矿棉吸声板的生产发展现状和展望

简述了矿棉吸声板在现代新型建筑装饰材料中的应用和地位，阐明了矿棉吸声板的发展、生产工艺、性能特点和应用，介绍了矿棉吸声板的产品规格、技术性能和指标：结合国内外两个具有代表性的生产商的矿棉吸声板产品较系统、直观地说明了矿棉吸声板的原料配方和内部结构特点。     

纯棉体系矿棉吸声板浅析

矿棉吸声板由于具备良好的降噪性能和防火性能,广泛用于各种建筑吊顶、贴壁的室内装修。本文简述了纯棉体系矿棉吸声板的装饰性、吸声性和防火性三方面性能,通过简单的对比,论述了两种体系产品性能的差异。     

我国矿棉吸声板今后需求量增大

矿棉吸声板是以矿棉为主要原料经加工制成的一种新型吊顶材料,它具有吸声、保温、装饰、安全等性能,这种轻质材料其平均吸声系数在(250～400Hz)0.45～0.55,平均导热系数≤0.08W/m·K(75℃测定)。这种吸声板已在我国各地建筑上使用。     

“北京名牌”——星牌矿棉吸声板

矿棉吸声板是目前国内外吊顶装饰的首选材料。其主要原材料——矿棉对人体无害,而废旧的矿棉吸声板可以回收作为原材料进行循环利用,因此矿棉吸声板是一种健康环保、可循环利用的绿色建筑材料。     

"北京名牌"——星牌矿面吸声板

矿棉吸声板是目前国内外吊顶装饰的首选材料.其主要原材料--矿棉对人体无害,而废旧的矿棉吸声板可以回收作为原材料进行循环利用,因此矿棉吸声板是一种健康环保、可循环利用的绿色建筑材料.     

选择矿棉装饰吸声板应慎之又慎

自九十年代以来,我国建筑业逐步被列入国家支柱产业,高层现代化建筑如雨后春笋、鳞次栉比,建筑业也随之有了长足的发展和进步,具有轻质、防火、节能等特点的各种新型建筑材料层出不穷。矿棉吸声板因其装饰性、功能性和适宜的价格而逐渐在建筑市场走俏,成为公共建筑吊顶材料的主力军。但在产品的     

我国中高档新型建筑材料现状简介(续)

(八)吊顶材料吊顶材料种类很多,有装饰石膏吸音板、矿棉吸声板、玻璃棉吸音装饰板、铝合金吊顶板、膨胀珍珠岩吸音吊顶板等等。     

矿棉装饰吸声板的性能与应用

矿棉装饰吸声板是墙面、顶棚装饰材料中一种常用的装饰材料，本文介绍了矿棉装饰吸声板的性能、用途、安装方法以及在安装矿棉吸声板时应该注意的事项。     

矿棉装饰吸声板的性能与应用

矿棉装饰吸声板是墙面、顶棚装饰材料中一个常用的装饰材料，本文介绍了矿棉装饰吸声板的性能、用途、安装方法以及在安装矿棉吸声板时应该注意的事项。     

凹凸棒土对矿棉吸声板性能影响分析

凹凸棒土是矿棉吸声板中的一种填充材料,对矿棉吸声板的质量有较大的影响。凹凸棒土加入量的增加,降低了矿棉吸声板在高湿度环境下的挠度变形量,提高了矿棉吸声板的应用范围;凹凸棒土的打浆黏度是影响矿棉吸声板挠度性能的重要因素之一,黏度越高,分散状态越好,增加了其在矿棉吸声板中的留着率,对于提高、稳定矿棉吸声板的性能有积极意义。     

Cement composites with limestone dust and different grades of wood sawdust

This paper presents a parametric experimental study which investigates the potential use of limestone powder wastes (LPW) and wood sawdust wastes (WSW) combination for producing a lightweight composite as a building material. Some of the physical and mechanical properties of brick materials having various levels of LPW and WSW with different particle sizes are investigated. The obtained compressive strength, flexural strength, unit weight, ultrasonic pulse velocity (UPV) and water absorption values satisfy the relevant international standards. The results show the effect of high level replacement of WSW with LPW does not exhibit a sudden brittle fracture even beyond the failure loads, indicates high energy absorption capacity, reduce the unit weight dramatically and introduce a smoother surface compared to the current bricks in the market. It shows a potential to be used for walls, wooden board substitute, alternative to the concrete blocks, ceiling panels, sound barrier panels, absorption materials, etc. Recycling of unmanaged WSW and LPW as new brick material supplements appears to be viable solution not only to the environmental problem but also to the problem of the economic design of buildings.     

Acoustic treatment of the Druzhba stadium

A feature of the covered stadia built in the USSR for the 1980 Olympic Games was the good acoustic performance achieved. Here, an engineer with the NIISF Institute of Gosstroy describes how model tests validated the choice of a coffered ceiling, with sound absorption in the panels, for the main part of the concave concrete roof of the 55 000 m³ Druzhba sports stadium.     

相变储能材料在建筑领域中的应用研究

介绍了相变储能材料的研究现状及其分类,讨论了在建筑墙板、天花板和混凝土中掺入相变材料(PCMS)后对室内舒适度的影响.运用这种相变储能建材,可将电力供给峰期时的加热或制冷负荷转移到谷期,使用户降低使用费用.同时讨论了PCMS的选择和封装所存在的问题,分析了PCMS的应用前景.     

Limestone dust and wood sawdust as brick material

The majority of abandoned limestone powder wastes (LPW) and wood sawdust wastes (WSW) is accumulated from the countries all over the world and causes certain serious environmental problems and health hazards. This paper presents a parametric experimental study which investigates the potential use of WSW–LPW combination for producing a low-cost and lightweight composite as a building material. Some of the physical and mechanical properties of concrete mixes having high level of WSW and LPW are investigated. The obtained compressive strength, flexural strength, unit weight, ultrasonic pulse velocity (UPV) and water absorption values satisfy the relevant international standards. The results show that the effect of high-level replacement of WSW with LPW does not exhibit a sudden brittle fracture even beyond the failure loads, indicates high energy absorption capacity, reduces the unit weight dramatically and introduces smother surface compared to the current concrete bricks in the market. It shows a potential to be used for walls, wooden board substitute, economically alternative to the concrete blocks, ceiling panels, sound barrier panels, etc.     

木质类建材的自身吸声特性及影响因素

采用驻波管法测定分析了实木、中密度纤维板、胶合板、刨花板等常见木质建筑材料的吸声特性,并分析了影响因素.实验结果显示:实木吸声性能较差,在各频率下的吸声率均小于20%;中密度纤维板、胶合板和刨花板的吸声性能略优于实木.降噪能力排序为:中密度纤维板>胶合板>刨花板>实体木材.在吸声频谱特性方面,实木、纤维板、胶合板和刨花板的吸收峰中心频率位于1000 Hz附近.在吸声影响因素方面,板厚度、密度和涂饰与否是影响木质材料吸声性能的重要因素,板厚度的增大、面密度的减小都有助于木质材料中低频吸声率的提高,但涂饰会使其吸声率有所降低,木质人造板涂饰后吸声性能的降幅要超过实木.     

Investigating the contribution to fire growth of combustible materials used in building components

Recent work at the UK Fire Research Station has provided a measure of the possible contribution to fire growth from the combustion of such components as wall or ceiling panels rather than the well-known contribution from surface spread of flame on wall and ceiling linings.

The oxygen depletion technique is used to assess the rate of heat release from panels with a range of facing materials and different cellular polymer cores. The paper discusses how such an experimental approach may be adapted to direct validating modelling techniques with certain components but must take account of the variablity in existing building practices.     

Development of a thermally activated ceiling panel with PCM for application in lightweight and retrofitted buildings

This paper describes the development of a thermally activated ceiling panel for incorporation in lightweight and retrofitted buildings. The system allows use of renewable energy sources for the heating and cooling of office and industrial buildings. The design for the new ceiling panel exploits the properties of the phase change material (PCM) paraffin. Its high thermal storage capacity during phase change—up to 300 Wh/(m² day)—enables the overall panel thickness to be limited to a mere 5 cm. Active control of the thermal storage is achieved by means of an integrated water capillary tube system. The research project also included the development of a numerical model for computation of the thermal behavior of wall and ceiling systems incorporating PCMs. Simulation calculations were performed to determine the necessary thermal properties of the ceiling panels and specify requirements for the materials to be used. Laboratory tests were performed to verify the system’s performance and a pilot application is soon to be tried out in practice.     

Design of protective structures with aluminum foam panels

Design of protective structures requires multiple functions and reasonable safety criteria according to target structures. Hardening is one of the common concept to protect facilities and people. A general concept of blast pressure mitigation by metal foams was proposed. In this paper, a composite panel with aluminum foams and steel skins is introduced. Aluminum foams have low density and are attractive materials to mitigate high-speed pressure by blast loads due to high-energy absorption capabilities. A steel skin with high energy absorption capacity can be effectively used to resist penetration at front surface of the barrier and debris risk at rear surface. Mechanical properties of the aluminum foam according to different densities were obtained by material tests. Three material models for concrete, steel and aluminum foam were utilized considering strain-rate effects. Using the derived material models, explicit analyses of the composite panels were performed and their performance was evaluated. The newly developed high strength foam showed higher yield strength and better energy absorption capacity resulting in lightweight protective panels. For high blast pressure, the combination of energy absorbing steel skin and relatively dense foam or thicker foam is more effective.     

棉秸秆保温夹心隔墙板生产的探索与研究

利用资源丰富和廉价易得的棉花秸秆制取性价比高的夹心墙板,消除了一个空气污染源,得到了一种用途广泛的新型建筑材料。为保证棉秸秆夹心保温隔墙条板产品的质量,满足GB/T 23451—2009《建筑用轻质隔墙条板》的标准要求,根据原材料的特点从面层和夹心层两方面对原材料的选择、生产过程、生产方法、设备的选择等进行了有效的试验探索研究,从理论角度对该产品的生产可行性予以分析、论证。     

托架式岩棉板薄抹灰外墙外保温系统在超高层建筑应用技术研究

自2011年3月15日起,民用建筑外保温材料燃烧性能要求为A级。岩棉板作为无机不燃材料,具有导热系数小、保温性能高、透气性好等优点被广泛应用于外墙外保温建筑工程中。但由于岩棉板密度大,易变形和翘曲,主要在幕墙内使用,其薄抹灰系统在超高层建筑中应用极为少见。结合工程实例,阐述岩棉板薄抹灰系统在超高层建筑外保温中应用所遇到的抗风压、抗剪切、锚栓数量等问题,在理论计算的基础上,分析本系统的技术难点,提出解决办法,通过实体检测和工程验收符合设计要求,为类似工程提供借鉴。