Fostering lightweight and eco-friendly Timber-UHPC structures**

超高性能混凝土(UHPC)是一种新型的水泥复合材料，由于其优异的力学性能正在世界范围内涌现。超高性能混凝土在木材-混凝土复合材料(TCC)中的应用目前还没有被开发出来，因为超高性能混凝土板具有高的杨氏模量，从而增加了结构的刚度和抗压强度，从而提高了结构的最大承载能力。此外，超高性能混凝土楼板厚度的减少可以进一步降低楼板厚度，从而获得重要的市场收益。最后，相对于传统的混凝土地板，这种木材-超高性能混凝土地板厚度更小，节省材料，对全球二氧化碳排放的影响更小。*NSERC Engage研究旨在开发由超高性能混凝土和木材制成的轻质环保地板系统的新解决方案，该解决方案可以充分利用超高性能混凝土板的高抗压强度和高E模数。*在当前应对气候变化和大都市区强劲增长的背景下，开发优化的轻质和环保的多层建筑楼板对加拿大的未来至关重要。考虑到加拿大新建多层建筑的住宅楼层，木材-超高性能混凝土的潜在市场是突出的。这项研究将促进木材-超高性能混凝土地板的优化，为加拿大未来的多层建筑提供可持续的组合结构。

Ultra-High Performance Concretes (UHPC) is a new class of cement composites that are emerging worldwide thanks to their outstanding mechanical properties. The use of UHPC in Timber-Concrete Composite (TCC) is today unexplored appears particularly promising as the UHPC slab is endowed with high Young modulus , which increases the structural stiffness, and compressive strength, which increases maximum load bearing capacity of the structures. Moreover, the reduced thickness of the UHPC slab allows further reducing the floor thickness with important market gain. Finally, with respect to a conventional concrete floor, such timber-UHPC floor with reduced thickness, material saving and less impact to the global CO2 emission. ****This NSERC Engage research aims at developing new solutions for lightweight and eco-friendly floor system made of UHPC and timber, which can take fully advantage of the high compressive strength of and the high E-modulus of UHPC slabs. ****In the current context of fight to climate changes and strong growth of the metropolitan areas, the development of optimized lightweight and eco-friendly floors for multi-storey buildings is critical for the future of Canada. Considering the residential floors of new multi-storey building in Canada, the potential market for timber-UHPC is outstanding. This research will foster the optimization of timber-UHPC floor towards sustainable composite structure for future multi-storey buildings in Canada.****