Development of concrete aggregate production technology in water and hydropower project construction in China;
我国水利水电工程混凝土骨料生产技术的发展
Regarding the reclamation of dam and the plan of material source for concrete aggregate as emphases, this article discusses the balance and utilizing of excavate material in whole project, in the premise of guaranting construction quality and construction safety, it fully considers construction schedule and construction method, and the excavate material is fully utiliz.
为此,以坝体填筑和混凝土骨料料源规划为重点对全工程的开挖料料物平衡与利用进行了研究,在保证工程质量和安全的前提下,全面考虑施工进度、施工方法,充分利用工程开挖料作为混凝土骨料和坝体填筑料,以达到优化工程布置降低工程造价的目标。
This thesis has put main focus on how to apply excavated spoil to make concrete aggregate to meet the need for spoil disposing technologies.
本论文主要研究如何利用建筑物开挖石渣制备混凝土骨料。
According to the research on whole curves of strain-stress of concrete materials,this paper finds there was an evident features of stages,and the discrete feature of curve is often in strain-softening stage.
根据混凝土材料的应力-应变试验研究,得出试验曲线呈明显的分段特征,曲线的离散性发生于应变软化阶段。
Scale effects of strength on concrete material;
混凝土材料强度的尺度效应律
Feature extraction of concrete material's AEmeasuring based on high-order spectrum
基于高阶谱的混凝土材料断裂声发射特征提取
Various materials,such as reinforced concrete materials,polymer(rubbers,plastics and paints),lubrication or adhesive material,materials for rail,wheel,bearing,brake,contact strip and so on,and new materials such as super conductive materials,are being used or re- searched for future use in railway systems.
混凝土材料、高分子材料(橡胶、塑料和涂料)、润滑剂或粘接材料、轨道、车轮、轴承、制动器和接触导线等用材料,以及超导材料之类的新材料等,正在铁道系统中得到应用或者为将来的应用进行着研究。
A study on thickness detecting of concrete material by the ultrasonic method;
混凝土材料结构超声检测
Constitutive properties of concrete under dynamic loading play an important role in the analysis of concrete structures subject to impact loading.
利用改装的杆径为 74mm的直锥变截面式大尺寸Hopkinson压杆对混凝土材料进行冲击压缩实验 ,系统研究了混凝土的应变率硬化效应 ,采用一种新的方法———“损伤冻结”法对混凝土材料在冲击载荷下的损伤软化效应进行了系统研究 ,给出了冲击载荷下混凝土的损伤演化方程 ;在对数据进行合理分析的基础上 ,结合粘弹性本构理论 ,得到混凝土材料的损伤型线性粘弹性本构关
Some nonlinear mechanics models of concrete materials will be discussed by using uniaxial stress assumptions.
本文采用作者研究各向异性材料裂纹尖端塑性区特性的分析方法，研究了混凝土材料裂纹尖端损伤带尺寸特性·基于单轴应力假定，考虑了混凝土材料的非线性软化特性等影响，提出用两种分析模型：即能量模型和断裂模型来分别讨论·最后，还对这些模型作了比
Investigation of Recycled Concrete Aggregate in Asphalt Mixture
再生混凝土骨料在沥青混合料中的应用研究
Linear Optimization of Concrete Aggregates Production System in Construction of Dams
大坝混凝土骨料生产系统的线性优化
Technical specification of lightweight aggregate
轻骨料混凝土技术规程
like grained concrete
单一粒经骨料混凝土
coarse-to-fine aggregate ratio
(混凝土的) 粗细骨料
very light aggregate concrete
特殊轻质骨料混凝土
limestone coarse aggregate concrete
石灰石粗骨料混凝土
prepaked aggregate concrete
预填骨料灌浆混凝土
Key words： reinforced concrete、 concrete、 high performance concrete、 cement concrete、 pozzolanic effect、 mass concrete.
关键词：钢筋混凝土、混凝土、性能混凝土、高强混凝土、泥混凝土、生骨料混凝土、体积混凝土。
EFFECT OF CERAMISITE ON HOMOGENEITY OF MIXED AGGREGTE CONCRETE
陶粒对混合骨料混凝土匀质性的影响
Specification for design of lightweight aggregate concrete structures
轻骨料混凝土结构设计规程
Research on the Basic Properties of Recycled Aggregate and Recycled Concrete;
再生骨料及再生混凝土基本性能研究
Study on the Mechanicial Properties of Recycled Aggregtes High Strengh Concrete;
再生粗骨料高强混凝土力学性能研究
Studies on Random Aggregate Model and Damage Model of Dam Concrete;
大坝混凝土随机骨料及损伤模型研究
Research on Plastic Shrinkage and Durability of Lightweight Aggregate Concrete;
轻骨料混凝土塑性收缩及耐久性研究
Analyses of the Basic Behavior of Recycled Aggregate and Recycled Concrete
再生骨料混凝土基本性能分析与研究
Factors in natural frequency of lightweight aggregate concrete beam
影响轻骨料混凝土梁自振频率的因素
Study on Freeze-thaw Damage Model of Fiber Reinforced Lightweight Aggregate Concrete
纤维轻骨料混凝土冻融损伤模型研究