Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-noise vibration reduction sleeper
The invention relates to the technical field of sleepers for rail transit, and particularly discloses a low-noise vibration reduction sleeper which comprises the following raw materials in parts by weight: 25-50 parts of rubber, 40-60 parts of fly ash, 500-650 parts of sand, 250-350 parts of cement, 950-1150 parts of stones, 120-150 parts of water, 4 parts of a water reducing agent and 80-100 parts of carbon fibers. The rubber is waste tire rubber powder and has a sieving rate of 95% through a 300 [mu]m sieve, the fly ash has a sieving rate of 95% through a 200 [mu]m sieve, the sand is natural sand, the cement is non-early-strength low-alkali Portland cement with a strength grade of 52.5, the stones are broken stones with particle sizes of 13.2 mm, 9.5 mm and 4.75 mm which are sequentially sieved by using a grading sieve sheet, the water is purified water, and the water reducing agent is a polycarboxylic acid water reducing agent. The carbon fibers are of a cylindrical framework structure formed by weaving carbon fiber filaments with the diameter being 1-3 mm, the length of the carbon fiber framework is 80% of the length of the sleeper, and the sleeper is formed through one-time pouring by using a mold. The problems that operation noise and vibration influence of rail transit are difficult to greatly reduce, and the input cost of noise reduction and vibration reduction engineering is high are solved.
本发明涉及轨道交通用轨枕技术领域，具体公开了一种低噪减振轨枕，轨枕的原材料重量份配比为橡胶25～50份、粉煤灰40～60份、砂500～650份、水泥250～350份、石子950～1150份、水120～150份、减水剂4份、碳纤维80～100份；橡胶为废旧轮胎橡胶粉并经300μm筛网过筛率为95％，粉煤灰经200μm筛网过筛率为95％，砂为天然砂，水泥为强度等级为52.5的非早强型低碱硅酸盐水泥，石子为使用分级筛片依次筛分出粒径为13.2mm、9.5mm和4.75mm的碎石，水选用纯净水，减水剂采用聚羧酸系减水剂，碳纤维为直径1～3mm碳纤维丝编织而成的圆柱形骨架结构，碳纤维骨架长度为轨枕长度的80％，轨枕使用模具一次浇筑成型；解决了轨道交通难以大幅降低运行噪音和振动影响以及降噪减振工程投入成本高的问题。
Low-noise vibration reduction sleeper
The invention relates to the technical field of sleepers for rail transit, and particularly discloses a low-noise vibration reduction sleeper which comprises the following raw materials in parts by weight: 25-50 parts of rubber, 40-60 parts of fly ash, 500-650 parts of sand, 250-350 parts of cement, 950-1150 parts of stones, 120-150 parts of water, 4 parts of a water reducing agent and 80-100 parts of carbon fibers. The rubber is waste tire rubber powder and has a sieving rate of 95% through a 300 [mu]m sieve, the fly ash has a sieving rate of 95% through a 200 [mu]m sieve, the sand is natural sand, the cement is non-early-strength low-alkali Portland cement with a strength grade of 52.5, the stones are broken stones with particle sizes of 13.2 mm, 9.5 mm and 4.75 mm which are sequentially sieved by using a grading sieve sheet, the water is purified water, and the water reducing agent is a polycarboxylic acid water reducing agent. The carbon fibers are of a cylindrical framework structure formed by weaving carbon fiber filaments with the diameter being 1-3 mm, the length of the carbon fiber framework is 80% of the length of the sleeper, and the sleeper is formed through one-time pouring by using a mold. The problems that operation noise and vibration influence of rail transit are difficult to greatly reduce, and the input cost of noise reduction and vibration reduction engineering is high are solved.
本发明涉及轨道交通用轨枕技术领域，具体公开了一种低噪减振轨枕，轨枕的原材料重量份配比为橡胶25～50份、粉煤灰40～60份、砂500～650份、水泥250～350份、石子950～1150份、水120～150份、减水剂4份、碳纤维80～100份；橡胶为废旧轮胎橡胶粉并经300μm筛网过筛率为95％，粉煤灰经200μm筛网过筛率为95％，砂为天然砂，水泥为强度等级为52.5的非早强型低碱硅酸盐水泥，石子为使用分级筛片依次筛分出粒径为13.2mm、9.5mm和4.75mm的碎石，水选用纯净水，减水剂采用聚羧酸系减水剂，碳纤维为直径1～3mm碳纤维丝编织而成的圆柱形骨架结构，碳纤维骨架长度为轨枕长度的80％，轨枕使用模具一次浇筑成型；解决了轨道交通难以大幅降低运行噪音和振动影响以及降噪减振工程投入成本高的问题。
Low-noise vibration reduction sleeper
一种低噪减振轨枕
SU JIA (Autor:in) / ZHANG YAN (Autor:in) / REN LIXUAN (Autor:in) / LIU QIN (Autor:in) / WANG WENLIANG (Autor:in) / LI ZIYAO (Autor:in) / ZHANG JIAXU (Autor:in) / CAO YING (Autor:in) / DU ZHENGYAN (Autor:in) / XU NUO (Autor:in)
10.08.2021
Patent
Elektronische Ressource
Chinesisch
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