矿渣碱激发胶凝材料固化盐渍土试验研究_《混凝土与水泥制品》杂志社

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矿渣碱激发胶凝材料固化盐渍土试验研究

Experimental Study on Solidification of Saline Soil Using Alkali-activated Slag Materials

２０18年第9期

盐渍土；矿渣；碱激发；抗压强度；水稳定性；固化土

Saline soil; Slag; Alkali activated; Compressive strength; Water stability; Solidified soil

２０18年第9期

1000-4637（2018）09-98-04

国家自然科学基金项目（51502259、51572234）；江苏省产学研前瞻性联合研究项目（BY2016065-26）；江苏高校品牌专业建设工程项目（PPZY2015A025）；江苏省“六大人才高峰”项目（2016-XCL-070）资助

田亮1,2，姚晓1，董洁2，戴硕2，诸华军2，杨涛2，吴其胜2

1.南京工业大学材料科学与工程学院，210009；2.盐城工学院材料科学与工程学院，224051

田亮1,2，姚晓1，董洁2，戴硕2，诸华军2，杨涛2，吴其胜2

田亮,姚晓,董洁,等.矿渣碱激发胶凝材料固化盐渍土试验研究[J].混凝土与水泥制品,2018(9):98-101.

TIAN L,YAO X,DONG J,et al.Experimental Study on Solidification of Saline Soil Using Alkali-activated Slag Materials[J].China Concrete and Cement Products,2018(9):98-101.

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1000

摘要：为解决盐渍土路基铺设存在的溶陷、变形等问题，采用矿渣碱激发胶凝材料固化的方法对盐渍土的综合性能进行优化。通过击实试验和无侧限抗压强度试验研究了矿渣碱激发胶凝材料对盐渍土抗压强度的影响，并利用XRD和SEM分析了试样的物相组成和微观形貌。结果表明，矿渣碱激发胶凝材料固化盐渍土效果显著，掺入适量矿渣碱激发胶凝材料盐渍土的抗压强度和水稳定性显著改善，反应产物中C-S-H凝胶相含量明显增多，形成了结构稳定的胶凝-网状混合结构。水化反应生成了新的水化产物片状晶体和针棒状晶体，形成了C-S-H凝胶相和钙矾石的结构。 Abstract: To solve the problem of subsidence and deformation in the paving of saline soil roadbed, the solidification through alkali-activated slag is adopted to improve the engineering performance of the saline soil. The compaction test and unconfined compressive strength test are used to study the effects of alkali-activated slag on the compressive strength of saline soil, and the X-ray diffraction (XRD) and scanning electron microscope (SEM) are used to characterize the phase composition and microstructure of samples. The results show that the solidified roles of alkali-activated slag is remarkable. A moderate amount of alkali-activated slag can effectively improve the compressive strength and the water stability of saline soil. The morphology of the C-S-H gel phase and ettringite is assoiciated with the crystal plate and needle stick crystals, respectively.

英文名 : Experimental Study on Solidification of Saline Soil Using Alkali-activated Slag Materials

刊期 : ２０18年第9期

关键词 : 盐渍土；矿渣；碱激发；抗压强度；水稳定性；固化土

Key words : Saline soil; Slag; Alkali activated; Compressive strength; Water stability; Solidified soil

刊期 : ２０18年第9期

DOI :

文章编号 : 1000-4637（2018）09-98-04

基金项目 : 国家自然科学基金项目（51502259、51572234）；江苏省产学研前瞻性联合研究项目（BY2016065-26）；江苏高校品牌专业建设工程项目（PPZY2015A025）；江苏省“六大人才高峰”项目（2016-XCL-070）资助

作者 : 田亮1,2，姚晓1，董洁2，戴硕2，诸华军2，杨涛2，吴其胜2

单位 : 1.南京工业大学材料科学与工程学院，210009；2.盐城工学院材料科学与工程学院，224051

田亮1,2，姚晓1，董洁2，戴硕2，诸华军2，杨涛2，吴其胜2

田亮,姚晓,董洁,等.矿渣碱激发胶凝材料固化盐渍土试验研究[J].混凝土与水泥制品,2018(9):98-101.

TIAN L,YAO X,DONG J,et al.Experimental Study on Solidification of Saline Soil Using Alkali-activated Slag Materials[J].China Concrete and Cement Products,2018(9):98-101.

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摘要

参数

结论

参考文献

引用本文

Abstract: To solve the problem of subsidence and deformation in the paving of saline soil roadbed, the solidification through alkali-activated slag is adopted to improve the engineering performance of the saline soil. The compaction test and unconfined compressive strength test are used to study the effects of alkali-activated slag on the compressive strength of saline soil, and the X-ray diffraction (XRD) and scanning electron microscope (SEM) are used to characterize the phase composition and microstructure of samples. The results show that the solidified roles of alkali-activated slag is remarkable. A moderate amount of alkali-activated slag can effectively improve the compressive strength and the water stability of saline soil. The morphology of the C-S-H gel phase and ettringite is assoiciated with the crystal plate and needle stick crystals, respectively.

关键词:

盐渍土；矿渣；碱激发；抗压强度；水稳定性；固化土

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