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April 1, 2026Cement Science and Concrete Technology0 citationsOpen Access

Studies on Design of Limestone Calcined Clay Cement

SKSae KondoYOYoshifumi OHGIYHYoshifumi HOSOKAWA

Key Points

  • The aim is to explore the optimal design of limestone calcined clay cement (LK) focusing on the influence of various factors on compressive strength and CO2 emissions.
  • Utilized response surface methodology to analyze the effects of calcined kaolin purity, LSP ratio, MK ratio, SO3 content, and C3S content.
  • Determined the optimal mix for LK cement to achieve desired properties.
  • Evaluated the compressive strength and CO2 emissions in concrete mixtures.
  • Identified optimal proportions: C3S at 61.8%, SO3 at 2.0%, MK between 27-30%, and LSP between 14-16%.
  • Found that compressive strength of LK cement is comparable to that of blast furnace cement B (BB).
  • Confirmed that CO2 emissions of the LK cement are lower than traditional cement mixtures.

Abstract

石灰石 - 焼成粘土セメント(lk) の設計について、焼成カオリンのキャラクター( 純度、ブレーン比表面積 )、lk 中の焼成カオリン(mk)比率、石灰石(lsp)比率、so3 量、基材セメントのc3s比率を因子 として、応答曲面法を中心に検討した。得られた応答局面法によるモデルから、圧縮強さが高炉セメントb 種(bb)同等であり、co2排出量が少ないセメント配合として、c3s=61.8%、so3=2.0% のもと、mk=27~30%、lsp=14~16%を導出した。この配合をもとにしたlk をコンクリートにて評価した結果、圧縮強度およびco2排出量は Bbと同等であった。

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Cite This Study

Kondo et al. (2026) studied this question.

synapsesocial.com/papers/69cd79e15652765b073a6c8chttps://doi.org/10.14250/cement.79.104
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