Guide for increasing the share of recycled aggregate
Since 2020, the use of recycled aggregates in public and private construction projects in Catalonia must be at least 5% by weight of the total prescription of aggregates. This guide explains how to apply this rule, how to document it and how to justify the cases where the project specificities are incompatible with the aggregates derived from construction and demolition waste.
Development of a European Evaluation Document (EAD) for innovative fibre boards
A European H2020 project is developing a new medium density fibreboard (MDF) free of semi-volatile organic compounds (SVOC) using industrial cellulosic waste as raw material. A product of this nature is outside the scope of the harmonized standards that regulate MDF boards, so a specific evaluation procedure will be required in order to bring it to the market with the required CE mark.
Upgrade of ITeC’s database with Recycled Content Products
There is a demand for construction products that are manufactured from recycled materials, which often does not materialize in practice because they have not been explicitly specified in the project stage. To overcome this obstacle, ITeC's database of construction elements has been expanded to include a series of products in which recycled plastic, recycled rubber (from out of use tires), steel slag or recycled glass can be found in its composition. Each of them has its price, technical specs and environmental data, so prescribers can use them in the project as easily as the rest of the products of the database.
Bloc-Replastic project: concrete blocks with plastic waste
Its objective is to obtain a prototype of a precast block made of concrete containing plastic waste that, due to its cost, aesthetics and technical performance, can be advantageously positioned in the market. The project covers the selection of the optimal type of waste, the detailed definition of the industrial manufacturing process, the testing program and the certification of the final product.
Evaluation of concrete additions obtained from the incineration of municipal solid waste
Design of a protocol for assessing the validity of a type II addition manufactured with treated ashes from municipal waste incinerators. It allows to quantify the mechanical, chemical and durability performance that can be expected from different combinations of this addition with CEM II and CEM IV cements that produce concrete mixes as per the EN-206 standard, and also mortars and grouts.
Introduction of recycled materials in the database of a public developer
A public developer uses a construction database that has been prepared by ITeC and has requested an extended version of the database that must include recycled building materials and materials that have been manufactured with a part of recycled raw material. Like the rest of the materials in the database, the new additions have reference prices, spec sheets and environmental data, so that they can be added effortlessly to any new building project.
Feasibility of replacing natural aggregates with recycled aggregates
The study analyzes whether it would be plausible to cover 5% of the total aggregate consumption in construction, urbanization and civil engineering works with recycled aggregate. To do this, it has been necessary to estimate how much aggregate is required in a sample of projects and to identify in which elements it could be replaced by recycled aggregate without breaking any construction codes. Once the viability has been confirmed on the demand side, it has also been verified on the offer side.
Addition of the "Recycled Content" parameter to the BEDEC database
The BEDEC database of construction products already informed of environmental data such as energy consumed in manufacture, CO2 emissions and packaging waste, and the next addition has been the percentage of recycled content. The purpose is to highlight those products that have been manufactured from recycled materials, as an incentive for their prescription. A distinction is made between the percentage recycled in pre-consumption and in post-consumption.
Use of steel slag as aggregate in road works
Before accepting a steel slag aggregate for a civil engineering project, the developers want to verify whether it is valid to use it as gravel and type-2 selected soil according to the Spanish Road Building Code. It has been checked for compliance with the national regulations of civil works (particle size and geometry, water absorption and wear resistance, SO3 content, quality of fines, Los Angeles coefficient) and the requirements for hazardous substances (leaching of heavy metals)
Mastic asphalt (Gussasphalt) with crumb rubber from end-of-life tires
Experimental test campaign to measure the effects of adding recycled rubber dust to the mix for manufacturing mastic asphalt. Since mastic asphalt is not just a material for building wearing surfaces but is also used in waterproofing applications, special care has been taken to assess how the change in composition affects its reaction to water and water vapour.