Study on early basic mechanical properties of inorganic polymer-based fast-hardening concrete

In order to predict the application effects of inorganic polymer-based fast-hardening concrete (IPFC) in pavement emergency repair, slag, fly ash and silica fume were used as solid cementitious materials, sodium hydroxide silicate alkali-activators prepare IPFC specimens. The change rules basic mechanical properties specimens with different contents early stage studied by experiments. results show that, compressive strength each group is more than 20 MPa that slag-based (SFC) highest. SFC have highest bending when they are cured for 2 h, while fume/slag-based (SSFC) curing time up 3 h.