About this Research Topic
The traditional industry annually releases massive solid wastes that are usually placed in landfills, causing a big threat to local water, soil and public health. Also, it is an expensive and labour-consuming process to dispose big amount of solid wastes due mainly to the local environmental regulations. As is known, the cement is the main binder material in cementitious composites. Production of cement contributes to approximately 7% of the global carbon dioxide emissions and thus causes serious environmental pollution. Literature found that solid wastes demonstrate pozzolanic characteristics, and therefore can be used to replace part of cement in cementitious composites. This mitigates the harmful impact of the construction industry on the environment. As a result, the utilization of solid wastes in cementitious materials can achieve cost-effective and environmental-friendly objectives.
With the deepening of energy conservation, emission reduction and solid wastes recycling, it is possible to make concrete from the solid waste generated in the process of underground construction and mineral mining. However, direct application of solid wastes incorporated to construction material has numerous drawbacks including alkali-silica reaction, inferior mechanical performance and lifespan. As a result, modifying methodologies such as wrapping treatment and activation treatment can be a feasible solution to address this problem and improve solid waste cementitious composites. While various methodologies have been incorporated into cementitious materials, there are still challenges in terms of the wrapping procedure, manufacturing methodology, mechanical and functional optimization of solid waste reinforced cementitious material, characterization techniques, numerical simulation, long-term behavior, and life-cycle evaluation.
The aim of this Research Topic is to publish original research and review articles that present the recent advances in solid waste incorporated cementitious materials, of which the ingredients are modified by surface and aggregate treatment, within the scope of sustainable design and construction. The themes include, but are not limited to:
· High-performance and high value-added solid waste utilization
· Beneficial use or recycling of solid waste and byproducts in green built environment
· Alkali-activation, ultrasonic vibration wrapping characteristics of solid wastes
· Green and smart building design and construction
· Advanced manufacturing of materials, processes, and techniques
· Cementitious materials incorporating solid wastes
· Function optimization of modified solid wastes incorporated concrete
· Numerical simulation of green and sustainable cementitious materials lifespan
· Investigation of mechanical strength, lightweight, conductivity and self-compact properties
Keywords: Multi-Functional Construction Materials, Solid Wastes, Modifying Technology
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