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Journal ArticleDOI

Performance and hydration study of ultra-fine sulfoaluminate cement-based double liquid grouting material

TL;DR: In this article, a double liquid grouting material (ultra-fine sulfoaluminate cement-based grouting materials) was studied with micro-calorimeter, thermal-thermogravimetric (DTA-TG) analysis, scanning electron microscopy and energy spectrum technique (SEM-DES), marsh cone flow time, setting time, compressive strength and expansion/shrinkage tests.
About: This article is published in Construction and Building Materials.The article was published on 2017-02-01. It has received 50 citations till now. The article focuses on the topics: Slurry & Compressive strength.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the phase and strength development of calcium sulfoaluminate-belite (CSAB) cement pastes with different amounts of gypsum and water were investigated.

73 citations


Cites methods from "Performance and hydration study of ..."

  • ...[13] used a finely ground CSA cement for a grouting application....

    [...]

Journal ArticleDOI
TL;DR: In this article, a novel grouting material based on magnesium phosphate cement (MPC) was prepared by two-component grouting method with additions of fly ash (FA) and ground granulated blast furnace slag (GGBS).

64 citations

Journal ArticleDOI
TL;DR: In this paper, the main performance defects of grouts for shield tunnel were as follows: lime-based grouts had low strength, cement-based girders had poor fluidity, and double liquid groughs had poor durability.

61 citations

Journal ArticleDOI
TL;DR: In this article, the effect of the S-ettringite on hydration, microstructure and properties of CSA cement-based grouting materials (CBGM) was experimentally investigated.

49 citations

Journal ArticleDOI
TL;DR: In this article, the effects of lithium carbonate on the properties of dual liquid high water material have been studied through micro testing, including hydration heat tests, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis.

46 citations

References
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Journal ArticleDOI
TL;DR: In this paper, four promising alternative binders available as alternatives to Portland cement are discussed, namely calcium aluminate cement, calcium sulfoaluminate cements, alkali-activated binders, and supersulfated cements.

1,237 citations

Journal ArticleDOI
TL;DR: In this article, the hydration of two CSA cements has been investigated experimentally and by thermodynamic modelling between 1h and 28 days at w/c ratios of 0.72 and 0.80, respectively.

568 citations

Journal ArticleDOI
TL;DR: In this article, the hydration process and microstructural features of five calcium sulfoaluminate (CSA) cements and a ternary mixture including also ordinary Portland cement (OPC) were studied with simultaneous differential thermal-thermogravimetric (DTA-TG) analysis, mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), and expansion/shrinkage tests.
Abstract: The present work studies the hydration process and microstructural features of five calcium sulfoaluminate (CSA) cements and a ternary mixture including also ordinary Portland cement (OPC). The pastes were studied with simultaneous differential thermal-thermogravimetric (DTA-TG) analysis, mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), and expansion/shrinkage tests. The DTA-TG analysis confirmed the role of the hydration reactions involving the main CSA clinker constituent, tetracalcium trialuminate sulfate, which produced (i) ettringite when combined with lime and calcium sulfate, (ii) ettringite and aluminum hydroxide in the presence of calcium sulfate alone, and (iii) monosulfate and aluminum hydroxide in the absence of both lime and calcium sulfate. The MIP and SEM were able to discriminate between expansive (ternary mixture and CSA cement containing 50% gypsum) and non-expansive cements. Expansive cement pastes had (i) a nearly unimodal pore size distribution shifted toward higher radii and (ii) ettringite crystals smaller in size during the first day of curing. In a SEM image of a hardened paste of the CSA cement containing 50% gypsum, a stellate ettringite cluster was observed.

189 citations

Journal ArticleDOI
TL;DR: In this paper, a newly developed jet grouting technology for the instant solidification of soft ground is presented, where the basic principles of the twin jet method are introduced and sodium silicate (water-glass) is selected as the binder to accelerate the hardening process of an admixture of grout and soil.

165 citations