屋面防水改造工程施工設(shè)計(jì)方案-wenkub
2023-05-25 22:31:21 本頁(yè)面
【正文】 nt river pollution rebound. In accordance with the onestop strategy, improving the inferior five water quality monitoring stations work this year to ensure the Elimination of 1 provincial control, five water quality section 3 municipalities controlled deterioration, ensure the creation this year of clear rivers standards. Second, pay special attention to pollutioncutting construction of nanotubes. Intercepting nanotubes are the basis of pollution of water source engineering, engineering, matter of success or failure of water management. Urban sewage treatment, to improve effluent from sewage treatment rate, running accuracy, pliance requirement, speed up the town39。s support network construction, is focusing on nanotubes home last meters question. Domestic sewage treatment in rural areas, this year is the final year of the threeyear action, determination to fight and the momentum around, ending the battle on which fully to ensure the realization of all County 648 formed village coverage. Also, be sure to attach importance to focus on rural domestic wastewater treatment facility operation and management, ensure that wastewater treatment facility up and running, role play, avoid the Sun problem. Third, pay special attention to the River Lake pond desilting operation. Provinces now have focused on pollution control of water go to dig up mud, as the deepening water of this year39。鏟除原防水層及找平層 a） 用鐵鏟清除全部原防水層，注意在清除時(shí)應(yīng)盡量不損壞找平層，清除的垃圾集中堆放，統(tǒng)一處理。屋面找坡的作業(yè)條件將現(xiàn)澆混凝土板表面的起砂、起皮的處理好，并將灰塵、雜物清理干凈， 穿過(guò)屋面和墻面等結(jié)構(gòu)層的管根部位，應(yīng)用細(xì)石混凝土填塞密實(shí)，將管根固定。管根固定：穿屋面結(jié)構(gòu)層的管根在保溫層施工前，用細(xì)石混凝土塞堵密實(shí)。、作業(yè)條件找平層施工前：屋面找坡層應(yīng)進(jìn)行隱蔽工程檢查驗(yàn)收，并辦理手續(xù)。先將板底墊實(shí)找平，不易填塞的立縫、邊角破損處、宜用同類找坡板塊的碎末填實(shí)填平。卷材屋面防水層、材料要求所用卷材及其他材料的質(zhì)量、技術(shù)性能必須符合設(shè)計(jì)和施工驗(yàn)收規(guī)范的要求。屋面找平層的坡度，應(yīng)符合設(shè)計(jì)和施工驗(yàn)收規(guī)范要求，并不得有積水現(xiàn)象；所有穿過(guò)屋面的管道、預(yù)埋件等應(yīng)在防水層施工前做好基層處理，以免造成滲漏隱患。鋪貼檐口第一層卷材，先從雨水口向兩側(cè)鋪貼，卷材的碰頭應(yīng)在兩雨水口的中間。卷材搭接長(zhǎng)度不得小于80mm，平行于屋脊的搭接縫應(yīng)順?biāo)鞣较?，垂直于屋脊的搭接縫應(yīng)順主導(dǎo)風(fēng)向。鋪貼卷材不得皺折，也不得用力拉伸卷材，并應(yīng)排除卷材下的空氣，輥壓粘貼牢固。d）其他特殊部位的防水做法屋面特殊部位的鋪貼要點(diǎn)（1）檐口將鋪貼到檐口端頭的卷材裁齊后壓入凹槽內(nèi)，然后將凹槽用密封材料嵌填密實(shí)。水落口杯與基礎(chǔ)接觸處留出寬20mm、深20mm的凹槽，嵌填密封材料。水落口處卷材裁剪方法見(jiàn)下圖示。卷材鋪貼完成后，將端頭裁齊。附加層卷材裁剪方法見(jiàn)水落口做法。陰陽(yáng)角卷材剪貼方法（a）陽(yáng)角做法 （b）陰角做法 工藝流程：原防水層清理——基層找平——刷底油——陰陽(yáng)角粘貼附加層——鋪貼防水卷才——防水層表面清理檢查——驗(yàn)收簽 、施工要點(diǎn)： ?。?）鏟除女兒墻、立墻、落水口、等節(jié)點(diǎn)部位的原防水層。找平層上應(yīng)無(wú)明顯濕漬，基層干燥，含水率小于9%，可用面積約1m2，～，放置2～3h，如覆蓋的基層表面無(wú)水印，緊貼基層一側(cè)的橡膠板又無(wú)凝結(jié)水珠，可滿足施工要求。干燥4h以上至不粘腳后方可進(jìn)行下道工序。如下圖先鋪設(shè)排水比較集中的部位，按標(biāo)高由低向高的順序鋪設(shè)（6）卷材搭接縫施工在熱熔粘結(jié)搭接縫前，先將下一層卷材表面的隔離層用噴燈熔化，具體操作，由持噴燈的工人用抹子當(dāng)擋板沿搭接線向后移動(dòng)，噴燈火焰隨擋板一起動(dòng)，噴燈應(yīng)緊靠擋板，距離卷材約50～100mm。立面墻上防水層應(yīng)滿粘?；蛘邔⒕聿闹僚畠簤ι掀矫嫒繚M粘。5. b) 在氣孔、管壁高150mm處粘上一圈3cm 寬的密封帶，再取一塊比排氣孔或排氣管周長(zhǎng)尺寸大100mm寬250mm的片材，涂上基層膠粘劑（S8013或S7033），待干燥至手指觸摸不粘手時(shí)可粘貼，孔壁或管壁粘結(jié)高度為150mm，孔根或管根片材沿四周剪成均勻的深度100mm 條塊狀與孔根或管根牢固粘合, a
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