Mechanical properties and abrasion behaviour of concrete containing shredded PET bottle waste as a partial substitution of natural aggregate

By Nabajyoti Saikia, Jorge de Brito. 2014

523 citations recorded by the source corpus.

Abstract The purpose of this work is to evaluate the effects of size and shape of recycled polyethylene terephthalate (PET) aggregate on the fresh and hardened properties, including abrasion resistance, of concrete. 5%, 10% and 15% in volume of natural aggregate in the concrete mixes were replaced by an equal volume of three differently shaped and sized PET-aggregates. The results indicate that the slump of fresh concrete increases slightly with the incorporation of pellet-shaped PET-aggregate. Flakier plastic aggregate sharply decreases the slump of the fresh concrete and it further decreases if the content and size of this type of PET-aggregate increase. The compressive strength, tensile splitting strength, modulus of elasticity and flexural strength of concrete deteriorate due to the incorporation of PET-aggregate and the deterioration of these properties intensifies with increasing content of this aggregate. Differences in size, shape and texture of PET-aggregates change the water to cement ratio as well as the slump of fresh concrete mixes, which ultimately change the mechanical behaviour. Flaky PET-aggregates bridge the two separated concrete pieces and therefore prevent concrete from breaking apart after failure. The abrasion resistance of concrete mixes containing various types of PET-aggregate is better than that of the reference concrete. The abrasion resistance of concrete with incorporation of various types and contents of PET-aggregates can be related to its compressive strength.

Subfields: Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/34ffda2097ec0649154785ef3b159ecc7020fd7b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Building and Construction

1. A. Babafemi
2. Branko Savija
3. S. Paul
4. V. Anggraini
5. Biranchi Narayan Panda
6. M. Tan

In Civil and Structural Engineering

1. Iman M. Nikbin
2. A. Babafemi
3. Branko Savija
4. S. Paul
5. V. Anggraini

Citations in the corpus

• An experimental investigation on the erosion resistance of concrete containing various PET particles percentages against sulfuric acid attack (2015, methodology): “According to this, usage of PET waste in concrete as an aggregate could be one of its extensive usage, has disposal of waste advantages and causes decrease in environmental damages due to less use of natural aggregate resources [4].”
• Engineering Properties of Concrete with Waste Recycled Plastic: A Review (2018, background): “Concrete specimens containing plastic particles (PP) after failure in the tensile splitting strength test (NA—normal aggregate) [43].”