Properties of high-volume limestone powder concrete under standard curing and steam-curing conditions
Properties of high-volume limestone powder concrete under standard curing and steam-curing conditions
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标准养护和蒸汽养护条件下大掺量石灰石粉混凝土的性能
DOI：
10.1016/j.powtec.2016.05.054
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发表时间：
2016-11
影响因子：
5.2
通讯作者：
Honghui Chen
中科院分区：
文献类型：
--
作者：
Zengqi Zhang;Qiang Wang;Honghui Chen
通过测定大掺量石灰石粉混凝土（HVLPC）和大掺量粉煤灰混凝土（HVFAC）的孔结构、绝热温升、孔隙率、抗压强度、氯离子渗透性、1年自然碳化深度和干缩应变，对HVLPC和HVFAC的力学性能、体积稳定性和耐久性进行了对比研究。试验结果表明，大掺量石灰石粉对大体积混凝土温升的降低作用与大掺量粉煤灰相同。与大掺量粉煤灰混凝土相比，相同水胶比的大掺量石灰石粉混凝土具有较高的连通孔隙率、较低的抗压强度、较低的抗碳化能力和抗氯离子渗透能力，尤其是在蒸汽养护条件下。高掺量石灰石粉混凝土的体积稳定性与相同水胶比的粉煤灰混凝土的体积稳定性几乎相同。降低水胶比和用磨细矿渣粉代替部分石灰石粉，可以降低石灰石粉对混凝土宏观性能的负面影响。
A comparative study of the mechanical properties, volume stability and durability of high-volume limestone powder concrete (HVLPC) and high-volume fly ash concrete (HVFAC) was conducted by testing pore structures of the paste and determining the adiabatic temperature rise, porosity, compressive strength, chloride ion permeability, 1 year's natural carbonation depth and dry shrinkage strains of the concrete. The test results illustrate that the reductive influence of high-volume limestone powder on the temperature rise of the massive concrete is identical to that of the high-volume fly ash. Compared with high-volume fly ash concrete, high-volume limestone powder concrete with the same water/binder ratio has relatively high interconnected porosity, low compressive strength, and low resistance to carbonation and chloride ion penetration, especially at the steam-curing conditions. The volume stability of concrete containing a high volume of limestone powder is almost identical to that of concrete containing fly ash with the same water/binder ratio. Reducing the water/binder ratio and replacing part of the limestone powder by ground granulated blast furnace slag can reduce the negative effects of limestone powder on the macro-properties of concrete.
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影响因子：
11.4
作者：
S. Tsivilis;G. Batis;E. Chaniotakis;G. Grigoriadis;D. Theodossis
通讯作者：
S. Tsivilis;G. Batis;E. Chaniotakis;G. Grigoriadis;D. Theodossis
温度匹配养护条件下大掺量粉煤灰混凝土与大掺量钢渣混凝土性能对比
影响因子：
7.4
作者：
Shi Mengxiao;Wang Qiang;Zhou Zhikai
通讯作者：
Zhou Zhikai
影响因子：
10.5
作者：
Bentz, Dale P.;Sato, Taijiro;Weiss, W. Jason
通讯作者：
Weiss, W. Jason
DOI：
--
发表时间：
2002-07
期刊：
Concrete international
影响因子：
--
作者：
V. Malhotra
通讯作者：
V. Malhotra
影响因子：
8.4
作者：
R. Siddique
通讯作者：
R. Siddique