珀莱特混凝土的机械性能与其在建筑物的外墙上的使用有关
Olga Szlachetka1, Justyna Dzięcioł1, Marek Dohojda1
1Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, 166 Nowoursynowska Street, 02-787 Warsaw, Poland.
Materials (Basel, Switzerland)
|December 17, 2024
概括
扩展石 (EP) 混凝土块 (PPC) 提供了一个可持续的建筑材料. 纯珀莱特混凝土块 (100% EP) 满足波兰单户住宅的承载墙要求.
科学领域:
- 材料科学与工程 材料科学与工程
- 可持续的建筑材料 可持续的建筑材料
- 建筑物理 建筑物理
背景情况:
- 对于可持续和环保的建筑材料的需求日益增长.
- 需要使用具有综合热和声隔热性能的无毒,圆形建筑材料.
- 在混凝土块中使用纯扩展石 (EP) 的研究有限,大多数研究都集中在部分沙子替代上.
研究的目的:
- 通过实验确定扩展珠宝石 (EP) 和纯珠宝石混凝土块 (PPC) 的物理和机械性能.
- 评估PPC (100% EP) 在欧洲,特别是波兰的单户住宅中作为承载材料的适用性.
- 建立PPC样品准备的最佳程序,包括混合,压缩速度和最大负载力.
主要方法:
- 扩展珠宝石 (EP) 和纯珠宝石混凝土块 (PPC) 的基本物理和机械参数的实验性确定.
- 开发和测试样品准备程序:混合,压缩速度 (15 mm/min) 和最大负载力 (10,000 N).
- 对PPC样品的压力强度的评估,其干密度等级为650.
主要成果:
- 确定样品制备的最佳压缩速度为每分钟15毫米.
- 在15毫米/分钟的位移速度下,最大压缩力为10,000N,在干密度类650中产生了压力强度超过3MPa的PPC.
- 单层样本形成 (固体样本) 被确定为一种有效的方法.
结论:
- 纯珀莱特混凝土块 (100% EP) 显示出作为住宅建筑承重墙的可持续和有效材料的潜力.
- 已建立的制备方法 (10,000N压缩力在15mm/min) 确保了PPC的适当的压力强度.
- 这项研究支持扩展珠岩的使用,作为环保建筑材料中传统聚合物的可行替代品.
更多相关视频
相关概念视频
01:22Thermal Insulation in Masonry Walls
105
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....
105
01:17Mortar Properties
112
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...
112
01:18Composite Masonry Walls
883
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...
883
01:16Masonry Loadbearing Walls
100
Masonry load-bearing walls, constructed from materials like brick, stone, or concrete masonry units, serve as a crucial component in building structures by supporting the loads from floors and roofs and transferring them to the foundation. These walls, known for their compressive strength, can be reinforced or unreinforced to suit different building needs, accommodating both the dead and live loads while maintaining safety through lower working stresses compared to the materials' ultimate...
100
01:20Masonry Curtain Walls
795
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...
795
01:15Posttensioned Masonry Walls
117
Post-tensioned masonry walls use high-strength steel rods or flexible tendons to enhance the strength and efficiency of masonry structures. These elements are securely anchored to the foundation and extend vertically either within the cores of the masonry units or between the masonry wythes. The construction process involves building the wall with these tensioning elements in place and allowing the mortar to fully cure.
Following the curing process, the tensioning begins. Steel rods are...
117