A test method for restrained shrinkage of high performance concrete is introduced.
介绍了一套高性能混凝土的约束收缩试验方法。
Based on the test results of adherence of self-compacting concrete to old concrete,the restrained shrinkage of adhesion between new and old concrete is simulated by finite element program ABAQUS.
在自密实混凝土与老混凝土约束收缩试验的基础上,本文采用大型有限元软件ABAQUS进行了新老混凝土粘结的约束收缩模拟,并与试验结果进行比较,以验证有限元模型的可行性。
On this purpose, the performence of free shrinkage of mortar and restrained shrinkage of concrete were studied.
为实现这一目的,作者研究了砂浆的自由收缩规律与混凝土的环形约束收缩规律。
Early restrained shrinkage of concrete with different fly ash content was measured by ring restrained shrinkage apparatus, and hydration heat of fly ash-cement system was determined.
利用环形约束收缩实验装置测量了不同粉煤灰掺量混凝土的早期约束收缩,结合水泥—粉煤灰体系水化热的测定,研究了Ⅱ级粉煤灰对混凝土早期抗裂性能的影响,从粉煤灰对水泥—粉煤灰体系水化的延缓作用和对水泥石的微集料约束效应方面探讨了粉煤灰改善混凝土早期抗裂性能的机理。
Restrained Shrinkage Properties of Reinforced Concrete at Early Age;
钢筋混凝土早龄期约束收缩性能研究
Experimental Study on Dry Shrinkage and Crack Resistance under Restrained Shrinkage of Ultra High Toughness Cementitious Composites
超高韧性水泥基复合材料干燥收缩及约束收缩下抗裂性能研究
Experimental Research on Restrained Shrinkage Cracking Properties of Pumping Concrete;
泵送混凝土约束收缩开裂性能评价试验研究
Robust predictive control of constrained piecewise affine systems based on a contractive sequence of sets
基于收缩序列集的约束PWA系统鲁棒预测控制
Effectiveness of the Shrinkage-Compensation Concrete for the Cracking Control of the Reinforced Concrete Walls Restrained by Basement;
补偿收缩混凝土在受基础约束钢筋混凝土墙中的控裂效能评价
Fundamental Restraining Model of Concrete Frame-Slab-Beam Structures under Temperature and Shrinkage Action;
混凝土框架梁板结构温度及收缩作用下的基本约束模型
Measurement Method for Shrinkage and Crack of Light Aggregate Concrete
采用内约束法评价轻集料混凝土的干燥收缩开裂
A Projection and Constraction Method for a System of Nonlinear Equations With Convex Constraints
带凸约束非线性方程组问题的一种投影收缩算法
A compressing or restraining force, influence, or thing.
约束，束缚压缩或限制的力量、影响或事物
Time Compression Mode of Supply Chain Based on the Theory of Constraints;
基于约束理论的供应链时间压缩模式
A New Steepest Potential Reduction Mehod for Constrained Equations
带约束方程的一种新最速势缩减算法
the restraints on the family budget of a limited income
有限的收入对家庭开支预算的约束
The Institutional Restraints and Institutional Innovations of Chinese Farmers Income Growth;
我国农民增收的制度约束与制度创新
On the Restriction of Cost Profit and the Choice of Policy Tools for Rules and Regulations;
成本收益约束与规制政策工具的选择
Economic Growth,Demand Restriction and Tax Structure in China;
中国的经济增长、需求约束与税收结构
On the Restrictions Faced by Current Tax Adjustment-controlling and Policy Making;
当前税收调控面临的约束与政策选择
Return-Risk Restrain and Students' Strategic Decision of Employment in Grass-Roots Areas
收益—风险约束与大学生基层就业决策
Fast multi-objective constrained evolutionary algorithm and its convergence
快速约束多目标进化算法及其收敛性