To solve the problem of resource value-added of urban construction waste recycling aggregates,the optimal type and dosage of alkaline activator were selected by studying the enhancement effect of alkaline activator on municipal road construction and the goal of comprehensive performance optimization,and the experimental study was carried out.The research shows that adding alkaline activator to cement-based materials can effectively improve the strength of waste aggregate,the water absorption rate of aggregate,the bonding strength of concrete,and the porosity and cracks of concrete,so as to improve the comprehensive strength of concrete.By adding alkaline recycled aggregate,it achieves the same performance as natural aggregate,so as to meet the minimum strength requirements of the current standard for semi-rigid pavement.
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