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How Air Voids Affect the Performance of Concrete Subjected to Fire

机译：空气空隙如何影响混凝土的性能受到火灾

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作者
Chen, Yu.;
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作者单位

University of Washington.;

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授予单位 University of Washington.;
学科
学位 Masters
年度 2019
页码 53 p.
总页数 53
原文格式 PDF
正文语种 eng
中图分类 AAI13809972;
关键词
Air entraining admixture; Built environment; Fire resistance; Spalling;

机译：空气夹带混合物;建设环境;防火性能;拼写;

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专利

1. Performance of Concrete Members Subjected to Large Hydrocarbon Pool Fires [J] . Renata I. Zwiers, Bruce J. Morgan PCI journal . 1989,第1期

机译：遭受大型烃池火的混凝土构件的性能
2. Performance of Concrete Members Subjected to Large Hydrocarbon Pool Fires [J] . Bruce J. Morgan, Renata I. Zwiers PCI journal . 1989,第1期

机译：遭受大型烃池火的混凝土构件的性能
3. The frost resistance versus air voids parameters of high performance self compacting concrete modified by non-air-entrained admixtures [J] . Beata Lazniewska-Piekarczyk Construction and Building Materials . 2013,第nova期

机译：用非加气剂改性的高性能自密实混凝土的抗冻性与气孔参数
4. EFFECTS OF ADMIXTURES ON AIR-VOID STABILITY OF CONCRETE SUBJECTED TO PRESSURIZATION [C] . W.D. Elkey, D.J. Janssen, K.C. Hover Second International Conference on Concrete Under Severe Conditions Vol.3 CONSEC '98, Jun 21-24, 1998, Tromso, Norway . 1998

机译：添加剂对受压混凝土气固性的影响
5. Automated air-void system characterization of hardened concrete: Helping computers to count air-voids like people count air-voids---Methods for flatbed scanner calibration. [D] . Peterson, Karl. 2008

机译：硬化混凝土的自动气隙系统表征：帮助计算机像人们计算气隙一样计算气隙-平板扫描仪校准方法。
6. Fire Performance of Heavyweight Self-Compacting Concrete and Heavyweight High Strength Concrete [O] . Farhad Aslani, Fatemeh Hamidi, Qilong Ma 2019

机译：重型自密实混凝土和重型高强混凝土的防火性能。
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

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