Bending strength 2 Compressive strength 2 Concrete aggregates 2 Recycled aggregate concrete 2 Recycling 2 Water absorption Adaptive boosting 1 Basalt 1 Basalt fiber 1 Blast furnaces 1 Compressive and flexural strengths 1 Cost effective 1 Cost effectiveness 1 DMFM fiber 1 Decision trees 1 Disposable medical face mask fiber 1 Disposables 1 Error values 1 Errors 1 Face masks 1 Fibers 1 Fibre-reinforced 1 Flexural strength 1 Fly ash 1 Gradient boosting 1 Green concrete 1 Hybridisation 1 Machine learning 1 Machine-learning 1 Mean absolute error 1