(steel vs. timber, which affects heat retention). B. Estimation of Restrained Strain ( εrepsilon sub r
Concrete strength at early ages (1–7 days) is critical. C660 advises using the or flexural tensile strength , not compressive strength. A common approximation:
Edge restraint (e.g., a new wall on an old slab) or end restraint (restraining an entire slab from moving) dictates the severity of the stress.
You’ve poured a massive base slab on a cool, still night. By morning, the surface feels fine. But 500mm down, the concrete’s core is brewing a silent crisis—temperatures are climbing past 70°C. In three days, without a single load applied, the structure will have cracked.
(steel vs. timber, which affects heat retention). B. Estimation of Restrained Strain ( εrepsilon sub r
Concrete strength at early ages (1–7 days) is critical. C660 advises using the or flexural tensile strength , not compressive strength. A common approximation: early-age thermal crack control in concrete ciria c660
Edge restraint (e.g., a new wall on an old slab) or end restraint (restraining an entire slab from moving) dictates the severity of the stress. (steel vs
You’ve poured a massive base slab on a cool, still night. By morning, the surface feels fine. But 500mm down, the concrete’s core is brewing a silent crisis—temperatures are climbing past 70°C. In three days, without a single load applied, the structure will have cracked. (steel vs. timber
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