CoolCure converts all concrete from Type I and Type II into a Type IV, a Low Heat concrete. It accomplishes this by focusing on the Phase II reaction mode. This is evidenced by the much higher strength – from the higher conversion to CSH and much lower exotherm – from the significantly reduced calcium hydroxide formation and much lower pH. This higher conversion enables the best utilization of Portland cement in concrete and is viewed by many to be a major step forward in technology. CoolCure accomplishes this by balancing the chemistry. This minimizes by-products and results in a more efficient reaction. While creating a more efficient reaction, more bonds are created that generate more strength. Increases in strength have been realized from 40 to 100%. The heat is reduced by minimizing the calcium hydroxide byproduct generation. Its exotherm is well known in chemistry. The calcium hydroxide is better utilized by creating more CSH (reinforcing bonds) instead of creating troublesome heat.
CURRENTCONCRETE CLIMATE:
Technology utilized in today’s mass pours of concrete, (thermally managed concrete) is where the width of concrete is > 3 foot 10” thick, requries intensive cooling plans and processes that must be employed. This is due to the gross exotherm generated as calcium hydroxide forms and is wetted out during the cure, typically described as the heat of hydration. The exotherm expands the concrete during cure and upon cooling cracks typically form. Traditional cooling techniques employed today in mass pours are unsuccessful at mitigating all of the heat management problems. Exessive energy is utilized for cooling in many pours for bridges, dams, and facilities and concrete often is scraped due to large cracks, as well as exceeding placement and maximum temperature designs. In the flat work concrete world today many problems are also encountered from the heat of hydration. These range from slab curls, thermal cracks, internal stresses and distortion from differential thermal cooling. CoolCure eliminates all of these as well.
Current technology utilizes silica fume and other silicas to increase strength. However, these silicas do not reduce the heat of hydration. Cure retarders are also well known to increase working time/delivery range. However, these do not increase strength or eliminate the excessive heat that causes so many problems today. CoolCure combines these benefits, eliminates the problems and so much more. Reduction of portland usage is also often utilized to reduce exotherm, however, significant time intervals (60-120 days) are required to attain full strength. This delay is incovenient and costly for most applications. Diluents like slag and fly ash are also often used to reduce the portland level. Strength reductions, variable performance, material shortages and unsuccesful thermal plans have resulted in many industry issues.
CoolCure is ideal for large mass pours, and can be implemented in existing cement mixing facilities and trucks. Its ecofriendly composition simply balances the chemical reactions, minimizes the by-product and resultant heat generation, at the same time it increases compressive strength. CoolCure is a low cost admixture solution to an age-old industry problem.
Silicone Solutions
Booth N569
