Experimental Study on Bubble Deck Slab using Polypropylene balls

  K.R.Dheepan,  S.Saranya,  S.Aswini

Bubble deck slab is an innovatory floor system of reinforced concrete which contains spherical hollows as concrete saving elements. It is a revolutionary method which virtually eliminates all concrete from the middle portion of a floor slab. The structural dead weight is reduced due to the non-performance of any structural function by the middle portion of the slab. High density polypropylene spherical balls replace the in-effective concrete in the center of the slab. Voids in the middle of the slab provide thermal insulation and also leads to 30 to 50% lighter slab. Bubble deck slab allows longer spans between columns supports. In this paper, flexural strength of the slab was determined by two point load test. The main aim of this study is to determine the optimum spacing and diameter of balls to achieve maximum strength. Crack pattern of bubble deck slab is also studied by varying the spacing and diameter of balls.

Keywords- Bubble deck, thermal insulation, lighter slab, flexural strength, crack pattern.

Unique Identification Number - IJEDR1704116
Page Number(s) - 716-721
Pubished in - Volume 5 | Issue 4 | November 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  K.R.Dheepan,  S.Saranya,  S.Aswini,   "Experimental Study on Bubble Deck Slab using Polypropylene balls", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 4, pp.716-721, November 2017, Available at :http://www.ijedr.org/papers/IJEDR1704116.pdf