基于材料成本与碳排放成本最小化的低碳混凝土配合比优化设计方法

doi:10.11896/cldb.23120180

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Abstract In order to meet the requirements of safety, durability, economy and low carbon, an optimization design method for mix proportion of low-carbon concrete was proposed based on multi-performance requirements of strength, durability, cost, carbon emission and working perfor-mance. The objective function of low-carbon concrete was constructed based on the carbon pricing first by considering the total cost of material and carbon emission. Then the prediction models for compressive strength, chloride diffusion coefficient and aging factor of fly ash and slag concrete were determined. Meanwhile, the constraint conditions for meeting the multi-performance requirements of strength, durability and working performance were constructed. Moreover, the optimization model for mix proportion design of low-carbon concrete with multi-performance objective requirements was established. Finally, the mix proportions such as cement content, fly ash content and slag content of low-carbon concrete were determined by solving the optimization model with the genetic algorithm. The efficiency of the proposed method was validated by comparing it with conventional methods. Analysis results show that the total cost and carbon emission could be reduced by the proposed method about 40.3—47.8 yuan·m^-3 and 34.5—43.0 kg CO₂-eq·m^-3 respectively compared with the conventional mix proportion design method based on strength and working performance, while it may reduce the total cost and carbon emission by 1.8—24.5 yuan·m^-3 and 1.7—19.1 kg CO₂-eq·m^-3 respectively compared with the conventional mix proportion design method based on strength and durability when the design strength of concrete is 35—50 MPa.

Key words： concrete mix proportion low-carbon durability multi-performance

Published: 25 July 2025 Online: 2025-07-29

CLC number:

TU528.01

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	Articles by authors
	LIANG Zhuoyue
	YU Bo
	CAI Shengyuan
	XIE Weiwei

Cite this article:

LIANG Zhuoyue,YU Bo,CAI Shengyuan, et al. Optimization Design Method for Mix Proportion of Low-carbon Concrete Based on Minimization of Material Cost and Carbon Emission Cost[J]. Materials Reports, 2025, 39(14): 23120180-6.

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https://www.mater-rep.com/EN/10.11896/cldb.23120180 OR https://www.mater-rep.com/EN/Y2025/V39/I14/23120180

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