基于通过粉巩固造获得的二氧化基的陶热绝缘体
Cinthya Alvarado1, Hernán Alvarado-Quintana2, Raúl Siche3
1Carrera de Ingeniería Civil, Facultad de Ingeniería, Universidad Privada del Norte, Trujillo 13011, Peru.
Materials (Basel, Switzerland)
|June 10, 2023
概括
这项研究优化了二氧化陶中的玉米粉含量,以获得更好的隔热. 30%的粉混合物产生了优越的性能,用于在寒冷的气候节能住房.
科学领域:
- 材料科学 材料科学 材料科学
- 陶工程 陶工程 陶工程
- 可持续建筑材料 可持续建筑材料
背景情况:
- 优化住房的能源效率对于减少环境影响和提高居住者的舒适性至关重要.
- 开发先进的绝热材料是实现这些能源效率目标的关键.
- 基于二氧化的陶由于其固有的多孔性,因此具有隔热潜力.
研究的目的:
- 为了研究不同玉米粉百分比对二氧化基多孔陶的物理力学和微观结构性质的影响.
- 确定最佳的玉米粉含量,以制造有效的绝热陶.
- 评估这些材料对于住房应用的适用性,特别是在寒冷的地区.
主要方法:
- 使用粉巩固造技术制造以二氧化为基础的多孔陶.
- 在二氧化矿混合物中包括玉米粉的百分比为0%,10%,20%,30%和40%.
- 表面多孔性,导热性,直径压力强度和吸水性的特征.
主要成果:
- 玉米粉含量显著影响二氧化基陶的表面多孔性.
- 通过含有30%玉米粉的混合物实现了最佳性能.
- 这种优化陶的导热率为0.0984 W/m·K,表面孔隙率为57.88%,吸水率为58.45%,压力强度为3.45 MPa.
结论:
- 通过粉巩固造以30%的玉米粉制成的二氧化基陶显示出出色的绝热性能.
- 这种材料有效地提高了住宅的热舒适度和能源效率,特别是在寒冷的气候下.
- 该研究强调了使用玉米粉作为孔形成剂在开发先进建筑材料中的潜力.
相关概念视频
Thermal Insulation in Masonry Walls
154
In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
154
Strength and Heat of Hydration
276
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
276


