密实混凝土

• It shows that the artificial neural network can be used as a new approach to predict the performance of scc and it will be helpful in proportioning the scc mixtures in the near future
  结果表明，神经网络方法是一种可用于自密实混凝土性能预测和设计的切实可行的崭新途径。
• Free - vibration and self - densifying concrete , also definited as self - compacting concrete , is a kind of concrete with good performance of fluidity , adherence and anti - segregation
  自密实混凝土是一种低水胶比的高性能混凝土,在追求高强度、高耐久性的同时,重点实现高施工性能。
• The sand is lack in the western china , so preparing self - compacting concrete with low and middle strength with super fine mountain sand and artifical sand is necessary
  西部地区河砂匮乏，应用特细山砂和机制砂配制中低强度等级的自密实混凝土是西部地区迫切需要开发的混凝土工程技术。
• From the test some conclusion could be drawn as follows . firstly , under the push loading , yield load and exteme load and failure load of sf is higher than that of nf , but the relative
  通过强度等级为c55的自密实混凝土在厦门南湖明珠加固工程中的成功应用，为自密实混凝土的推广应用提供实践经验。
• The elastic modules of the above - mentioned self - compacting concrete was not lower than ordinary concrete and the cost was reduced markedly then made good conditions for the self - compacting concrete using in practice of project
  同时明显降低了自密实混凝土的成本，为推向工程应用提供了更好的条件。
• By controlling the total paste volume of the mixture and blending with high volume of local fly ash , we get c50 - c60 grade self - compacting concrete with good workability
  在有效控制胶结料总用量的情况下，混凝土强度达到c50 - c60 ，弹性模量不低于普通混凝土，从而保证所研制的高性能自密实混凝土具有良好的力学性能。
• This paper briefly introduced the definition of workability of self - compacting concrete , and pointed out the existent problems on basis of analysis of the current testing methods and relevant specification
  本文简要介绍了自密实混凝土工作性能的涵义，并对现有自密实混凝土工作性能的检测方法和规范进行了分析，指出其可能存在的问题。
• The study of self - compacting concrete regarding mix - proportion technique , test method of workability , mechanical and structural behavior and also application to civil engineering were reported in detail
  摘要在收集大量国外最新文献的基础上，系统地综述了自密实混凝土配制技术、拌合物工作性检测方法、自密实混凝土力学性能方面的研究和应用情况。
• Self - compacting concrete is a kind of concrete with low w / b ratio and good workability , which does not need to pug . it is a trend for both the researchers and the concrete engineer
  自密实混凝土是一种在较低水灰比条件下，不泌水，不离析，不需振捣或只需少量振捣即达到均匀密实的混凝土，是混凝土工程技术的一个重要发展方向，也是目前国内外学者研究的一个热点。
• The grey model and extended grey dynamic model considering the influence of loading time on creep of concrete were used to predict the long - term deformation of 6 self - compacting concrete beams on the basis of short - term experimental data
  摘要采用灰色系统模型以及灰色动态拓广模型考虑荷载持续时间对混凝土徐变的影响对6根自密实混凝土梁的长期变形进行预测研究。