<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">防水板|防水卷材|凸殼防水板<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-WEIGHT: bold; FONT-SIZE: 13.5pt; COLOR: rgb(0,64,128); FONT-FAMILY: '楷體_GB2312'; mso-spacerun: 'yes'">公司網(wǎng)址：<***N><***N class=15 style="FONT-WEIGHT: bold; FONT-SIZE: 13.5pt; COLOR: rgb(0,0,255); FONT-FAMILY: '楷體_GB2312'; TEXT-DECORA**ON: underline; mso-spacerun: 'yes'">http://www.hjxs.net<***N style="FONT-WEIGHT: bold; FONT-SIZE: 13.5pt; COLOR: rgb(0,64,128); FONT-FAMILY: '楷體_GB2312'; mso-spacerun: 'yes'">?由女士<***N style="FONT-SIZE: 9pt; COLOR: rgb(51,51,51); FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">。<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">一、<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">防水板的施工規(guī)范?<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　鋪設前準備工作：<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">?地基處理:清掃鋪設面,要求基體平整,土體堅實,不能凹凸不平,裂紋等,不能有尖銳物,石塊、鐵絲、木棒等，防滲范圍內(nèi)的草皮，樹根要清除，對于雜草要噴灑滅草劑。<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　與膜接觸面，鋪設粒徑小的砂土或粘土層作防護層，防護層覆蓋厚度不宜小于30㎝。<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">二、<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">鋪設方法：<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　沿一定方向鋪設，同時不要拉得太緊，應留有一定伸縮量，以適應基體變形。<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">??<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">防水板鋪設時,要調(diào)整好每個單元走向,以便于兩個單元的焊接.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　防水板鋪設好后,要用砂袋壓住,以防風沙影響下一步邊緣的焊接.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">三、<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">?防水板焊接<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">???<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">.接縫處理是施工關鍵程序,一般采用熱焊接方法,PE膜相接的表面加熱處理,使之表面熔化,然后通過壓力,使之熔合成一體.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　對于鋪設好的防水板,邊緣接縫處要求不能有油污,水份,塵土等.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　焊接前要調(diào)整好接縫處兩幅邊PE單膜,使之搭接一定的寬度,搭接寬度一般為6～8㎝且平整,無折皺.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　使用專用焊接機進行焊接.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: '宋體'; mso-spacerun: 'yes'">四、<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">焊縫質(zhì)量檢測:<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　檢測方法應采用充氣法及室內(nèi)試驗,也可采用火花試驗或超聲波探測法.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　檢測設備采用氣壓式檢測儀及真空檢測儀.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　焊縫質(zhì)量要求:<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　對雙縫充氣長度為30-60㎜雙焊縫間充氣壓力達到0.15-0.2MPa,保持1-5min,壓力無明顯下降為合格.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　對單焊縫和T形結點及修補點應采取50㎝×50㎝方格進行真空檢測,真空壓力大于或等于0.005MPa,保持30s,肥皂液不起泡為合格.<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　室內(nèi)試驗.焊縫抗拉強度應大于母材強度.?<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">
<***N style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Arial'; mso-spacerun: 'yes'">　　質(zhì)量檢驗應隨施工進展進行.