CarbonCure's effect on durability of concrete
Carbon dioxide was investigated for use as a beneficial admixture to concrete as it was truck mixed. Comparisons of the fresh, hardened and durability properties were made between a reference concrete batch, a batch that contained a conventional accelerating admixture, and three batches subjected to a carbon dioxide addition. The following conclusion were made:
- The optimum dose of carbon dioxide was found to reduce the time to initial set by 40% and increase the one and three day compressive strengths by 14% and 10% respectively.
- Concrete durability test results indicated that the carbon dioxide process did not compromise the expected durability performance of the treated concrete.
- Carbon dioxide is a viable admixture to improve concrete performance.