混凝土2024,Issue(1) :124-127,133.DOI:10.3969/j.issn.1002-3550.2024.01.024

增硅与养护温度对底灰碱激发材料性能影响的研究

Effect of silicon addition and curing temperature on properties of bottom ash alkali-activated materials

王蔚 吴庆 戴广民 马弘历 于文剑 陆寅杰 马士良
混凝土2024,Issue(1) :124-127,133.DOI:10.3969/j.issn.1002-3550.2024.01.024

增硅与养护温度对底灰碱激发材料性能影响的研究

Effect of silicon addition and curing temperature on properties of bottom ash alkali-activated materials

王蔚 1吴庆 1戴广民 1马弘历 1于文剑 1陆寅杰 1马士良2
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作者信息

  • 1. 江苏科技大学 土木工程与建筑学院,江苏 镇江 212000
  • 2. 镇江高校园区指挥部,江苏 镇江 212000
  • 折叠

摘要

为了探索效益更高的城市生活垃圾焚烧底灰碱激发材料的制备方式,对底灰碱激发材料开展了配合比设计、强度试验及微观分析,分析了养护温度及不同配合比底灰碱激发试件抗压强度发展的影响,并结合XRD、SEM-EDS、FT-IR等微观检测技术分析了聚合反应机理.结果表明:当底灰粒径不大于 1.25 mm时,使用体积比为 2∶1的水玻璃溶液与氢氧化钠溶液,底灰碱激发试件的抗压强度达到最优;密封条件下复合养护温度更有利于聚合反应的进行与聚合产物的生成.

Abstract

In order to explore the preparation method of bottom ash alkali-activated materials for municipal solid waste incineration with higher efficiency,the mix proportion design,strength test and microscopic analysis of bottom ash alkali-activated materials were carried out.The effects of curing temperature and compressive strength development of bottom ash alkali-activated specimens with different mix proportions were analyzed.The polymerization mechanism was analyzed by XRD,SEM-EDS and FT-IR.The results show that when the particle size of bottom ash is less than 1.25 mm,the compressive strength of the bottom ash alkali-activated specimens reaches the best when the volume ratio of sodium silicate solution and sodium hydroxide solution is 2∶1.The composite curing temperature under sealing condition is more conducive to the polymerization reaction and the formation of polymerization products.

关键词

底灰/碱激发/抗压强度/养护温度/聚合反应

Key words

bottom ash/alkali-activated/compressive strength/curing temperature/polymerization reaction

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基金项目

江苏省研究生科研与实践创新计划项目(KYCX21_3493)

国家自然科学基金(52108455)

出版年

2024
混凝土
中国建筑东北设计研究院有限公司

混凝土

CSTPCD北大核心
影响因子:0.844
ISSN:1002-3550
参考文献量19
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