Recycling and recovery of PE‐PP‐PET‐based fiber polymeric wastes as aggregate replacement in lightweight mortar: Evaluation of environmental friendly application

Abstract

Waste polymeric material, classified as secondary raw material, mainly consisting of selected polyolefins, PE and PP, and PET has brought great pressure on the environment, due to the large quantities produced by the urban lifestyles and economic activity. This research evaluated the possibility to reuse the plastic waste as aggregates in hydraulic lime based composite mortars. The composite mortars were prepared by replacing the conventional aggregate, silica sand, with 10, 15, and 20 % of fiber polymeric waste in a mixture of lime and water. The chemico‐physical interaction between the recycled plastic aggregates and the lime matrix was examined through FTIR, X‐Ray diffraction and morphological analyses. The effect of fiber polymeric waste on the degree of hydration and mechanical performances of the produced composites was also evaluated. Experimental results show that the good chemical interaction between the fiber plastic aggregates and the mortar induced an improvement of ductility of mortar composites. However, the plastic waste limited the degree of hydration of the hydraulic lime, due to the organic characterof the plastic as opposed to the inorganic character of lime. © 2014 American Institute of Chemical Engineers Environ Prog, 33: 1445–1451, 2014

Composite Properties of Non-Cement Blended Fiber Composites without Alkali Activator

“…We observed a positive correlation between the proportion of fibers and compressive strength, due perhaps to suppressed crack formation under axial loading. The inclusion of fibers in the non-cement blended composites significantly increased the compressive strength, particularly in S50-F2 and S40-F2 (30% to 40% higher than the S50) [26]. This also had indirect effects on the toughness and mechanical properties of the composites.…”

Hybrid geopolymeric foams with diatomite addition: Effect on chemico-physical properties

“…The development of high-performance thermal and acoustic insulators is one of the major issues in the field of high temperature processing and equipment as well as in the building sector. In particular, thermal and acoustic insulation performance can be tuned either by using suitable insulating additions, such as plastic aggregate, [1][2][3] or by tailoring porosity. Creation of porosity is the main task in the development of new insulating materials.…”

Fiber-reinforced lime-based mortars: Effect of zeolite addition

“…The evaluation of the hydration and carbonation degree of each mortar was determined respectively from the Ca(OH) 2 and CaCO 3 content of the hydrated composites and a reference mortar (REF) by ignition method with thermogravimetric analysis [22,23], using a Netzsch STA 409 PCLuxx. The samples were heated on alumina pans from 20 to 1000°C with heating rate of 10°C/min under nitrogen atmosphere.…”