振捣过程中掌握好振动半径范围，防止重振、漏振。
During the vibrating and tamping, the range of vibrating radius shall be grasped well to prevent from revibration and vibration missing.
并以工程实践为依据研究混凝土二次振捣的可行性。
It also studies the feasibility of concrete re - vibrating based on the engineering practice.
这种拌合料灌入合适的模框中，振捣压实，让它硬化。
This mixture is placed into a suitable mould, compacted, and allowed to harden .
免振捣混凝土的配比设计理论也需要进一步地加以完善。
混凝土振捣前做好试块留置组数计划，并检查现场试模是否够。
Before concrete vibration starts, plan well number of sets of sample blocks to be retained and check whether on-site form testing is enough.
配制免振捣混凝土的关键是掺加能增强混凝土和易性的外加剂。
The key of compounding avoid vibration concrete is to mix the addition agent that can strength concrete amiability.
而且还对自密实混凝土与同配比振捣成型混凝土的抗压强度进行比较。
Finally, the SCC is compared with the same mixing but vibrated concrete on compressive strength.
本文介绍混凝土二次振捣的施工方法，并对二次振捣的机理进行了分析。
The construction method of concrete re-vibrating is introduced and the mechanism of re-vibrating is analysed in the paper.
本文介绍混凝土二次振捣的施工方法，并对二次振捣的机理进行了分析。
This article describes the method of secondary vibration of concrete construction, and analyzes the mechanism of secondary vibration.
清理基面后，安装模板，将山砂无机灌浆浆料注入结构物中，无需振捣。
After a base plane cleaning, a template is installed, then the hill sand inorganic grouting material is injected into the structure without vibration.
如：严把原材料质量关，掺入膨胀剂，增加抗裂钢筋网，采用二次振捣等等。
The measures contain: good raw materials, adding swelling agent, adding reinforcing steel net to preventing cracking and using second tamping. Through those methods and strictly control...
该水泥加水拌和后粘度较大，施工时须用机械振捣密实，防止出现蜂窝和孔洞；
The cement when being mixed with water , has strong viscosity, must be vibrated mechanically to avoid honeycombs and holes;
对12根经过长期荷载作用卸载后的自密实与振捣混凝土梁进行了静力试验研究。
This paper reports the test results of 12 beam specimens including 8 SCC simple beams and 2 vibrated concrete simple beams and 2 SCC continuous beams under static loading after long-term actions.
产生原因：振捣后没有用拖板、刮尺抹平；混凝土未达终凝就在上面行人和操作。
Reasons: No scraping work after vibration; People walks or works on concrete before final set.
钢筋之间应该有足够的空间允许振捣器进入混凝土振捣和并使混泥土能良好的压实。
There should be sufficient space between the resulting columns of bars to allow access for vibrators and good compaction of the concrete.
本实用新型属于路面工程机械，涉及一种用于路面摊铺机的摊铺机熨平板振捣装置。
The utility model belongs to pavement engineering mechanisms and relates to a vibrating device for the ironing plate of a pavement spreader.
在砼前后接槎处，加强振捣，但也不能过度振捣以防砼发生粗骨料下沉和分层离析。
At the contact point of concrete, intensify the movement of vibrator, but not so fast, otherwise coarse aggregate will submerged and separated.
每一振点的振捣延续时间应使混凝土表面呈现浮浆和不再沉落为止，约20 ~30s。
For every vibrating point, the vibration shall go on till free mortar appears on the concrete surface and not sinks any more, normally 20 ~ 30s.
多功能摊铺机熨平工作装置的振捣频率和振幅对摊铺层的平整度和密实度的影响是非常大的。
The oscillating frequency and amplitude of screeding device of multifunctional paver influence the paving surface on smoothness and compaction greatly.
二是控制新拌混凝土的和易性，如果混凝土离析泌水，严格控制振捣时间，必须适时进行复振。
The second is control of workability of fresh concrete, if concrete isolation secretion of water, strictly control the vibration time, vibration rehabilitation must be timely.
提出对高抛免振捣自密实混凝土的工作机理、配合比设计、工作性评价方法及相应的试验方法。
Mechanism, Mix ratio design, workability evaluation and test method of high-dropping shake-free self-compacting concrete were put forward.
用车床和外圆磨床组合的方式经济而高效地生产摊铺机双振捣轴，加工工装起着十分重要的作用。
While machining dual vibrating shaft for paver using lathe and circular grinding, the tools set up are very important.
基础模板支设不牢固，浇筑混凝土下料过高、混凝土振捣撞击，使模板位移，造成基准线产生偏差。
The foundation template support is not strong, the pouring concrete is too high, the concrete vibration impact, so that the template displacement, resulting in the deviation of the baseline.
针对门机大梁以上特点，对梁体模板设计、混凝土浇筑振捣、梁体张拉施工技术难点进行了深入研究。
As to the above characteristics of the gantry crane, the further study has been made for formwork design, concreting and vibrating and girder in tension.
混凝土浇筑过程采用正确的振捣方式和经纬仪跟踪监控，保证柱脚螺栓的预埋精度，提高了安装速度。
During concrete pouring, by selecting correct vibrating method and surveying with theodolite, the embedded precision of column bolt is assured and installation speed is improved.
在钢管脚手架上施工的电焊机、振捣器等用电设备应放置在枯燥的木板上，操作人员应穿戴绝缘的防护用品。
In the construction of steel pipe scaffold on electric welding machine, vibrator and other electrical equipment should be placed in dry wood, operators shall wear insulating protective equipment.
在钢管脚手架上施工的电焊机、振捣器等用电设备应放置在枯燥的木板上，操作人员应穿戴绝缘的防护用品。
In the construction of steel pipe scaffold on electric welding machine, vibrator and other electrical equipment should be placed in dry wood, operators shall wear insulating protective equipment.
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