Embedded in concrete, across and along the joint, flexible waterstops prevent leaks in the joints of concrete structures where one side is subject to hydrostatic pressure. Flexible waterstops come in a variety of profiles and material types. To choose a waterstop suitable for your joint sealing needs, it's important to know the capabilities of various systems.
Sheet membranes have many benefits
A joint English and French project involved boring three tunnels through 31 miles of a chalk marl formation to link the cities of Dover and Calais. Two tunnels will accommodate high-speed trains; the third will be a service tunnel. The tunnels are lined with precast concrete ring segments. The bases for the tunnel rail bed and two sidewalks (one for evacuation and one for maintenance) are paved with concrete.
The Vegas World Stratosphere Tower, a reinforced concrete observation tower soaring 1,102 feet over Las Vegas is the tallest structure of its kind in the US.
Building a 243,000-square-foot reinforced concrete warehouse floor to meet specified pour widths of 56 feet and floor flatness and levelness requirements of FF35 and FL25 is a challenge for any concrete contractor. Meidling Concrete Inc. had to build such a floor for a Shopko Stores Inc. distribution center in Boise, Idaho. But complicating the job were cold temperatures, a completion deadline of 1 month, and specifications for shrinkage-compensating concrete and surface-applied traprock.
