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。
Besides, la with high water content is beneficial to restraining the plastic shrinkage cracking of LWAC.
此外，高含水率轻骨料更有利于抑制混凝土早期塑性收缩开裂。
The experimental results show that plastic Shrinkage relate to water to cement ratio and there is critical water to cement ratio.
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。
Thus, research on measures for superfine sand concrete to get rid of plastic shrinkage cracks is of important practical significance.
因此，对特细砂混凝土塑性收缩防裂措施进行研究，具有重要的现实意义。
Therefore, the technology combining steel fiber with expensive agent is appropriate to the plastic shrinkage and cracking of concretes.
因此，采用膨胀剂与钢纤维的复合技术是防止混凝土发生塑性收缩开裂的比较理想的技术措施。
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 paper states that the plastic cracks after shaped the pumping concreting divides into plastic settlement crack and plastic shrinkage crack.
开裂应力测定装置测试了水泥砂浆、混凝土塑性抗拉强度和塑性收缩开裂应力。
The capillary pressure which is the effect of the water loss from the concrete surface, is the origin of the plastic shrinkage in concrete cracking.
由于这种裂缝是由于混凝土塑性收缩引起，所以称之为塑性收缩裂缝。
But almost all the attention of the plastic shrinkage crack are focus on the medium and coarse sand concrete and the study of super fine one not found.
目前关于塑性收缩裂缝的研究几乎都集中在中粗砂混凝土，对于特细砂混凝土塑性收缩裂缝及其相关问题的研究几乎没有。
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。
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。
Obviously, the addition of polypropylene fibers is significant in controlling plastic shrinkage cracks in the early stage and improving ductility for concrete at low fiber volume fraction.
低掺量的聚丙烯纤维掺入混凝土后可显著控制混凝土早期收缩裂缝，提高混凝土的耐久性。
In this paper, the effects of polypropylene fibers on the plastic shrinkage stresses of the cement mortars were investigated by use of self-designed plastic shrinkage stresses measuring device.
采用自行设计的水泥砂浆塑性收缩应力测试装置研究了低掺量下聚丙烯纤维对水泥砂浆塑性收缩应力影响。
Based on analyzing the eruption and tiny aggregate effect of fly ash, the influence of fly ash on the shrinkage fissure of concrete is studied, caused by the plastic deformation, dry or temperature.
以粉煤灰的火山灰效应、微集料效应分析为基础，分析研究了粉煤灰对混凝土塑性收缩、干缩、自缩和温度收缩裂缝的影响。
Solve the surface shrinkage of plastic products completely.
彻底解决塑料产品的表面缩水现象。
The dimensional tolerance of plastic parts shall not be less than 10% of shrinkage.
塑件的尺寸公差不能低于收缩率的10%。
Industrial plastic parts are usually requested to have high precision and complicated shapes, so it is important to control the shrinkage rates of injection-molded parts.
在这些应用场合，不仅要求塑料制品的精度高，而且塑料制品形状也比较复杂，这使得对注塑成型制品收缩率的控制变得十分重要。
The shrinkage of plastic products is a very important parameter and need to be forecast during the design of injection molds, which affects the shape and size precision of the products.
塑料的成型收缩率直接关系到制品的形状和尺寸精度，因此在塑料注射成型的模具设计中，迫切需要预测制品的成型收缩率。
According to the causes of crack occurrence and the weather characteristics in the project area, it is key to prevent the cracks such as the plastic crack, dry crack and cold shrinkage crack.
根据混凝土面板产生裂缝的原因，并结合工程区的气候特点，认为控制面板的塑性收缩、干缩与冷缩裂缝是防止裂缝产生的重点。
Plastic cracking, temperature cracking and dry shrinkage cracking are always occurred during construction and application of the ready mix concrete.
塑性开裂、温度开裂以及收缩开裂是混凝土施工应用中经常出现的质量通病。
The utility model discloses a wrapping mechanism for thermal shrinkage plastic film packing machine comprising an axis, a bottle conveying belt, and a sprocket gear.
本实用新型公开了一种热收缩塑膜包装机的裹包机构，该机构包括轴、输瓶带、链轮。
The dimensional precision and standard of plastic product and difference between plastic shrinking featured value and shrinkage were described.
介绍塑料件的尺寸精度、塑料件尺寸公差标准，以及塑料收缩特性值同收缩率的区别和计算方法。
The utility model relates to a hot shrinkage pipe device which can evenly hot blow a plastic pipe to be deformed and quickly cold blow the deformed plastic pipe for shaping.
本实用新型涉及一种能将塑料管均匀吹热变形，并快速吹冷定形的热缩管装置。
Shrinkage is one of the main factors influencing the plastic product size precision, was indeed molding mold design size of the main parameters.
一般要求的塑料制品通常只按有关手册或资料大致确定塑料收缩率的大小，精密要求较高的塑料制品要求制作样条模来验证塑件的正确收缩率。
Shrinkage is one of the main factors influencing the plastic product size precision, was indeed molding mold design size of the main parameters.
一般要求的塑料制品通常只按有关手册或资料大致确定塑料收缩率的大小，精密要求较高的塑料制品要求制作样条模来验证塑件的正确收缩率。
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