Durability Studies on SCC Replacing Sand Partially with HIPS Granules
CH. Bala Rama Krishna1, P. Jagadeesh2
1CH. Bala Rama Krishna, Department of Civil Engineering, Vellore Institute of Technology, Vellore (Tamil Nadu), India.
2P.Jagadeesh, Department of Civil Engineering, Vellore Institute of Technology, Vellore (Tamil Nadu), India.
Manuscript received on 10 January 2019 | Revised Manuscript received on 20 January 2019 | Manuscript Published on 30 January 2019 | PP: 72-75 | Volume-8 Issue-2S2, January 2019 | Retrieval Number: 100.1/ijeat.B10160182S219/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This investigation is carried out on SelfCompacting Concrete (SCC) replacing sand partially with plastic waste granules of High impact polystyrene (HIPS). Fly ash content of 30% is replaced for cement in the binder content of 497 kg/m3 and HIPS granules with varying percentages from 0- 40% are replaced for sand in SCC. Water-to-cementitious content ratio of 0.36 is used in all SCC mixtures. Durability analysis on SCC specimens is conducted by water absorption and sorptivity tests at 28 and 90 days curing age. Fly ash fills the pores at interfacial transition zone and sufficient compaction reduced. So, low volume HIPS replacement up to 30% in SCC has lower porosity. Values are linearly declined up to 30% in the both tests at all curing ages. The smooth surface and spherical shape of HIPS granules leads to weak bonding at cement paste and aggregate interface. Thus porosity increases at high volume replacement starting from 40% due to the less packing density in the concrete matrix. Both water absorption and sorptivity values are higher at 40% replacement compared to SCC mixes contained 0-30% HIPS. E-waste HIPS can be incorporated in concrete to solve issues related to environmental pollution and SCC designed with HIPS up to 30% is more durable.
Keywords: Durable, Electronic Plastic Waste, Self-Compacting Concrete, Sorptivity, Water Absorption.
Scope of the Article: Materials and Durability