1) stamped concrete
模压混凝土
2) RCC
碾压混凝土
1.
Mechanism and model of sulfate attack on RCC with expansive 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.
Design of RCC Arch Dam for Xiaqiao Hydropower Station;
下桥水电站碾压混凝土拱坝设计
3.
RCC dam seepage field of finite element analysis;
碾压混凝土重力坝体渗流场有限元分析
3) roller compacted concrete
碾压混凝土
1.
Experimental research on soundness of roller compacted concrete mixed with MgO;
碾压混凝土外掺MgO安定性试验研究
2.
Construction techniques for roller compacted concrete dam In left bank of Longtan Hydropower Station;
龙滩大坝左岸坝段碾压混凝土施工技术
3.
Study on relationship between permeability coefficient and impermeability mark of roller compacted concrete;
碾压混凝土渗透系数与抗渗标号关系研究
4) compressive concrete
压区混凝土
1.
The assessment model of the bearing capacity of the little eccentric compressive concrete members is established,considering the effect of the bearing capacity affected by the biaxial stress condition in the stage of pre-cracking,the shear-tensile stress condition in the stage of cracking and the failure of the cove.
根据压区纵向钢筋锈蚀导致混凝土胀裂的过程,将小偏心受压构件承载力退化分为混凝土未开裂阶段、开裂阶段和保护层剥落3个阶段;通过分析压区混凝土锈胀开裂前的双向应力状态,开裂后的剪、拉应力状态以及保护层剥落后的失效对小偏心受压柱承载力的影响,建立了相应阶段的构件承载力评估模型;给出混凝土锈胀开裂前的模型参数值并进行承载力计算,结果表明:混凝土锈胀开裂前小偏心受压柱的承载力退化可以忽略不计。
5) roller compacted concrete(RCC)
碾压混凝土
1.
Compressive strength(R_c)、splitting tensile strength(R_(pl))、axis tensile strength(R_l) and body shear strength of roller compacted concrete(RCC) are investigated.
本文对碾压混凝土的抗压强度、抗拉强度及本体抗剪强度这三个最重要的力学性能进行深入研究,目的是为现有的理论提供可靠的依据。
2.
The permeability and leakage dissolution properties of roller compacted concrete(RCC) in different hydraulic slope are obtained by tests.
通过试验获得了碾压混凝土在不同水力梯度下的渗透特性及溶蚀特性 ,结合孔结构测试结果 ,研究了影响碾压混凝土渗透溶蚀特性的因素 ,为解决碾压混凝土在高水力梯度下是否会造成渗透溶蚀破坏提供依据 。
3.
A portion of inferior roller compacted concrete(RCC) and cracks in Shuidong gravity dam caused serious leakage and calcium precipitation,and threatened the safe operation of the dam;the reinforcement for the dam and implemented result are described.
水东坝因部分碾压混凝土质量较差,产生裂缝,导致坝体严重渗漏和析钙,影响其安全运行。
6) concrete grouting
混凝土压浆
补充资料:粉末冶金模压模工作零件的材料及技术要求
零件名称:
凹模芯棒
选用材料:
碳素工具钢:T10A,T12A
合金工具钢:GCr15,Cr12,Cr12Mo,Cr12W,Cr12MoV,9CrSi,CrWMn,CrW5
高速钢:W18Cr4V,W9Cr4V,W12Cr4V4Mo
硬质合金:钢结硬质合金,YG15,YG8(芯棒用硬质合金时,一般为钢与硬合金的焊接镶接形式)
热处理要求:
钢:60~63HRC
钢结硬质合金:64~72HRC
硬质合金:88~90HRA(钢的细长芯棒可降至55~58HRC,带接杆芯棒连接处局部35~40HRC)
其它技术要求:
1. 平磨后退磁
2. 粗糙度要求:
工作面:Rα 0.4~0.1μm
配合面及定位面:
Rα 1.6~0.4μm
非配合面:
Rα 3.2~1.6μm
3. 工作面及配合面公差等级:
IT5~IT7
零件名称:
模冲
选用材料:
碳素工具钢:T8A,T10A
合金工具钢:GCr15,Cr12,Cr12Mo,9CrSi,CrWMn,CrW5
热处理要求:
56~60HRC
其它技术要求:
1. 平磨后退磁
2. 粗糙度要求:
工作面:Rα 0.8~0.4μm
配合面及定位面:
Rα 0.4~0.1μm
非配合面:
Rα 3.2~0.8μm
3. 工作面及配合面公差等级:
IT5~IT7
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条