在低碳水泥中可持续地应用煤炭气化过程中的废弃物残留物:多尺度评估,水化行为,机械性能和环境评估
Ziyang Hu1, Xiaowei Gu1, Xu Wang1
1Liaoning Institute of Technological Innovation in Solid Waste Utilization, Northeastern University, Shenyang 110819, China; Science and Technology Innovation Center of Smart Water and Resource Environment, Northeastern University, Shenyang 110819, China; School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China.
Environmental research
|February 7, 2026
概括
磨提高了复合水泥煤气化渣 (CGS) 的反应性. 最佳的氧化水平提高了水分和强度,减少了对环境的影响和可持续建筑材料的成本.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
背景情况:
- 煤气化废渣 (CGS) 为可持续建筑材料提供了潜力.
- 了解CGS激活及其对水泥水化的影响至关重要.
- 目前关于在水泥中使用CGS的磨机制的知识有限.
研究的目的:
- 为了研究CGS激活通过磨复合水泥.
- 为了阐明研磨参数,水分和材料特性之间的关系.
- 优化CGS利用,以提高水泥性能和可持续性.
主要方法:
- 制备基于CGS的复合水泥,具有不同的磨参数.
- 系统地调查CGS激活,水化动力学和微观结构的发展.
- 机械性能评估,可持续性指数,成本和经济指数.
主要成果:
- 性研磨有效地激活了CGS的潜在反应性.
- 氧化的最佳度促进了水合和强度;过量抑制了它.
- 通过AFt和C-(A) -S-H凝,SH-2组获得了46.8 MPa的压力强度 (32.20%的增加),增强了密度.
- 可持续性指数,成本和经济指数均出现显著下降.
结论:
- 研磨为复合水泥中CGS激活提供了机械基础.
- 优化CGS利用导致改善机械性能和减少环境足迹.
- 这些发现支持从固体废物中开发可持续建筑材料.
相关概念视频
Hydration of Cement
953
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
953
Sustainable Development
15.2K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
15.2K
Environmental Applications of Microorganisms
1.2K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.2K
High-Performance Liquid Chromatography: Elution Process
1.6K
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
1.6K
Causes of Social Behavior II: Cognitive Processes
210
Cognitive processes affect social behavior by guiding how individuals perceive, interpret, and respond to social stimuli. These mental processes enable individuals to assess others' behaviors, attribute causes to their actions, and form expectations based on past experiences.Causes of Behavior and Social JudgmentsIndividuals determine the causes of others' behaviors by distinguishing between personal traits and external circumstances. For example, if a friend frequently arrives late, an...
210
Aqueous Solutions and Heats of Hydration
18.0K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
18.0K


