Ultra-high performance concrete (UHPC) is a new type of cement-based composite developed in recent 30 years, which has ultra-high mechanical properties and durability, as well as good toughness, bonding performance, impact resistance and fatigue resistance.
In recent years, with the continuous maturity of UHPC preparation technology, its performance advantages are gradually recognized by the public. UHPC has become a research hotspot in the field of concrete, which is widely used in structure, decoration, reinforcement, rapid repair, paving and joint filling.
However, due to its high cost, the application technology research and pilot projects of UHPC at home and abroad mainly stay in bridge engineering, building exterior wall decoration engineering and a small number of existing concrete building maintenance and reinforcement engineering. Many experts and scholars actively explore the feasibility of the application of UHPC in building structural engineering, among which the application of prefabricated buildings has attracted much attention.
Based on the classification of UHPC, the application prospect of UHPC in the field of prefabricated buildings is analyzed, and the quality control index system of UHPC in prefabricated buildings is put forward to promote the application of UHPC in the field of prefabricated buildings.
According to the investigation of the application status of UHPC, the main application categories and parts of UHPC are as follows: bridge engineering, including cast-in-place bridge deck pavement, bridge wet joint, precast bridge deck, bridge deck pavement and precast box girder;
Construction engineering, including the joint connection of decorative panels of building external walls, small prefabricated components and prefabricated components; Municipal engineering, including prefabricated cover plate, prefabricated integrated trench and structural reinforcement of infrastructure, etc.