Effect of Alkali Content on Strength and Microstructure of GGBFS Paste

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Mohd. Nadeem Qureshi
Mohd. Nadeem Qureshi
σ
Somnath Ghosh
Somnath Ghosh
α Jadavpur University Jadavpur University

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Effect of Alkali  Content on Strength and Microstructure of GGBFS Paste

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Abstract

The effect of alkali content (% K2O + %Na2O) on the mechanical properties of alkali activated blast furnace paste has been investigated. The paper presents the study on workability, compressive strength, split tensile strength and microstructure of alkali activated blast furnace slag paste specimens prepared by using of sodium silicate and potassium hydroxide solution as activators. The experimental results have indicated that the compressive strength, split tensile strength and workability of the specimens is significantly affected by the alkali content of the mix. The highest compressive strength achieved was 51.44 MPa. The mineralogical and micro structural changes were studied using XRD and scanning electron microscopy (SEM).

References

7 Cites in Article
  1. S Wang,K Scrivener,P Pratt (1994). Unknown Title.
  2. Tatiana Bakharev,Jay Sanjayan,Yi-Bing Cheng (1999). Alkali activation of Australian slag cements.
  3. E Osborn,R Devries,K Gee,H Kraner (1954). Optimum composition of blast furnace slag as deduced from liquidus data for the quaternary system CaO-MgO-Al2O3-SiO2.
  4. V Glukhovsky,V Pakhomov (1978). Slag-Alkali Cements and Concretes.
  5. C Shi,Y Li,X Tang (1989). A preliminary investigation on the activation mechanism of granulated phosphorus slag.
  6. F Collins,J Sanjayan (1998). Early Age Strength and Workability of Slag Pastes Activated by NaOH and Na2CO3.
  7. C Shi,Y Li (1989). Investigation on some factors affecting the characteristics of alkali-phosphorus slag cement.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Mohd. Nadeem Qureshi. 1970. \u201cEffect of Alkali Content on Strength and Microstructure of GGBFS Paste\u201d. Global Journal of Research in Engineering - E: Civil & Structural GJRE-E Volume 13 (GJRE Volume 13 Issue E1): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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The effect of alkali content (% K2O + %Na2O) on the mechanical properties of alkali activated blast furnace paste has been investigated. The paper presents the study on workability, compressive strength, split tensile strength and microstructure of alkali activated blast furnace slag paste specimens prepared by using of sodium silicate and potassium hydroxide solution as activators. The experimental results have indicated that the compressive strength, split tensile strength and workability of the specimens is significantly affected by the alkali content of the mix. The highest compressive strength achieved was 51.44 MPa. The mineralogical and micro structural changes were studied using XRD and scanning electron microscopy (SEM).

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Effect of Alkali Content on Strength and Microstructure of GGBFS Paste

Mohd. Nadeem Qureshi
Mohd. Nadeem Qureshi Jadavpur University
Somnath Ghosh
Somnath Ghosh

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