GX & Decarbonization Research

Siva Shankari Subbaraj Velmurugan, D. S. S.

Geopolymers are eco-friendly alternatives to ordinary Portland cement. This study evaluates the stability of alkali activator solutions with silica modulus 0.8, 1.2, and 1.4 over one year. Solutions with modulus 0.8 and 1.4 showed long-term…

Makram El Bachawati, Yassine Elias Belarbi, Henri El Zakhem +1

This review analyzes over 50 LCAs of bio-based materials, showing that methodological choices (attributional vs. consequential modeling, biogenic carbon timing, LUC/ILUC, allocation) drive variability. Wood reduces GWP by 30-70% in building…

By Marjan Ilbeigi, Mohamed Alnejem, Mozhgan Karimi +4

This study proposes an integrated framework combining Lifecycle Assessment (LCA), Circular Economy (CE) evaluation, Multi-Criteria Decision Analysis (MCDA), and Artificial Neural Network (ANN) modeling to assess bio-based retrofitting strat…

R. Haigh

This study evaluates three municipal solid waste materials (cardboard fibers, recycled HDPE, and textile fibers) in concrete with 10% cement replacement, assessing mechanical strength and conducting life cycle assessment. Surrogate-based op…

M. Khubaib, Z. Asghar

This systematic review examines how Structural Health Monitoring (SHM) integrates with sustainability indicators for resilient and green infrastructure. It traces the evolution of SHM technologies and identifies links to energy performance,…

Israt Jahan Reana, J. Oti, B. Adeleke

This study investigates partial replacement of coarse aggregates with recycled plastic waste in concrete. Up to 15% replacement maintains strength, while higher levels reduce it. Workability improves, and low replacement reduces water absor…

M. Haverbeke, Y. Decorte, Marijke Steeman

This study assesses the environmental impact of seven non-residential and multi-family buildings in Belgium via LCA. Results are expressed in CO2-eq and aggregated points, with operational impact accounting for up to 79%. Floors and walls d…

Norzahrin Abd Majid, Muhammad Rizwan Md Rasid, M. Arshad +3

This study examines the effects of carbonic acid as a water replacement in lightweight foamed concrete blocks, focusing on density and thermal conductivity. Moderate concentrations of carbonic acid promote carbonate crystal growth, reducing…

A. Nuryawan, R. Karolina, Muhammad Andhika Ramadhan

This study proposes hybrid paving blocks by adding plastic and wood waste to traditional cement-sand mixtures. The approach recycles resistant plastics, stores carbon in wood particles, and contributes to long-term climate mitigation. Physi…

Amitha Varghese, Martin Anda, Shri Rai +1

As demand for critical minerals grows for low-carbon technologies, mine tailings waste becomes a concern. This paper proposes a database to support geopolymer cement production using mine tailings, aiming to reduce CO2 emissions from cement…

R. Ries, M. Roberts, Vanessa Gomes da Silva +1

This paper reviews current standards for life cycle assessment (LCA) in the built environment to support net-zero carbon goals. It identifies gaps such as the need for harmonized Product Category Rules and Environmental Product Declarations…

Larissa Vieira Rocha, M. T. Barraza, Carlos Maurício Fontes Vieira +2

This mini-review covers acid-activated geopolymers as low-carbon binders to replace Portland cement, reducing CO2 emissions from construction. It explains dissolution and polycondensation mechanisms, compares acid vs alkaline activation, an…

Maaz Nasir, Ali S. A. Saleem, Salman Malik +5

This study developed eco-friendly concrete blocks by partially replacing cement with waste marble powder (WMP) and rice husk ash (RHA) at 15% and 30%. Results showed that 15% WMP mix increased compressive strength by 25% and tensile strengt…

J. Patel, C. Thakkar, Er Ranveer Singh Sekhavat +1

This review examines biochar as a supplementary cementitious material for decarbonizing construction. Biochar can be carbon-negative and at optimal replacement (1-5% by cement weight) improves compressive strength up to 18.5% through intern…

Xuejing Zhang, Mingyuan Zhou, Yuan Mei +1

This study investigates a ternary solid waste system (coal gangue, steel slag, gasification slag) for alkali-activated cementitious materials, achieving 7.653 MPa compressive strength. It offers a low-carbon alternative to conventional ceme…

N. Parveen

This review examines high-performance concrete incorporating Ground Granulated Blast Furnace Slag and Fly Ash. Results show enhanced strength, reduced heat of hydration, improved resistance to sulfates and chlorides, and lower carbon emissi…

Hongrui Chen, L. Präger, J. Woytowicz +1

This study proposes an integrated method combining Urban Mining Index (UMI) and Life Cycle Assessment (LCA) to simultaneously evaluate building recyclability and Global Warming Potential (GWP). Using the NAWAREUM museum in Germany as a case…

G. Kalpana, Chappidi Hanumantha Rao, M. Adamu +2

This paper applies a multi-criteria decision-making approach with uncertainty quantification to optimize the composition of geopolymer composites based on calcium carbide residue, a waste material. It contributes to low-carbon construction …

S. Bigiotti, Carlo Costantino, Alvaro Marucci

This paper proposes substituting steel prefabricated systems with timber for livestock buildings, using a poultry house case study in Italy. Life Cycle Assessment and cost analysis show timber reduces Global Warming Potential by 29% (up to …

I. Pundienė, J. Pranckevičienė, A. Mažeikienė +4

This pilot study synthesizes lightweight geopolymers from wood biomass ash for phosphorus removal from wastewater. Porous aggregates (PA) and air-entraining additives (AEA) produce geopolymers with densities 985-1400 kg/m3, compressive stre…