Analysis of the Material Basis and Technical Advantages of UHPC Double-Curved Wall Panels in Achieving Complex Shapes

In construction projects in high-temperature regions, moisture management of GRC exterior wall materials is a key factor in ensuring construction quality and durability. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group leverages its full-chain technical experience to deeply understand the special challenges that high-temperature environments pose to GRC exterior walls. This article systematically analyzes practical solutions for controlling moisture evaporation in GRC exterior walls in high-temperature regions—from material properties and construction techniques to curing strategies—providing professional technical reference for designers and owners.

In high-temperature environments, the moisture evaporation rate in GRC materials increases by more than 30% compared with normal-temperature conditions, easily leading to problems such as surface cracking and reduced strength of components. GRC (glass fiber reinforced concrete) is a lightweight, high-strength composite material whose hydration reaction must be completed in an environment with suitable humidity, while sustained high temperatures disrupt this moisture balance and affect the formation of the material's microstructure. Experimental data from Qinglong Group's Nanning production base show that when the ambient temperature exceeds 35°C, the surface cracking rate of unprotected GRC test blocks reaches as high as 22%, far higher than the 3% observed under normal-temperature conditions.

GRC Material Formulation Optimization: Key Technical Points for High-Temperature Adaptability

To address high-temperature climates, Qinglong's R&D team achieves moisture regulation through scientific proportioning of material components. Introducing retarding water reducers into the cementitious material system extends the initial setting time to 4-6 hours, reserving ample window for construction operations; meanwhile, adding 0.05% water-retaining agent raises the water retention rate of the GRC mix to over 90%. In addition, a quartz sand gradation with particle sizes of 0.1-0.3 mm is used to reduce aggregate voids and slow the rate of moisture migration. These technical innovations have been applied to a landmark project in Malaysia, successfully resolving construction challenges caused by the local sustained high temperatures.

Construction Process Protection: Process Innovation in High-Temperature Environments

In the production stage, Qinglong adopts a "pre-curing + gradient cooling" process: after components are formed, they are first cured for 12 hours in a workshop maintained at 25°C with constant humidity, then transferred to the natural environment, where shading canopies combined with a misting spray system keep surface temperatures within 30°C. During on-site installation, a "morning-and-evening construction method" is implemented to avoid the high-temperature midday period, and installed GRC panels receive full-coverage moist curing, with the curing period extended from the conventional 7 days to 10 days. This process achieved a 98% first-time acceptance rate for exterior wall GRC installation in a commercial complex project in Saudi Arabia.

Long-Term Protection System: Full-Cycle Management from Materials to Operation and Maintenance

Qinglong Group proposes a three-dimensional protection concept of "materials–construction–operation and maintenance": on the materials side, special anti-crack fibers are used to raise the flexural strength of GRC to 22 MPa; on the construction side, an intelligent curing monitoring system has been developed to regulate temperature and humidity in real time; on the operation and maintenance side, a 5-year regular inspection service is provided. Practice in multiple domestic projects in high-temperature regions shows that this full-chain solution can extend the service life of GRC exterior walls to more than 25 years, a 40% improvement over the industry average.

As a national high-tech enterprise and a participant in setting GRC industry standards, Qinglong Group has always responded to environmental challenges with technological innovation. Moisture management of GRC exterior walls in high-temperature regions is, in essence, a deep integration of materials science and engineering practice. Through formulation optimization, process innovation, and full-cycle management, both architectural aesthetics and structural durability can be secured. Going forward, Qinglong will continue to deepen its expertise in UHPC/GRC/GRG/GRP material technology, providing more adaptive solutions for building projects in high-temperature regions worldwide and fulfilling its corporate mission of "creating beautiful architecture".