Policy Position

Schlegel T; Shtiza A (2016) Lime carbonation, environmental footprint of seven mortars placed on the European market

Sep 01, 2023

ABSTRACT:

The article presents the evaluation of the environmental footprint of seven mortar formulations, representative of traditional and modern admixtures used in mortar recipes. The kinetics of hardening of air lime containing mortars, known as carbonation, is based on the uptake of carbon dioxide from the ambient air. The presence of water vapour is required in order to enable the reaction between the CO2 and the lime (calcium hydroxide). The results of the extensive literature study made on the fundamentals of the carbonation indicate that carbonation process ranges from 80% up to 90% of lime content when this is part of the formulation. A comparative assessment of the environmental footprint of seven typical mortar formulations has confirmed that: A mortar based solely on air lime has: 1. the lowest carbon footprint due especially to the high amount of CO2 that is sequestrated over a life span of 100 years, 2. the lowest acidification potential, and 3. the lowest eutrophication potential. A mortar including a relatively low amount of cement of type CEM II has: 1. the lowest primary energy consumption; 2. the lowest abiotic depletion potential; 3. the lowest photochemical ozone creation potential and 4. the lowest ozone depletion potential. The five additional mortar formulations have almost similar impacts for the primary energy consumption, the global warming potential, the abiotic depletion potential, the acidification potential, the photochemical ozone creation potential and the eutrophication potential.

Latest News & Events

EuLA's 2024-2029 Manifesto

May 13, 2024
Brussels, Belgium- May 2024, European Lime Association Sets Course for the Future with a Manifesto f...

EuLA Convenes Roundtable Discussion on Lime in Soil Treatment Applications

Mar 14, 2024
Brussels, Belgium – March 14, 2024 – The European Lime Association (EuLA) hosted a succe...

EuLA has signed the Antwerp Declaration

Feb 21, 2024
On 20 Feb 2024, 73 European industry leaders across almost 15 sectors (including EuLA) have presente...

EuLA Co-Signed a Joint-Letter Together With Other 23 Stakeholders

Nov 10, 2023
Urgent Call for Action: Ensure the Net Zero Industry Act CO2 Storage Injection Capacity Target prote...

The European Lime Association Elects New Board President and Board Members

Aug 31, 2023
European Lime Association, the leading advocacy and representative body for the Lime Industry across...

EuLA’s feedback on the European Commission’s public consultation on the Net-Zero Industry Act

Jun 27, 2023
The European Commission published the Net Zero Industry Act (NZIA) as a key element of the Green Dea...
/