Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Influence of Mixing Factors on the Early-Age Properties of Magnesium Potassium Phosphate Cement Mortar

마그네슘 인산칼륨 시멘트 모르타르의 배합요인이 초기재령 물성에 미치는 영향

  • 강석표 (우석대학교 건축.인테리어디자인학과) ;
  • 김재환 ((주)에이엠에스엔지니어링)
  • Received : 2014.12.23
  • Accepted : 2015.05.18
  • Published : 2015.05.30
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Abstract

In early applications of Magnesia-phosphate cements (MPCs) in civil repair engineering, ammonium dihydrogen phosphate(ADP) was usually used as the phosphate component. the ADP-based MPC can be termed as magnesium ammonium phosphate cement (MAPC), However, as the byproduct of the reaction forming struvite, ammonium gas would generate an unpleasant odor, leading to attempts to replace ADP by potassium dihydrogen phosphate(KDP), The KDP based MPC can be termed as magnesium potassium phosphate cement(MKPC). The properties of magnesium potassium phosphate cement (MKPC) mortars with different potassium phosphate to magnesia (KDP/MgO) weight ratios and water to binder (W/B) weight ratios have been investigated. The experimental results show that both KDP/MgO and W/B ratios have large influence on the setting time and mechanical properties of MKPC mortars. Therefore, the formulation has to be optimized in terms of the workability, performance, as well as cost consideration.

Keywords

Acknowledgement

Supported by : 중소기업청

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