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              <h1 class="f-ff2 f-tac">CA-3直读式混凝土含气量测定仪操作规程及标定方法
                <p class="f-fwn f-ff1">作者：本站　发布时间：2021-6-12 8:45:28　浏览次数：
                  <font id="hits"></font>次</p></h1>
              <div class="xz-n-info">
                <p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">产品概述：</span></span></p><p><a href="http://www.tjsyyq.com" target="_self"><strong><span style=";font-family:宋体;font-size:16px">CA-3<span style="font-family:宋体">型直读式混凝土含气量测定仪适</span></span></strong></a><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">用于测定骨料粒径不大于</span><span style="font-family:Times New Roman">40mm</span><span style="font-family:宋体">，含气量不大于</span><span style="font-family:Times New Roman">10%</span><span style="font-family:宋体">，有坍落度的混凝土拌合物中的含气量，符合交通部发布</span><span style="font-family:Times New Roman">JTGE30-2005</span><span style="font-family:宋体">《公路工程水泥及水泥混凝土试验规程》的全部规定，该仪器测定方法符合</span><span style="font-family:Times New Roman">GBJ80-85</span><span style="font-family:宋体">标准。</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px">CA-3<span style="font-family:宋体">型直读式<a href="http://www.tjsyyq.com" target="_self"><strong>混凝土含气量测定仪</strong></a>技术参数：</span></span></p><p><span style=";font-family:宋体;font-size:16px">1<span style="font-family:宋体">、容积：</span><span style="font-family:Times New Roman">7</span><span style="font-family:宋体">升</span></span></p><p><span style=";font-family:宋体;font-size:16px">2<span style="font-family:宋体">、含气量量程：≤</span><span style="font-family:Times New Roman">10%</span></span></p><p><span style=";font-family:宋体;font-size:16px">3<span style="font-family:宋体">、粗骨料的</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">大粒径：≤</span><span style="font-family:Times New Roman">40</span><span style="font-family:宋体">毫米</span></span></p><p><span style=";font-family:宋体;font-size:16px">4<span style="font-family:宋体">、</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">小读数：</span><span style="font-family:Times New Roman">0.1%</span></span></p><p><span style=";font-family:宋体;font-size:16px">5<span style="font-family:宋体">、设计</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">高压力：</span><span style="font-family:Times New Roman">4MPa</span></span></p><p><span style=";font-family:宋体;font-size:16px">6<span style="font-family:宋体">、</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">高工作压力：</span><span style="font-family:Times New Roman">0.4MPa</span></span></p><p><span style=";font-family:宋体;font-size:16px">7<span style="font-family:宋体">、气密性试验压力：</span><span style="font-family:Times New Roman">0.4MPa</span></span></p><p><span style=";font-family:宋体;font-size:16px">8<span style="font-family:宋体">、重量：</span><span style="font-family:Times New Roman">11KG</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">特点：</span></span></p><p><span style=";font-family:宋体;font-size:16px">1<span style="font-family:宋体">： 直接读取混凝土含气量测定值，采用日本三洋技术，无须绘制曲线，操作简单。</span></span></p><p><span style=";font-family:宋体;font-size:16px">2<span style="font-family:宋体">：耐酸碱腐蚀金属材料，特种密封圈垫，防水、防尘、防爆压力表。</span></span></p><p><span style=";font-family:宋体;font-size:16px">3<span style="font-family:宋体">： 体积小、重量轻、内置手泵、便于携带，读值稳定，正确使用无故障。</span></span></p><p><span style=";font-family:宋体;font-size:16px">4<span style="font-family:宋体">： 在恶劣施工条件下，减轻操作者劳动强度，提高施工效率，保证工程质量，</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">适合施工现场。</span></span></p><p><span style=";font-family:宋体;font-size:16px">5<span style="font-family:宋体">：高频率使用无故障</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px">CA-3<span style="font-family:宋体">直读式混凝土含气量测定仪适用范围：</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">该仪器广泛适用于建工，公路，铁路，水利水电，港口。机场建设等各种施工现场混凝土含气量的测定，工程质量的监督管理，混凝土材料的科研教学实验。稳定</span>jing<span style="font-family:宋体">确的测定结果给科研检测提供了可靠的数据依据，在混凝土bi不可少的含气量控制中发挥了重要作用。简单的操作方法和简洁的安全设施给操作者带来了</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">大的方便，特别是在气候条件恶劣的施工环境下减轻操作者的劳动强度，提高了工作效率，施工质量有了可靠的保证</span><span style="font-family:Times New Roman">.</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px">CA-3<span style="font-family:宋体">直读式混凝土含气量测定仪操作规程：</span></span></p><p><span style=";font-family:宋体;font-size:16px">1<span style="font-family:宋体">、用湿布将量钵和盖的内表面擦净，然后装入砼试样，用振动式或插捣器抹平</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">直至无气泡</span><span style="font-family:Times New Roman">.</span></span></p><p><span style=";font-family:宋体;font-size:16px">2<span style="font-family:宋体">、抹平后随后称出容器和砼试样的总质量。</span></span></p><p><span style=";font-family:宋体;font-size:16px">3<span style="font-family:宋体">、在正对操作阀孔的砼表面贴一小块薄纸或塑料薄膜，擦净法兰盘，盖好量钵盖，拧紧钳式夹，打开排气阀。</span></span></p><p><span style=";font-family:宋体;font-size:16px">4<span style="font-family:宋体">、关闭操作阀，从进气阀来压缩空气，使压力指针为</span><span style="font-family:Times New Roman">1Kgf/cm2</span><span style="font-family:宋体">。</span></span></p><p><span style=";font-family:宋体;font-size:16px">5<span style="font-family:宋体">、关紧操作阀打开进水阀加少量水，关闭进水阀、排气阀使之密封不漏气。</span></span></p><p><span style=";font-family:宋体;font-size:16px">6<span style="font-family:宋体">、打开操作阀，使气室内的压缩溶器进入量钵，待压力表指针稳定后，读出表值</span><span style="font-family:Times New Roman">.</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">标定方法：</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">无注水法标定</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>1<span style="font-family:宋体">）装混凝土拌合物分</span><span style="font-family:Times New Roman">3</span><span style="font-family:宋体">层装入</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">每层捣时后高度约为</span><span style="font-family:Times New Roman">1/3</span><span style="font-family:宋体">容量高度；每层装料后由边缘向中心均匀地插捣</span><span style="font-family:Times New Roman">25</span><span style="font-family:宋体">次</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">捣棒应插透本层高度</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">再用橡皮锤沿量钵外壁击打</span><span style="font-family:Times New Roman">10-15</span><span style="font-family:宋体">次</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使插捣棒留下的插孔填满。</span><span style="font-family:Times New Roman">zui</span><span style="font-family:宋体">后一层装料避免过满。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>2<span style="font-family:宋体">）把仪器水平放置</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">用刮尺把多余的混凝土拌合物刮去</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使其表面光滑无气泡</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">用洁布擦干净量钵边缘。盖好上盖</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">均匀拧紧固定上盖和量钵的卡子。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">注意：注水测量时</span>,<span style="font-family:宋体">装入的混凝土拌合物表平面与量钵边缘稍有不</span><span style="font-family:Times New Roman">*</span><span style="font-family:宋体">而导致的误差较小可以忽略</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">而无注水测定时所导致的误差较大。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>3<span style="font-family:宋体">）打开注水阀</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">拧松排气阀</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">用注水器从注水口注水</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">至水从排气口平稳流出</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">一边继续煮水一边关闭注水阀</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">然后关闭排气阀和微调阀。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>4<span style="font-family:宋体">）拧开手泵</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">用手泵打气加压是指针到稍稍超过</span><span style="font-family:Times New Roman">chu</span><span style="font-family:宋体">压点位置</span><span style="font-family:Times New Roman">,4-5</span><span style="font-family:宋体">秒后用手指轻轻敲打表盘外侧</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使指针稳定地指到</span><span style="font-family:Times New Roman">chu</span><span style="font-family:宋体">压点上</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">拧紧手泵。</span></span></p><p><span style=";font-family:宋体;font-size:16px">chu<span style="font-family:宋体">压点：注水测定时读黑色刻度线</span><span style="font-family:Times New Roman">,chu</span><span style="font-family:宋体">压点为表盘右下方“</span><span style="font-family:Times New Roman">0&quot;</span><span style="font-family:宋体">点以下“ </span><span style="font-family:Times New Roman">&quot;</span><span style="font-family:宋体">的位置</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">无注水测定时读红色刻度线</span><span style="font-family:Times New Roman">,chu</span><span style="font-family:宋体">压点为表盘右下方“</span><span style="font-family:Times New Roman">0&quot;</span><span style="font-family:宋体">点的位置。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>5<span style="font-family:宋体">）平稳地按下平衡阀手柄</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使气室里的压缩空气往量钵里流动</span><span style="font-family:Times New Roman">,4-5</span><span style="font-family:宋体">秒钟后</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">再按下平衡阀手柄</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">用手轻轻弹击表盘的边缘使指针稳定下来</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">此时表针所指示的既是所要测定的含气量。例：注水测量时表针指示在黑色刻度“</span><span style="font-family:Times New Roman">4&quot;</span><span style="font-family:宋体">时</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">既表示含气量。为</span><span style="font-family:Times New Roman">4%</span><span style="font-family:宋体">。</span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>6<span style="font-family:宋体">）拧松排气阀排出量钵内的压力</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">松开卡子倒出量钵内的混凝土并清理干净。可按上述步骤测定下一组混凝土的含气量。<a href="http://www.tjsyyq.com/html/lqjcyq/133.html" title="马歇尔电动击实仪" target="_blank" class="sitelink">马歇尔电动击实仪</a></span></span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">（</span>7<span style="font-family:宋体">）使用完后</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">拧松微调阀</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">排出气室内压力空气</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使表针退回到垂直向下位置</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">否则会缩短仪器的使用寿命影响测定</span><span style="font-family:Times New Roman">jing</span><span style="font-family:宋体">度。用水将注水口和量钵内外的混凝土冲洗干净</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">然后用油棉布纱擦干净放置。量钵的内壁沾附混凝土时容积变小会影响测量的</span><span style="font-family:Times New Roman">jing</span><span style="font-family:宋体">度。</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><span style=";font-family:宋体;font-size:16px"><span style="font-family:宋体">直读式混凝土含气量测定仪</span> <span style="font-family:宋体">保养：</span></span></p><p><span style=";font-family:宋体;font-size:16px">1, <span style="font-family:宋体">使用时要注意先排放量钵内的压力</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">再排放气室的压力</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">不要造成水泥浆倒流进气室而导致仪器损坏。</span></span></p><p><span style=";font-family:宋体;font-size:16px">2,<span style="font-family:宋体">使用时要注意不要损坏量钵边缘</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">以免造成漏气。</span></span></p><p><span style=";font-family:宋体;font-size:16px">3,<span style="font-family:宋体">每次用完之后</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">一定要用水将量钵内外沾附的混凝土拌合物冲洗干净</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">特别要冲洗注水口使之畅通。然后用棉纱擦干净放置。</span></span></p><p><span style=";font-family:宋体;font-size:16px">4,<span style="font-family:宋体">使用完后使表的指针回到</span><span style="font-family:Times New Roman">chu</span><span style="font-family:宋体">始的位置。</span></span></p><p><span style=";font-family:宋体;font-size:16px">5,<span style="font-family:宋体">每次拧松微调阀排气时</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">使表针慢慢回到垂直向下位置</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">避免表针快速回转与右下方的挡住相碰。</span></span></p><p><span style=";font-family:宋体;font-size:16px">6,<span style="font-family:宋体">搬运时要注意表头一定要竖着搬运</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">搬运不方便时</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">可把上盖取下小心搬运。高原地区</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">上山时表的指针再垂直向下位置</span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">下山时用手泵把表的指针打到向上的位置。</span></span></p><p><span style=";font-family:宋体;font-size:16px">&nbsp;</span></p><p><br/></p>
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