Properties and behavior of limestone cement concrete and mortar
Properties and behavior of limestone cement concrete and mortar
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DOI：
10.1016/s0008-8846(00)00372-0
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发表时间：
2000-10
影响因子：
11.4
通讯作者：
S. Tsivilis;G. Batis;E. Chaniotakis;G. Grigoriadis;D. Theodossis
中科院分区：
文献类型：
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作者：
S. Tsivilis;G. Batis;E. Chaniotakis;G. Grigoriadis;D. Theodossis
本文研究了石灰石水泥混凝土和砂浆的性能和工作性能。采用熟料、石膏和石灰石混合粉磨的方法，制备了不同细度和石灰石含量的波特兰石灰石水泥。为了具有相容的结果，选择具有相同强度水平的所生产的水泥。石灰石含量不超过20%的波特兰石灰石水泥具有良好的混凝土强度和工作性，而其吸附性和氯离子渗透性与纯水泥混凝土相似。与纯水泥混凝土相比，石灰石水泥混凝土显示出较低的抗冻性和抗融性。含有20%石灰石的波特兰石灰石水泥显示出对钢筋腐蚀的最佳保护。石灰石的掺入降低了砂浆的碳化深度和总孔隙率。
In this paper, the properties and the behavior of limestone cement concrete and mortar are studied. Portland limestone cements of different fineness and limestone content have been produced by intergrinding clinker, gypsum and limestone. In order to have compatible results, the produced cements were selected to have the same level of strength. Portland limestone cement, containing up to 20% limestone, presents satisfactory concrete strength and workability, while the sorptivity and the chloride permeability seems to be similar to the pure cement concrete. Limestone cement concretes indicate lower resistance to freezing and thawing compared with the pure cement concrete. Portland limestone cement, containing 20% limestone, shows the optimum protection against rebar corrosion. Furthermore, the limestone additions decrease the carbonation depth and the total porosity of the mortar.