the raising of early stage strength and construction standards for the soils tested and studied.
针对铁路路基典型病害，采用目前广泛使用的石灰改良土技术，对膨胀土进行了改良效果、提高早期强度及填筑标准的试验研究，得出了一些有实际意义的结果。
But even all requirements of some fly-ash meet the standards; its early stage strength may not be qualified.
但某些粉煤灰的各项指标即使满足了规范要求,二灰混合料的早期强度也未必合格;相反,某些不满足规范要求的粉煤灰,二灰混合料的路用性能却满足相关技术标准的要求。
Improving of early strength of lime-flyash mixture with chemical admixtures;
利用化学添加剂提高二灰类材料的早期强度
Measures to improve the early strength of lime-fly ash stabilized soil;
提高二灰稳定土早期强度的主要措施
The application of early strength prediction method in premixed concrete production;
早期强度推定法在商品混凝土生产中的应用
Study on Improving the Early Strength of Filling
提高胶结充填体早期强度的试验研究
Influences of Polycarboxylate Superplasticizer Typed Ultra-high Strength on the Development of Concrete Strength
超早强型聚羧酸盐超塑化剂对混凝土早期强度发展的影响
Study on the Approach to Admixture Increasing Eraly Strength of Lime and Fly-Ash Stabilized Aggregate;
外掺剂对提高二灰稳定粒料早期强度的研究
Research on Early Strength and Influence Factors of Paste-like Backfill Material
似膏体充填体的早期强度及其影响因素研究
The results of micro-analyses indicated that the hydration speed of portland limestone cement is faster, as well as the strength of the cement is higher at early stage.
通过微观分析，证实了石灰石硅酸盐水泥早期水化速度较快，具有早期强度较高的特点。
The effect of material on the emulsifying special of cation-emulsified pitch and the earlier strength of the mixture;
论材料因素对阳离子乳化沥青破乳速度及混合料早期强度的影响
Experimental Study on Fly Ash Concrete Early Strength Prognosticated by Simplified Maturity Degree Theory
用简化成熟度理论预测粉煤灰混凝土早期强度的试验研究
Here is a study on how to energize the activation of water-granulated slag to improve the slag cement's early strength.
研究了如何激发水淬矿渣的活性以提高矿渣水泥的早期强度。
It can improve the workability, pumping properties and early strength of the concrete.
使混凝土的和易性、泵性均得到明显的改善，可提高早期强度。
A Study on Early Strength of 425~# Slag Portland Cement and Preductivity
425~#矿渣硅酸盐水泥早期强度及提高台时产量研究
To retain the early strength and avoid carbonization,1.0%-1.5% of alkaline agent can be added.
④可添加1.0%-1.5%碱性激发剂元明粉以提高其早期强度和抗碳化性能;
Standard for test method of early reckoning concrete strength
早期推定混凝土强度试验方法
Experimental Study on Early Estimating the Strength of Fly ash Concrete;
早期推定粉煤灰混凝土强度试验研究
PREDICTION OF COMPRESSIVE STRENGTH AND PERMEABILITY OF CONCRTE AT EARLY AGES
混凝土抗压强度与渗透性的早期预测
The Strength Development and Evaluation of High-strength Concrete at Early Age
高强混凝土早龄期的强度发展及其评价
Mechanical properties of fiber-reinforced high-strength fly-ash concrete on the early age
纤维高强粉煤灰混凝土早龄期强度试验研究
Study on Influence of Concrete Early Loading on Its Later Strength
混凝土早期受荷对后期强度影响的研究
Studies on Early Strength of a Low Density Multi-Element Composite Cement Slurry
多元复合低密度水泥石早期固化强度研究