Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Effect of MgO in Synthesis of Alinite Clinker

Alinite계 클링커 제조(製造) 시 MgO의 영향(影響)

  • Published : 2009.06.27
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Abstract

The effect of MgO in synthesis of alinite clinker was investigated. Clinker of alinite composition ratio and alintite clinker substituted for MgO of 3.77% were sintered at $760^{\circ}C$ and between $800^{\circ}C$ and $1,400^{\circ}C$ at the interval of $100^{\circ}C$. Synthesized phases and hydration heat of alinite clinker with MgO and without MgO were then investigated. As a result, alinite, CCA, ${\beta}-C_2S$ and f-CaO phases are synthesized in alinite clinker without MgO sintered at $1,300^{\circ}C$, while only alinite phase is synthesized in alinite clinker with MgO sintered at $1,300^{\circ}C$ with the highest synthesis rate. Heat evolution of alinite clinker with MgO has no induction period.

Alinite계 클링커 합성 시 MgO의 영향에 대해 검토하였다. Alinite 조성비 및 Alinite 조성비에 MgO를 3.77% 대체하여 $760^{\circ}C$ 및 $800^{\circ}C$에서 $1,400^{\circ}C$까지 $100^{\circ}C$ 간격으로 3시간 열처리하여 합성 상 및 수화열을 측정하였다. MgO를 첨가하지 않은 경우, $1,300^{\circ}C$에서 alinite, CCA와 함께 ${\beta}-C_2S$상과 f-CaO가 다량 존재하였으나, MgO를 첨가한 경우, $1,300^{\circ}C$이상에서 alinite 상만이 존재하였으며, $1,300^{\circ}C$에서 가장 높은 형성률을 보였다. 또한, MgO를 첨가한 경우, OPC에 비해 유도기를 거치지 않은 수화거동을 보였다.

Keywords

References

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