Effect of CO₂ Curing on the Strength of High Strength Pervious Concrete

Abstract:

This study was conducted to assess the effect of CO₂ curing on the compressive strength of high strength pervious concrete. The factors studied to evaluate compressive strength of concrete on CO₂ curing pressure, curing time, and age of specimen at testing. Three Aggregate sizes, three CO₂ curing pressures, three CO₂ curing time, and three testing ages were used in this investigation. The research tried to produce a high strength pervious concrete and use carbon dioxide for curing to find out whether it could enhance the compressive strength. The results show that the compressive strength of the control group increases rapidly and its 90-day compressive strength closed to 60 MPa. The 1-day compressive strength has a major impact after CO₂ curing and their strength decreased by about 0% to 50% as compared to the control group. However, it is observed that there is only slight difference in relationship between modulus of elasticity and compressive strength obtained from 100 by 200mm cylinders with CO₂ curing.

• Periodical: Key Engineering Materials (Volume 846)
• Pages: 207-212
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.846.207
• Online since: June 2020
• Authors: Ming Gin Lee*, Yung Chih Wang, Wan Xuan Xiao, Ming Ju Lee, Tuz Yuan Huang
• Keywords: CO₂ Curing, Compressive Strength, Elastic Modulus, High Strength Pervious Concrete

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