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修建外保温资料防火保温对策及做法
来源:/ 日期:2019-02-14 发布人:

修建外保温资料防火保温对策及做法

Countermeasure and Practice of Building External Thermal Insulation Material for Fire Protection and Thermal Insulation

一、修建外保温零碎常用资料

I. Construction of Fragmentary Common Materials for External Thermal Insulation

目前外墙保温所用的保温资料次要是:eps(聚苯乙烯泡沫)、xps(挤塑聚苯乙烯泡沫)、pu(聚氨酯泡沫)、岩(矿)棉板、玻璃棉毡以及超轻的聚苯颗粒保温料浆等资料。这些资料普遍存在节能与防火不能统筹的缺陷。无机资料耐热差、易熄灭,而且在熄灭时释缩小量热量、发生少量有毒烟气,不只会减速大火蔓延、而且容易形成被困人员及救援人员伤亡;无机资料则存在粉尘和粗大纤维,既净化空气又易繁殖细菌,早已成爲危害人们安康的隐患,而且保温隔热功能无限,使用范围遭到限制。

At present, the thermal insulation materials used for external wall insulation are: EPS (polystyrene foam), XPS (extruded polystyrene foam), PU (polyurethane foam), rock (ore) cotton sheet, glass wool felt and ultra light polystyrene granule insulation slurry. These data generally have the disadvantage that energy saving and fire prevention can not be coordinated. Inorganic materials are poor in heat resistance and easy to extinguish, and when extinguished, they release a small amount of heat and produce a small amount of toxic smoke, which not only slows down the spread of the fire, but also causes casualties among trapped and rescue workers. Inorganic materials contain dust and coarse fibers, which can purify the air and breed bacteria easily. Inorganic materials have long been a hidden danger to people's health, and have infinite heat preservation and insulation functions. The encirclement was restricted.

修建节能是执行国度环境维护和浪费动力政策的次要内容,是贯彻国民经济可继续开展战略的重要组成局部。随着节能规范由原来的30%进步到50%,外墙保温技术失掉了长足的开展,并成爲我国一项重要的修建节能技术。但近年来外墙保温资料火灾频发,形成了严重的人员伤亡和财富损失。因而随着修建节能的片面推进,修建节能的防火成绩也越来越严峻。

Building energy-saving is the secondary content of implementing the national environmental protection and waste power policy, and is an important part of carrying out the strategy that the national economy can continue to carry out. With the improvement of energy-saving standards from 30% to 50%, the external wall insulation technology has lost considerable development and become an important energy-saving technology for construction in China. However, in recent years, exterior wall insulation materials fire frequently, resulting in serious casualties and wealth losses. Consequently, with the unilateral promotion of building energy-saving, the fire prevention achievements of building energy-saving are becoming more and more severe.

二、在建和既有修建的外保温改造状况的对策措施

II. Countermeasures and Measures for External Thermal Insulation Reform in Construction and Existing Construction

非承重外墙的耐火极限对修建物间火势的蔓延起一定作用,但不是次要的。由此可见,对修建外墙的防火次要是避免火势蔓延,修建防火的重点是处理耐火等级、防火间距、防火分区、平安疏散、消防给水、火灾扑救、防烟排烟等方面的成绩。普通而言,整个外墙表面面起火熄灭的机率是很低的。

The fire resistance limit of non-load-bearing exterior wall plays a certain role in the spread of fire among buildings, but it is not secondary. It can be seen from this that the fire prevention of building external walls is mainly to avoid the spread of fire. The focus of building fire prevention is to deal with the fire grade, fire spacing, fire zoning, safe evacuation, fire water supply, fire fighting, smoke control and smoke exhaust and other achievements. Generally speaking, the probability of extinguishing the fire on the whole exterior wall surface is very low.

A1级防火保温材料

首先要弄清楚可以熄灭外墙外表起火的火源在哪里(除非工地失火)?标准中都有专门规则,外墙火势蔓延次要是避免部分引发的火源向外蔓延。次要火源发作在修建物外部,其蔓延方式对外墙而言,次要是室内的火焰经过外墙门窗洞启齿部位往上蔓延到下层洞口并进入室内,惹起下层着火,所以上下窗洞口之间的槛墙(包括幕墙两层间的空隙)应非常慎重,务必处置好,这是防备的重点。

First of all, we need to find out where the exterior fires can be extinguished (unless the site fires). There are special rules in the standard, and the spread of exterior fires is secondary to avoiding the outward spread of some of the ignited fires. Secondary fire source occurs outside the building, and its spreading way is to the external wall. Secondly, the indoor flame spreads upward through the opening part of the door and window of the external wall to the lower hole and enters the room, causing the lower layer to catch fire. Therefore, the barrier between the upper and lower window hole (including the gap between the two layers of the curtain wall) should be very careful, and must be handled well, which is the key point of prevention.

二是关于修建物的防火设计,一个次要目的是便于人员平安顺利转移,便于消防。外墙防火的重点是窗口火向上蔓延,在一定工夫内使居民可以转移,所以应设定一工夫,以便在修建设计中采取措施,满足防火要求。当然也不排挤其他外墙洞口火源的封堵,但不能由此避免对外墙部分火源的蔓延而提出“外墙外保温的防火成绩”,从而进步整个外墙外保温的防火要求。

Second, the fire protection design of buildings, a secondary purpose is to facilitate the safe and smooth transfer of personnel, facilitate fire protection. The key point of exterior wall fire prevention is that window fire spreads upward, so that residents can be transferred within a certain time. Therefore, a time should be set so as to take measures in construction and design to meet the requirements of fire prevention. Of course, it does not exclude the blockade of other external wall fire sources, but it can not avoid the spread of some external wall fire sources and put forward the "fire performance of external wall thermal insulation", thereby improving the fire protection requirements of the whole external wall thermal insulation.

三、次要的结构及做法

Secondary Structure and Practice

外墙保温次要分外保平和外保温。内保温存在热桥保温处置困难,易呈现结露景象,占用运用面积,影响居民的二次装修,且内墙悬挂和固定物件也容易毁坏内保温构造,而外墙外保温是在主体墙构造外侧在粘接资料的作用下,固定一层保温资料,并在保温资料的外侧用玻璃纤维网增强并涂刷粘结胶浆。我区现有节能工程根本都是外墙保温。它次要是采用粘接砂浆或许是公用的固定件将保温资料贴、挂在外墙上,然后抹抗裂砂浆,压入玻璃纤维网格布构成维护层,最初加做装饰面。还有一种做法是用公用的固定件将不易吸水的各种保温板固定在外墙上,然后将铝板、自然石材、黑色玻璃等外挂在事后制造的龙骨上,间接构成装饰面。

External wall insulation is secondary to external flatness and external insulation. Internal insulation is difficult to deal with because of thermal bridge insulation, which tends to show dew phenomenon, occupies the applied area, affects the secondary decoration of residents, and the suspension and fixed objects of internal wall are easy to destroy the internal insulation structure. The external insulation of external wall is to fix a layer of insulation material on the outer side of the main wall structure under the function of bonding data, and strengthen and brush bonding with glass fiber mesh on the outer side of the insulation material. Mucilage. The existing energy-saving projects in our district are basically external wall insulation. Secondly, it uses bonded mortar, which may be a common fixture, to paste and hang insulation materials on the external wall, then apply anti-cracking mortar, press into the glass fiber mesh cloth to form a maintenance layer, and initially add decorative surface. Another method is to fix various heat preservation boards which are not easy to absorb water on the external wall with common fixtures, and then hang aluminium boards, natural stones and black glass on the keel made afterwards, indirectly forming the decorative surface.

综上所述有山东广日建材有限公司提供,更多A1级防火保温材料知识,欢迎关注我们的网站:谢谢支持!

In summary, all the above-mentioned Shandong Guangri Building Material Co., Ltd. provides more knowledge of A1 class fire and thermal insulation materials. Welcome to pay attention to our website: . Thank you for your support!


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