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- This paper analyzes the improvement mechanism of concrete performance by polypropylene fiber. 摘要分析聚丙烯纤维对混凝土性能的改善机理。
- The characteristics and mixture ratio design of the polypropylene fiber shotcrete are introduced. 摘要介绍了聚丙烯纤维喷射混凝土的特点及其配合比设计。
- The thesis studies the influence of compounding polypropylene fiber and expansion agent to Plastic shrinkage of mortar. 摘要混凝土的塑性收缩裂缝，是其结构原生缺陷的主要来源，无论是否可见，都会影响混凝土的耐久性。
- The volatile compounds in adhesive of polypropylene fiber tow filter rod were analysed by SPME-GC/MS. 用固相微萃取-气相色谱-质谱(SPME-GC/MS)法测定了丙纤滤棒粘合剂的挥发性成分,并对加工好的滤棒进行跟踪对比分析。
- The article also offers application samples of polypropylene fiber concrete used for various waterproof engineerings. 文中还介绍了聚丙烯纤维混凝土在各类防水工程中的应用实例。
- The results showed that the dispensability of the modified polypropylene fiber increased. 从宏观现象和实验分析得出:改性后的聚丙烯纤维分散性得到了提高。
- In recent years, the meliorated polypropylene fiber has been used more and more widely because its remarkable merit. 近年来改性聚丙烯纤维以其显著的优点而得到越来越广泛的应用。
- Compared with the general concrete spray layer, the stress distribution is more homogeneous and the yield ability is better in polypropylene fiber concrete spray layer. 与普通混凝土喷层相比，聚丙烯纤维混凝土喷层中的应力分布较均匀，同时具有较好的让压能力。
- Even grain color sideband, entire cotton and kapok color sideband,polypropylene fiber color sideband, polyester fiber color sideband,polyamide fiber (nylon) color sideband. 平纹色边带、全棉色边带、丙纶色边带、涤纶色边带、锦纶（尼龙）色边带。
- Polypropylene granulate add master batch of disperse dyes as raw to make dyed mo dified polypropylene fiber by polyblending melt spinning method. 以聚丙烯切片及添加分散染料的可染母粒为原料,采用共混熔融纺丝方法制备染色改性丙纶。
- The paper presents the evaluating method and the mechanism of physical and mechanical performance of concrete denatured by polypropylene fiber. 本文研究阐明了聚丙烯纤维改善混凝土物理力学性能的作用效果、评价方法和作用机理。
- Authors studied the influence of different kinds, quantity and length of polypropylene fiber on early stage plastic shrinkage crack of mortar. 研究不同品种、掺量、长度的聚丙烯纤维对砂浆早期塑性收缩裂缝的影响。
- The result shows that the polypropylene has better dyeability and can be used for producing disperse dyes and cationic dyes dyable polypropylene fiber. 结果表明：可染型聚丙烯树脂具有良好的可染性，可制取分散染料和阳离子染料可染的聚丙烯纤维。
- An apparatus was designed for measuring water contact angle of polypropylene fiber with an exact balance according to wetting force principle. 对丙纶的接触角进行了测量,并对纤维长度、入水深度和平衡时间等对接触角的影响进行了重点研究。
- The development of polypropylene fiber is the quickest in all syntheticfibers over ten years, and annual average rate of increase is 11.5%. 近十多年来;丙纶是四大合成纤维中发展最快的品种;年平均增长速度为11.;5%25。
- It also put forwards to the construction method of polypropylene fiber concrete and a few typical cases of its application. 简要介绍了聚丙烯纤维混凝土的施工方法以及若干国内外典型的应用实例。
- The influence of different content of polypropylene fiber and silica fume on the strength of the recycled concrete is also studied in... 研究了聚丙烯纤维和硅粉掺量对再生混凝土强度的影响,为实际工程应用,提供了理论依据。
- Last,fraction energy,impermeability and impact resistence and abrasion resistance of fiber cement concrete with small polypropylene fiber content is researched. 以及研究了低掺量聚丙烯纤维混凝土的断裂能、抗渗性、抗冲击性和耐磨性等。
- Fire behavior polypropylene fiber of high performance concrete is less than common concrete,it is an efficient means to resist crack when adding polypropylene fiber to concrete. 高性能混凝土的抗火性能比普通混凝土差,在混凝土中加入聚丙烯纤维可作为一种有效的混凝土温差补偿抗裂手段。
- And the effect of polypropylene fiber on reducing the loss of compressive strength of HPCM and reliving explosive spalling at elevated temperature was analyzed. 最后分析了聚丙烯纤维对减小高温后HPCM抗压强度损失和缓解高温爆裂现象等方面的作用。
