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外墻保溫材料調(diào)研報告及可行性方案-wenkub

2023-05-29 13:41:17 本頁面
 

【正文】 all, a brown floor and soft lighting. Suddenly the wall moved –it was made of trees! I found later that their leaves provided the room with muchneeded oxygen. Then Wang Ping flashed a switch on a puter screen, and a table and some chairs rose from under the floor as if by magic. “Why not sit down and eat a little?” he said. “You may find this difficult as it is your first time travel trip. Just relax, since there is nothing planned on the timetable today. Tomorrow you’ll be ready for some visits.” Having said this, he spread some food on the table, and produced a bed from the floor. After he left, I had a brief meal and a hot bath. Exhausted, I slid into bed and fell fast asleep. Dear Mum and Dad,There followed St Paul’s Cathedral built after the terrible fire of London in 1666. It looked splendid when first built! Westminster Abbey, too, was very interesting. It contained statues in memory of dead poets and writers, such as Shakespeare. Then just as she came out of the abbey, Pingyu heard the famous sound of the clock, Big Ben, ringing out the hour. She finished the day by looking at the outside of Buckingham Palace, the Queen’s house in London. Oh, she had so mush to tell her friends!If you look around the British countryside you will find evidence of all these invaders. You must keep your eyes open if you are going to make your trip to the United Kingdom enjoyable and worthwhile.The second day the girl visited Greenwich and saw its old ships and famous clock that sets the world time. What interested her most was the longitude line. It is an imaginary line dividing the eastern and western halves of the world and is very useful for navigation. It passes through Greenwich, so Pingyu had a photo taken standing on either side of the line.Unit 3I still cannot believe that I am taking up this prize that I won last year. I have to remind myself constantly that I am really in AD 3008 . Worried about the journey, I was unsettled for the first few days. As a result, I suffered from “time lag”. This is similar to the “jet lag” you get from flying, but it seems you keep getting flashbacks from your previous time period. So I was very nervous and uncertain at first. However, my friend and guide, Wang Ping, was very understanding and gave me some green tablets which helped a lot. Wellknown for their expertise, his parents’ pany, called “Future Tours”, transported me safely into the future in a time capsule.More news later from your loving son,My first visit was to a space station considered the most modern in space. Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth’s gravity. Inside was an exhibition of the most uptodate inventions of the 31st century. A guide(G) showed us around along a moveable path.I stared at the moving model of the waste machine, absorbed by its efficiency. But again we moved on.K)的材料。有機保溫材料市場在一段時間內(nèi)仍然很廣闊,可加強對現(xiàn)有有機保溫材料的改型研究,提高其耐火等級。 在這樣一系列的節(jié)能政策、法規(guī)、標準和強制性條文的指導下,我國住宅建設的節(jié)能工作不斷深入,節(jié)能標準不斷提高,引進開發(fā)了許多新型的節(jié)能技術(shù)和材料,在住宅建筑中大力推廣使用。 從總體的趨勢看,我國經(jīng)歷了外墻內(nèi)保溫和夾心保溫外向墻,建筑節(jié)能逐步向外墻保溫過渡,完善外墻保溫成套技術(shù)。國家提倡建筑材料節(jié)能,建設部提出新建建筑要實現(xiàn)節(jié)能65%。%,建筑的單位面積采暖能耗是國際上氣候條件相近的發(fā)達國家的23倍。建筑保溫材料行業(yè)將受到國家政策的大力扶持,具有廣闊的發(fā)展空間。經(jīng)過近30年的高速發(fā)展,不少產(chǎn)品從無到有,從單一到多樣化,質(zhì)量從低到高,已形成以膨脹珍珠巖、礦物棉、玻璃棉、泡沫塑料、耐火纖維、硅酸鈣絕熱制品等為主的品種比較齊全的產(chǎn)業(yè)。據(jù)統(tǒng)計,2009年中國包括玻璃棉、巖棉、EPS、XPS、聚氨酯以及酚醛泡沫在內(nèi)的六種主要保溫材料總消耗量超過300萬噸,實際銷售收入近350億元。當前國內(nèi)以及沈陽市場建筑保溫材料主要分為A級和B級。 (2)導熱系數(shù)小, (6)不霉變、腐蝕、不受鼠咬。 (8)能耐酸性腐蝕(氟化氫除外)。同時它的重要價值不僅在于長年使用不會變質(zhì),而且本身又起到防火、防震作用。數(shù)值(標準/實測)項目 ≤160/147Mpa≥導熱系數(shù)適用范圍:巖(礦)棉板條適用于 外墻防火隔離帶、外墻外保溫層技術(shù)性能巖棉的技術(shù)性能指標導熱系數(shù) K() ≤ 干密度 kg/米3 100140壓縮強度 kPa ≥20 垂直于板面的抗拉強度 kPa ≥憎水率 % ≥98 吸水量(部分浸入,24h) kg/米2 ≤質(zhì)量吸濕率 % ≤ 燃燒性 不 燃(A級)(三)玻璃棉板產(chǎn)品概述:玻璃棉――是以石英砂、長石、硅酸鈉、硼酸等為主要原料,經(jīng)高溫熔化制得小于2mm的纖維棉狀,再經(jīng)高溫定型制造出各種形狀規(guī)格的產(chǎn)品,可生產(chǎn)為玻璃卷氈,玻璃棉板,玻璃棉管,應用于彩鋼房頂,風道、建筑吊頂,保溫管道等。特別近幾年城市集中供熱采用的地下直埋管道工藝,選用硅酸鋁、硅酸鈣、聚氨酯復合保溫;增加了保溫材料的性能,提高了管道的使用壽命。不燃A級GB 86241997憎水率%≥99GB/T 102991988(五)膨脹珍珠巖及制品膨脹珍珠巖 產(chǎn)品特性:膨脹珍珠巖具有輕質(zhì)、導熱系數(shù)低、吸濕性小、使用溫度范圍廣(273~1000℃)、化學性質(zhì)穩(wěn)定、無毒、無味、不燃燒等特點。我國膨脹珍珠巖制品品種很多,下面簡單介紹幾種: 其性能指標如下: K)(常溫),~(125~2000Hz),抗壓強度為5~10MPa。 2.水玻璃膨脹珍珠巖制品 K),以及無毒、無味、不燃燒、抗菌、耐腐蝕等特點。 水玻璃膨脹珍珠巖制品,多用于建筑圍護結(jié)構(gòu)作為保溫隔熱及吸聲材料。適用于在低溫、潮濕的環(huán)境中使用,如用于冷庫工程、冷凍設備、管道及屋面等處。 4.磷酸鹽膨脹珍珠巖制品 它具有較高的耐火度、表觀密度?。?00~500kg/m3)、強度高(~)、絕緣性較好等特點。 膨脹珍珠巖制品是多孔吸聲材料,可加工成各種規(guī)格的裝飾吸聲板,一般有不穿孔、半穿孔、穿孔吸聲板及凹凸吸聲板和復合吸聲板等多種構(gòu)造形式。 其它還有乳化瀝青膨脹珍珠巖制品、憎水珍珠巖制品、高溫耐火珍珠巖制品及石膏膨脹珍珠巖制品等。性能指標膨脹蛭石制品的生產(chǎn),是以一定粒級的膨脹蛭石為骨料,加入摻合料及結(jié)合劑,按一定比例加水混合,經(jīng)成型、干燥、焙燒或養(yǎng)護而成隔熱制品。按所用骨料種類可分為單一骨料制品;多種骨料或摻合料制品。經(jīng)高溫高壓、蒸汽養(yǎng)護,反應生產(chǎn)具有多孔狀結(jié)晶的蒸壓加氣混凝土板,其密度較一般水泥質(zhì)材料小,且具有良好的耐火、防火、隔音、隔熱、保溫等無與倫比的性能。8綠色環(huán)保材料:蒸壓加氣混凝土板沒有放射性,也沒有有害物質(zhì)溢出。 環(huán)保:在生產(chǎn)過程中,沒有污染和危險廢物產(chǎn)生。該產(chǎn)品通過選用耐候性好、韌性好、耐溫較高、成膜性好的基料,配合輕質(zhì)、孔隙率寓、熱絕緣系數(shù)大的絕緣填料及反射率高、表面光潔的反射填料,再加入優(yōu)質(zhì)的分散劑、阻燃劑、飾于一身。 (9)壽命長,與房屋主體結(jié)構(gòu)同壽命。性能指標: 性能指標:干密度:450kg/m3 粘結(jié)強度:(一)EPS笨板產(chǎn)品概述:,又名泡沫板或EPS板。(1) 笨板的保溫體系是集保溫、防水、防火裝飾功能為一體的新型建筑構(gòu)造體系。導熱系數(shù)[W/(m尺寸穩(wěn)定性(%)177。寬度(mm)177。板邊平直(mm)177。(二)酚酫保溫板產(chǎn)品概述:酚醛泡沫塑料即酚醛保溫材料是一種新型難燃、防火低煙保溫材料,它由酚醛樹脂加入阻燃劑、抑煙劑、發(fā)泡劑、固化劑及其它助劑制成的閉孔硬質(zhì)泡沫塑料。性能指標:表觀密度/(kg/m3) ≤60 導熱系數(shù)(平均溫度25℃)/[W/(m?K)] ≤ 體積吸水率/% ≤ 燃燒性能/級 B 壓縮強度/(kPa) 100 尺寸穩(wěn)定性/% -40℃,7d ≤ 70℃,7d ≤ 130℃,7d ≤四、巖棉板的發(fā)展趨勢在我國,絕熱保溫材料有很多種,巖棉生產(chǎn)量最大,這是因為它利用塊狀巖石和工業(yè)廢渣為原料,使用我國極為普遍的煤炭制取的焦炭為主要燃料,建廠條件不太受限制,成本較低的緣故。生產(chǎn)廠商為建筑業(yè)提供了種類繁多的以巖棉為芯材的復合板等產(chǎn)品,以及與建筑施工相適應的配套材料、配套件和有關(guān)施工技術(shù)軟件,因此各發(fā)達國家的高效絕熱材料在發(fā)用建筑業(yè)上取得非常廣泛的應用。是一種優(yōu)質(zhì)的輕質(zhì)、保溫、吸聲、防火材料,廣泛應用于工工業(yè)、交通運輸業(yè)和建筑業(yè)等。在我國,巖棉制品在建筑業(yè)的應用才剛剛開始。隨著城鄉(xiāng)民用建筑的飛速發(fā)展,我國建筑能耗將更加突出,建筑耗能很快增加。目前中國的建筑設計施工中,90%以上都采用了擠塑聚苯乙烯泡沫塑料(XPS)、模塑聚苯乙烯泡沫塑料(EPS)、硬質(zhì)聚氨酯泡沫塑料(PU)等有機質(zhì)絕熱材料,作為外墻的外保溫材料。PU材料可自熄,但溫度達到一定程度后就難以熄滅。事實上,自《建筑節(jié)能工程施工質(zhì)量驗收規(guī)范》頒布以來國內(nèi)的多宗大型建筑物火災,都與有機保溫材料不無關(guān)系。于是建筑承包商在挑選保溫材料的時候面臨兩難困境:防火性能好的東西,保溫性能就不好;保溫性能好,很軟、很松的東西,阻燃性就不好。20世紀60年代,歐美開始應用EPS、XPS聚苯板薄抹灰外墻外保溫系統(tǒng)。不同等級的系統(tǒng)和材料適用不同范圍的建筑防火要求。(在中國僅有“水立方”、北京地鐵等高檔公共建筑施工中使用酚醛泡沫。而這些材質(zhì)在中國被使得少之又少。全國5000多家保溫材料生產(chǎn)廠家大多數(shù)是生產(chǎn)有機材料的。因此,巖礦棉產(chǎn)業(yè)已成為綠色、環(huán)保型絕熱隔音材料行業(yè)的一個新的增長點。巖棉作為無機不燃燒材料,是國外已經(jīng)具有成熟應用技術(shù)的所有外墻外保溫材料中唯一能夠完全滿足我國現(xiàn)行國家和行業(yè)標準中A級不燃的保溫材料。合同生效且收到預付款起第3個月完成設計,第8個月完成工廠制造,第10個月完成現(xiàn)場設備制造與安裝,第11個月完成調(diào)試,第12個月完成投產(chǎn)。而沈陽市場基本上在3000~3500元/噸,市場上
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