Analysis of the Effect of Waste Glass Powder on the Mechanical and Thermal Properties of Foam Concrete
Despite the widespread application of foam concrete in the construction field,there remains a need for in-depth investigation into its performance when incorporating waste glass powder as a par-tial replacement for fine aggregate.Taking foam concrete as the research object,the physical,me-chanical,and thermal experiments were conducted to analyze the physical,mechanical and thermal properties of foam concrete under the replacement rate of 0%～50%river sand with waste glass pow-der.The results demonstrate that a glass powder dosage of 30%enhances the workability of foam concrete,while the initial and final setting times improve with increasing glass powder dosage,and the highest increase is 58%and 29%,respectively.Moreover,the addition of glass powder signifi-cantly enhances the mechanical properties of foam concrete.The optimal performance is observed at a 20%dosage,leading to a 17%increase in average compressive strength,a 38%increase in splitting strength,and a 30%increase in flexural strength.The ultrasonic pulse velocity slightly increases at a dosage of 20%and decreases at higher dosages.Additionally,the incorporation of glass powder could enhance the thermal properties of foam concrete to some extent.
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