Impact of climate on mockup for mass concrete incorporating pozzolans.

Highlights • Impact of climate effects on mockup for mass concrete incorporating pozzolans. • Temperature differential control plan must be less than 25 °C (45 °F). • 1-in. XPS board could enhance insolation effects on mass concrete protection. • Temperature-time gradient has two categories with growth and loss rate. • TDCP included quaternary warning lights executed at jobsite for 2.5 years. Abstract Two mockup blocks were used to construct a temperature differential control plan (TDCP) for temperature differentials less than 25 °C (45 °F) and the climate effect was evaluated. The first block was without insulation and the second with a blanket and 25 mm (1-in) extruded polystyrene (XPS) board. The mixtures were of cement, slag and fly ash, and seven sensors were used. The test results showed that on a rainy day, the maximum temperature differential was greater than 30.9 °C (55.6 °F) without insulation. With a blanket and XPS board, the maximum temperature differential could be dramatically reduced to below 19 °C (34.2 °F), and enhanced the effects on mass concrete protection. TDCP had been used suitably and expediently in the construction duration at jobsite for two and half years long. [ABSTRACT FROM AUTHOR]