Drilling Holes Hollow Core Floor Slab

Cast in place composite concrete topping is highly recommended to provide a smooth level floor surface that serves as a horizontal diaphragm when properly reinforced.

Drilling holes hollow core floor slab. The slab with the new opening should be analyzed in accordance with aci 318 08 2 section 13 4 1. The area of concrete around the strand must be avoided altogether. The cables are drawn to a design tens. Liptak contracting llc is an independent contractor who specializes solely in the drilling of weep holes into precast hollow core concrete slabs on commercial construction projects for water moisture relief of trapped water that accumulates within the hollow voids of the slab during the construction process.

Soffits can be plastered using a suitable bonding agent. Ontinually monitor other trades that are doing core drilling in the plank. Light points and wiring. These slabs are supported by cables embedded in the webs of the slabs under tension hence the name prestressed concrete.

Verify that every penetration is actually needed prior to cutting. It is recommended that holes of less than 100mm diameter are drilled on site on the centerline of cores. An information bulletin ib95 drilling cutting or forming holes in suspended concrete floor slabs published by ccanz is available on the stahlton website. The fitting of down lights into hollow core slabs is fast becoming the preferred lighting solution thanks to the increasing use of precast hollow core concrete floor slabs and improved lighting technology which have led to smaller lights and enhanced performance.

Two things need to be addressed. A series of core drills may inadvertently cut consecutive. Ceiling finishes a number of ceiling finishing options are suitable for hollowcore units. Stahlton hollowcore units can have penetrations core drilled through the unit in specific locations.

You can use that as a guide. The excellent load bearing capacity. Penetrations can be cored or cut through the hollow core plank in the field after installation. Hollow core the hollow core slab has a variety of uses including floors and roofs for buildings and parking garages decks for piers and lagging for retaining walls.

The easiest way to tell whether a slab or beam is post tensioned is to look at the slab edge or beam edge for the grouted anchorage pockets. Just to give you an idea drilling a 1 inch hole in a 4 inch concrete slab using a hammer drill would probably take around 60 seconds. Filling in of unnecessary holes can be.