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Keywords expansive agent;MgO;shrinkage; 膨胀剂;氧化镁;收缩;
Ettringite is one of the important hydration products of cement and it is also the main component of aluminate expansive agent. 钙矾石是水泥重要的水化产物之一,也是铝酸盐类膨胀剂产生膨胀的主要物质,但它在混凝土中并不稳定,容易发生重结晶。
The Frost -resistance of concrete with 55%fly-ash which is admixed with united expansive agent(UEA) has been improved greatly. 粉煤灰掺量为55%25的混凝土在掺加UEA膨胀剂后其抗盐冻性能有明显改善；
This paper showed the effect of applying HCSA high performance concrete expansive agent to underground garage of China Grand Theater Art Plaza. 根据我国混凝土膨胀剂使用现状,提出了正确使用膨胀剂的意见,并对常见事故原因进行了分析,提出了处理措施。
Restraining the shrinkage and crack of concrete by using of expansive agent has been an effective controlling method since the setting of shrinkage-compensating theory. 自补偿收缩理论建立以来,采用混凝土膨胀剂抑制混凝土的收缩开裂是行之有效的控制方法。
The early-age hydrates and paste structure of complex binders composed of Portland cement, mineral admixture and expansive agent were investigated with XRD and ESEM. 利用XRD和ESEM研究了由硅酸盐水泥、矿物掺和料和膨胀剂组成的复合胶凝材料的初期水化产物和浆体结构。
Keywords AEA expansive agent;concrete crack;organic short-fiber; AEA膨胀剂;混凝土裂缝;有机短纤维;
The research on concrete permeability to gasoline containing the admixtures of fly ash, superplasticizer, air-entraining agent or UEA expansive agent has been conducted in a cryogenic pressure vessel. 在低温压力容器内，分别对掺粉煤灰掺合料和高效减水剂、引气剂、UEA膨胀剂等外加剂混凝土进行低温抗渗汽油试验。
This type of expansive agent is produced by corporating specially-produced clumious clinker with anhydrite which can be achieved by firing ardealite (one of industrial wastes) and losing water in it. 本文介绍了利用工业废弃物磷石膏煅烧脱水制取硬石膏,再与特制高铝熟料配合研制混凝土高效膨胀剂。
The mechanism and model of sulfate attack on roller compacted concrete(RCC) with expansive agent have been proposed by investigating the microstructures of RCC with optical micrograph and SEM-EDS. 通过光学显微镜和电子显微镜观察分析硫酸盐对碾压混凝土的侵蚀特征,提出三种主要侵蚀的方式,并建立理论模型。
Describes how to specify keyword expansion or multiple check-out settings for specific file types. 描述如何为特定文件类型指定关键字扩展或多个签出设置。
In order to support keyword expansion and platform-dependent line-ending conversion, CVS makes a distinction between text and binary files, and treats the text files specially. 为了支持命令词扩展、赖平台的有行结束符的转换(。。我都不知道我在翻译什么:))CVS在对待二进制文件和文本文件的方式上有差别，特别是对文本文件。
Research on bauxite expansive agent 铝矾土膨胀剂的研究
This paper introduces the composition and properties of calcium aluminate type concrete expansion agent (AEA). 介绍了铝酸钙类(AEA)混凝土膨胀剂的组成及性能。
The thesis studies the influence of compounding polypropylene fiber and expansion agent to Plastic shrinkage of mortar. 摘要混凝土的塑性收缩裂缝，是其结构原生缺陷的主要来源，无论是否可见，都会影响混凝土的耐久性。
The hydration products, construction and morphology of cement grout added expansion agent were observed by SEM. 利用SEM分析了掺膨胀剂水泥的水化产物、结构和形貌。
light calined magnesia expansive agent 轻烧氧化镁膨胀剂
Keywords Expansive open-door;Laminoplasty;Cervical spondylotic myelopathy; 关键词单开门;椎管成形术;颈椎病;
This paper researched influence of curing conditions on the volume stabilization of HPC admixed with expansion agent UEA. 本文研究了养护条件对掺膨胀剂高性能混凝土体积稳定性的影响。
By routine test and base experience, with contrastive method, the appropriate mix content and the effect to concrete strength of a kind of expansion agent were studied. 摘要通过常规实验和基础实验，采用对比的方法，研究了膨胀剂的适宜掺量和对水泥砂浆强度的影响。