Research on dynamic mechanical properties of alkali activated slag concrete under temperature-loads coupling effects

Research on dynamic mechanical properties of alkali activated slag concrete under temperature-loads coupling effects
复制标题

温度-荷载耦合作用下碱活化矿渣混凝土动态力学性能研究

DOI:
10.1016/j.conbuildmat.2017.08.015
复制
发表时间:
2017-11
影响因子:
7.4
通讯作者:
Feng Xing
Feng Xing
中科院分区:
工程技术1区
文献类型:
--
作者:
Wu-Jian Long;Jing-Jie Wei;Yu-Cun Gu;Feng Xing

文献摘要

参考文献

被引文献

相似文献

采用动态力学分析仪(DMA)研究了碱矿渣混凝土(AASC)在标准养护和自然养护条件下28 d的动态力学性能。DMA结果表明,当混凝土从−45 °C加热到250 °C时,标准固化AASC的动态力学性能高于自然固化AASC。当AASC在应力作用下加热到180 °C左右时,耗散能达到最大值。微观结构分析表明,标准固化碱矿渣水泥的孔隙数量、体积和比表面积均小于自然条件下的孔隙。经济和生态分析表明,与相同强度等级的普通波特兰水泥混凝土(OPC)相比,碱矿渣水泥的生产能耗减少2.4%,CO2排放量减少20.2%。
The 28-day dynamic mechanical properties of alkali-activated slag concrete (AASC) under standard and natural curing conditions were investigated using a dynamic mechanical analysis (DMA) device. The DMA results showed that the dynamic mechanical properties of the standard cured AASC were higher than the natural cured AASC when concrete heated from −45 °C to 250 °C. The dissipated energy reached its maximum value when AASC under stress were heated to approximately 180 °C. The microstructural analysis revealed that the pores of standard cured AASC were smaller than those under natural conditions in terms of the number of pores, volume and specific surface area. An economic and ecological analysis showed that compared with ordinary Portland cement concrete (OPC) in the same strength grade, the production of AASC consumes 2.4% less energy and produces 20.2% less CO2emissions.
DOI: 10.1088/1367-2630/aa6e21
发表时间: 2017-06-16
影响因子: 3.3
作者:
Achaoui, Y.;Antonakakis, T.;Guenneau, S.
通讯作者: Guenneau, S.
低钙碱活性粉煤灰混凝土的混合设计程序
DOI: 10.1016/j.conbuildmat.2015.01.048
发表时间: 2015-03-15
影响因子: 7.4
作者:
Junaid, M. Talha;Kayali, Obada;Black, Jarvis
通讯作者: Black, Jarvis
DOI: 10.14359/11850
发表时间: 1953-04
期刊: --
影响因子: --
作者:
D. Watstein
通讯作者: D. Watstein
DOI: 10.4028/www.scientific.net/amm.193-194.431
发表时间: 2012-08
期刊: Applied Mechanics and Materials
影响因子: --
作者:
M. Chi;R. Huang;W. Lu
通讯作者: M. Chi;R. Huang;W. Lu
DOI: 10.1016/j.matdes.2014.12.051
发表时间: 2015-03-15
期刊: MATERIALS & DESIGN
影响因子: 8.4
作者:
Shojaei, Mohammad;Behfarnia, Kiachehr;Mohebi, Reza
通讯作者: Mohebi, Reza