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Potential pathway for recycling of the paper mill sludge compost for brick making
- Source :
- Construction and Building Materials
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- This study's focus was to develop a potential pathway for recycling of the paper mill sludge compost (PMSC) in brick making. Composting reduces the paper mill sludge (PMS) moisture content considerably and shredding becomes easier. The addition of PMSC leads to an increase of porosities in bricks and makes them lighter, besides delivering energy to the firing process from burning organics. Lighter construction materials help minimize construction outlay by reducing labour and transportation costs and lesser expense on foundation construction. The variability in the experimental data and the brick properties were investigated for two types of soils, typical in the brick industry of India (alluvial and laterite soil), blended with PMSC in five mix ratios (0%, 5%, 10%, 15% and 20%). The samples of oven-dried bricks were fired at two different temperatures (850 and 900 °C) in an electrically operated muffle furnace representing typical conditions of a brick kiln. Various properties of bricks were analyzed which included linear shrinkage, bulk density, water absorption and compressive strength. Conclusions were drawn based on these properties. It was found that the addition of PMSC to the alluvial and laterite soil by up to 10% weight yield mechanical properties of fired bricks compliant with the relevant Indian and ASTM codes. Toxicity characteristic leaching procedure (TCLP) tests showed that PMSC incorporated fired bricks are safe to use in regular applications as non-load-bearing and infill walls. This study is timely in light of the European Green Deal putting focus on circular economy. Besides, it fulfills the objective of UN sustainable development goals (SDG). © 2021 Elsevier Ltd
- Subjects :
- Laterite soil
Absorption of water
0211 other engineering and technologies
020101 civil engineering
02 engineering and technology
engineering.material
0201 civil engineering
12. Responsible consumption
021105 building & construction
11. Sustainability
Laterite
General Materials Science
Recycling
Muffle furnace
Water content
Civil and Structural Engineering
Brick
Toxicity characteristic leaching procedure
Waste management
business.industry
Paper mill sludge compost
Paper mill
Building and Construction
Alluvial soil
Waste-to-brick
6. Clean water
Compressive strength
Sustainability
13. Climate action
engineering
Environmental science
Fired bricks
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Construction and Building Materials
- Accession number :
- edsair.doi.dedup.....cdc090569a59a9c8876506f131deae20