Experimental studies on capabilities of steam curing ultra-fine fly ash high performance concrete;
蒸养超细粉煤灰高性能混凝土性能试验研究
Research on integrated utilization of ultra-fine fly ash-fluorogypsum in highway repair;
超细粉煤灰-氟石膏在道路修补工程中的综合利用研究
Some factors affecting early comprssive strength of steam-curing concrete with ultra-fine fly ash;
蒸养超细粉煤灰混凝土早期强度影响因素研究
Experiment and application of double-admixing concrete with micro-powder of slag and ground fly ash;
矿渣微粉和磨细粉煤灰双掺混凝土的试验应用
The measures of the surface treated for recycled aggregate (RA),or incorporating high effect water reducer and ground fly ash (GFA) in regenerated concrete (RC) were taken,the workability of RC could be remarkable improved.
采取对再生集料表面处理 ,或在再生混凝土体系中加入高效减水剂和磨细粉煤灰等措施 ,极大地改善了再生混凝土的工作性能。
Test results show that the addition of ground fly ash can significantly improve not only the mechanical properties of cement and concrete but also the rheological behavior of concret
研究了磨细粉煤灰的形貌特征及其掺量对水泥和混凝土强度及混凝土流变性能的影响。
A kind of complex solid protecting slag for stainless steel molded-on has been developed with Baosteel finely ground fly ash as its base material.
利用宝钢磨细粉煤灰为基料,开发了一种高附加值、具有双重功能(既能提高钢锭表面质量、又能改善锭头补缩质量)的不锈钢模铸复合型固体保护渣。
The results indicated that the addition of silica fume increased cracking of HPC at early age,and the addition of finely ground fly ash with high quality decrea.
结果表明 :掺硅灰加剧了混凝土的早期开裂 ;优质磨细粉煤灰的加入对混凝土早期开裂有一定的抑制作用。
Fly ash based load-bearing cellular concrete has been developed by using superfine fly ash as substitute for original ash in this paper to coalesce the environment protection development in concrete materials at present.
结合目前混凝土材料向绿色高性能化发展的方向 ,以超细粉煤灰作为加气混凝土配料以替代原状粉煤灰 ,配制出符合承重要求的加气混凝土。
It is experimentally tested for water reducing rate of cement paste and water-reducing mechanism,in which Superfine fly ash and superplasticizer have been added respectively or combinatively,and the Superfine fly ash is prepared by the steam gas mill.
通过对超细粉煤灰在单掺,及与高效减水剂复合掺入时的减水率进行试验研究,分析了"过热蒸汽气流磨"制备的超细粉煤灰与高效减水剂的复合减水效应及减水机理,结果表明,在不掺加高效减水剂的条件下,粒径大于10μm的超细粉煤灰对水泥浆有一定的减水增塑作用;当与高效减水剂共同作用时,二者"双掺"的减水率急剧增加,与原状低等级粉煤灰相比,磨细粉煤灰的减水作用增加明显。