Brazil: A new study has found that ready-mix concrete is more cost-effective than concrete mixed on construction sites in Brazil. Ready-mix concrete costs US$69.2 – 118/m³, while mix-on-site concrete costs US$54.6 – 100/m³. However, the findings showed that costs arising from material loss, mix design errors, hardened leftovers, increased reworking times and reduced productivity when mixing concrete on site more than exceeded the difference in prices for projects above 20m³ in total concrete consumption.
In one investigation completed under the study, builders poured a 27m³ slab of concrete in one hour using ready-mixed concrete, and another in 12 hours using mix-on-site concrete, Petróleo e Gás News has reported.
