The Treatment Technology of Void Beneath Cement Concrete Pavement Bottom in Cold Area

Based on the discussion of beneath cement concrete pavement void disease, the slab bottom grouting is the main method to solve the disease, and also discussing the strength, frost resistance, resistance to shrinkage, flow uniformity, grouting construction points and ratio of grouting materials, the key points of construction quality control of grouting are specified, the cement pavement disease treatments are put forward.