Study on PCC of Fast Hardening Polymer Cement Composite for Bridge Expansion Joints
In order to solve the problem of rapid repair of damaged bridge expansion joints while ensuring their normal function.In this paper,a fast hardening cement-based mortar material,namely Polymer CementComposite(PCC,Polymer Cement Composite),was prepared by ad-justing the ratio of lime to sand,admixtures and mineral admixtures,using sulphoaluminate cement and ordinary Portland cement as cementing materials.Its 5 h compressive strength is 32 MPa,28 d compressive strength is more than 60 MPa,dry shrinkage is less than 0.4‰,it is an ideal rapid repair material for bridge expansion joints.
Fast hardening cementPolymerBridge expansion joint
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