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| 无机胶凝沙漠绿化砖制备及其性质的研究 | |
| 引用本文： | 陈平,邓湘云,董磊,焦永恒,何明生,李德军,李建保.无机胶凝沙漠绿化砖制备及其性质的研究[J].天津师范大学学报(自然科学版),2009,29(4):38-41. |
| 作者姓名： | 陈平 邓湘云 董磊 焦永恒 何明生 李德军 李建保 |
| 作者单位： | 1. 天津师范大学,物理与电子信息学院,天津,300387 2. 天津师范大学,物理与电子信息学院,天津,300387;海南大学材料与化工学院,海南优势资源化工材料应用技术教育部重点实验室,海口,570228 3. 清华大学,材料科学与工程系,北京,100084 4. 海南大学材料与化工学院,海南优势资源化工材料应用技术教育部重点实验室,海口,570228;清华大学,材料科学与工程系,北京,100084 |
| 基金项目： | 国家"863"项目，国家自然科学基金项目，中日合作项目"流动沙丘固定和用于绿化的新型化学材料的研究和青海湖周边示范区的施工方法" |
| 摘 要： | 采用模压成型方式制备沙漠绿化砖,分析无机胶凝剂用量、固化剂浓度、固化时间3个因素对绿化砖抗压强度、密度和吸水率的影响,从而确定最佳的工艺参数.正交实验结果表明：制备每块绿化砖的最佳的工艺参数为沙子12 kg,无机胶凝剂1 500 mL,固化剂浓度2.5 mol/L,固化时间45 min.但在实际生产过程中,考虑到节约成本和效率问题,固化剂浓度可以降低到1 mol/L、固化时间缩短为5 min.同时证明,添加一定量的膨润土,可以在保证抗压强度不受影响的情况下有效达到节约成本的目的. |
| 关 键 词： | 无机胶凝 沙漠绿化砖 抗压强度 膨润土 |
Research on preparation and properties of inorganic cementitious desert greening bricks |
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| CHEN Ping,DENG Xiangyun,DONG Lei,JIAO Yongheng,HE Mingsheng,LI Dejun,LI Jianbao.Research on preparation and properties of inorganic cementitious desert greening bricks[J].Journal of Tianjin Normal University(Natural Science Edition),2009,29(4):38-41. | |
| Authors: | CHEN Ping DENG Xiangyun DONG Lei JIAO Yongheng HE Mingsheng LI Dejun LI Jianbao |
| Institution: | CHEN Ping , DENG Xiangyun , DONG Lei , JIAO Yongheng , HE Mingsheng , LI Dejun , LI Jianbao(1. College of Physics and Electronic Information, Tianjin Normal University, Tianjin 300387, China;2. Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials of Ministry of Education , School of Materials and Chemical Engineering, Hainan University, Haikou, 570228, China;3. Department of Material Science and Engineering, Tsinghua University, Beijing 100084, China) |
| Abstract: | Greening bricks are prepared using the compression molding method, the influences of three factors including gelling agent dosage, curing agent concentration and curing time on the compressive strength, density and water absorption of the greening bricks are analyzed, so that the optimum process parameters are confirmed. Orthogonal experimental result shows that 12 kg sand, 1 500 mL sodium silicate, curing agent concentration of 2.5 mol/L and curing time of 45 rain are the optimum process parameters. Concerning the cost and efficiency in practical production, however, reasonable process parameters are 12 kg sand, 1 500mL sodium silicate, curing agent concentration of 1 mol/L and curing time of 5 min. With unaffected compressive strength, the purpose of cost saving can be achieved by addition a certain amount of bentonie. |
| Keywords: | inorganic cementitious desert greening bricks compressive strength bentonite |
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