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- 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。
- Some manufacturers use fiber reinforcement to control plastic shrinkage and thermal cracking. 一些生产商使用纤维增强来控制塑性收缩和热胀开裂。
- The amount and the kind of admixture could also impose on the plastic shrinkage. 矿物掺和料的品种及掺量对净浆的塑性收缩也有很大的影响。
- The paper states that the plastic cracks after shaped the pumping concreting divides into plastic settlement crack and plastic shrinkage crack. 本文阐述泵送混凝土浇筑成型后产生的塑性裂缝,分为塑性沉降裂缝和塑性收缩裂缝。
- In this work, the effect of water-binder ratios (w/b) and amount of admixture on the plastic shrinkage of blended cement paste were investigated. 摘要采用自行设计测定塑性收缩的方法，对不同胶凝材料净浆在不同水胶比情况下的塑性收缩变化规律及矿物掺和料对塑性收缩的影响进行了研究。
- 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。
- In addition,water quantity of concrete is bigger,plastic shrinkage of concrete is bigger when water to cement ratio is invariable. 通过试验研究了混凝土用水量、水灰比等混凝土配合比参数对混凝土塑性收缩的影响。
- The types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking. 将引起混凝土裂缝的类型归纳为塑性收缩开裂,干燥收缩开裂,水化热开裂三种,并对其表象及成因进行了阐述。
- The effects of polypropylene fiber on the plastic shrinkage stress and plastic shrinkage ratio of the mortars were investigated by use of a self-designed measuring device. 采用自行研制的水泥砂浆塑性收缩应力测试装置和非接触式测长装置,分别研究了低掺量的聚丙烯纤维对水泥砂浆塑性收缩应力和塑性收缩率的影响。
- The plastic shrinkage decreases with the increase of water-binder ratios between 0.28 and 0.35,while increases for the ratios from 0.35 to 0.45.The amount and the kind of admixture could also impose on the plastic shrinkage. 水胶比为0.;28~0
- This paper introduces the influence of the polyropylene fiber on plastic shrinkage and anti-permeability of concrete,and the analysis of anti-cracking and impermeability mechanism. 介绍了聚丙烯纤维对混凝土塑性收缩及抗渗性能的影响,并进行机理分析,最后展望了聚丙烯纤维混凝土在渠道防渗工程中的应用前景。
- Plastics shrinkage causes the deformation of injection molded parts.The pressure gradient,temperature gradient and shear stress in the cavity make nonuniform shrinkage. 注塑件变形始于塑料的收缩,型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
- plastic shrinkage capillary stress 塑性毛细管收缩应力
- plastic shrinkage cracking index 抗裂指数
- There has been some shrinkage in our export trade. 我们的出口贸易量已有些减少。
- The man is carrying a small black plastic handbag. 这个人提着一个黑色的小塑料提袋。
- He is a plastic surgery specialist. 他是个整形外科医生。
- Many items in daily use are made out of plastic. 有很多日常生活用品是塑料制的。
- It's best to allow for shrinkage when buying cotton clothes. 买棉布衣服时最好考虑到它们的缩水率。
- It is some kind of plastic made to imitate iron. 这是一种塑胶，但外观仿制得像铁。
