碾压混凝土坝外掺MgO微膨胀混凝土的试验研究

Experimental study on micro - expansion concrete mixed by MgO of roller compacted concrete dam

本文结合辽宁省白石碾压混凝土坝及阎王鼻子碾压混凝土坝,通过对不同MgO含量的胶材净浆的压蒸试验,确 定了MgO的合理掺量;对常规混凝土、常规碾压混凝土及外掺MgO微膨胀碾压混凝土的自生体积变形进行了试验研究。

The paper fixes the rational composition of MgO through pressed and evaporated experiment of different content of MgO with Baishi roller compacted concrete dam and Yanwangbizi roller compacted concrete dam, the autogenous volume change of the conventional concrete, the conventional roller compacted concrete and the roller compacted concrete mixed by MgO are studied.