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- The effect of densified silica fume on low workability concretes under different water to binder ratio was studied. 在不同的水胶比条件下,考察了凝聚态硅灰对低工作性混凝土强度发展历程的影响。
- densified silica fume 凝聚态硅灰
- RPC200 having outstanding performance can be got when silica fume quantity is approximately 25%~35% of cement quantity. 当硅灰掺量约为水泥掺量的25%25~35%25时，可获得性能较好的RPC200。
- 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。
- Comparisons between pastes with silica fume, and control pastes (without RHA or silica fume) are presented. 比较浆体与硅粉和控制膏（无壳灰或硅粉）提出。
- Metakaolin produces concrete with strength and durability similar to concrete made with silica fume. 另一方面，鼓励广大学生考研，引导培育良好学风，为实现高质量就业打牢基础。
- Admixtures such as water-reducing admixture, silica fume and polymer latex improve properties of PPC. 减水剂、硅灰及聚合物乳液等外加剂可改善多孔透水混凝土的性能；
- The analysis indicates that micropacking silica fume works to the density and relative density of RPC, and its pozzolanic effect helps the strength of RPC. 硅灰的微填充效应有利于提高活性粉末混凝土的密度和相对密度，而火山灰效应有利于提高其强度。
- The formulation of CMC and silica fume used respectively in the amount of 0.8% and 15% by weight of cement and silica fume is proposed. 当CMC掺量为0.;8%25;硅灰掺量为15%25时;CMC和硅灰的共同作用使变动系数最小;此时碳纤维在水泥基体中分散性最好;为最佳的分散剂配比。
- The best mixture volume of silica fume and influnce factors was found in short time when the different concrete was mixed using orthogonal design. 利用正交设计,在短时间内找出硅粉在不同混凝土配合比时的最佳掺量及影响因素。
- 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。
- KGF powder is a complex mineral superfine powder made by grinding the mixs of slag, silica fume and titanium slag in certain proportion. 摘要KGF粉是以矿渣、硅灰和钛矿渣等多种材料按一定比例混磨而成的一种复合矿物超细粉。
- The flowability of cement paste is reduced and the setting time of cement is increased but the soundness is acceptable by adding silica fume to cement. 掺入硅灰会降低水泥净桨的流动性，增加水泥的凝结时间，但水泥的安定性均为合格。
- The influence of different content of polypropylene fiber and silica fume on the strength of the recycled concrete is also studied in... 研究了聚丙烯纤维和硅粉掺量对再生混凝土强度的影响,为实际工程应用,提供了理论依据。
- A kind of high strength silica fume concrete C70, which is of good cavitation resistance and abrasion resistance, is used in the Xiaolangdi flood discharge project. 小浪底泄洪工程中采用了抗空蚀、耐磨性能好的 70MPa高强度等级C70硅粉混凝土 .
- Experimental results show that, hardened AASC paste with zeolite and silica fume possesses strong adsorption ability and anti-desorption ability for Cs+and Sr2+. 结果表明,掺有沸石和硅灰的碱矿渣水泥硬化体具有较强的吸附Cs~+和Sr~(2+)能力以及抗Cs~+和Sr~(2+)脱附能力。
- 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。
- 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。
