NEXCEL Convened the First Project Summary Meeting

Time: 2023/07/10 Publisher： oiginal Views：

Introduction

On July 6, 2023, NEXCEL convened the first Project Summary Meeting for five 2022 Small Fund Projects in Beijing. The review panel, composed of eleven renowned experts from Technical Committee of NEXCEL, has conducted rigorous and objective evaluations of the project outcomes.

WANG Zhendi

China Building Materials Academy

"Research on 3D Printed Polymer Modified Concrete and Its Interface Enhancement Technology"

This project addressed the challenge of regulating the printability of 3D printed concrete by utilizing the characteristics of hydrocarbon-based polymer materials. It improved the fusion and bond between layers by using polymer emulsion, achieving a significant increase in interfacial bond strength. The project also proposed the use of nylon nails to enhance the overall integrity of 3D printed polymer modified concrete, improving its structural performance.

WANG Jian

CNBM Zhongyan Technology

"Research and demonstration application of admixtures for (ready-mixed fluid) solidified soil"

This project established the influence patterns and control methods of various components of admixtures used in (ready-mixed fluid) solidified soil. It clarified the solidification mechanism of admixtures for (ready-mixed fluid) solidified soil. The project also developed a specialized dispersant for admixtures used in (ready-mixed fluid) solidified soil and elucidated the mechanism of action between the dispersant and soil, leading to the development of fluidity control technology for (ready-mixed fluid) solidified soil.

ZHEN Wei

Research Institute of Highway Ministry of Transport

"Application technology and engineering demonstration of hot in-place recycling of waste asphalt pavement"

This project developed a noval additive with regeneration and warm-mix functions, solving the technical challenge of incompatibility between commonly used warm-mix agent and regenerant. It established a composition design method for in-place warm-mix recycled asphalt mixture based on volume parameters, workability and performance optimization, which not only met the specifications for mixture performance but also reduced the construction temperature for in-place regeneration by over 30°C. It achieved high-performance, high-value, and efficient primary in-place regeneration of existing pavements.

LI Fangxian

South China University of Technology

"Investigation on Recycled Polystyrene Particles/Foamed Concrete Composite Insulation Material and Its Application in Composite Sandwich Panel"

This project proposed pre-wrapping method to avoid the floating of recycled EPS particles, achieving the uniformity and stability of recycled EPS particles/foam concrete insulation material slurry. The project clarified the key technology of matching between recycled EPS particles/foam concrete insulation materials and silicon calcium panels, optimizing the performance of composite sandwich wall panels.

WANG Junwei

China Railway Test & Certification Center

"Study on key technology of polymer modified inferior coarse aggregate"

This project utilized a combination of chemical and physical modification methods to improve the performance of inferior coarse aggregates. It simultaneously reduced the water absorption and improved the strength of aggregates, simplifying the modification process. The use of a new polymer modifier also greatly enhanced the hydrophobicity of aggregates, effectively improving the agglomeration of concrete powder materials.

2022 SFP projects resulted in a total of

10 published papers,

(4 SCI&EI papers)

7 patents

4 industry and group standards

1 production line

5 engineering demonstrations in the fields of 3D printed concrete, solidified soil, regenerated asphalt pavement, and building insulation wall panels

The review panel spoke highly of the project achievements. They recognized that all of the projects closely aligned with the national carbon reduction strategy, focusing on nonmetallic materials (especially hydrocarbon-based materials) and conducting fundamental research with high theoretical innovation. The developed products and equipments have broad application prospects, significant economic and social benefits, and the related standards, demonstration projects and production lines will contribute to the transformation and application of research outputs. The project outcomes have great significance in promoting ecological protection, energy conservation, emission reduction, and green manufacturing.

On the same day, NEXCEL also organized the second mid-term evaluation meeting for 2022TDA projects and 2023SFP projects. The experts provided insightful comments and praise for the innovative projects in various fields. They also provided constructive opinions and feedback for projects that lacked innovation or deviated from their objectives. The mid-term evaluation meeting played a crucial guiding role in the subsequent development of those projects.

We never suspect that the hope of the future, as the research achievements of each project will accelerate the realization of NEXCEL's vision: to accelerate the application of nonmetallic materials in building and construction sector, deploy nonmetallic innovation technology for the future, and create more sustainable building solutions!