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- pozzolanic aetivatiy 火山灰活性
- CSH gel with low water content forms in the pozzolanic reaction of fly ash. 粉煤灰的火山灰反应生成的也是含水率较低的CSH凝胶。
- High hydration temperature advances the pozzolanic reaction of fly ash. 高温水化条件下粉煤灰的火山灰反应提前发生。
- The result shows that (1) Furnace slag is a kind oi artificial pozzolanic admixture. 结果表明:(1)炉渣属火山灰质活性混合材料;
- Test variables include the sand over aggregate (S/A) and the pozzolanic material replacement. 试验变数包含不同粗细骨材成分比与不同卜作岚材料替代量。
- The impact on the pozzolanic effect by the fineness of superfine slag powder is changed with content. 掺量不同,火山灰效应受矿渣微粉细度的影响也不同。
- There are inorganic materials that also have pozzolanic or latent hydraulic properties. 没有准备好便盲目推动项目管理,以致引起管理文化的变动,其后果便是混乱。
- 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。
- Using tests of compressive strength, hydration product and porosity, the influen ce of steam curing on the pozzolanic reaction of rejected fly ash were studied. 通过研究蒸汽养护条件下含废弃粉煤灰的样品在抗压强度、水化产物以及孔隙率等方面的变化,探讨了蒸汽养护对废弃粉煤灰火山灰活性的影响。
- It is suggested that both the pozzolanic reaction of fly ash and the hydration of cement clinker must be promoted at the same time to improve the property of fly ash cement. 提出为了改善粉煤灰水泥的性质,必须同时促进粉煤灰的火山灰反应和水泥熟料的水化反应。
- The causes are the shapes and properties of ettringites, the hydrated prodrcts, to be affected by pozzolanic effect of fly ash. 但却使补偿收缩混凝土的膨胀量降低 ,原因是粉煤灰的火山灰效应会对水化产物钙矾石的形貌和性能产生影响
- The products and their formation laws of pozzolanic reaction is the focus of research in the field of lime-stabilized soil. 火山灰作用生成物的生成规律研究一直是该领域国内外众学者研究的焦点。
- In this paper,excitation effects of alkali,gypsum,lime and temperature on the pozzolanic activity of fly ash were researched. 研究了碱、石膏、石灰和温度对粉煤灰火山灰活性的激发作用。
- This paper is to study the effect of the workability of high performance concrete with aggregate and pozzolanic materials. 摘要本研究计画主要探讨骨材与卜作岚材料对高性能凝土性质的影响。
- The results show that the pozzolanic activity of thermal activated coal gangue in the north of China is stronger than that in the south. 结果表明:我国北方热激发煤矸石的活性普遍高于南方热激发煤矸石;
- In fact. it was found that the pozzolanic reaction of SF and calcium hydroxide only slightly affects the RH [6. 16. 47. 53.54]. SF和氢氧化钙的火山灰(凝硬)反应仅对RH稍有影响[6.;16
- The heat stimulation can greatly enhance the pozzolanic reaction of fly ash, but suppress the long-age hydration of Portland cement. 热激发作用可显著促进粉煤灰的火山灰反应,但对于硅酸盐水泥的长期水化反应有抑制作用。
- Kinetics model of pozzolanic reaction for preparation of flue gas desulfurizer was deduced on basis of solid phase reaction dynamic theory. 以固相反应动力学理论为基础,推导了粉煤灰与氢氧化钙的火山灰反应动力学表达式,得到了动力学参数,并予以验证。
- Key words: reinforced concrete、 concrete、 high performance concrete、 cement concrete、 pozzolanic effect、 mass concrete. 关键词:钢筋混凝土、混凝土、性能混凝土、高强混凝土、泥混凝土、生骨料混凝土、体积混凝土。
- This study is mainly to verify the strategy of restraining the neutralization by adding appropriate pozzolanic admixtures to concrete. 本研究以掺加适量卜作岚掺料的高性能混凝土,验证抑制中性化之策略。