Early-age concrete stresses induced by drying shrinkage and thermal dilation

机译：干燥收缩和热膨胀引起的早期混凝土应力

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

To fully understand the role of drying shrinkage and thermal stresses in concrete crack development, the material-induced stress distribution must be investigated. A simple model is presented for quantifying the internal stress distribution in concrete exposed to drying, temperature changes, or self-desiccation. The measured concrete internal relative humidity, which has a fundamental relationship to material-induced stress development, is a main parameter in the model. The free shrinkage stress distribution and fully restrained stress distribution is modeled for a broad range of concrete mixtures. The model predicts a growing zone of damage near the drying surface of the fully restrained concrete which may be related to crack initiation. Further development of this model and combination with fracture and finite element models may lead to an improved understanding of concrete cracking in real structures and pavements.

机译：为了充分理解干燥收缩和热应力在混凝土裂缝发展中的作用，必须研究材料引起的应力分布。提出了一个简单的模型来量化暴露于干燥，温度变化或自干的混凝土内部应力分布。该模型中的一个主要参数是所测量的混凝土内部相对湿度，该湿度与材料引起的应力发展有基本关系。自由收缩应力分布和完全约束应力分布是针对广泛范围的混凝土混合物建模的。该模型预测了完全受约束的混凝土干燥表面附近损坏的增长区域，这可能与裂纹萌生有关。对该模型的进一步开发以及与断裂和有限元模型的结合可能会导致人们更好地了解实际结构和路面中的混凝土裂缝。

著录项

来源
《International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL)》|2004年|P.1089-1097|共9页
会议地点 Delft(NL)
作者
Z.C. Grasley; D.A. Lange;
展开▼
作者单位

University of Illinois at Urbana-Champaign;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类市政工程;
关键词

相似文献

外文文献
中文文献
专利

1. Early-age deformation, drying shrinkage and thermal dilation in a new type of dental restorative material based on calcium aluminate cement [J] . Lars Kraft, Hakan Engqvist, Leif Hermansson Cement and Concrete Research . 2004,第3期

机译：新型基于铝酸钙水泥的牙齿修复材料的早期变形，干燥收缩和热膨胀
2. Analysis of Early-Age Thermal and Shrinkage Stresses in Reinforced Concrete Walls [J] . Barbara Klemczak, Agnieszka Knoppik-Wrobel ACI Structural Journal . 2014,第2期

机译：钢筋混凝土墙的早期热应力和收缩应力分析
3. Comparison of Analytical Methods for Estimation of Early-Age Thermal-Shrinkage Stresses in RC Walls [J] . Associate Prof. B. Klemczak PhD. Dsc.Silesian University of Technology Akademicka 5 44-100 GliwiceEmailOther articles by this author:De Gruyter OnlineGoogle Scholar, Prof. A. Knoppik-Wróbel Msc.PhD student Silesian University of Technology Akademicka 5 44-100 Gliwice AgnieszkaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar Archives of civil engineering . 2013,第1期

机译：RC墙体早期热收缩应力估算方法的比较
4. Early-age concrete stresses induced by drying shrinkage and thermal dilation [C] . Z.C. Grasley, D.A. Lange International PhD Symposium in Civil Engineering . 2004

机译：干燥收缩收缩和热扩张诱导的早期混凝土胁迫
5. Characterization and Modeling of Moisture Flow through hydrating Cement-Based Materials under Early-Age Drying and Shrinkage Conditions [D] . Bakhshi, Mehdi 2011

机译：在早期干燥和收缩条件下水合水泥基材料中水分流的表征和建模
6. Evaluation of the Thermal and Shrinkage Stresses in Restrained High-Performance Concrete [O] . Yang Yang, Linhao Ma, Jie Huang, 2019

机译：约束高性能混凝土的热收缩应力评估
7. Evaluation of Thermal and Shrinkage Stresses in Hardening Concrete Considering Early-Age Creep Effect [O] . 2002

机译：考虑早期蠕变效应的硬化混凝土中热和收缩应力的评价
8. Characterizing and Quantifying the Shrinkage Resistance of Alkali-Activated (Cement-Free) Concrete and Evaluating Potential Methods for Reducing Early-Age Cracking in Pavements and Bridges. [R] . Peethamparan, S., Thomas, R. J. 2015

机译：表征和量化碱激活（无水泥）混凝土的抗收缩性能及评估减少路面和桥梁早期开裂的潜在方法。

Early-age concrete stresses induced by drying shrinkage and thermal dilation

摘要

著录项

相似文献

相关主题

期刊订阅