水化反应
- 名hydration reaction
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SEM试验发现铜尾矿中所含少量的石英晶体部分参与水化反应但程度不高。
SEM experiments discover that small amount of quartz crystal contained in copper tailing participated in hydration reaction , but the degree is insufficient .
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水泥基材料的水化反应存在两种不同的历程:NG–I–D或NG–D。
There are two different approaches for the hydration reaction of cementitious materials : NG – I – D and NG – D.
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XRD法研究水泥水化反应速度
XRD Study of Hydration Rate of Cement
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粉煤灰、硅灰及纳米硅与C3S水化反应产物的显微结构研究
Hydration reaction between c_3s and fly ash , silica fume , nano-sio_2 and microstructure of hydrated pastes
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产品中所采用的油相材料包覆技术和添加活性物质H,使该破碎剂的水化反应十分平稳。
The wrapping technology for oil phase materials and the addition of active material H stabilize hydrate reaction of the cracking agent .
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差示扫描量热分析表明,RPC的水化反应速度很快,主要的水化过程集中在较短时间内;
The DSC showed the reaction rate of RPC was very fast and main hydration process focused in shorter time ;
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以Ca(OH)2作为胶结充填砂浆中粉煤灰火山灰反应和水泥熟料水化反应的桥梁建立的水化反应动力学模型,基本上与浆体实际水化反应过程相符;
Using Ca ( OH ) 2 as the bridge the fly ash and cement reaction in filling slurry to build the model of hydration reaction kinetics matchs case the true reaction .
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添加剂Al(OH)3和CaCl2既参与水泥土水化反应,又可改变其水化速度和空间结构。
On the contrary , Al ( OH ) _3 and CaCl_2 not only participate the reactions , but also influence the speed of the hydration and the spatial structure of the hydration products .
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因固化剂B是作为加快水泥水化反应速度的催化剂而加入的,所以,固化剂B的加量以控制在5%以下为好。
The best amount of solidified agent ( SA ) A is 3 % , the amount of SA B should be controlled under 5 % because SA B is added into CHG as a catalyst increasing action rate of cement hydration .
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CSH的生长速度是加速期水化反应速度控制的主要因素。
The growth rate of CSH is the main factor that controls the hydration rate of ( acceleratory ) period .
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其主要原因是由于MPC成分的水化反应本身是一个放热反应,有利于加快胶泥内部水分蒸发。
The main reason is due to components of hydration MPC itself is an exothermic reaction , and is conducive to speeding up the internal clay evaporation .
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研究了合成MgOCaO砂的水化反应过程,建立了水化反应物理模型,推导出水化反应动力学公式。
The hydrous reaction process of the synthetic MgO CaO clinker is studied . The physical model of the hydrous reaction is set up and the equation of hydrous reaction kinetics is deduced .
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为了研究无熟料高炉矿渣水泥(简称NCSC)的水化反应特征,设计不同配合比的NCSC,并进行了XRD、DTA、SEM试验。
To study the characteristics of hydrated reaction of non-clinker slag cement ( NCSC ), the NCSC with different mix ratios was investigated and characterized by XRD , DTA and SEM .
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表明负温条件下,温度的改变只对水化反应速率影响显著,而对其机理影响不大,且发现在负温对C3S水化反应的作用过程中,-10℃为一转折点。
It is shown that the hydration reaction rate is influenced by temperature significantly , while the hydration reaction mechanism changes only a little . It is also found that there is a turning point at-10 ℃ when C_3S hydrates at different negative temperatures .
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通过膨胀性能试验、X-rag衍射分析、扫描电镜(SEM)分析及差热(DTA)分析,研究膨胀剂与水泥发生的水化反应。
By expansion performance experiment on the expansion agent , X-ray photoelectron spectroscopic analysis , SEM analysis and DTA analysis , the hydrate reaction between the expansion agent and cement is researched .
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矿渣的CaO含量相对很高,它能加速二次水化反应的进行,所以矿渣的掺入在一定程度上提高了混凝土的早期强度。
CaO content of the slag is higher by comparison , it can speed up the second hydration reaction , so the concrete early strength can be improved with the incorporation of the slag for a certain extent . 4 .
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水化反应中硼被吸入,并优先吸入11B,导致蚀变岩中δ11B升高。
B ( especially 11 B ) is absorbed in the process of water absorption reaction , contributing to rise of δ 11 B value in the alteration rock .
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与水泥胶砂相比,碱激发偏高岭土和碱激发粉煤灰胶砂的水化反应发展迅速,在试块成型7d内强度发展已基本完成。
Compared with cement sand , alkali-activated cementing materials and alkali-activated fly ash cementing materials the rapid development of the hydration reaction in the test block in forming 7d strength development has been basically completed .
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加入适量粉煤灰-矿渣基激发胶凝材料,提高水化反应速度并生成更多的托贝莫来石和CSH(I)等水化产物,进而提高砖的力学强度。
The addition of alkali-activated slag / fly ash cementing material can increase the hydration reaction to produce more tobermorite and CSH ( I ) so as to improve the mechanical strength of the brick .
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HBC在1~7d内的水化反应速度较慢,但7d后的增进速度较快,6个月水化程度明显高于PC。
The hydration rate of HBC during the period of 1 & 7 days is relatively low , but will accelerate later after . The hydration degree of the cement hydrated for 6 months is remarkably higher than that of PC.
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对XAN-RC的抗高温机理进行了研究,表明XAN-RC能够在高温的作用下发生二次水化反应,生成纤维状晶体的水化产物,从而形成牢固的网状结构,增强了界面胶结强度。
The mechanism of the high-temperature resistance of the plugging agent is researched , and it is held that , XAN-RC takes place secondary hydration and produces fibrous crystalline product at high temperature , this product has strong netted texture , and therefore , its interfacial cementation strength is improved .
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混凝土骨料水化反应引起的构件胀裂及其加固方法研究
Study on strengthening methods for concrete members due to expansion cracks
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掺矿渣水泥水化反应特性的试验研究
Experimental Research on Hydration Reaction Characteristics of Cement Paste with Slag
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粉体表面改性控制氧化钙的水化反应的研究
Research on Controlling Hydration Reaction of Lime by Surface-modification of Powder
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混凝土中水泥水化反应放热模型及其应用
Model for hydration heat of cement in concrete and its application
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高性能水泥-煤矸石体系水化反应程度的测定
Measurement of degree of hydraulicity in high performance cement-coal gangue system
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磷渣硅酸盐水泥水化反应机理研究
Research on hydrated reaction mechanism of phosphorus slag Portland cement
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确定了磷酸盐水泥水化反应的机理。
The mechanism for phosphate cement hydraulic reaction is determined .
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磷酸钙骨水泥的水化反应、凝结时间及抗压强度
Hydration reaction , setting time and compressive strength of calcium phosphate cement
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水化反应结束后,掺量大的温度曲线最接近外界气温,降温速率也明显增加。
The temperature curve with large mixed volume is nearby the surrounding temperature .