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Introduction of Hollow Core Slab (HCS)

A hollow core slab known as a voided slab. It is used in construction of floors especially in multi-story apartment building. 

Hollow Core floor shall be designed in accordance with MS 1064 and appropriate standards. The manufacturer shall prepare and submit the drawings for approval which consist of the general arrangement of the planks, adequacy of the product and sizing prior to manufacture.

This information collected from one of Industrial Building Services (IBS) supplier, Teraju Precast Services Sdn Bhd which state in Dengkil, Selangor Darul Ehsan. 

Specifications of Hollow Core Slab

Specifications
Name	Hollo Core Slab (HCS)
Size	1200 x 6150  x 265
Weight (WT)	2444 Kg
Grade of concrete used	Grade 50 concrete (water/ cement ratio about 0.3)

Projects that using this Hollow Core Slab (HCS):

-        Kemudahan Asas (Blok Pentadbiran & Jeti) di Pulau Jarak, Perak.

-        KK3 Air Molek, Melaka

-        Politeknik Besut, Terengganu

Design of Hollow Core Slab (HCS)

Top view

Side view

   

Front view

Overview

Installation of Hollow Core Slab (HCS)

1. Installation Tolerance:-

Width of  Joints	10 mm
Jog of soffits	9 mm
Level at support	10 mm

2. Method statement 

Direct installation without using lifting beam and top lift clamps can be carried out if the lifting of slabis below 6 m. If the height is above 6 m, installation of HCS should required lifting beam and top lift clamps. 

Installation video of HCS 

*** The HCS used refers to the Hollow Core Slab