Mix ratio design and mechanical properties of BSW reclaimed concrete
In order to investigate the mechanical properties of recycled concrete with building solid waste(BSW),an orthogonal experimental design was employed,with water-cement ratio,aggregate replacement ratio,and aggregate particle size as the influencing factors.The optimal mix proportion and the levels of influence factors were determined using intuitive analysis and analysis of variance.A linear regression equation for the compressive strength of BSW recycled concrete was established through linear fitting,aiming to explore the correlation between compressive strength at different ages.The results indicate that the optimal mechanical properties of BSW recycled concrete are achieved with a water-cement ratio of 0.4,an aggregate replacement ratio of 20%,and an aggregate particle size of 5-16mm.According to the contribution rate of the influencing factors,the degree of influence on strength follows the order of water-cement ratio,aggregate replacement ratio,and aggregate particle size.The data points in the linear regression equation are uniformly distributed on both sides of the fitted line,indicating a relatively good fit.
the reclaimed concreteorthogonal testmix proportionmechanical property
万方数据
维普
