MgO膨胀剂,MgO expansive agent
1)MgO expansive agentMgO膨胀剂
1.The concrete soundness experiment made on the roller compacted concrete mixed withMgO expansive agent under the normal pressure,90 ℃ and the moisture-insulation curing condition is described herein.本试验对掺MgO膨胀剂的碾压混凝土在常压90℃,绝湿养护条件下进行了混凝土安定性试验。
2.The C50 mangnesium oxide microexpanded concrete-filled steel tube was prepared using a self-madeMgO expansive agent.采用自制的MgO膨胀剂制备出C50微膨胀钢管混凝土,研究了MgO膨胀剂对混凝土的抗压强度、热学性质、耐久性能、自生体积变形和徐变性能的影响。
英文短句/例句
1.Review on the Expansion Mechanism of Cement Paste Mixed with MgO-type Expansion Agent掺MgO膨胀剂水泥浆体膨胀机理研究述评
2.Influences of MgO-based Expansive Agent on the Deformation Behavior of Cement Pastes轻烧MgO膨胀剂对水泥浆体变形行为的影响
3.Regression analysis on early deformation of cement paste containing MgO expansive agent掺MgO膨胀剂水泥浆体早期变形的拟合与分析
4.Effect of compound MgO expansive material新型复合MgO膨胀材料的膨胀效果
5.Expansive effect of concrete with MgO as embedded component in cement or as expanding agent in mass concrete外掺MgO与水泥内含MgO在大体积混凝土中的膨胀效应
6.ion exchange bed expansion离子交换剂床层膨胀率
7.alunite expansion agent for concrete明矾石混凝土膨胀剂
8.Research on Expansive Performance of Expansive Agent in Steel Tube Concrete;膨胀剂在钢管混凝土中的膨胀作用研究
9.Research of Double Expansive Sources Admixture for Hydraulic Mass Concrete;水工大体积混凝土双膨胀源膨胀剂的研究
10.Research on expansion characteristics of ettringite and lime composite expansive agent钙矾石-石灰复合型膨胀剂膨胀特性的研究
11.Influence Factor of expansion rate of cementitious material added by expansion admixture掺膨胀剂水泥基胶凝材料膨胀率的影响因素
12.Study on Thermal Stress Analysis of Mixed Gentle MgO Swelling Concrete Structure and Its Effective Stress Method;掺MgO微膨胀混凝土结构的温度应力及其有效应力法研究
13.The Performance of Novel MgO-Expansive Agent for Longtan Rrc Dam;龙滩水电站碾压混凝土用特种MgO膨胀材料的性能
14.Influence of pressure-braise system on the pressure-braise expansion ratio of concrete and cement mortar mixed with MgO压蒸条件对外掺MgO水泥砂浆和混凝土压蒸膨胀率的影响
15.The Adhesive Preparation for External Thermal Insulation Systerms Based on EPS;外墙外保温膨胀聚苯板胶粘剂的合成
16.Research of Expansive Admixture s Effectiveness in High Performance Concrete;高性能混凝土膨胀剂效用的试验研究
17.Actuality and Developing Direction of Expansive Agents Industry for Concrete混凝土膨胀剂行业的现状和发展方向
18.Effect of Overdose SO_4~(2-) of Expansive Agent on Concrete Property膨胀剂中过量SO_4~(2-)对混凝土性能影响
相关短句/例句
MgO expansive concreteMgO膨胀砼
3)gentle MgO autogenous expansive concreteMgO微膨胀混凝土
4)AEA expansive agentAEA膨胀剂
1.This paper emphasized on the key techniques double mixing of organic short fiber inAEA expansive agent, best mixing quantities of organic short-fiber and expansive agent, restricted expansion rate after double mixing, compressive strength and bending strength of mortar etc.本文重点论述了在AEA膨胀剂中复掺有机短纤维控制裂缝的技术关键,有机短纤维和膨胀剂的最佳掺量,复掺后的限制膨胀率,砂浆的抗压及抗折强度等技术问题。
5)expansive agent膨胀剂
1.Mechanism and model of sulfate attack on RCC withexpansive agent;含膨胀剂的碾压混凝土抗硫酸盐侵蚀机理与理论模型
2.Investigation on environmentally friendly PFA basedexpansive agent;环境友好型PFA膨胀剂
3.Some considerations on development ofexpansive agent and expansive concrete in china;我国膨胀剂和膨胀混凝土的发展与问题思考
6)expanding agent膨胀剂
1.Shrinkage of semi-lightweight concrete withexpanding agent;膨胀剂对次轻混凝土收缩的影响
2.Setting compound phosphate retarder and reduced typeexpanding agent for building gypsum;建筑石膏的复合磷酸盐缓凝剂及缓凝型膨胀剂
3.To systematically study the effects of mineral admixtures such as slag,expanding agent on sulfate resistance of concrete, a series of concrete immersion test was carried out.通过混凝土的抗硫酸盐浸泡试验,系统研究了矿渣、膨胀剂等矿物掺合料对混凝土抗硫酸盐侵蚀性能的影响。
延伸阅读
静态膨胀剂破碎岩石静态膨胀剂破碎岩石rock breakage with static expansive agent定的强度。装人炮孔中的静态膨胀剂，由于自身的膨胀作用，在孔壁的约束下，沿径向方向对炮孔壁产生较大的膨胀压力(30一soMpa)。孔壁径向受压，切向受拉，当孔径为4em，孔距为40一6oem时，软岩或混凝土产生径向破裂所需的膨胀压力为10一20MPa，中硬岩或硬岩为15一30MPa。当炮孔内的膨胀压力增加到一定值后，介质就会产生径向裂缝而破裂。静态膨胀剂破碎岩石的效果随环境温度的提高而明显地增加。但温度过高，水化速度加快，易产生喷孔现象。为了适应环境温度的变化，控制水化速度及裂缝开裂时间，要根据环境温度采用不同配方。静态膨胀剂的吸水量，以满足化学反应(26%)或便于装灌为度，过多的水分将降低其膨胀力。应用孔径38一42mm，孔距200~400mm，装药量1.9~2.3kg/m。其爆破lm“岩石所消耗的炸药量(下称炸药单耗)视岩石坚固性及工作状态而定，可参考下表:破碎对象孤石整体岩石素混凝土钢筋混凝土静态膨胀剂炸药单耗，kg/m33一75一126一8 15一20静态膨胀剂操作简便，携带和运输安全，切割和破碎岩石时可做到无飞石、无震动、无冲击波、无噪声、无粉尘、无毒气排放等危害，因此可用于城市建筑物拆除、岩石基槽开挖、大块岩石的二次破碎和石料开采等工程。静态膨胀剂破碎岩石与炸药爆破相比，其缺点是作用时间长、成本较高。研究新的添加剂，缩短反应时间，提高膨胀力，降低成本为其改进方向。J ingto一pengz陌ngjl posul yansh-静态膨胀剂破碎岩石(roek breakage withstatie expansive agent)一种以氧化钙为基本成分，反应时体积膨胀，使岩石涨裂的技术。它是20世纪80年代初研究成功的非爆炸型、无公害的破碎岩石技术。可用于不允许有震动和飞石的场所，和用来开采整体石料。作用原理静态膨胀剂以氧化钙为主要膨胀源，其含量约占81%。此外，还含有硅、铝、铁、镁的氧化物，并配以少量添加剂。在与适量水掺合后，发生水化反应，立方晶系的CaO转变成六方晶系的Ca(OH):，体积增大50.2%，同时释放出66.6kJ/mol的热量，从而具有膨胀作功的能力。有机添加剂用来延缓水化反应的速度;无机添加剂则用来控制硬结时间，并达到一
