碳化作用
- carbonization
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研究了碳化作用对灰砂砖内部孔隙、度等相关性能的影响。孔隙度误差对岩电参数的影响及校正公式和图版
The article studies the effects of carbonization on the performance of lime-sand brick including pore and strength . Influences of Porosity Error on Electrical Properties of Rock and Updating Formula as Well as Correction Charts
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海洋工程环境中使用的钢筋混凝土,受海盐以及潮湿的环境影响,较容易引起腐蚀,其中碳化作用降低混凝土的pH值,破坏碱性环境。
Reinforced concrete in marine engineering environment is impacted by the sea salt and humid environmental , and easily caused to corrosion . Carbonation reduces the pH value of concrete , and destructed the alkaline environment .
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尽管热力学分析表明这种碳化作用是可以自发进行的,但在干燥状态下YBa2Cu3O(7-δ)实际上并不与Co2发生反应。
) stored in air is resulted from carbonation , Although carbonation can occur automatically from thermodynamic analysis , in fact YBa_2Cu_2O_ ( 7 - (?) ) does not react with CO_2 in dry condition .
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比如Sodastream这种碳酸饮料机,用户可以通过二氧化碳储罐决定往水中加入多少碳化作用,此外他们还可以随心所欲地加各种调味剂。
With sodastream , for example , users decide how much carbonation to add to their water through a carbon dioxide tank .
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水化硅酸钙的碳化作用论高职学报的影响因子
CARBONATION OF HYDRATED CALCIUM SILICATES On the Value Orientation of Higher-vocational-college Journals
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混凝土渗透性与碳化作用下钢筋锈蚀量的关系
Research on the Correlation of Concrete Permeability with Steel Bar Corrosion Rate of Carbonated Concrete
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弯曲荷载、化学腐蚀和碳化作用及其复合对混凝土抗冻性的影响
Effects of flexural loads , chemical attack , carbonation and their combination on Freezing-Thawing Durability of concretes
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然而,有两种现象可以导致混凝土钢筋的严重腐蚀,就是氯化物的侵蚀和碳化作用。
However two phenomena , chloride attack and carbonation , would cause severe corrosion for steels in concrete .
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归纳认为酸性气体对混凝土腐蚀主要有三方面:碳化作用、硫酸盐的腐蚀和酸腐蚀;
It is concluded that acid gases corroding concrete involved the three respects : carbonation , sulphate corroding and acid corroding .
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硅酸钠能使软木粉粘结在模具表面,而且还有助于软木粉耐受熔融铅合金的碳化作用。
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy .
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如碳化作用及氯离子侵蚀等,加之蒸养及施工维护过程中操作不规范等各因素作用,致使许多重大桥梁工程结构寿命明显缩减。
The various factors including carbonation , chloride ion , sulfate erosion and improper operation of process of steam curing , construction and maintenance etc. significantly reduced the life of many major bridges engineering structure .
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从混凝土在酸性介质中发生腐蚀的热力学条件以及碳化作用、硫酸盐的腐蚀、酸腐蚀、H+和SO42-共同腐蚀方面阐述了酸沉降对混凝土的腐蚀机理;
The corrosion mechanism of concrete induced by acid deposition is explained by the thermodynamic condition of concrete corrosion in acid medium , carbonation , sulphate corrosion , acid corrosion plus H ~ + and SO ~ 2 - _4corroding together .
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根据预应力结构耐久性失效的特点,文中提出了碳化作用下结构耐久性极限状态的标志,并借助结构可靠度理论进行了结构耐久性可靠度分析和耐久寿命预测。
Based on the characteristics of durability failure of prestressed concrete structures , the attribute to durability limit state in the carbonation environment is put forward . And with the help of structural reliability theory , some reliability analysises and life prediction of prestressed structure are done .
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La2O3-Mo阴极表面碳化层作用机制研究
Study on function mechanism of carbonized layer at the surface of la_2o_3-mo cathode
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冻融与碳化交替作用下混凝土损伤模型
The Damage Model of Concrete under the Alternate Action of Freeze-thaw Damage and Carbonization
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由此,讨论分析了冻融和碳化组合作用时混凝土碳化过程的经时变化。
And the changing process with time of concrete under the interaction of carbonation and freeze-thaw is analyzed .
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分析了碳化的作用对钢筋混凝土材料力学性能的影响,包括混凝土强度、钢筋截面、屈服强度、伸长率等,并将此分析结果应用于四层真实结构模型的动态弹塑性分析中。
The effect of carbonation on the mechanical properties of reinforcement concrete was studied , including compressive strength , cross-section of steel , yield strength , elongation etc. and then the dynamic elastic-plastic analysis was done for the four-story building on the base of above analysis .
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预氧丝在氧化镁/炭复合材料中的原位碳化及其强化作用
In situ carbonization and reinforcing effect of carbon fiber precursor in MgO C Composite
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考虑风对混凝土碳化的加速作用对混凝土结构的等耐久性设计具有重要意义。
Thinking the influence of wind pressure is important for equal durability design of the section of concrete structure .
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结果认为:纤维素用硫酸-尿素增强处理后,生成了纤维素硫酸醋,防止了左旋葡聚糖的生成,增加了碳的得率,并起到了纤维增强、缩短碳化时间的作用。
The results show that it will prevent the formation of dehydrated - β - D-glycopyranoside , thus increasing the carbon content in the product , enhancing the tenacity of the fiber and shortening the duration of carbonization .
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它是阳光与大气中的碳化氢和氧化氮作用的结果。
It is the result of sunlight reacting with hydrocarbons and nitrogen oxides in the atmosphere .
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本文采用浸泡与碳化交替方式模拟海洋大气区,研究了碳化作用对混凝土中自由氯离子和总氯离子扩散的影响。
The influence of carbonation on diffusion of free chloride and total chloride in concrete was investigated by using alternation of immersion and carbonation method to simulate marine atmospheric region .
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实验结果表明,在铁素体区稀土可促进碳化铌的析出,而在奥氏体区有抑制碳化铌析出的作用。
The results show that additional RE accelerates the precipitation of NbC in ferrite while retards the precipitation of NbC in austenite .
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本文综述了碳化铀的粉末冶金特性,和用助烧剂与碳化铀作用生成的硬质第二相来强化碳化铀的方法。
The paper has synthetically described the P / M characteristics of uranium carbide and thestrenthening method by hard secondary phase produced by using the effectS of sintering aids and uranium carbide .
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碳化与氯盐侵蚀是导致钢筋混凝土结构服役性能劣化的重要原因,荷载作用及碳化作用对氯离子的侵蚀有显著影响。
Concrete carbonation and chloride attack is always regarded as an important cause of deteriorating in service-life performance of reinforced concrete structure ( RC ) . Loads and carbonization have a significant effect on chloride ion induced erosion .
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进行了碳化环境下预应力混凝土试件弯曲受拉和直接受压的耐久性试验研究,阐述了碳化作用对预应力混凝土结构的损伤机理。
The durability experiment of prestressed concrete specimens in the bending tensile status or in the directly compressive status in carbonation environment has been carried out .