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    • 5. 发明专利
    • Salt content judging method of aggregate, etc. for concrete
    • 聚合物的盐含量判定方法等 混凝土
    • JPS6193957A
    • 1986-05-12
    • JP21439584
    • 1984-10-15
    • Taisei Corp
    • TAKAHARA SEIKICHIKANEKO SEIJIMATSUOKA YASUNORI
    • G01N31/00G01N31/22G01N33/38
    • G01N33/383G01N31/22
    • PURPOSE:To check simply the presence or absence of the salt contents of the aggregate for concrete, etc. by mixing a fixed quantity of a sample into the prescribed quantity of purified water and by detecting the discoloration based on a chemical reaction with charging the reagent of a potassium chromate having the prescribed rate, etc. CONSTITUTION:50g (Japan Society of Civil Engineers standard) or 125g (Architectural Institute of Japan standard) of dried sea sand is weighed and the sample is mixed with 500ml purified water and with standing still after its shaking the supernatant 100ml is collected in the transparent container 5 of a polystyrene, etc. The reagent liquid A and B consisting of 5% potassium chromate solution or silver nitrate regulated by 1/58.44 are prepared in advance and when the ampoule containing 1ml judging liquid is charged into the container 6 with its cover opened, the test liquid is discolored in yellow. The ampoule containing 10ml judging liquid is similarly charged and stirred 4 well. In case of the test liquid is discolored in red the salt contents are less than the standard value. In case the whole test liquid becomes turbid as in yellow the salt classification of more than the standard value is shown.
    • 目的:通过将固定数量的样品混合到规定量的纯水中,并通过检测基于化学反应的变色来测定混凝土等的骨料的盐含量的存在或不存在 的规定速率的铬酸钾等。构成:将50g(日本土木工程师协会标准)或125g(日本建筑研究所标准)的干燥海砂称重,并将样品与500ml纯水混合并静置 摇匀后,将上清液100ml收集在聚苯乙烯等的透明容器5中。预先制备由5%的铬酸钾溶液或硝酸银组成的试剂液体A和B,调节剂为1 / 58.44,当安瓿含有1ml 判断液体被打开时将其装入容器6中,测试液体变黄。 加入含有10ml液体的安瓿瓶同样充电并搅拌4次。 在测试液体变红的情况下,盐含量小于标准值。 如果整个测试液体如黄色变得浑浊,则显示超过标准值的盐分类。