摘要
为了实现磷固废再生建材的循环利用,提升关键性能指标,研究利用纳米材料改性磷固废石膏制备了新型磷建筑石膏。实验结果表明,纳米CaCO_(3)的掺入一定程度可改善磷石膏的流动性能、力学性能以及吸水性能;但凝结时间与流动性需要额外外加剂的辅助平衡;同时,研究认为最佳纳米CaCO_(3)的掺量为0.8%,此时抗折强度、抗压强度分别取值8.46、25.833 MPa;软化系数达到0.763。研究有助于揭示纳米CaCO_(3)与磷固废再生建材之间的相互作用机制,为纳米材料在再生建材领域的应用提供理论基础。
In order to achieve the recycling of phosphorus solid waste recycled building materials and to improve the key performance indicators,the study prepared a new phosphorus building gypsum by modifying phosphorus solid waste gypsum with nanomaterials.The experimental results show that the addition of nano-cacO_(3) can improve the flow properties,mechanical properties and water absorption of phosphogypsum to a certain extent.However,the setting time and fluidity need the auxiliary balance of additional admixtures.At the same time,the optimal dosage of nano-CaCO_(3) is 0.8%,and the bending strength,compressive strength and compressive strength are 8.46 MPa and 25.833 MPa respectively.The softening coefficient reached 0.763.The study is helpful to reveal the interaction mechanism between nano-CaCO_(3) and phosphate-solid waste recycled building materials,and provide a theoretical basis for the application of nano-materials in the field of recycled building materials.
作者
刘豪杰
Liu Haojie(China Building Materials Industry Geological Exploration Center Ningxia Corps,Yinchuan Ningxia 750021,China)
出处
《山西化工》
2025年第8期32-34,共3页
Shanxi Chemical Industry
关键词
磷石膏
纳米级超细碳酸钙
无机化工
再生建材
X射线衍射分析
phosphogypsum
nanometer superfine calcium carbonate
inorganic chemical industry
recycled building materials
X-ray diffraction analysis
作者简介
刘豪杰,男,1998年出生,毕业于齐鲁工业大学,本科,助理工程师,研究方向为化工。
