Hydration temperatures in large high-strength concrete columns incorporating slag
Source abstract
Abstract
Abstract This paper presents the results of an investigation on the use of slag-blended cements in the production of high-strength concrete (HSC). The production of HSC requires high cement contents. Slag replacement can assist in reducing high hydration temperatures, which is a problem in concrete with high cement contents. This investigation studied the hydration temperatures of concretes with nominal strengths of 100, 80, 60 and 40 MPa. The improvements in hydration temperatures in the concretes were sought by replacing part of the ordinary Portland cement in the binder with slag. Slag replacement levels studied were of 70%, 50%, 30% and 0%. A ternary blend, containing Portland cement, slag and silica fume was also investigated in one of the columns. The study was based on square columns of size 800×800 mm in cross-section and 1200 mm high. Altogether, results of 11 columns are reported. The results indicate significant reductions in net temperature rise and thermal gradients can be achieved by the use of slag replacement in HSCs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Concrete Properties and Behavior
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References (19)
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