石粉含量对高性能混凝土性能的应用研究

Study on the Application of Stone Powder Content to the Performance of High Performance Concrete

通过研究不同石粉含量对混凝土性能的影响,其中C55混凝土强度及干缩性能都存在一个最大值,随着石粉含量的增加达到最大,如石粉含量继续增加则减小;耐久性能在不同石粉含量情况下,其性能变化不大;抗渗性在石粉含量5%~10%的情况下,影响较小。从而在实际应用中要合理、科学控制混凝土中石粉含量就显得尤为重要,同时为今后的施工可以起到借鉴作用。

By studying the influence of different stone powder content on concrete performance,the strength and dry shrinkage of C55 concrete have a maximum value,which reaches the maximum with the increase of stone powder content,and decreases if the stone powder content continues to increase;The durability has little change under the condition of different stone powder content;The impermeability is less affected when the stone powder content is 5%~10%.Therefore,it is particularly important to reasonably and scientifically control the content of stone powder in concrete in practical application,which can be used as a reference for future construction.