It is indicated the said crack is due to too small shrinkage ratio of the compacting die.
指出，拉丝模内孔之所以产生裂纹，是由于压模收缩比太小的原因。
The results show that, after soaking by acid rain, dry heat shrinkage ratio of the leather increases, and the dry thermostability decreases.
结果表明：经过酸雨浸泡后，加脂皮革的干热收缩率均高于未浸泡试样，耐干热性能下降。
Ultra light high strength, thermal insulation, waterproof, and the surface adhesion strong, activist and arch, not crack, dry shrinkage ratio as well as good.
超轻高强、保温隔热、防水防潮、与基面结合力强、集体性好、不起拱、不裂缝、干缩比好等优点。
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。
At the same time, the relation between the shrinkage ratio of combination yarn in the boil water and spinning processing parameter, especially the temperature of heated...
同时探讨了纺纱工艺参数——热板温度、芯丝拉伸倍数、纱线捻度、网络度等与变形纱沸水缩率间的关系。
The present invention provides a siliceous film-forming composition having such a small thickness shrinkage ratio that a highly homogeneous siliceous film can be obtained.
本发明提供一种硅质薄膜形成用组合物，该组合物具有小的厚度收缩率，以至于可以得到高均匀性的硅质薄膜。
At the same time, the relation between the shrinkage ratio of combination yarn in the boil water and spinning processing parameter, especially the temperature of heated plate,...
同时探讨了纺纱工艺参数——热板温度、芯丝拉伸倍数、纱线捻度、网络度等与变形纱沸水缩率间的关系。
The test of single compact weight decrease proved that when the shrinkage ratio of the compacting die is increased to over 1.22, there is no more crack initiated in the compact inner hole.
并用压坯单重递减法试验证实，当将压模收缩比增加到1 2 2以上时，可以保证压坯内孔不出现裂纹。
The quantitative relationship between water content and linear shrinkage ratio is gained under different dry density for Mengzi expansive soil, which has great value to engineering practice.
试验得出了蒙自膨胀土不同干密度条件下含水量与线缩率的定量关系，对工程实践有一定的参考价值。
Comparatively, with the reducing of shrinkage ratio of slit, the shock loads of receiving pool reduce, but the critical hydraulic head that just can cause deflecting heightens simultaneously.
相对而言，随着窄缝收缩比的减小，水垫塘冲击荷载略有减小，但同时起挑水头增加。
Aiming at these defects, a kind of special mortar for plastering aerated concrete with good workability, good water retention, high bonding strength and low shrinkage ratio has been prepared.
针对这些缺陷，研制了一种和易性好、保水性好、粘结强度高、收缩率低，适合加气混凝土抹灰用的砂浆。
The results show that concrete with 40 percent fly ash has good properties of strength, resistance permeating of Cl-and resistance erosion of sulfate. Besides, it has a small shrinkage ratio.
试验结果表明，添加了40%以上粉煤灰的混凝土仍有较好的强度，较好的抗氯离子渗透、抗硫酸盐侵蚀等性能，且具有较小的体积收缩率。
The shrinkage and crimp behavior of CDP-FDY fibers at different drawn temperature after heat treatment are studied by means of boiling water shrinkage, hot shrinkage, crimp ratio and crimp rigidity.
通过沸水收缩率、干热收缩率、卷曲度、卷曲弹性率等一系列测试方法讨论了不同拉伸温度的CDP - FDY纤维热处理后的收缩和卷曲性能。
The effect of hydrothermal treatment on drying rate, ratio of tangential shrinkage to radial shrinkage and drying stress is discussed.
讨论了热湿处理与干燥速度、弦径向干缩比和干燥应力之间的关系。
It is shown that the shrinkage, crimp ratio of CDP-FDY fibers reduce and the crimp rigidity increase with the increasing drawn temperature.
结果表明：拉伸温度高的CDP纤维的收缩率、卷曲度低，而卷曲弹性率高；
The self-shrinkage of concrete with higher water to binder ratio is negligible.
高水胶比混凝土的自收缩可以忽略不计。
The influence of different superplasticizers on drying shrinkage of mortar with the same water cement ratio and same sand cement ratio was investigated in this article.
通过试验研究了几种类型的高效减水剂在同样水灰比和砂灰比的情况下对砂浆干燥收缩性能的影响。
The effect of various factors shrinkage property of slag based geopolymer concrete are studied by shrinkage test, such as content and modulus of water glass, liquid-solid ratio, gel material content.
通过混凝土收缩试验，研究了水玻璃掺量、水玻璃模数、液固比、胶凝材料用量等因素对无机矿物聚合物混凝土收缩性能的影响。
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。
It is discussed that adiabatic material, as well as ratio of height and width effected solidification, shrinkage cavity and shrinkage porosity.
讨论了锭模的高宽比、绝热板材质对凝固位置及缩孔疏松的影响。
The autogenous shrinkage of HPC develops greatly and mainly during early age due to a low water binder ratio, but there is no standard test method for early autogenous shrinkage of the concrete.
高性能混凝土因水胶比低、自收缩大且主要发生在早期，而目前对于早期自收缩的测量还没有统一标准可依。
Effects of several factors of binders, including the total amount of binder, water binder ratio and the dosage of fly ash, on drying shrinkage of concrete are discussed in this paper.
通过试验分析了胶凝材料总量、水胶比、粉煤灰掺量对混凝土干缩性能的影响。
Results demonstrate the following optimum conditions for low-shrinkage sliver: hot stretch ratio of breaking machine, 1.
结果表明获得较低缩率的最佳工艺条件是：拉断机热拉伸倍数为1。
According to the optimal results, the flange casting with the ratio of diameter and height of 10 was produced successfully, the shrinkage defect was avoided, the quality of the castings was ensured.
根据优化结果进行生产，成功地生产了直径与高度比为10的法兰铸件，避免了缩孔缺陷，保证了铸件的质量。
The shrinkage of shrinkage-compensated concrete with different steel ratio.
配筋率不同的情况下补偿收缩混凝土的收缩规律；
The influence of different water-cement ratio on early-age autogenous shrinkage and total shrinkage of concrete under dry condition is experimented in this paper.
进行了不同水灰比对混凝土早期自收缩及干燥条件下总收缩影响的试验研究。
At the same time, the hot shrinkage, crimp ratio and crimp rigidity increase with the increasing heat treatment temperature and time.
CDP - FDY纤维的干热收缩率、卷曲度、卷曲弹性率均随热处理温度的上升、时间的延长而提高。
The testing method of acquiring the data guide lines is based on provision of GB8076-1997 including bleeding rate, slump, concreting time. ratio of compressive strength. shrinkage rate and so on.
获得数据指标的试验方法是根据GB8076- 1997规定试验方法，包括：泌水率、坍落度、凝结时间差、抗压强度比、收缩率等。
Results indicate that the admixture can reduce dry shrinkage effectively, delay or reduce concrete's cracks, improve comprehensive strength, reduce bleeding ratio and enhance durability etc.
结果表明：JS J减缩剂能有效降低砂浆和混凝土的干缩，推迟和减少混凝土的开裂，适当提高砂浆和混凝土的强度，以及降低泌水率、提高耐久性等。
The paper has studied the influence of water-cement ratio on the early-age shrinkge and whole shrinkge through self-deviced experimental apparatus for measuring early-age shrinkage.
通过自行设计早期收缩测试装置研究了水灰比对混凝土早期收缩的影响规律并在此基础上测试了混凝土总收缩。
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