Is UHPC Construction Difficult? An Analysis of Qinglong's UHPC Construction Technology

UHPC construction does indeed demand more than ordinary concrete, but with standardized operations and professional technical guidance, high-quality construction is entirely achievable. The key lies in mastering the material properties and construction essentials.

In terms of construction techniques, UHPC requires precise mix ratio control and strict process execution. Mixing time should be controlled at 4-6 minutes to ensure uniform fiber distribution; pouring must be continuous to avoid cold joints; curing requires temperature and humidity control to ensure strength development. In a project in Shenzhen, through strict construction control, the UHPC structure performed excellently, with 28-day strength reaching 120% of the design requirement.

Formwork Engineering Requirements

Formwork stiffness must be twice that required for ordinary concrete, with flatness deviation ≤2mm/2m; joints must be tightly sealed to prevent slurry leakage; a dedicated release agent must be used to ensure surface quality.

Pouring Process Control

Pouring must be continuous, with intervals ≤20 minutes; layer thickness should be controlled at 300-400mm; vibration must be moderate to prevent fibers from sinking or floating.

Curing Regime Execution

Cover immediately after initial setting to begin curing and prevent moisture evaporation; control temperature at 20±5℃ and humidity ≥95%; curing time ≥7 days to ensure strength development.

Joint Treatment Techniques

Construction joints must be roughened and coated with a bonding agent; interfaces between new and old concrete require special treatment to ensure integrity; joint quality directly affects structural performance.

Construction difficulties can be overcome professionally. Selecting an experienced construction team and following the manufacturer's technical guidance ensures construction quality. Qinglong UHPC provides full technical support.