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玻璃管在有些工程上可以代替贵重的金属管道,因为它具有较一般金属管更好的化学稳定性,表面很光滑,有一定的机械强度。但是它的抗冲击强度很低,容易破碎,因此,它的应用范围受到很大限制。为了扩大它的使用范围,就必须解决玻璃管的脆性,提高它的抗冲击性能和其他机械强度。1958年,建筑工程部玻璃陶瓷研究院曾用秦皇岛耀华玻璃厂生产的壁厚为5～6公厘的玻璃管,在管壁外包上厚度为4～5公厘或10～11公厘的石棉水泥,进行了抗压、抗冲击、抗弯曲和水压等强度试验,结果表明机械强度提高很多,尤其是抗冲击强度提高
The glass tube can replace expensive metal pipes in some projects because it has better chemical stability than a normal metal tube, the surface is very smooth and has a certain degree of mechanical strength. However, its impact strength is very low and it is easily broken. Therefore, its application range is greatly limited. In order to expand its scope of use, it is necessary to solve the brittleness of the glass tube, increase its impact resistance and other mechanical strength. In 1958, the Glass Ceramics Research Institute of the Ministry of Construction and Engineering used glass tubes with a wall thickness of 5 to 6 mm produced by the Qinhuangdao Yaohua Glass Factory and had a thickness of 4 to 5 mm or 10 to 11 mm on the outer wall of the tube. Asbestos cement has been subjected to strength tests such as pressure resistance, impact resistance, bending resistance, and water pressure. The results show that the mechanical strength is improved much, especially when the impact strength is improved.