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石灰石粉在普通混凝土中的应用 被引量:7

Application of Limestone Powder in Ordinary Concrete
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摘要 利用磨细石灰石粉分别取代混凝土中粉煤灰、矿粉的用量,通过相关混凝土性能试验,分析了石灰石粉在不同掺量情况下对混凝土的工作性能、力学性能的影响。结果表明:利用石灰石粉取代50%以上甚至完全取代粉煤灰与矿粉复合掺入混凝土中,能够改善混凝土的和易性能,其各龄期强度能够与基准混凝土持平甚至是有所超过;针对不同细度的石灰石粉进行了混凝土试验,证明石灰石粉越细,其填充性越好,对混凝土性能的益化作用越大;同时对石灰石粉取代不同厂家粉煤灰50%、100%用量进行了对比试验研究,证明石灰石粉替代粉煤灰用量具有广泛的适应性。 The use of ground limestone powder to replace the concrete, respectively, fly ash, the amount of slag concrete to the relevant performance test, analysis of the different content of limestone powder concrete circumstances of the work performance, mechanical properties, research results show that: the use of limestone powder to replace more than 50% even completely replace the complex mixing of fly ash and slag concrete, and easy to improve the performance of concrete, its age and the base strength of concrete can even be more than fair; At the same time by different manufacturers to replace the limestone powder 50% fly ash, the amount of 100 percent compared to a pilot study to prove the amount of limestone powder fly ash to replace a wide range of adaptability.
出处 《粉煤灰》 2009年第5期16-18,21,共4页 Coal Ash China
关键词 石灰石粉 普通混凝土 粉煤灰 强度 limestone powder ordinary concrete fly strength
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