-xin |
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| Institution: | College of Chemistry and Chemical Eengineering;Guizhou University;Guiyang 550003;China |
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| Abstract: | Decarburized fly ash, phosphogypsum, quick lime and aggregate were adopted as material to prepare autoclaved brick. The results show that it is feasible to prepare the brick by decarburized fly ash containing flotation reagent. The compressive strength of the bricks reached 17.5 MPa, with the incorporation of 70% decarburized fly ash, 3% phosphogypsum, and under natural curing for 3 d and autoclave curing for 10 h at 200 ℃. It attains to the JC239-2001 fly ash brick in the intensity of the indicator MUIS. |
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| Keywords: | autoclaved condition decarburized fly ash phosphogypsum |
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