开发一个环保的墙壁绝缘层,利用包装工业的废物
Abdul Kareem K Alsaffar1, Saif S Alquzweeni1, Lubna R Al-Ameer2
1Engineering Faculty, University of Babylon, Babylon, Iraq.
Heliyon
|November 30, 2023
概括
这项研究开发了一种由回收纸板制成的环保绝缘材料,该材料具有出色的热和声学性能. 虽然有效,但其低曲强度需要进一步研究结构应用.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续工程 可持续工程
- 建筑物理 建筑物理
背景情况:
- 有效的隔热对于降低建筑能耗和二氧化碳排放至关重要.
- 目前的绝缘材料面临着与环境影响,健康问题和处置有关的挑战.
- 需要可持续,负担得起和可生物降解的绝缘替代品.
研究的目的:
- 使用废纸板开发一个环保的绝缘材料.
- 评估开发材料的导热性,隔音和机械性能.
主要方法:
- 废纸板被收集,清洁,浸泡,碎,并成层.
- 该材料在75°C的通风烤箱中干燥.
- 测试了导热,隔音,红外成像和抗性.
主要成果:
- 开发的纸板绝缘材料具有0.039W/m.K.的低导热率 (λ).
- 隔音性能优于商用聚氨酸酸盐,降低噪声从80到58dB.
- 与商业材料相比,曲强度是一个限制 (0.6 MPa).
结论:
- 回收纸板可以转化为有效的隔热和隔音材料.
- 该材料为传统绝缘提供了一个可持续和可生物降解的替代品.
- 建议进行进一步的研究,通过结合纤维或水泥材料来提高曲强度.
相关概念视频
Thermal Insulation in Masonry Walls
124
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....
124
Design Example: Sustainability in Concrete Building
169
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
169
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
Composite Masonry Walls
1.2K
Composite masonry walls combine multiple wythes of the same or different masonry materials to create a unified structure. These walls feature wythes that are bonded together either through mortar-filled collar joints, grouted spaces, or more commonly, with rigid metal ties and reinforcements, with the use of masonry header units being rare. Metal ties are preferred because they effectively minimize water penetration, as these walls primarily absorb moisture and then release it into the...
1.2K
Masonry Curtain Walls
1.1K
Masonry curtain walls employ brick or stone veneers supported by the building's structure to form an external cladding system that is both aesthetically appealing and functional. These walls are erected through two principal techniques, first by traditional layering of masonry units and second by using prefabricated panels. Traditional construction relies on steel shelf angles attached to the spandrel beam for support, with high-bond mortars ensuring secure attachment of masonry veneer...
1.1K
Cavity Drainage and Flashings in Masonry walls
86
Typically, a cavity wall consists of two wythes separated by a gap of at least 2 inches, which may contain insulation while still maintaining a minimum clear space of 1 inch to facilitate adequate drainage. Advanced methods like the insertion of a continuous drainage mat can further reduce this space while ensuring effective moisture expulsion.
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
86


