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据西德《地下工程》杂志报导,近十年来,在地下工程中,出现了不少用于喷射密封防水的新材料。这些材料按其性质不同大致可分两类:玻璃纤维聚酯和沥青——橡胶混合物。掺入20～25%玻璃纤维的非饱和聚酯是由一组热固性塑料形成的合成物。耐压力
According to West Germany’s “Underground Engineering” magazine, in the past decade, a lot of new materials for spray sealing and waterproofing have appeared in underground engineering. These materials can be divided into two categories according to their nature: glass fiber polyester and asphalt - rubber mixture. Unsaturated polyesters incorporating 20 to 25% glass fibers are composites formed from a group of thermosetting plastics. Pressure resistance