粉煤灰及硅灰对再生粗骨料混凝土抗冲磨性能的影响研究OA
Study on Influence of Fly Ash and Silica Fume on Impact Resistance of Recycled Coarse Aggregate Concrete
为探究再生混凝土采用不同再生粗骨料取代率时的抗冲磨性能差异,文中就粉煤灰及硅灰对再生粗骨料混凝土抗冲磨性能的影响进行研究.结果表明,随着再生骨料取代率提高,混凝土抗冲磨性能逐渐降低;硅灰的掺入有助于强化混凝土抗冲磨性能,而粉煤灰的掺入会对其产生不利影响;复掺粉煤灰和硅灰条件下,两者比例不同则混凝土抗冲磨性能所受影响也有不同,其中,掺加5%硅灰和15%粉煤灰时,再生混凝土具有良好抗冲磨性能且高于基准混凝土.
In order to investigate the impact of recycled concrete with different regenerated coarse aggregate substitution rates,the effects of fly ash and silica fume on the impact of recycled coarse aggregate concrete were studied.The experimental results show that the impact resistance of concrete gradually decreases during the process of increasing the replacement rate of recycled aggregate.The addition of silica fume is condu-cive to enhancing the impact resistan…查看全部>>
陈勇
中铁十一局集团第一工程有限公司,湖北 襄阳 441000
土木建筑
硅灰粉煤灰再生混凝土粗骨料抗冲磨性能
Silica fumeFly ashRecycled concreteCoarse aggregateAbrasion resistance
《江西建材》 2024 (3)
12-13,16,3
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