漯河高铁裂缝封闭修补380A表面封闭涂层修补技术-「混凝土」-马可波罗网

<img alt="" src="//img12.makepolo.cn/images/formals/img/focus/585/957/4_b9e1ee1d34b7a0ca4122789ae2f1532b.jpg" data-ke-src="//img12.makepolo.cn/images/formals/img/focus/585/957/4_b9e1ee1d34b7a0ca4122789ae2f1532b.jpg"> 高铁裂缝封闭修补380A表面封闭涂层用于表面封闭的涂层材料宜采用聚合物水泥基材料，高铁加固表面封闭涂料的主要性能完全满足无砟道床混凝土裂缝修补的表面封闭法。底涂材料采用高聚合物乳液含量的聚合物水泥基材料。 一、高铁裂缝封闭修补380A表面封闭涂层性能指标                                                                       <table style="border: currentColor; border-image: none; border-collapse: collapse; mso-table-layout-alt: fixed; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-insideh: 0.7500pt solid windowtext; mso-border-insidev: 0.7500pt solid windowtext; mso-padding-alt: 0.0000pt 5.4000pt 0.0000pt 5.4000pt;" border="1" cellspacing="0"><tbody><tr style="height: 9.15pt;"><td width="433" valign="center" style="border-width: 3pt 1pt 1pt 3pt; border-style: double solid solid double; border-color: windowtext; padding: 0pt 5.4pt; width: 260.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" colspan="2">项目</td><td width="295" valign="center" style="border-width: 3pt 3pt 1pt 1pt; border-style: double double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">性能指标</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">表干时间，h</td><td width="195" valign="center" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">初始值</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">≤2</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">拉伸强度，MPa</td><td width="195" valign="center" style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: rgb(0, 0, 0) windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">7d</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">≥2</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">断裂伸长率，%</td><td width="195" valign="center" style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: rgb(0, 0, 0) windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">7d</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">≥100</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">人工气候老化</td><td width="195" valign="center" style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: rgb(0, 0, 0) windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">720h</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">无裂纹及变形</td></tr><tr style="height: 9.15pt;"><td width="433" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 260.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;" colspan="2">耐碱性（碱处理，拉伸强度保持率），％</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">60～150。，</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 0px 1pt 1pt 3pt; border-style: none solid solid double; border-color: rgb(0, 0, 0) windowtext windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">不透水性</td><td width="195" valign="center" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext;">0.3MPa，30min</td><td width="295" valign="center" style="border-width: 1pt 3pt 1pt 1pt; border-style: solid double solid solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 0.7500pt solid windowtext;">不透水</td></tr><tr style="height: 9.15pt;"><td width="238" valign="center" style="border-width: 1pt 1pt 3pt 3pt; border-style: solid solid double double; border-color: windowtext; padding: 0pt 5.4pt; width: 143.2pt; background-color: transparent; mso-border-left-alt: 3.0000pt thin-thick-small-gap windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 3.0000pt thick-thin-small-gap windowtext;">粘结强度，MPa</td><td width="195" valign="center" style="border-width: 1pt 1pt 3pt 0px; border-style: solid solid double none; border-color: windowtext windowtext windowtext rgb(0, 0, 0); padding: 0pt 5.4pt; width: 117pt; background-color: transparent; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 0.7500pt solid windowtext; mso-border-bottom-alt: 3.0000pt thick-thin-small-gap windowtext;">7d</td><td width="295" valign="center" style="border-width: 1pt 3pt 3pt 1pt; border-style: solid double double solid; border-color: windowtext; padding: 0pt 5.4pt; width: 177.35pt; background-color: transparent; mso-border-left-alt: 0.7500pt solid windowtext; mso-border-top-alt: 0.7500pt solid windowtext; mso-border-right-alt: 3.0000pt thick-thin-small-gap windowtext; mso-border-bottom-alt: 3.0000pt thick-thin-small-gap windowtext;">≥1.5</td></tr></tbody></table>注：表面封闭涂层执行规范：TG/GW 《高速铁路无砟轨道线路维修规则》涂层材料颜色应尽量与混凝土颜色相近；检测依据：GB/T 16777《建筑防水涂料试验方法》、GB/T 19250《聚氨酯防水涂料》。<img alt="" src="//img12.makepolo.cn/images/formals/img/focus/673/708/4_0e59934c73a96d7ab22913bcfbf4a92c.jpg" data-ke-src="//img12.makepolo.cn/images/formals/img/focus/673/708/4_0e59934c73a96d7ab22913bcfbf4a92c.jpg">二、高铁加固裂缝封闭修补380A表面封闭涂层施工工艺                                                                       使用钢丝刷将裂缝表面两侧刷毛，用真空吸尘器清理灰尘等杂物。当裂缝内有明水时，应采用热风机等将裂缝处吹干。称量并配制表面封闭涂料，采用手持式搅拌机或搅拌器将修补材料搅拌均匀。沿裂缝表面涂刷一层底涂材料。待底涂材料表干后，涂刷380A表面封闭涂层，涂刷3遍以上，以涂层厚度达到300μm以上为宜。每遍涂刷都要等到上遍涂层材料表干后再涂，且两次涂刷方向相互垂直。在大风干燥等条件下适当采取薄膜覆盖等方法养护，防止涂层材料失水过快导致涂层开裂。主要修补机具：钢丝刷、真空吸尘器、计量工具、搅拌工具、盛料容器、涂刷工具等。<img alt="" src="//img12.makepolo.cn/images/formals/img/focus/365/990/4_0d258c967b08fdd6b3e595d9e67f9c91.jpg" data-ke-src="//img12.makepolo.cn/images/formals/img/focus/365/990/4_0d258c967b08fdd6b3e595d9e67f9c91.jpg">三、高铁裂缝封闭修补380A表面封闭涂层包装贮存                                                                       表面封闭涂料采用复合牛皮纸袋包装，25kg/袋。贮存期：自生产之日起有效贮存期为6个月。应贮存在阴凉、干燥、通风的库房中，不可曝晒，不可雨淋，冬季应注意防冻。<img alt="" src="//img12.makepolo.cn/images/formals/img/focus/83/417/4_8cf3ec0195b02d8d0546327801ac6421.jpg" data-ke-src="//img12.makepolo.cn/images/formals/img/focus/83/417/4_8cf3ec0195b02d8d0546327801ac6421.jpg">

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