| 1. | The long - term strength development of the hpc is superior to the normal concrete 高性能混凝土的后期强度发展明显高于普通强度混凝土。 |
| 2. | Result show that the more the loss of water at early - age , the lower strength of concrete acquired 研究结果表明,早期失水越多,混凝土中后期强度越低。 |
| 3. | Various curing condition and different amount of water evaporated in early - age curing would lead to different strength of concrete 早期养护条件不同,混凝土失水量不同,则混凝土中后期强度也不相同。 |
| 4. | The overall utilization of debris reaches 60 and production cost lowers with excellent social and economic benefits 其凝结时间、早强性能及后期强度均达国标425水泥的要求,废渣总利用率达60 ,生产成本降低,具有良好的社会经济效益。 |
| 5. | 5 . it is a foundation of analyse of intensity and kinematic or dynamic imitation that the realization of 3d - modeling of gs series high speed involute cylindrical gear unit 5 . gs系列高速渐开线圆柱齿轮传动三维建模的实现,为后期强度分析、运动学仿真和动力学仿真等奠定了基础。 |
| 6. | The result of the research indicates that the high performance concrete produced with this type of cement is of higher early and post strength and the electric flux of the concrete is low 研究结果表明,应用该水泥配制的高性能混凝土均具有较高的早期强度和后期强度,混凝土的电通量较低。 |
| 7. | The tests show that the activity of the compound admixtures of lithium - salt residue and fly ash is higher than that of fly ash and there is a optimum ratio between the lithium - salt residue and fly - ash . the activity of the compound admixtures is of importance for the later strength of concrete , especially for the 60d and 28d strength 大掺量复合掺合料混凝土强度试验中,该复合掺合料活性对混凝土后期强度的提高很重要,尤其60d 、 28d强度增长较大,但180d比60d增长幅度较小。 |
| 8. | The 5 batches with 31 groups of specimens were carried out four different curing systems including standard curing , hot water curing , dry heat curing and steam curing , and the regularity of rpc200 ' s strength with different curing conditions was studied . a conclusion was acquired by the experiment that the rpc200 ' s strength develops steadily in the steam curing which is mature and the economic benefits is more notable 制作四批23组试件,进行了标准养护、热水养护、高温干热养护、蒸汽养护等四种不同的养护制度的对比试验,通过试验研究发现采用蒸汽养护的rpc200后期强度发展稳定,并且蒸汽养护技术成熟,养护设备无需改造就可用于rpc200构件的养护,具有显著的经济效益。 |
| 9. | Tests results show that the solidified mud casting foundation both under water and on land can meet the bearing capacity demands of the container yard of yantian harbor in shenzhen city , and that underwater casting is favorable to the increase of the later bearing capacity of the foundation if the segregation between water and mud is controlled 试验结果表明,水下和陆上浇筑情况的固化淤泥填筑地基均能满足深圳盐田港集装箱堆场对地基承载力的要求,水下浇筑时只要控制好固化淤泥中的水不离析,反而能促进固化淤泥后期强度的增长。 |
| 10. | In this paper , the confecting technique on many ingredients " hpc was studied , and the optimum ratio of many ingredients in hpc was confirmed by regression method in spss and optimizing method in matlib , considering mechanics performance of high performance concrete and collapsing slump of hpc mixture . c : bf : fa : sf : uea = 3 : 1 : 1 : 0 . 2 : 0 . 02 . we confected out hpc with the ratio 用这一比例关系我们配制出塌落度达130mm 、早期强度高、后期强度增长幅度大的高性能混凝土,其7d 、 28d和56d的抗压强度分别为47 . 55mpa 、 71 . 05mpa和88 . 8mpa ,后期强度增长率可达到25 。 |