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建筑工业使用的水凝水泥的抗张强度和抗冲击强度是很差的,克服这一缺点的方法是以适当的纤维去增强它。过去十年间对各种纤维增强水泥的性质进行了研究,这些纤维包括:玻璃纤维、钢丝以及聚合物纤维(至于石棉,早就用来增强水泥了)。几年前有人发现水泥浆的内在脆性可以通过加入很少量的合成纤维,如尼龙或聚丙烯纤维来改善。这些合成纤维增强波特兰水泥后,赋于它高度的抗碎裂性能。在英国,已经将纤维化的聚丙烯带代替钢筋增强水泥,制造反应堆外壳。虽然合成纤维对改善水泥的抗冲击强度
The hydraulic cement used in the construction industry is poor in tensile strength and impact strength and the way to overcome this disadvantage is to strengthen it with suitable fibers. The properties of various fiber-reinforced cements have been studied over the last decade. These include glass fibers, steel wires, and polymer fibers (asbestos, which has long been used to reinforce cement). A few years ago it was discovered that the inherent brittleness of grout can be improved by adding very small amounts of synthetic fibers such as nylon or polypropylene fibers. These synthetic fibers reinforce Portland cement, giving it a high degree of chipping resistance. In the UK, fiber-reinforced polypropylene tapes have been used instead of rebar reinforcements to make reactor housings. Although synthetic fibers improve the impact strength of cement