Manhattan 1 Residence by SAMANA

About the Project

Manhattan 1 Residence is a luxury residential building developed in Dubai by SAMANA, one of the top five developers in the UAE. The project is located in an area with a high groundwater table, so the substructure needed effective protection against water ingress. Baumerk Crystal PW 25 crystalline admixture was specified and added to the concrete mix to protect the structure from within. Baumerk Swellband A waterstop was installed at horizontal and vertical construction joints to complete the waterproofing system.

The waterproofing performance of this project is built on the properties of Baumerk Crystal PW 25. Crystal PW 25 is a hydrophilic crystalline waterproofing admixture that reacts with cement and water to start a catalytic process, forming a protective crystalline network inside the concrete's pores, capillaries and cracks and significantly reducing permeability. As a Permeability Reducing Admixture for Hydrostatic Conditions (PRAH), it protects concrete against both positive and negative water pressure of up to 14 bar. Because it becomes an integral part of the concrete, protection continues even if the surface is damaged, and its long-term reactivity lets hairline cracks of up to 0.5 mm self-seal when they come into contact with water. Swellband A is an acrylic polymer-based swelling waterstop that expands in a controlled way on contact with water, so it does not swell prematurely when cast into concrete.