摘要
用氧化镁（ＭｇＯ）和磷酸二氢铵（ＮＨ４Ｈ２ＷＰＯ４）为主要原材料，在一定配合比条件下，制备出超早强型磷酸镁水泥（ＭＰＣ）。３ｈ抗压强度达到３９．４ＭＰａ，１ｄ的抗压强度达到５５ＭＰａ。影响ＭＰＣ净浆力学性能的主要因素有：ＮＨ４Ｈ２ＰＯ４与ＭｇＯ的比值；氧化镁的比表面积；水灰比等。
In some ratio, very-high-early-strength MPC can be produced. By using over-fired magnesia (MgO) and mono-am- monium phosphate (NH4H2PO4) as main raw material and borax as retarder. The compressive strength at 3h is 39.4 MPa, the strength at 1d is 55MPa. There are several main factors that influencel mechanical properties of MPC pure paste: NH4H2PO4/ MgO ratio; specific surface area of MgO; water-binder ratio etc.
关键词
磷酸镁水泥
配合比
影响因素
水化产物
MPC
研究
magnesium phosphate cement
mixture ratio
influence factor
hydration product
