What is the construction process for renovating existing building exterior walls with UHPC panels? UHPC Renovation Construction Technical Specifications

The renovation construction process for UHPC panels on existing building exterior walls consists of seven major steps: site survey, substrate treatment, measurement and layout, keel installation, panel installation, joint treatment, and cleaning and acceptance. Key controls include substrate strength (≥0.3MPa), flatness (≤3mm/2m), fixing with dedicated anchors (pull-out resistance ≥3kN), joint width of 10-15mm, and sealant movement capability ≥25%.

In an old residential community renovation project, after the original tiled wall surface was removed, measurement and layout accuracy was controlled within ±2mm, light steel keel spacing was ≤600mm, and UHPC panels were installed using a hanger system allowing three-dimensional adjustment of ±10mm. Construction did not disturb residents' normal life, and the construction period was 40% shorter than traditional methods. After renovation, building energy consumption dropped by 30%, and the appearance was completely renewed.

Substrate Treatment Standards

Substrate strength ≥0.3MPa; flatness ≤3mm/2m; these standards ensure a solid installation base.

Measurement and Layout Accuracy

Layout error ≤2mm; this precision ensures accurate installation.

Installation System Design

The hanger system is adjustable in three dimensions; this design accommodates substrate deviations.

Joint Treatment Process

Joint width 10-15mm; this process ensures durable sealing.

Renovation construction requires professional solutions. Qinglong UHPC's mature processes deliver high efficiency and quality.