新拌混凝土在开始几天和几周时间内强度增长很快。
Fresh concrete gains strength most rapidly during the first few days and weeks.
但物理激发对新拌混凝土工作性造成一定的不利影响。
But physical excitation has a bad effect on the workability of fresh concrete.
废弃混凝土经回收后可作为再生骨料配制成新拌混凝土。
Demolished concrete could be recovered and then used as reclaimed aggregate to make new concrete batch.
新拌混凝土的一系列性质可以用流变特征及其流变参数描述。
A series of properties of fresh concrete can be described by the rheological characteristics and their parameters.
新拌混凝土水灰比的检测是推断混凝土早期强度的重要方法。
The measurement for water cement ratio of fresh concrete is an important method for estimating the early strength of concrete.
反映新拌混凝土中砂浆的体积与粗骨料紧密堆积时产生的空隙体积的比值；
One is Q, the ratio of voids content of coarse aggregates to the volume of mortar.
力求通过简便可行的检验，其结果能够与新拌混凝土的性能有很好的相关关系。
These testing method should be operated easily and testing data should correspond with the property of fresh concrete.
本文介绍了一种智能化的新拌混凝土水灰比快速测量系统、测量原理及系统组成。
In this paper, an intellect measure system and the measuring method about water cement ratio of fresh concrete are introduced.
本发明公开了一种侧限条件下新拌混凝土体积压缩系数的测试装置及其测试方法。
The invention discloses a testing device of the volume compression coefficient of freshly mixed concrete under a side-limit condition and a testing method thereof.
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.
试验结果表明：一定颗粒分布的石灰石粉能改善新拌混凝土的流动性能，减少泌水率及缩短凝结时间。
It is shown that the limestone powder with appropriate particle distribution can improve the fluidity of concrete, reduce bleeding rate and shorten the setting time.
它们对水泥净浆和新拌混凝土的工作性的影响有所不同，此外掺加两类减水剂的硬化产物的力学性能和微观结构也具有很大差别。
However, there are large distinctions between the influences of the two types to the workability of cement paste and fresh concrete, the mechanical properties and microstructure of hardened concrete.
由于该自密实混凝土优异的新拌工作性，因而降低了施工噪音，提高了施工效率和浇注质量，同时，也使得混凝土具有良好的强度和耐久性。
Due to its extraordinary workability, the casting noise was lowered, the casting efficiency, ability and quality were enhanced, and concrete strength and durability were enhanced also.
由于该自密实混凝土优异的新拌工作性，因而降低了施工噪音，提高了施工效率和浇注质量，同时，也使得混凝土具有良好的强度和耐久性。
Due to its extraordinary workability, the casting noise was lowered, the casting efficiency, ability and quality were enhanced, and concrete strength and durability were enhanced also.
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