Enhanced recyclability of waste plastics for waterproof cementitious composites with polymer-nanosilica hybrids
نویسندگان
چکیده
Waste plastics may be an environmentally friendly alternative to natural aggregates for concrete manufacture. However, the inferior bond strength between waste plastic and cement matrix greatly limits uses of engineering designs applications. Herein, ethylene–vinyl acetate (EVA) nanosilica (nS) were jointly employed enhance matrix-aggregate interactions in cementitious composites with recycled (RWPs). Waterproof properties EVA nS hybrids measured. A non-destructive test using micro-focus X-ray computed tomography (µ-XCT) contrast enhancing technique followed by microstructural tests (SEM/BSE EDS) conducted in-situ trace liquid migration composite specimens. The single addition into increased porosity depressed compressive strength, but decreased water sorptivity nearly 50 %. organic–inorganic (EVA-nS) enhanced recycling potential terms mitigated reduction improved waterproofing performance. coupled polymerization nanofilling effects resolved account recyclability improvement. findings would shed light on design fabrication materials towards large scale methods technologies plastics.
منابع مشابه
Polymer-Cement Composites Containing Waste Perlite Powder
Polymer-cement composites (PCCs) are materials in which the polymer and mineral binder create an interpenetrating network and co-operate, significantly improving the performance of the material. On the other hand, the need for the utilization of waste materials is a demand of sustainable construction. Various mineral powders, such as fly ash or blast-furnace slag, are successfully used for the ...
متن کاملEngineered Cementitious Composites
This paper overviews Engineered Cementitious Composites (ECC) as an emerging construction material. Emphasis is placed on the accumulated knowledge on durability, safety, and sustainability of reinforced ECC (R/ECC) structures, recognizing that the concrete of the future must meet these characteristics. In light of recent and future full-scale field applications of ECC, the limited studies on l...
متن کاملCementitious Composites Engineered with Embedded Carbon Nanotube Thin Films for Enhanced Sensing Performance
Cementitious composites such as concrete pavements are susceptible to different damage modes, which are primarily caused by repeated loading and long-term deterioration. There is even greater concern that damage could worsen and occur more frequently with the use of heavier vehicles or new aircraft carrying greater payloads. Thus, the objective of this research is to engineer cementitious compo...
متن کاملGeneral Design Assumptions for Engineered Cementitious Composites
The use of Engineered Cementitious Composites (ECC) for structural design requires a number of assumptions of the material, some of which can be drastically different from those suitable for normal concrete and tension-softening fiber reinforced concrete. This contribution focuses on design assumptions of the constitutive models of ECC in tension and compression. Specifically, while the tensile...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials & Design
سال: 2022
ISSN: ['1873-4197', '0264-1275']
DOI: https://doi.org/10.1016/j.matdes.2022.111338