METHOD OF PRODUCING CONCRETE FROM WASTE MATERIAL AND WASTE-BASED CONCRETE MADE USING SAID METHOD

Abstract

The invention: a procedure to manufacture recycled waste concrete, and the recycled waste concrete itself, which is produced through a simple processing of various types of waste and is suitable for serving as a material to manufacture concrete products widely used in the construction industry, where such products include road bases, strip foundations, bases of houses, noise barriers, traffic barriers for highways/roads, lane separators, sandwich panels, to fill formwork and even, depending on the type of waste used, to build walls. The recycled waste concrete contains cement, water and shredded waste aggregates, such as shredded tyres and/or any shredded plastic waste, and/or any shredded scrap metal, and/or any shredded garden waste, and/or shredded mixed waste, and/or shredded fibre waste, and/or any shredded glass waste, and/or shredded and effectively neutralised municipal waste. As organic binding agent it contains homo-, co- and terpolymers, which can be dissolved and/or dispersed in water and do not contain or produce environmentally hazardous, volatile, organic hydrocarbons, and such polymers are made, for instance, by using vinyl chloride, vinyl esters of saturated, unsaturated and aromatic organic acids, vinyl butyral, ethylene, esters of acrylic acid, styrene, alkyl isocyanates, silanes and siloxanes, which may contain polyvinyl alcohols and/or cellulose ethers and/or other protective colloids. The invention is characterised by being produced by simply mixing the ingredients in the proportions given as listed below: 20-50 volume percent cement, 0.3-10 volume percent organic polymer binding agent, 8-30 volume percent water, and 50-100 volume percent shredded waste aggregate.

Claims

1. Procedure for manufacturing recycled waste concrete defined as mixing cement, water, coarse shredded waste types such as shredded tyres and/or shredded plastic waste, and/or shredded scrap metal, and/or shredded garden waste, and/or shredded mixed waste, and/or cut fibre textile fibre waste, and/or shredded glass waste, and/or shredded municipal waste, polymers as organic binding agent and, in given cases we may also add sand and/or gravel, and/or soil and/or other mineral material to the mixture.

2. Recycled waste concrete defined as manufactured with the process described in point 1, it is concrete produced through a simple processing of various types of waste and is applicable to serve as a material to manufacture concrete products widely used in the construction industry.

Description

[0025] Among other uses, the invention can be effectively produced for example according to the proportions and ingredients described below:

SAMPLE MIXTURE 1

[0026] Mix 250 kg of cement with 180 l of water and 8 kg of organic polymer additive in the concrete mixer. Gradually add 0.8 m3 of shredded tyre aggregate and mix till it becomes a homogenous paste.

SAMPLE MIXTURE 2

[0027] Mix 350 kg of cement with 350 l of water and 15 kg of organic polymer additive in the concrete mixer. Gradually add 0.1 m3 of shredded and treated municipal waste and mix till it becomes a homogenous paste.

SAMPLE MIXTURE 3

[0028] Mix 300 kg of cement with 300 l of water and 16 kg of organic polymer in the concrete mixer. Add 0.1 m3 of shredded glass, 0.1 m3 of dried and shredded garden waste, 0.1 m3 of different types of shredded plastic waste, 0.1 m3 of shredded and treated municipal waste, 0.1 m3 of shredded polyfoam waste, 0.1 m3 of blast-furnace slag and 0.1 m3 of shredded scrap metal and mix till it becomes a homogenous paste.