Study On Repairing Material Of Cement Concrete Pavement Which Based On Slag

The cement concrete pavement inevitably suffers from local damages such as broken slab or chipboard due to repeated external driving loading and constant effects of environmental factors. Traditional repairing materials usually result in higher cost and late traffic opening. The issue of fast local repair, therefore, bothers many practitioners when dealing with the maintenance of cement concrete pavement. The current paper addresses this issue by developing a high-early strength and cost efficient mending material with industrial solid waste as basic material. Cement clinker and water glass were stimulated by double alkali to produce the target material.Firstly, orthogonal test analysis was employed to analyze cement concrete road repair material with regard to its setting time and compressive flexural strength. The mortar formula was then identified to make a comparison with the traditional Ordinary Portland cement (42.5 magnitudes) in terms of setting time, strength and drying shrinkage, where the target material succeeds.Secondly, mixed proportion design was adopted for the cement concrete of the target material. Also the comparison was made between the traditional Ordinary Portland cement (42.5 magnitudes) and target material in terms of workability and mechanical characteristics. The result shows that target repair material has better road performance.Finally, empirical study was conducted to test the interface bond of the target material with analysis of its cost efficiency as well as environmental friendliness. The findings of the current study indicate that the target repair material meets the performance demands of ideal cement concrete road repair material, which has the potential to be widely applied in practice.