但掺入后混凝土早期强度或多或少地要受到一些影响。
高性能混凝土早期强度增长较快，其早期收缩也较大。
HPC's early strength increases rapidly, and so does its early shrinkage.
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.
本掺和料的碾压混凝土早期强度优于掺加II级粉煤灰的碾压混凝 土早期强度。
The early intensity of the concrete mixed with the admixture is superior to that of concrete mixed with II-level fly ash.
故合理提高混凝土早期强度、合理布置施工点、加强安全畅通管理工作，是解决问题的关键。
It is key to improve the intensity of concrete, properly layout construction spots, and strengthen free traffic management in solving this problem.
沪闵高架工程预制节段梁采用蒸汽养护的工艺，使混凝土早期强度增长，满足了施工进度要求。
The application of steam curing process for precast segmental beams of Humin Elevated Project has increased the early strength of concrete and met the requirements of construction progress.
采取适宜措施确保寒冷环境中已浇筑的混凝土早期强度尽快增长，是实现工程如期竣工的要素之一。
It is one of the essential factors to take appropriate measurements to ensure that the initial strength of concrete poured increase as soon as possible for the sake of the time limit for a project.
研究结果表明：随着页岩陶粒预湿程度的增加，混凝土早期强度降低幅度较后期强度大，而强度增长率明显增大。
The results show that, with pre-wetting degree increasing, early strength descent scope is greater than later strength, the strength growth rate obviously broadens.
研究结果表明：随着页岩陶粒预湿程度的增加，混凝土早期强度降低幅度较后期强度大，而强度增长率明显增大。
According to the result, with pre-wetting degree increasing, early strength descent scope is greater than later strength, the strength growth rate obviously broadens.
结果表明：掺加激发剂能有效改善大掺量粉煤灰混凝土早期强度低的问题，而且可以在降低水泥水化热的同时，延缓混凝土早期放热峰值的出现，并使混凝土具有良好的抗渗性能。
The results show that the early strength and the permeability of concrete can be improved effectively, and the hydration heat can be reduced and the hot peak value at the early age can be postponed.
使混凝土的和易性、可泵性均得到明显的改善，可提高早期强度。
It can improve the workability, pumping properties and early strength of the 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。
Various curing condition and different amount of water evaporated in early-age curing would lead to different strength of concrete.
磷渣粉作为掺合料对混凝土性能产生一些不利的影响，一是早期强度低，二是凝结时间长。
As we all know, the use of phosphorous slag powder(PSP)as admixture can lead to some adverse effects in concrete performance, such as low early strength and prolonged setting times.
也可用作早强剂，大幅度提高混凝土的早期强度。
It can also be used as early strength agent, so that the early strength of concrete can be improved substantially.
该混凝土具有流动性大，坍落度损失小，早期强度高的特点，适合于高层、大跨度的现代建筑结构。
The concrete has the characteristics of large fluidity, low slump loss, and high early strength, and it is suitable for the highrise and long-span building structure.
黄壁庄水库副坝防渗心墙加固工程所需高性能混凝土，要求和易性好、早期强度低、后期强度高、抗渗性能好、低弹模和高抗拉强度。
The high performance concrete for core wall of earth dam must be good workability, low early strength, high final strength, high seepage resistance, low elasticity modulus and high tensile strength.
混凝土拌和物经真空脱水处理后，早期强度提高，拆模时间提前，可提高工效。
The concrete mixtures treated by vacuum water free can enhance the early stage strength, form release time and working efficiency.
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。
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.
对早期失水较少的混凝土，加强湿养护，混凝土强度能得到较大的补偿。
For the concrete which losing water is little at early-age, strengthen curing, the strength of concrete will be compensated.
研究结果表明，早期失水越多，混凝土中后期强度越低。
Result show that the more the loss of water at early-age, the lower strength of concrete acquired.
研究了具有高流动性的流态混凝土的配比、流动性、早期裂纹扩展、强度、收缩、碳化和抗冻融性，这种混凝土无论在成本上还是性能上都是非常可行的。
Mixture proportions, flowability, crack propagation at early ages, strength, shrinkage, carbonation and the freezing and thawing resistance of flowing concrete with high flowability were investigated.
研究发现，在混凝土中掺加杜拉纤维对混凝土的劈拉强度有很大的提高，提高了约14.6%，对混凝土的早期抗收缩性能也有显著的提高。
It is pointed that Durafibers added in concrete improve its split tensile strength more, approximately 14.6%, and its shrinkage-resistance increasing obviously.
当废石粉掺量由10%增加至20%时，混凝土的工作性能均会得到提高，同时混凝土的早期强度也逐渐升高，但混凝土后期强度却会降低。
When the stone waste powder content raise from 10% to 20%, the workability of the concrete was improved, the early strength of concrete was gradually increased and the later strength was reduced.
再生混凝土的早期抗压强度和弹性模量对于该类结构施工期的安全性具有重要影响。
The mechanical properties of recycled aggregate concrete at early age are very important for the construction projects safety using this kind of material.
自收缩会造成混凝土的早期收缩开裂，严重影响混凝土结构的强度和耐久性。
Autogenous-shrinkage will cause the concrete early crack, which will seriously affect the concrete strength and durability.
基于试验结果，建议了再生混凝土早期抗压强度和弹性模量的计算公式。
Based on the test results, calculation equations for compressive strength and elastic modulus of recycled aggregate concrete were proposed.
对混凝土减缩防水密实剂对混凝土的早期收缩性能及对水泥胶砂强度的影响进行了试验研究。
The effects of this admixture on early-age shrinkage properties of concrete and cement mortar strength were investigated in this paper.
对混凝土减缩防水密实剂对混凝土的早期收缩性能及对水泥胶砂强度的影响进行了试验研究。
The effects of this admixture on early-age shrinkage properties of concrete and cement mortar strength were investigated in this paper.
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