| 摘要: |
| 将废弃的阴极射线管玻璃(CRT玻璃)磨碎后作为细、粗骨料，分别以质量分数0%，25%，50%，75%，100%取代重晶石细骨料或以质量分数0%，10%，20%，30%取代5～10mm的重晶石粗骨料掺入重晶石混凝土中，并以粉煤灰作为矿物掺合料，研究CRT玻璃骨料对重晶石混凝土工作性能、力学性能、碱骨料反应、Pb浸出值和对γ射线屏蔽能力的影响.结果表明：随着CRT玻璃骨料取代率的增加，重晶石混凝土的坍落度、Pb浸出值逐渐增大，抗压强度、劈拉强度、弹性模量、防辐射性能逐渐减小.当用CRT玻璃骨料取代质量分数为10%的5～10mm的重晶石粗骨料或25%的重晶石细骨料时，重晶石混凝土各种性能良好. |
| 关键词: 阴极射线管玻璃 重晶石混凝土 防辐射 性能 |
| DOI：103969/j.issn1007 9629201602027 |
| 分类号: |
| 基金项目:湖南省自然科学基金资助项目(14JJ2083)；湖南省科技厅重点研发计划项目(2015JC3090) |
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| Effect of Utilizing Recycled Cathode Ray Tube Glass as Aggregate in Barite Concrete |
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SHI Jianjun1, DING Dexin1, LI Jianxin2, LIU Hualiang2, ZHANG Zhiheng2, LIU Quan2
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1.School of Resources and Safety Engineering, Central South University, Changsha 410083, China;2.School of Urban Construction, University of South China, Hengyang 421001, China
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| Abstract: |
| Fly ash were used was mineral admixtures, the work performance, mechanical properties，alkali silica reaction(ASR) expansion，lead leaching properties and γ ray shielding properties of barite concrete with ground cathode ray tube funnel glass sand fine aggregate and coarse aggregate(510mm) at mass replacement rate of 0%, 25%, 50%, 75%, 100% and 0%, 10%, 20%, 30% were investigated. The results show that the slump, lead leaching properties increase and the compressive strength, splitting tensile strength, static modulus of elasticity and γ ray shielding properties of barite concrete decrease with the increase of CRT glass aggregate replacement rate. The barite concrete with ground cathode ray tube glass sand fine aggregate of 25% or coarse aggregate(510mm) of 10% has good properties. |
| Key words: cathode ray tube(CRT) glass barite concrete radiation shielding property |
