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- silica fume fly ash concrete 硅粉粉煤灰混凝土
- In this paper, crack resistance of high strength concrete (HSC) was improved by adding mineral admixtures including ground slag (GSL), silica fume (SF) and fly ash (FA). 采用外掺矿物掺合料磨细矿渣、硅粉和粉煤灰的方法来研究它们对提高高强混凝土抗裂性能的作用,并分析了相应的作用机理。
- Mehta, P.K., and Gjorv, O.E., Properties of Cement Concrete Containing Fly Ash and Condensed Silica Fume, Cement and Concrete Research, Vol.12, 1982, pp.587-596. 詹颖雯、刘玉雯，水中构造物炉石混凝土耐磨特性与设计参数之研究，财团法人中兴工程顾问社，2004。
- In order to reduce the cost and increase the RPC strength, the substitution of mixed minerals such as ultra-pulverized fly ash for silica fume quantity can be lower than 20%. 为降低成本而又不大幅度损害活性粉末混凝土的强度，超细粉煤灰等矿物掺合料替代硅灰的量不宜超过加20%25。
- FLY ASH, SILICA FUME, AND HIGH-STRENGTH CONCRETE 粉煤灰硅灰和高强度混凝土
- The unfavorable factors of silica fume,superfine slag and superfine fly ash can not fit in with the requirements of engineering development. 硅灰、超细矿渣及超细粉煤灰的各自不利因素,使其已不能适应工程发展的需要。
- This paper concentrates on the influence of mineral admixture(such as fly ash,blast furnace slag and silica fume) on fluidity and one day early strength of cement mortar. 本文在试验的基础上研究了矿物掺合料单掺和复掺时对水泥胶砂流动性及1d早期强度的影响。
- 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。
- The mortar specimens were made with different w/c ratios,silica fume dosages and fly ash dosages,and they were cured in water for 28 days before the shrinkage measurement. 结果表明:随着相对湿度的降低,水泥砂浆的干燥收缩不断增长,但增长速率逐渐减慢。
- The results show that the cracking resistance of binder mixing with silica fume is decreased at the same W/B (water binder ratio), and that addition of fly ash can increase the cracking resi... 结果表明:早龄期时,在相同水胶比条件下,掺加硅灰使胶凝材料体系裂纹扩展阻力明显降低,在低水胶比条件下,掺加一定量的粉煤灰能够明显增加体系的裂纹扩展阻力,掺加20%25的粉煤灰能使胶凝材料具有较高的裂纹扩展阻力。
- The coopera-ting rate of decarbonized coal fly ash concrete was researched and used to fulfil the pavement repair work. 进行了脱炭粉煤灰混凝土配合比等方面的试验研究，并在路面修复工程中应用脱炭粉煤灰完成了试验路修筑工作。
- Study on Preparing Technique of Steam-cured Concrete with Fly Ash and Silica Fume 粉煤灰-硅灰双掺蒸养混凝土配制技术研究
- Abstract: The test results of fly ash concrete were introduced.The optimum content of fly ash in concrete was determined. 文摘:介绍了粉煤灰砼的试验成果及在工程应用中的最佳掺量、最佳超量系数，为粉煤灰砼在寒区堤防护坡中的应用提供了科学数据。
- Influence of Fly Ash and Silica Fume on Cracking Resistance of RCC 粉煤灰和硅粉对碾压混凝土抗裂性能的影响
- Under the complex geological condition where the backfill is on thick soft clay, the design method of combining fly ash concrete pile and lime pile is presented. 针对深厚软粘土上覆新回填土的复杂地质条件，提出了粉煤灰混凝土桩与石灰桩联合进行地基处理的设计方法。
- The carbonation performances and gas permeability of four types of concrete(ordinary concrete,fly ash concrete,air-entrained concrete and fly ash airentrained concrete) were studied in this paper. 研究了普通混凝土、粉煤灰混凝土、引气混凝土和粉煤灰引气混凝土等四类混凝土的抗碳化性能和气体渗透性能。
- Four main factors of the water and cement ratio, complex scoria, cement and water quantity, which influence the chloride permeability in fly ash concrete, were, analyzed with the proposed model. 在此基础上，能利用有限的试验数据方便地由不同的配比对所浇注混凝土渗透性进行预测，有助于准确认识混凝土耐久性随配比参数的变化规律。
- Through the research on the forepart strength mechanism of Lime-fly ash Concrete, the characters of fly ash from Zhoukou and the effect of forepart intensity of the different mix doping. 通过对二灰碎石早强机理的研究，针对周口粉煤灰的具体特点，研究不同外掺剂对二灰碎石早强的作用效果，有效地解决了二灰碎石早期强度不足的问题；
- Influences of fly ash, slag and silica fume on cement mortar fluidity and early strength 粉煤灰、矿渣及硅灰对水泥胶砂流动性及早期强度的影响
- A study on synthetic activity of mixture of fly ash, grained basic slag and silica fume 粉煤灰、粒化碱性高炉渣、硅粉的可互补性和协合研究
