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 ${eta}-C_2S$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.
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, ${eta}-C_2S$ 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.
