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 s...

As an environmentally friendly pavement material, porous concrete in seasonal frozen region is often subjected to repeated loads and freeze-thaw cycles. Therefore, the fatigue property of under extremely important. However, few researches have been reported on topic. Based this background, paper investigates flexural ground tire rubber/silica fume composite modified (GTR/SF-PC) with experimenta...

The degree of dispersion of short microfibers in cement, as assessed by electrical resistivity measurement for the case of electrically conductive fibers at a volume fraction below the percolation threshold, is improved by the use of admixtures ~namely, silica fume, acrylic particle dispersion, methylcellulose solution, and silane! and fiber surface treatment ~such as ozone treatment!. Acrylic ...