Title:
Mitigating Thermal Cracking in Massive SCC Slab Foundations for a Wastewater Pumping Station
Author(s):
Moncef L. Nehdi, K. Al Shareef, and H. Kamil Algoneid
Publication:
Concrete International
Volume:
36
Issue:
7
Appears on pages(s):
38-44
Keywords:
finite difference model, insulation, mass concrete, temperature
DOI:
Date:
7/1/2014
Abstract:
The North Jeddah Wastewater Pumping Station and Treatment Plant, Jeddah, Saudi Arabia, is one of the deepest and largest in the world. Three reinforced concrete mat foundations for the pumping station are 42.6 to 44.0 m (140 to 144 ft) in diameter and 5.5 m (18 ft) thick, and positioned 70 m (230 ft) below the ground level. The article discusses the mixture design development for those slab foundations, temperature rise modeling, test mock-up, and full-scale continuous casting of about 24,000 m3 (31,400 yd3) of self-consolidating concrete for this project.