[视频]膨胀吸水的珍珠岩到底有多重?

2023-07-27 09:42:01

珍珠岩是一种常见的建筑材料,珍珠岩原砂经细粉碎和超细粉碎,可用于橡塑制品、颜料、油漆、油墨、合成玻璃、隔热胶木及一些机械构件和设备中作填充料。其密度比水略大,本身是空芯,像海绵。

珍珠岩是一种常见的建筑材料,珍珠岩原砂经细粉碎和超细粉碎,可用于橡塑制品、颜料、油漆、油墨、合成玻璃、隔热胶木及一些机械构件和设备中作填充料。其密度比水略大,本身是空芯,像海绵。高温烧制会膨胀4到30倍,越膨胀吸水能力就越强,珍珠岩散料吸水率可达250%-750%。建筑用途的珍珠岩经疏水工艺处理吸水率能控制到90%以内,未经疏水处理的膨胀珍珠岩散料在极端情况下自重可达原来的3-9倍,每立方米珍珠岩吸水膨胀后重量可能超过一吨。体育馆屋顶本不以大量承重作为主要功能,长时间放置珍珠岩,在经历夏季的连日大雨后,坍塌风险大大增加。

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珍珠岩是一种常见的建筑材料,珍珠岩原砂经细粉碎和超细粉碎,可用于橡塑制品、颜料、油漆、油墨、合成玻璃、隔热胶木及一些机械构件和设备中作填充料。其密度比水略大,本身是空芯,像海绵。

2023-07-27 09:42:01

Recently, due to the persistent cost pressure in the south, the price of concrete has risen slightly with the raw materials, but the growth of market demand is limited, and the overall quotation is still stable. From October 31 to November 6, the national concrete price index closed at 112.47 points, up 0.31% annually and down 10.11% year-on-year.