The initial phase of construction of the 99 West Paces Ferry project in Atlanta, Georgia (USA) was completed in December 2021 as its first residents moved in. PENETRON ADMIX SB was specified as a reliable concrete waterproofing solution that adds substantial durability to the development’s below-grade structures.
Designed by Ziegler Cooper Architects, the $271 million 99 West Paces Ferry project is one of the largest mixed-use developments ever realized in the upscale Buckhead Village of Atlanta. It comprises over 500 multifamily residential apartments and over 16,000 ft2 of commercial space. The first phase of construction saw the completion of 339 multifamily units and 7,600 ft2 of commercial space along West Paces Ferry Road, a major artery in the Buckhead area. The second phase of the project, set for completion in 2023, focuses on the frontage along Paces Ferry Place and will add another 186 multifamily units.
Ensuring Long-Term Durability
“With a project of this size, the engineers at JLB Partners Southeast emphasized the need for long-term durability of all the below-grade structures,” explains Christopher Chen, Director of The Penetron Group.
The high groundwater level at the construction site required a robust waterproofing solution for the below-grade concrete structures. Thomas Concrete, the project’s ready-mix concrete supplier, added PENETRON ADMIX SB to the concrete mix for the foundation slabs, the below-grade perimeter walls, and the elevator pits. PENECRETE MORTAR, a crystalline waterproofing mortar, was used to seal the tie-holes along the perimeter walls and elevator pits.
Efficient and Economical
Added during the batching phase and unaffected by climactic conditions, PENETRON ADMIX SB is one of the world’s most efficient and economic permeability-reducing concrete admixtures for hydrostatic conditions (PRAH), as defined by the American Concrete Institute (ACI). PENETRON ADMIX SB-treated concrete is protected against a range of factors that cause concrete deterioration: freeze-thaw cycles, corrosion, and alkali silica reactions (ASR), all while blocking moisture penetration caused by hydrostatic pressure.
"Thanks to our close working relationship with the ready-mix concrete supplier, we were able to quickly implement an optimal concrete waterproofing solution,” adds Christopher Chen.