首页> 外国专利> Heat and sound insulating sand-lime bricks or mouldings - which contain pores produced by adding foamed surfactants to sand-lime mixt.

Heat and sound insulating sand-lime bricks or mouldings - which contain pores produced by adding foamed surfactants to sand-lime mixt.

机译:隔热隔音砂砖或嵌条-包含通过向发泡砂混合物中添加泡沫表面活性剂而产生的孔。

摘要

The insulating properties of the bricks are produced by porosity, which is achieved by adding foamed anionic tensides plus glycol derivs. and urea to the sand-lime mixt., before the bricks or similar prefabricated mouldings are dried and hardened by pressurised steam. The pref. foamant is a mixt.(I) contg. 22% alkylether-sulphate, 16% ethylene glycol, 6.5% urea, and 55.5% water. The porosity in the bricks etc. is pref. adjusted within wide limits by varying the amt. of mixt. (I) employed. The basic mixt. of sand and lime is pref. stirred with water to make a slurry, to which mixt. (I) is added; and 0.5-10 wt.% cement is pref. used to aid setting and drying of the bricks. The main patent 2930645, and its addn. 2933787, described bricks and other mouldings which could be made without using pressure, and has a low density. The present invention provides bricks or mouldings with any desired shape; with an adjustable density; and with adjustable insulating properties.
机译:砖的绝缘性能是通过孔隙率产生的,该孔隙率是通过添加泡沫阴离子表面活性剂和乙二醇衍生物来实现的。在将砖或类似的预制模制品干燥并通过加压蒸汽硬化之前,先将尿素和尿素倒入石灰砂混合料中。偏好。发泡剂是一种混合物。 22%的烷基醚硫酸盐,16%的乙二醇,6.5%的尿素和55.5%的水。砖等中的孔隙率是优选的。通过改变amt在宽范围内进行调整。混蛋。 (一)受雇。基本混音。沙子和石灰是首选。与水一起搅拌制成泥浆,将其混合。 (I)被添加;并且优选0.5-10重量%的水泥。用于帮助砖的凝固和干燥。主要专利2930645及其附加专利。 2933787描述了可以在不使用压力的情况下制造且具有低密度的砖和其他模制品。本发明提供了具有任何所需形状的砖或模制品。密度可调;并具有可调的绝缘性能。

著录项

  • 公开/公告号DE2942454A1

    专利类型

  • 公开/公告日1981-07-23

    原文格式PDF

  • 申请/专利权人 KOEHNERAINERDR.;

    申请/专利号DE19792942454

  • 发明设计人 HORST KRAUSSRALF;

    申请日1979-10-20

  • 分类号C04B15/02;

  • 国家 DE

  • 入库时间 2022-08-22 15:14:15

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