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cementing properties
相关语句
  胶凝性能
     ACTIVATION OF RED MUDSTONE AND THEIR CEMENTING PROPERTIES
     红泥岩的活化及其胶凝性能
短句来源
     By introducing sulphoaluminate phase in portland clinker cementing properties of clinker can also be improved, but narrow sintering temperature range must be noticed.
     在硅酸盐水泥熟料中引入适量硫铝酸盐矿物也可以有效提高水泥的胶凝性能,但是应该解决烧成温度范围偏窄的问题。
短句来源
     The red mudstone at action of cement clinker shows good cementing properties.
     活化红泥岩在水泥熟料激发条件下呈现优良的胶凝性能
短句来源
  相似匹配句对
     THIXOTROPIC CEMENTING COMPOSITIONS AND THEIR PROPERTIES
     触变水泥配方及性能研究
短句来源
     ACTIVATION OF RED MUDSTONE AND THEIR CEMENTING PROPERTIES
     红泥岩的活化及其胶凝性能
短句来源
     ON THE PROPERTIES OF STRUCTURE'V...FROM...'
     浅析“V…from…”结构的特点
短句来源
     Properties of s-algebra
     s代数的性质
短句来源
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  cementing properties
Treatments containing ash showed lower bulk densities but relatively higher soil strength values (2.5-3.5 kg cm-2) than that for the log-yard waste scrapings or the sandy soil, due to its self-cementing properties.
      
This ash developed low strength even though it would be expected to have considerable self-cementing properties.
      
Strength development resulted solely from the self-cementing properties of the ashes.
      


The hydration products and microstructure of Class G oil_well cement and YLD sealant pastes cured under the conditions of the simulated temperature and pressure at the bottom of oil_well were investigated with XRD, TG and SEM-EDS. There are abundant CSH gel and Ca(OH) 2 crystal formed inside the cement paste. The main hydration product of YLD sealant is CSH gel. However, there are seldom CSH gel and Ca(OH) 2 crystal formes at the interface between the cement paste and steel tube. The main hydrates are ettringite...

The hydration products and microstructure of Class G oil_well cement and YLD sealant pastes cured under the conditions of the simulated temperature and pressure at the bottom of oil_well were investigated with XRD, TG and SEM-EDS. There are abundant CSH gel and Ca(OH) 2 crystal formed inside the cement paste. The main hydration product of YLD sealant is CSH gel. However, there are seldom CSH gel and Ca(OH) 2 crystal formes at the interface between the cement paste and steel tube. The main hydrates are ettringite and gehlenite hydrate. The microstructure at the interface is not so dense as that in the paste, which causes serious leaching and a quick loss of cementing properties. Leaching also occurs at the interface between YLD sealant paste and the tube, but slower than in the case of the cement. A re_hydration process may take place at the interface and the newly formed CSH gel has self_healing effect to repair the damaged interface, which prolongs the life of the sealing by YLD sealant.

采用XRD ,TG和SEM -EDS等研究了在模拟油井深处温度、压力条件下养护的G级油井水泥和YLD型堵漏剂浆体的水化产物和显微结构。在高温高压动态养护条件下 ,硬化水泥浆体内部存在大量CSH凝胶和Ca(OH) 2 晶体 ,而堵漏剂浆体的主要水化产物是CSH凝胶。在钢管 -浆体界面 ,虽然水化程度更高 ,但CSH凝胶和Ca(OH) 2 晶体的量却很少 ;主要的水化产物是钙矾石和水化钙黄长石。界面处的显微结构也比浆体内部疏松。这表明在钢管 -浆体界面处存在严重的溶蚀现象 ,导致水泥浆体很快损失胶凝性 ,这可能是水泥基堵剂失效的主要原因。堵漏剂浆体的溶蚀速率小于油井水泥浆体 ,其溶蚀表面可发生再水化过程 ,新生成的CSH凝胶具有修补受损界面的“自愈”作用 ,使堵漏剂浆体与钢管的粘结作用得以维持 ,从而延长堵漏剂的有效使用期

Tricalcium silicate (C_(3)S) is the largest amount constituent and the best cementing property in portland cement clinker. Its formation temperature is higher than any other minerals of clinker. The sufficient formation of alite means the formation of clinker. Progresses in forming high cementing clinker with alite as main phase were introduced. It is an effective way to improve cement properties by increasing (C_(3)S) content in clinker.Researches for producing of cement clinker with superhigh C_(3)S content...

Tricalcium silicate (C_(3)S) is the largest amount constituent and the best cementing property in portland cement clinker. Its formation temperature is higher than any other minerals of clinker. The sufficient formation of alite means the formation of clinker. Progresses in forming high cementing clinker with alite as main phase were introduced. It is an effective way to improve cement properties by increasing (C_(3)S) content in clinker.Researches for producing of cement clinker with superhigh C_(3)S content have been made in recent years, which are the project in the National Main Basic Research Development Program. Free-CaO can be obviously decreased during clinkering by doping a small amount of component and cement clinker can be formed at nomarl temperature with 70% (in mass,the same below) of C_(3)S content. Addition of CaF_(2) and CaSO_(4), industrial waste containing phosphoric impurity, such as phosphorous slag, steel-making slag and their composites with fluorite,or 1% CuO may obviously improve the flammability of clinker, but the doping amount of P_(2)O_(5) must be limited. By introducing sulphoaluminate phase in portland clinker cementing properties of clinker can also be improved, but narrow sintering temperature range must be noticed.

总结了以硅酸三钙(C3S)为主要矿物的熟料烧成研究成果和最新研究进展。C3S是硅酸盐系统的水泥熟料中含量最高、胶凝性能最好的矿物。在熟料烧成过程中,C3S是形成温度最高的矿物,因此,C3S的充分形成实际上也就代表了熟料的烧成。提高C3S含量是提高水泥熟料胶凝性能有效途径。采用离子掺杂的方法可以降低熟料烧成过程中的游离氧化钙,使C3S质量分数(下同)在70%以上的硅酸盐水泥熟料在正常温度下烧成,如:在生料中掺加氟硫复合矿化剂,适量磷渣或钢渣等含磷杂质及其与氟离子复合,或者掺入1%CuO,可明显改善熟料的易烧性,但是磷的掺加数量应有一定限制。在硅酸盐水泥熟料中引入适量硫铝酸盐矿物也可以有效提高水泥的胶凝性能,但是应该解决烧成温度范围偏窄的问题。

The physical phase composition and thermal dessociation characteristics of the red mudstone from JiangXi were investigated by XRD, DTA method. The pozzuolana activity of the red mustone activated in different temperature has been measured. The physical and mechanical properties of cementing material using red mudstone has also been tested. The results show that the main clay mineral of red mudstone is muscovite. The optimum burning temperature of red mudstone is 900℃.The red mudstone at action of cement clinker...

The physical phase composition and thermal dessociation characteristics of the red mudstone from JiangXi were investigated by XRD, DTA method. The pozzuolana activity of the red mustone activated in different temperature has been measured. The physical and mechanical properties of cementing material using red mudstone has also been tested. The results show that the main clay mineral of red mudstone is muscovite. The optimum burning temperature of red mudstone is 900℃.The red mudstone at action of cement clinker shows good cementing properties.

利用XRD、DTA等手段研究了江西红泥岩的物相组成和热分解特征,测定了不同温度活化红泥岩的火山灰活性及活化红泥岩胶凝材料的物理力学性能。研究结果表明,江西红泥岩的主导粘土矿物为白云母,其适宜活化温度为900℃;活化红泥岩在水泥熟料激发条件下呈现优良的胶凝性能。

 
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