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PACKING MATERIAL COMPOSITION, AND METHOD FOR REPAIRING CEMENT ASPHALT MORTAR LAYER OF SLAB TRACK BY USING THE COMPOSITION
PACKING MATERIAL COMPOSITION, AND METHOD FOR REPAIRING CEMENT ASPHALT MORTAR LAYER OF SLAB TRACK BY USING THE COMPOSITION
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机译:包装材料组成,以及使用该组合物修复板坯轨道的水泥沥青砂浆层的方法
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摘要
PROBLEM TO BE SOLVED: To provide a packing material composition which has small shrinkage rate when hardened, has rapid hardenability and is excellent in injectability and hardness or strength properties after hardened, and to provide a method for repairing a cement asphalt mortar layer of a slab track by using the packing material composition.;SOLUTION: The packing material composition contains: 100 pts.mass of a resin composition, which has 0.08 or lower ratio of the tensile strength [N/mm2] to the elongation [%] at break when a tensile test is conducted, as the physical property thereof after hardened, by using a test piece prepared according to JIS K 6251,; and 100-300 pts.mass of aggregate. The resin composition is mixed with the aggregate while keeping them at 20°C so as to uniformly disperse the aggregate and then a hardening agent is thrown in an obtained mixture and agitated/mixed therewith. The density of the hardening agent-mixed mixture is defined as D1. The packing material composition is casted into a molding flask at the atmospheric temperature of 20°C, hardened/aged and cut into hardened bodies each having predetermined size. The density calculated by using the mass of the hardened body is defined as D2. The hardening shrinkage rate calculated by using an expression:{[(D2-D1)/D2]×100} is 6% or less.;COPYRIGHT: (C)2015,JPO&INPIT
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机译:解决的问题:提供一种填充材料组合物,该填充材料组合物在硬化时收缩率小,硬化性快,硬化后的注射性,硬度或强度特性优异,并且提供一种修复板坯的水泥沥青砂浆层的方法。解决方案:包装材料组合物包含:100磅质量的树脂组合物,其抗张强度[N / mm 2 Sup>]与通过使用根据JIS K 6251制备的试验片,进行拉伸试验时的断裂伸长率[%],作为其固化后的物理性能,和总量的100-300点。将树脂组合物与骨料混合,同时将其保持在20℃,以使骨料均匀地分散,然后将硬化剂投入到所获得的混合物中并与其搅拌/混合。混合有硬化剂的混合物的密度定义为D1。将包装材料组合物在20℃的大气温度下浇铸到型瓶中,硬化/时效并切成各自具有预定尺寸的硬化体。使用硬化体的质量计算出的密度定义为D2。使用表达式[{[(D2-D1)/ D2]×100}计算的硬化收缩率不超过6%。;版权:(C)2015,JPO&INPIT
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