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August 2, 2026Construction and Building MaterialsOpen Access

Synergistic effect of DTPA-5Na and FGD gypsum on basic oxygen furnace slag-based cementitious materials

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Authors

XLXuan LingZJZhihan JiangKSKatrin Schollbach

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Overview

Randomized trial examines reactivity improvement in BOF slag, implying enhanced cement performance.

Key Points

  • This research aims to enhance the reactivity of basic oxygen furnace slag through a synergistic activation method using DTPA-5Na and FGD gypsum.
  • Combination of DTPA-5Na and FGD gypsum activation on BOF slag
  • Mineralogical, thermal, and microstructural analyses conducted
  • Assessment of compressive strength and hydration properties at 28 days
  • 1.0 wt% DTPA-5Na increased compressive strength by 140% to 35.8 MPa at 28 days
  • 31% reduction in porosity observed due to synergistic activation
  • Low water demand and superior volume stability indicated through developed hydration model

Cite This Study

Ling et al. (2026) studied this question.

synapsesocial.com/papers/6a6eea811b0468a7eeab2bd6https://doi.org/10.1016/j.conbuildmat.2026.147599
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