使用花花 (Pleurotus florida) 制造热绝缘使用花花制造热绝缘
Sally A Ali1, Marwa Kamal Fahmy2, Nasser Zouli3
1Department of Botany and Microbiology, Faculty of Science, Helwan University, Cairo 11795, Egypt.
Materials (Basel, Switzerland)
|July 29, 2023
概括
研究人员使用已使用的材料 (SMM) 作为热绝缘体制造了轻质. 整合SMM提高了建筑物的能效,提供了可持续的建筑解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 传统具有较高的导热率,导致建筑气候控制的能源消耗显著.
- 消耗的材料 (SMM) 是一个丰富的农业废物流,具有材料创新的潜力.
研究的目的:
- 调查利用废材料 (SMM) 作为制造中的轻量级隔热元件的可行性.
- 评估不同SMM比例对粘土的物理机械性能和热性能的影响.
- 评估通过在建筑模拟中使用SMM增强来实现的潜在节能.
主要方法:
- 粘土是用5个不同的SMM替代百分比 (重量0-15%) 制造的.
- 块在700,800,900°C的温度下燃烧,以诱导SMM分解的孔隙形成.
- 物理机械性质 (压力强度,密度,吸水,收缩,多孔性) 和导热率根据标准代码进行测量.
主要成果:
- 增加的SMM含量导致压力强度,散装密度和导热率下降.
- 较高的SMM比例导致水的吸收,收缩和明显的孔隙性增加.
- 模拟模型预测使用这些轻质的建筑物能耗大幅降低 (高达29.23%).
结论:
- 使用的材料 (SMM) 可以有效地纳入粘土,以创建轻量级的绝缘材料.
- 添加SMM以降低机械强度的代价增强了绝热性能,需要仔细考虑设计.
- 在中使用SMM提供了一条有希望的废物回收和提高建筑能效的途径.
相关概念视频
Thermal Insulation in Masonry Walls
147
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....
147
Bricks
113
Bricks, a fundamental building material, are crafted from fired clay and exhibit a range of shapes, sizes, and colors. The production process starts with extracting local clay or shale, which is then crushed, ground, and screened for a fine texture. The refined material is blended with water, creating a pliable mixture that can be formed into bricks using one of three processes: soft mud, dry press, or stiff mud methods.
Soft mud bricks are shaped in molds with high moisture content and can be...
Soft mud bricks are shaped in molds with high moisture content and can be...
113
Brick Masonry
133
Brick masonry uses bricks as the building blocks and involves building walls from individual bricks laid in mortar. The basic building block of brick masonry is the wythe, a vertical layer of bricks with a thickness of one brick. Within a wythe, bricks can be laid in various courses or patterns, with the most common being the stretcher course, where bricks are laid with their long edge horizontal and face parallel to the wall.
For thicker walls, multiple wythes are bonded together using...
For thicker walls, multiple wythes are bonded together using...
133
Masonry Cavity Walls
1.0K
Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction...
Maintaining a clean cavity during construction...
1.0K
Manufacture of Concrete Masonry Units
125
The process of manufacturing concrete masonry units begins by mixing stiff concrete composed of Portland cement, aggregates, and water. This mixture is then poured into metal molds. To ensure the concrete settles uniformly and to avoid separation of its components, the mixture in the molds is subjected to vibration. Shortly after, the still-wet blocks are removed from the molds and placed on racks.
These wet blocks are then transported for curing, which can occur in one of two environments: a...
These wet blocks are then transported for curing, which can occur in one of two environments: a...
125
Brick Durability, Strength, and Appearance
248
Brick durability, strength, and appearance are crucial factors in construction, influencing the choice of bricks for specific applications. The process of freeze-thaw, for instance, significantly affects brick durability. This phenomenon occurs when water absorbed by a brick expands as it freezes, potentially causing damage when it melts and refreezes. Bricks are graded for durability: SW-grade bricks are the most durable, offering high strength and low water absorption, followed by MW-grade...
248


