屋面保溫層技術交底.doc

交底內容：
屋面保溫層
本技術交底適用于一般工業與民用建筑工程采用松散、板狀保溫材料和現澆整體保溫的屋面保溫層工程施工。
1．材料要求
所用材料的表觀密度、含水率、導熱系數等技術性能必須符合設計要求和施工規范的規定。應有質量證明文件。
松散的保溫材料應使用無機材料，如選用有機材料時，要先做好材料的防腐處理。
（1）松散材料：爐渣或水渣粒徑一般為5～40mm，不得含有石塊、土塊、重礦渣和未燃盡的煤塊，表觀密度為500～800kg/m3，導熱系數為0.16～0.25W/m．k。
（2）板狀保溫材料：外觀整齊，厚度應根據設計要求確定，使用前應按設計要求檢查其表觀密度導熱系數，含水率及強度。
A．泡沫混凝土板：表觀密度不大于500 kg/m3，抗壓強度應不低于0.4Mpa。
B．加氣混凝土板：表觀密度為500～600 kg/m3，抗壓強度應不低于0.2Mpa。
C．聚苯板塊：表觀密度為≤45 kg/m3，抗壓強度應不低于0.18Mpa，導熱系數為0.043W/m．k。
2．主要機具
一般應備有鐵鍬（平鍬）、木刮杠、水平（準）尺，手推車、木拍子等。
3．作業條件
（1）鋪設保溫材料的基層施工完，將預制構件的吊鉤、拖拉繩等清除干凈，殘留在構件外表的痕跡應磨平，抹入砂漿層內，經檢查驗收合格后，方可進行下道工序。
（2）有隔氣層要求的屋面，應先將基層清掃干凈，按設計要
Cards on the table contents:
Roof insulation
The technical disclosure for general industrial and civil engineering with loose, heat insulation materials, in-situ thermal insulation of the roof insulation layer of the overall construction.
1. Material requirements
Apparent density of the materials used, water content, thermal conductivity, such as technical performance must meet the design requirements and construction norms. Should be the quality of documents.
Loose insulation material should be inorganic materials, such as the use of organic materials, with first and corrosion protection materials.
(1) loose material: slag or water residue particle size is generally 5 ~ 40mm, shall not contain stones, clods, heavy slag and unburned coal, and the apparent density of 500 ~ 800kg/m3, thermal conductivity 0.16 ~ 0.25W / m. k.
(2) heat insulation materials: look neat, the thickness should be determined according to design requirements, design requirements should be checking before using the apparent density, thermal conductivity, water content and strength.
A. Foam concrete slab: apparent density not greater than the 500 kg/m3, compressive strength should be no less than 0.4Mpa.
B. Aerated concrete panels: the apparent density of 500 ~ 600 kg/m3, compressive strength should be no less than 0.2Mpa.
C. Polystyrene plates: the apparent density of ≤ 45 kg/m3, compressive strength shall be not less than 0.18Mpa, thermal conductivity coefficient of 0.043W / m. k.
2. Major equipment
General should have shovels (flat spade), wood scraping bars, horizontal (quasi-) foot, trolley, wooden racket and so on.
3. Operating conditions
(1) laying insulation material base construction completed, will Prefabricated hook, drag rope, etc. cleaned, residual traces of the component surface to be polished and put it into the mortar layer, upon acceptance by inspection before proceeding to next the procedures.
(2) gas requirements across the roof, should be cleaned first primary, according to design to
 

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