This paper introduces the mix proportion of high fly ash content concrete instead of 30% cement with fly ash and some experiment results of the test examples in laboratory.
介绍了在水泥混凝土中，采用粉煤灰替代30 %水泥的高掺量粉煤灰混凝土的配合比设计，以及试件力学性能的室内实验结果。
Activator can enhance remarkably the activity of fly ash and accelerate secondary hydration reaction of high fly ash content concrete.
激发剂能显著提高粉煤灰的活性，加速高掺量粉煤灰二次水化反应。
The secondary hydration of high fly ash content concrete is slow at the early period and then the velocity of it gradually increase.
高掺量粉煤灰混凝土早期二次水化较为缓慢，随后二次速度逐渐加快。
Durability of concrete incorporating high fly ash content is expounded on basis of the case of overseas research and the mechanism of improving durability is also researched into.
根据国外研究情况，综述高掺量粉煤灰混凝土的耐久性及改善耐久性的机理。
Finally, the paper investigates how the volume content of polypropylene fibers affects the fracture parameters of high-volume fly ash concrete.
本文最后研究了聚丙烯纤维的体积含量对大掺量粉煤灰混凝土断裂参数的影响。
The result shows that high content fly ash active powder concrete has small volumetric shrinkage and excellent anti-carbonization resistance to penetration of chlorine ion and to sulfate corrosion.
研究结果表明，大掺量粉煤灰活性粉末混凝土具有较小的体积收缩率，抗碳化、抗氯离子渗透、耐硫酸盐浸蚀性优异。
The strength development in long time of concrete with high content of fly ash was investigated.
研究了高掺量粉煤灰混凝土的长期强度增长趋势。
Based on the practical projects, authors present that the concrete with ultra-high content of fly ash has better working performance and bright application future.
通过工程实践，说明超大掺量粉煤灰混凝土具有良好的工作性能及广阔的应用前景。
The experimental results show that with the increase of content and fineness of fly ash used in high strength concrete, the total areas of plastic cracking decrease.
本文主要就环境因素变化对高强混凝土塑性收缩开裂的影响趋势进行专门试验研究，并就其影响机理及相关的问题进行了分析和阐述。
The experimental results show that with the increase of content and fineness of fly ash used in high strength concrete, the total areas of plastic cracking decrease.
本文主要就环境因素变化对高强混凝土塑性收缩开裂的影响趋势进行专门试验研究，并就其影响机理及相关的问题进行了分析和阐述。
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