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纤维掺量对镍渣-粉煤灰基地聚合物韧性的影响
Effects of Content of Fiber on Toughness of Geopolymer with Nickel Slag-fly Ash
2017年第3期
镍渣;粉煤灰;地聚合物;纤维;增韧优化
Nickel slag;Fly ash;Geopolymer;Fiber;Toughening modification
2017年第3期
1000-4637(2017)03-47-04
国家自然科学基金项目(51502259,51572234);住房和城乡建设部科学技术项目(2015-K4-007);江苏省“六大人才高峰”项目(2016-XCL-070);江苏省生态建材与环保装备协同创新中心项目(GX2015305和CP201506)
徐 俊1,诸华军2,吴其胜2,杨 涛2
1.江苏大学材料科学与工程学院,镇江 212013;2.盐城工学院材料工程学院,224051

徐 俊1,诸华军2,吴其胜2,杨 涛2

徐俊,诸华军,吴其胜,等.纤维掺量对镍渣-粉煤灰基地聚合物韧性的影响[J].混凝土与水泥制品,2017(3):47-49+54.

XU J, CHU H J, WU Q S,et al.Effects of Content of Fiber on Toughness of Geopolymer with Nickel Slag-fly Ash[J].China Concrete and Cement Products,2017(3):47-49+54.

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摘 要:以镍渣和粉煤灰等工业固体废渣为主要原料制备地聚合物,并对其韧性进行优化。考察了粉煤灰对镍渣基地聚合物抗压强度的影响,并通过力学性能测试和扫描电镜观察研究了聚丙烯纤维(PP纤维)对镍渣-粉煤灰基地聚合物韧性的作用。结果表明,粉煤灰的掺入有利于镍渣基地聚合物抗压强度的提高,50℃养护3d和7d时,粉煤灰掺量为50%的镍渣-粉煤灰基地聚合物的抗压强度分别比镍渣基地聚合物提高了120.3%和119.6%。PP纤维能有效改善镍渣-粉煤灰基地聚合物的韧性,当纤维掺量为1.6%时,50℃养护3d和7d的地聚合物比未掺纤维试样的抗折强度提高了12.5%和25.0%,抗冲击功提高了173.7%和190.5%。 Abstract:Nickel slag and fly ash can be used to produce geopolymer and the optimization of the toughness was also studied. The influence of fly ash on the compressive strength of the geopolymer was investigated. The effect of PP fiber on the toughness of the geopolymer was studied by mechanical property test and Scanning Electron Microscope(SEM). The results show that the incorporation of fly ash can improve the compressive strength of the geopolymers. The samples were cured at 50℃ for three days and seven days. When the content of fly ash is 50%, the compressive strength of geopolymers were increased by 120.3% and 119.6%. PP fiber can effectively improve the toughness of the nickel slag-fly ash based geopolymers. When the fiber content is 1.6%, samples were cured under the same conditions for three days and seven days, the flexural strength was improved by 12.5% and 25.0%, and the impact energy was increased by 173.7% and 190.5%.
英文名 : Effects of Content of Fiber on Toughness of Geopolymer with Nickel Slag-fly Ash
刊期 : 2017年第3期
关键词 : 镍渣;粉煤灰;地聚合物;纤维;增韧优化
Key words : Nickel slag;Fly ash;Geopolymer;Fiber;Toughening modification
刊期 : 2017年第3期
DOI :
文章编号 : 1000-4637(2017)03-47-04
基金项目 : 国家自然科学基金项目(51502259,51572234);住房和城乡建设部科学技术项目(2015-K4-007);江苏省“六大人才高峰”项目(2016-XCL-070);江苏省生态建材与环保装备协同创新中心项目(GX2015305和CP201506)
作者 : 徐 俊1,诸华军2,吴其胜2,杨 涛2
单位 : 1.江苏大学材料科学与工程学院,镇江 212013;2.盐城工学院材料工程学院,224051

徐 俊1,诸华军2,吴其胜2,杨 涛2

徐俊,诸华军,吴其胜,等.纤维掺量对镍渣-粉煤灰基地聚合物韧性的影响[J].混凝土与水泥制品,2017(3):47-49+54.

XU J, CHU H J, WU Q S,et al.Effects of Content of Fiber on Toughness of Geopolymer with Nickel Slag-fly Ash[J].China Concrete and Cement Products,2017(3):47-49+54.

摘要
参数
结论
参考文献
引用本文

摘   要:以镍渣和粉煤灰等工业固体废渣为主要原料制备地聚合物,并对其韧性进行优化。考察了粉煤灰对镍渣基地聚合物抗压强度的影响,并通过力学性能测试和扫描电镜观察研究了聚丙烯纤维(PP纤维)对镍渣-粉煤灰基地聚合物韧性的作用。结果表明,粉煤灰的掺入有利于镍渣基地聚合物抗压强度的提高,50℃养护3d和7d时,粉煤灰掺量为50%的镍渣-粉煤灰基地聚合物的抗压强度分别比镍渣基地聚合物提高了120.3%和119.6%。PP纤维能有效改善镍渣-粉煤灰基地聚合物的韧性,当纤维掺量为1.6%时,50℃养护3d和7d的地聚合物比未掺纤维试样的抗折强度提高了12.5%和25.0%,抗冲击功提高了173.7%和190.5%。

Abstract:Nickel slag and fly ash can be used to produce geopolymer and the optimization of the toughness was also studied. The influence of fly ash on the compressive strength of the geopolymer was investigated. The effect of PP fiber on the toughness of the geopolymer was studied by mechanical property test and Scanning Electron Microscope(SEM). The results show that the incorporation of fly ash can improve the compressive strength of the geopolymers. The samples were cured at 50℃ for three days and seven days. When the content of fly ash is 50%, the compressive strength of geopolymers were increased by 120.3% and 119.6%. PP fiber can effectively improve the toughness of the nickel slag-fly ash based geopolymers. When the fiber content is 1.6%, samples were cured under the same conditions for three days and seven days, the flexural strength was improved by 12.5% and 25.0%, and the impact energy was increased by 173.7% and 190.5%.

关键词:
镍渣;粉煤灰;地聚合物;纤维;增韧优化
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(1)粉煤灰的掺入有利于镍渣基地聚合物抗压强度的提高。粉煤灰掺量为50%时,50℃养护3d和7d镍渣-粉煤灰基地聚合物抗压强度分别较镍渣基地聚合物提高了120.3%和119.6%。粉煤灰有效反应成分大、反应活性高,与镍渣混合后形成致密结构有利于地聚合物抗压强度的提高。
(2)纤维的掺入能有效提高镍渣-粉煤灰基地聚合物的韧性。纤维掺量为1.6%时,50℃养护3d和7d试样的抗折强度比未掺纤维试样提高了12.5%和25.0%,抗冲击功提高了173.7%和190.5%。掺入适量纤维的镍渣-粉煤灰基地聚合物受到冲击力作用时,地聚合物基体中的纤维被拉断或拉伸以及纤维从基体中被拉出时克服摩擦力做功均需消耗大量能量,进而降低冲击力对地聚合物的作用,提高其抗断裂能力。
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徐俊,诸华军,吴其胜,.纤维掺量对镍渣-粉煤灰基地聚合物韧性的影响[J].混凝土与水泥制品,2017(3):47-49+54.

XU J, CHU H J, WU Q S,et al.Effects of Content of Fiber on Toughness of Geopolymer with Nickel Slag-fly Ash[J].China Concrete and Cement Products,2017(3):47-49+54.

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