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首頁>産品中心>>實驗室通用儀器>AVA3000新拌混凝土氣孔結構分析儀

新拌混凝土氣孔結構分析儀

産品簡介：

新拌混凝土氣孔結構分析儀用于测量新拌的、仍然塑性的、加气混凝土的气孔参数(间距系数和比表面积)。实验室和现场，5分钟内轻松采样，长测试时间为25分钟。适用于生产过程中的任何地方，例如在实验室，搅拌站，在运输后的现场，在泵送后凝固前的任何地方。35升恒温水箱，用于对升浮管中使用的水进行脱气，以及用于水和测试液的温度调节，以释放20cm³试样中的气泡。

更新時間	2025-09-21
訪問次數	830
産品型號	AVA3000

詳細介紹

品牌	榮計達儀器	價格區間	面議
産地類別	國産	應用領域	建材/家具,綜合

一、新拌混凝土氣孔結構分析儀簡介：

AVA-3000(氣孔分析儀)是用于測量新拌的、仍然塑性的、加氣混凝土的氣孔參數(間距系數和比表面積)。實驗室和現場，5分鍾內輕松采樣，長測試時間爲25分鍾。適用于生産過程中的任何地方，例如在實驗室，攪拌站，在運輸後的現場，在泵送後凝固前的任何地方。35升恒溫水箱，用于對升浮管中使用的水進行脫氣，以及用于水和測試液的溫度調節，以釋放20cm?試樣中的氣泡。

二、新拌混凝土氣孔結構分析儀原理：

加氣混凝土的砂漿樣品是用取樣工具從新拌混凝土中獲得的，並注入到升浮管底部的藍色AVA測試液中，上面是水。將砂漿樣品輕輕攪拌到測試液中，氣泡被釋放出來，並根據斯托克定律，大氣泡上升比小氣泡快。在取樣、進樣和攪拌過程中，氣泡將保持其原始大小，既不會聚結也不會分解成較小的氣泡。測試液有合適的粘度和親水性，並且液體和水的溫度必須在21℃和25℃之間。通過升浮管上升的氣泡被收集到一個倒置的皿(浮皿)中，這個皿是浸在水中並且連接到一個高靈敏度的天平。當氣泡聚集在皿上時，由于水被空氣替代，皿的表觀質量會降低。皿的表觀質量會隨時間記錄下來。根據所記錄的皿的表觀質量的變化，通過公式可計算出所收集氣泡的尺寸大小分布。根據尺寸分布，可計算氣泡的間距系數和比表面積。所用算法確保能與ASTMC457的導線測量法相同。

三、産品特點：

1、准確測量加氣、靜止塑性混凝土的基本氣孔參數、氣泡間距系數和氣泡的比表面積。

2、不僅記錄氣孔參數，並且記錄不同尺寸的氣泡分布，以及直徑小于2毫米的氣泡的累計分布，帶有USB接口的基于微處理器的電子設備，筆記本電腦上顯示的實時數據采集

3、通過升浮管水上升的氣泡清晰可見，現場使用的升浮管上端放置的擋風屏。通過凍融試驗確定與耐久性的關系，ASTMC666-15和ASTMC457-17測定的氣泡間距系數和比

4、顯示精度爲0.01克的高靈敏度天平(內部精度爲0.001克)。

新拌混凝土氣孔結構分析儀

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