STRENGTH AND SHRINKAGE PROPERTIES OF SELF-COMPACTING CONCRETES INCORPORATING WASTE PVC DUST

Abstract

The aim of this study is to investigate the effects of using polyvinyl chloride dust on the compressive strength and shrinkage behavior of self-compacting concrete. Self-compacting concrete mixtures with polyvinyl chloride dust content were designed with a total binder content of 550 kg/m³ and a water-to-binder (w/b) ratio of 0.35. Also fly ash content of the concrete batch was 110 kg/m³ . Polyvinyl chloride dust was  added in place of Portland cement at replacement levels of 0%, 5%, 10%, 15%, 20%, and 25% by weight in all mixtures. Six mixtures (one is selected as control mixture) were used in the study. According to test results, the compressive strength of the concrete samples  significantly decrease with increasing polyvinyl chloride dust content. Dry shrinkage decreses when the percentage of polyvinyl chloride dust in the self-compacting concrete mixture increases. Similar to the drying shrinkage test results, self-compacting concrete incorporated with   polyvinyl chloride dust exhibite lower weight loss in comparison with the control mixture. Also restrained shrinkage rate  of  self-compacting concrete specimen decreases when the percentages of polyvinyl chloride dust  in specimen increse.

Keywords

• Compressive strength,dry shrinkage,restrained shrinkage,polyvinyl chloride dust

References

1. [1] Seshaiah B, Lalitha K. Experimental Study on the Performance of Concrete with Polymer (PVC) as Filler Material International Journal of Research Sciences and Advanced Engineering 2017; 2 (18); 74-80.
2. [2] Senhadji Y, Escadeillas G, Benosman AS, Mouli M, Khelafi H, Ould Kaci S. Effect of incorporating PVC waste as aggregate on the physical, mechanical, and chloride ion penetration behavior of concrete, J Adhes. Sci. Technol. 2015; 29: 625-640.
3. [3] Ozawa K, Maekawa K, Kunishima H, Okamura H. Performance of Concrete Based on the Durability Design of Concrete Structures. Proce. the second East-Asia-Pacific Conference on Structural Engineering and Construction 1989; 1: 445-456.
4. [4] Khayat KH, Bickley J, Lessard M. Performance of self-consolidating concrete for casting basement and foundation walls. ACI Mater J 2000; 97(3):374–380. [5] ASTM C39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens (1998). ASTM International.
5. [6] ASTM International, ASTM C157, Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete, Annual Book of ASTM Standards, ASTM International, West Conshohocken, Pa, USA, 2007.
6. [7] Wiegrink K, Marikunte S, Shah SP. Shrinkage cracking of high-strength concrete, ACI Materials Journal 1996;93: 409–415.
7. [8] Shah S, Karaguler PME, Sarigaphuti M. Effects of shrinkage-reducing admixtures on restrained shrinkage cracking of concrete. ACI Materials Journal 1992; 89,289–295.
8. [9] Ropke JC, Concrete problems: causes, and cures. Illustrated ed. Michigan: McGraw-Hill Inc., 1982.

9. [10] Neville A. Concrete Neville’s Insights and Issues, Thomas Telford Publishing, 2006.
10. [11] Atmaca N, Abbas ML, Atmaca A. Effects of Nano-Silica on the Gas Permeability, Durability and Mechanical Properties of High-Strength Lightweight Concrete. Construction & Building Materials 2017; 147: 17–26.