The incorporation of silica fume increases the self shrinkage of HPC.
掺入硅灰将增大高性能混凝土的自收缩。
Condensed silica fume is to be added to reduce the permeability of the concrete.
应掺加冷凝硅灰减小混凝土的渗透性。
Silica fume is considered as an ideal modelling material for reactive pozzolans used in concrete.
硅灰是用以研究混凝土用的活性火山灰质材料的理想模型材料。
Mixed with silica fume and silica fume to minus the volume of the same volume of sand and gravel.
掺硅粉和硅粉负的体积相同数量的沙石。
The optimum content of silica fume is 0.25, and the lowest water to cementitious materials ratio is 0.18.
此时硅灰的最佳掺量为水泥质量的0.25倍，且水胶比并不是越低越好，最佳水胶比为0.18。
The results indicate that silica fume can improve the retention capabilities of portland cement for uranium.
比较不同硅灰掺量时硅酸盐水泥固化体对铀的滞留能力。
Combining the SEM tests, the microstructure features of the cemented soil of nanometer silica fume are concluded.
结合SEM试验，探讨了纳米硅粉水泥土的微结构特点。
It points out the mechanism of silica fume in concrete and essentials of applied technique of silica fume concrete.
指出了硅粉在混凝土中的作用机理以及硅粉混凝土的应用技术要点。
Based on this, the influence of water to cement ratio, fly ash and silica fume on porosity of concrete are studied.
本文采用该方法研究了水灰比、粉煤灰、硅灰等对混凝土孔隙率的影响。
Based on the experiments, strength characteristics of nanometer silica fume reinforced cemented soil have been analyzed.
通过室内试验，探讨了纳米硅粉水泥土的强度特性。
For concrete containing silica fume or ground slag, the reduction of auto-shrinkage is more effective by composite aggregate.
尤其对于含硅灰或矿粉的混凝土，复合骨料降低混凝土的自收缩效果更好。
This paper adopts ultra-fine fly ash and silica fume concrete materials to prepare high performance composite technology(HPC).
本文采用超细粉煤灰与硅灰的复合技术配制高性能混凝土材料（HPC）。
Current research and application for mineral admixtures are more about fly ash, slag and silica fume, and less about metakaolin.
目前研究和应用较多的矿物掺合料是矿渣、粉煤灰和硅灰，而对偏高岭土的应用研究较少。
In addition, the admixture of glue and water content than the size of silica fume concrete strength of the impact is very obvious.
此外，外加剂的掺量和水胶比的大小对硅灰混凝土强度的影响也很明显。
Addition of silica fume into the mix will result in increasing the workability and strength of cement mortar and decreasing the expansion.
同时掺加硅灰还能够提高掺玻璃纤维高钙粉煤灰水泥砂浆的和易性和强度，并减小其膨胀。
And concrete prepared with Metakoalin will be just as good as concrete prepared with silica fume in terms of resistance to sulphate attack.
偏高岭石混凝土的抗硫酸盐侵蚀能力不低于掺硅灰的混凝土。
The effect of the content of silica fume on the structure and property of the cement mortar and property of the cement paste were investigated.
探讨不同掺量的硅灰对水泥净浆与砂浆性能及砂浆结构的影响。
Results shown that the addition of silica fume could increase the autogenous shrinkage a little and almost had no effect on the drying shrinkage.
结果表明：掺入硅灰会略微增加混凝土早期自生收缩，而对早期干燥收缩影响不大；
The results showed that adding slag powder, fly ash, silica fume to Portland cement can improve the comprehensive performance of marine concrete.
研究结果表明，在硅酸盐水泥中掺加矿粉、粉煤灰、硅灰等混合材料可以改善海工混凝土的综合性能。
The results suggest that nanometer silica fume can greatly improve the unconfined compression strength of cemented soil at various curing periods.
试验表明，一定掺量下的纳米硅粉能够显著提高水泥土的各个龄期强度。
Densitied silica fume is a kind of excellent multi-function replenishment, especially for concrete. It is easy to transport, and convenient to use.
增密硅灰是一种便于运输、便于使用能更好地应用于混凝土的高效多功能添加剂。
Concrete mingled with fly ash, slag and silica fume and other admixtures are thought to effectively improve the anti-sulfate durability of concrete.
在混凝土中掺入粉煤灰、矿渣和硅灰等掺合料被认为能有效提高混凝土抗硫酸盐耐久性。
Improvement of the structure of interface by adding silica fume and relationship between structure and properties of interface based on the improvement.
采用在水泥浆体中掺加硅灰作为改善界面结构的主要手段，通过界面结构的改善说明界面结构与界面性能和混凝上性能的关系。
This paper studys the influence of the mineral admixtures such as ultra-fine fly ash, ultra-fine slag and silica fume on compressive strength of lytag concrete.
利用磨细粉煤灰、磨细矿渣和硅灰作为矿物掺合料，研究了各种矿物掺合料对粉煤灰陶粒混凝土抗压强度的影响。
The curing condition, the maximum size of coarse aggregate and silica fume have certain effects on the strength, fracture properties and brittleness of concrete.
养护条件，粗骨料最大粒径和硅灰对混凝土的强度，断裂性能和材料脆性都有一定影响。
By the experiments, the effects of several mineral admixtures, such as silica fume, superfine slag and siliceous shale on the High Strength Concrete (HSC) is researched.
通过实验，研究了硅灰、超细矿渣、硅质页岩几种矿物质掺合料对高强混凝土强度的影响；
The mechanical strength of the mortar was enhanced by employing silica fume, sepiolite fiber and silt ceramisite, so that it could be used in roof insulation engineering.
研究了硅灰、海泡石纤维、淤泥陶粒等对保温砂浆力学性能的影响，以提高保温砂浆的抗压强度，使之可用于屋面保温工程；
This article analyze the basic function of silica fume cement, foundation unsettlement be deal with silica fume cement grout, and engineering practical problems be solved.
介绍了微硅粉(纳米硅)浆材的基本性能，应用微硅粉浆材处理基础的不均匀沉降等地质灾害，解决了工程实际问题。
The company mainly produces ferrosilicon, silicon particle, silica fume, nodulizer, inoculant, deoxidizer, silicon carbide, carbon agent, key enterprises and other products.
公司主要生产硅铁，硅粒，硅粉，球化剂，孕育剂，脱氧剂，碳化硅，增碳剂，等产品的重点企业。
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%。
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