Mechanical properties and freezing and thawing durability of concrete incorporating a ground granulated blast-furnace slag
Mechanical properties and freezing and thawing durability of concrete incorporating a ground granulated blast-furnace slag
复制标题
粒状高炉矿渣混凝土的力学性能和冻融耐久性
DOI：
10.1139/l89-029
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发表时间：
1988
影响因子：
1.4
通讯作者：
V. Malhotra
中科院分区：
文献类型：
--
作者：
V. Malhotra
本文给出了实验室研究的结果，以确定混凝土的机械性能和冻融耐久性，其中包括来自加拿大来源的粒状高炉渣。水-（水泥+矿渣）比（W/(C + S)）范围为0.70至0.45，配制了15种0.06 m3混凝土混合物。矿渣部分替代普通硅酸盐水泥的比例从0到100%不等。所有的混合物都含有空气。为测定混凝土的力学性能和抗冻融性能，浇铸了若干试验柱和试验柱。试验结果表明，在50%及以下的替代水平下，特别是在W/(C + S)为0.55量级及以下的情况下，磨碎的高炉矿渣颗粒可以较好地部分替代混凝土中的硅酸盐水泥。在第28天，无论W/(C + S)，也无论所研究的矿渣替代水泥的百分比如何，抗压强度…
This paper gives the results of laboratory invstigations to determine the mechanical properties and freezing and thawing durability of concrete incorporating a granulated blast-furnace slag from a Canadian source. A series of fifteen 0.06 m3 concrete mixtures were made with water-to-(cement + slag) ratios (W/(C + S)) ranging from 0.70 to 0.45. The percentage of slag used as a partial replacement for normal portland cement ranged from 0 to 100% by weight. All mixtures were air entrained. A number of test cylinders and prisms were cast for determining the mechanical properties and freezing and thawing resistance of concrete.The test results indicate that the ground granulated blast-furnace slag can be used with advantage as a partial replacement for portland cement in concrete at 50% or lower replacement levels, especially at W/(C + S) of the order of 0.55 or lower. At 28 days, irrespective of the W/(C + S) and regardless of the percentage replacement of the cement by the slag investigated, the compressive ...