Plasphalt

7 waste products which are amazing building materials This is the age of environmental awareness and constant efforts are being made towards a more sustainable future. It goes without saying that waste management is an important part of the whole process. Every year human settlements produce 1.3bn tonnes (approx.) of solid waste products. Recycling is on the rise to ensure a greener planet, well supplied with natural resources. This brings us to 7 waste products which can be effectively recycled as materials for construction. Newspaper wood: Originating in Norway, where over 1m tonnes of paper and cardboard are recycled every year, the wood is created by rolling up the paper and solvent-free glue to create something not dissimilar to a log, then chopping it into usable planks. The wood is then sealed to make it waterproof and flame-retardant and used to build anything which can be normally built with wood. Image source: vij5 Nappy roofing Special recycling plants separate out the polymers from the sanitary wastes, like diapers and pads, and these polymers can then be used to create fiber-based construction materials like the tiles in the image below. Image source: youtube Recy blocks These brick-like structures are made from old plastic bags, which are usually very difficult to recycle in any other way. Recycled bags or plastic packaging are placed in the heat to be moulded together into blocks. These are too lightweight to act as load-bearing walls but can be used to divide rooms or outdoor areas. Recy blocks are usually colourful and can be decorated with pressed flowers and other eco-accouterment. Image source: Gert de Mulder Blood brick Since a lot of animal blood gets wasted, especially in societies without industrialised food production systems, it can be considered as a waste product. Blood is one of the strongest bio-adhesives as it contains high levels of protein. Architectural graduate Jack Munro realized this substance could be used as a building material in underdeveloped countries. However, the controversial material is definitely a red flag for environmentalists. Image source: New Atlas Bottle bricks Lots of companies now make bottles in cuboid or other tessellated shapes, to make them easier to transport. But the practice of doing so to create construction materials actually started with beer company Heineken in the 1960s. The company landed on a new, brick-shaped design for the bottle. In Thailand, there is a 20-building temple complex that’s made of more than 1.5 million Heineken and Chang beer bottles giving quite a unique look to this place of worship. Image source: CN Traveller Mushroom walls Mushroom roots can be used to make mushroom based building materials that are stronger than concrete, have more insulating power than fiberglass, and are completely compostable. If placed in a mould, these organic matters grow to the desired shape within a couple of days, and can then be stopped using a hot oven. This is particularly useful because traditional insulating and packing materials tend to be non-biodegradable, or, in the case of asbestos, poisonous. Image source: PlanetSave Plasphalt Plasphalt is made up of grains of plastic produced from unsorted plastic waste, which replaces the sand and gravel traditionally used in asphalt production. In testing, it was found that plasphalt roads were far less vulnerable to wear and tear than traditional asphalt, because the asphalt emulsion bonded better with the plastic than with gravel or sand. Image source: TEWA

Plasphalt

Building Blocks from the Landfill