Negative carbon concrete for achieving next generation of sustainable and durable modular integrated construction (MIC): A review
Xinlin Ji, Lijie Chen, Ying Zhong, Yi Zhang, Jiayi Li, Wei Pan, Ray Kai-Leung Su, Creative Construction Conference 2023, DOI: 10.3311/CCC2023-071
Modular integrated construction (MiC) is set to become a prominent solution to achieving the “carbon neutrality” initiative in Hong Kong, offering high productive efficiency. The concept of “low carbon construction” is proposed by the use of low carbon construction materials and the optimization of project management. However, there remains great potential in the use of these methods in reducing carbon footprint during the design and construction process. This paper firstly reviews possible pathways to reducing the embodied carbon of reinforced concrete. A novel concept known as “negative carbon concrete”, which is potentially achieved by combining CO2 mineralization – the natural carbonation of concrete with other low-carbon construction materials – is proposed.