The results show that after the metakaolin powder was added, the new concrete strength at 7 and 28 days increased a lot, and the performance of Cl(superscript -) penetration resistance, alkali-aggregate reaction restrain and freeze-thaw circle resistance were also better than the blank sample; and the fluidity of the new concrete was higher than that of the silica fume incorporated concrete, though a little lower than the blank sample concrete.
结果表明：砼中掺加偏高岭土微细粉后，7d，28d强度有较大提高；其抗Cl渗透性、抑制碱－骨料反应及抗冻融循环等性能也均优于基准砼；砼流动性优于同掺量硅灰试件，但较基准试件略有下降。
Test data of the fume hood lining for chemical resistance shall be submitted.
通风柜的内衬抗化学腐蚀的数据会提供给用户。
In this article, the electric resistance furnace is used to heat the carbon cathode, anode and ramming paste samples of aluminum reduction cell, the temperature regulator used to regulate heating-up of the electric resistance furnace and high temperature mixed fume is inlet into melting chamber as oxidizing atmosphere.
本文利用电阻炉来加热铝电解槽的碳阴极、阳极以及扎固糊试样，使用温度控制器来控制电阻炉的升温，用高温烟气通入炉膛内作为氧化气氛。
The research results indicated that the performance of concrete, particularly the performance of resistance to chloride ingression, has been greatly improved by adding various reactive mineral materials, such as ground granulated blast furnace slag, fly ash and silica fume.
结果表明，矿物掺合料的掺入可以极大地改善混凝土的性能，特别是抗氯离子侵蚀性能，从而提高混凝土结构的使用寿命。
Combined with the state of current market, a few new technologies of aluminium and its alloy surface treatment are simply introduced, which include nitro-fume free chemical polishing, unlimited temperature swift anodic oxidization, rough surface treatment, colouring anodized coating, base resistance high reflectivity sealing.
结合当前市场情况，介绍了铝和铝合金表面处理行业的新工艺，它包括无黄烟抛光工艺、宽温快速阳极氧化工艺、砂面处理工艺、彩色着色与染色工艺、耐碱增光封闭工艺。
Freeze thaw resistance and air-void characteristics of high strength concrete with silica fume Studies on advanced characters silic power concrete
高强硅粉混凝土抗冻性及气泡结构的试验研究高性能硅粉混凝土的探讨
This study focuses on the influence of the silica fume on sewage corrosion resistance of mortar from concrete of sewage project.
研究了硅粉对提高污水工程用混凝土中砂浆耐污水腐蚀性能的影响。
The thermal shock resistance of the refractory casting with low cement content is improved greatly because of the addition of micropowder SiC together with Silica fume and high-efficiency water-reducing admixture, but the compressive strength after calcine at 1450 ℃ is decreased.
在采用硅灰和高效减水剂的低水泥浇注料中掺加SiC微粉后，显著改善了浇注料的抗热震性，但降低了1450℃烧后抗压强度。
Taking brittleness coefficient and characteristic length as indexes for evaluation of crack resistance of HSC, the effect of mineral admixtures including fly ash, silica fume and ground slag on crack resistance of HSC is studied.
以脆性系数和特征长度为高强混凝土抗裂性评价指标，研究矿物掺合料（粉煤灰、硅粉和磨细矿渣）对高强混凝土抗裂性的影响。
Influence of Silica Fume and Water Reducer on Resistance to Sulfate Attack of Cement
硅灰和减水剂对水泥耐硫酸盐腐蚀的影响
It is found that the concrete containing 10% silica fume additive and with cement content more than 400kg/m 3 has high strength and dense texture, and high resistance to chemical etching of sulphate and mechanical damage of chloride salt crystal.
通过浸烘循环快速试验发现：含10%微硅粉外加剂、水泥用量大于400kg/m3的高强度、高致密度混凝土，具有很高抗强硫酸盐化学侵蚀和氯盐结晶物理侵蚀的能力。
Frost resistance and chloride ion diffusion of silica-fume concrete in a marine environment
海洋环境下硅灰混凝土的抗冻性与氯离子扩散性
The flexural strength of concrete by enveloping silica fume and admixing admixture on aggregate can be increased by 10%, brittleness coefficient can be decreased by 35% and abrasion resistance can be enhanced above 15%.
抗折强度比双掺硅灰、粉煤灰的高强混凝土提高10%左右，脆度系数降低35%，耐磨性提高15%以上。
It is found that the concrete containing 10 % silica fume additive and with cement content more than 400kg / m 3 has high strength and dense texture, and high resistance to chemical etching of sulphate and mechanical damage of chloride salt crystal.
通过浸烘循环快速试验发现：含10%微硅粉外加剂、水泥用量大于400kg/m3的高强度、高致密度混凝土，具有很高抗强硫酸盐化学侵蚀和氯盐结晶物理侵蚀的能力。
The effect of fly ash and silicon fume on the sulfate resistance and inner pore distribution of lightweight aggregate concrete is investigated.
研究粉煤灰和硅灰对轻集料混凝土的抗硫酸盐侵蚀性能及内部孔结构的影响。
As a reactive powder, mixing silica fume into concrete can effectively improve the compressive strength, bending strength, wearing resistance and impermeability of concrete.
硅灰作为一种活性粉末，掺入混凝土中能有效地提高混凝土的抗压强度、弯拉强度、耐磨性和抗渗性等，因而被大量应用于高强、高性能混凝土的研制中。