Shima Pilehvar

• Safhi, Amine el Mahdi; Mejjad, Nezha; Ghribi, Mounir; Pilehvar, Shima & Kioumarsi, Mahdi (2026). Benchmarking sustainable blue economy in Canada and Norway: A comparative KPI-based assessment. Marine Policy. ISSN 0308-597X. 195. doi: 10.1016/j.marpol.2026.107298. Full text in Research Archive
• Driouich, Anas; Goudarzi, Ahmad; Santoro, Francesco; Dalconi, Maria Chiara; Dau, Massimo & Bettanini, Carlo [Show all 8 contributors for this article] (2026). Role of amorphous phase, temperature fluctuations, and vacuum, on the performance of alkali-activated lunar regolith simulants. Materials and Structures. ISSN 1359-5997. 59(7). doi: 10.1617/s11527-026-03243-w. Full text in Research Archive
• Aliyari, Mostafa; Safhi, Amine el Mahdi; Pilehvar, Shima; Nehdi, Moncef L. & Kioumarsi, Mahdi (2026). High-fidelity data-driven multi-objective design of class F fly ash–geopolymer concrete. Powder Technology. ISSN 0032-5910. 469(2). doi: 10.1016/j.powtec.2025.121900. Full text in Research Archive Show summary

  Class F fly-ash geopolymers (FA-GPCs) can slash the CO₂ burden of structural concrete, yet their mix design still relies on costly trial-and-error. The first geometry-normalized database of FA-only geopolymer concretes was assembled—799 mixes from 67 publications, every reported strength converted to the 150 Ø 300 mm cylinder equivalent—and interrogate it with a three-scenario, data-availability workflow. Eighteen machine-, deep- and hybrid-learning models are benchmarked; a Voting ensemble predicts 7–28 days compressive strength with an R2 of 0.962, while an LSTM + XGBoost hybrid forecasts mix-specific CO₂ footprints at an R2 of 0.996. SHAP analysis reveals that the Si/Al ratio and initial curing temperature dominate early-age strength, whereas total Na₂SiO₃/NaOH and Na₂O/binder ratios control embodied carbon, underscoring an inherent strength–footprint trade-off. These surrogate models feed a multi-objective optimizer (NSGA-II, confirmed superior to NSGA-III and MOEA/D) that explores the 1st–99th-percentile bounds of 11 mix variables. The resulting Pareto fronts deliver eco-efficient recipes reaching 65 MPa at ≤30 kg CO₂/m3 (at 90-d curing age) and extend to 87 MPa under relaxed carbon targets. Compared with state-of-the-art optimization that rely on mixed precursors or un-normalized data, the proposed pipeline widens the design space, lifts strength by 10–20 MPa and trims CO₂ by up to 70 %. The framework— in this order: data curation, geometry correction, scenario-specific ML, evolutionary optimization—cuts trial batching efforts and offers practitioners ready-to-deploy, class F FA-GPC mixtures while providing a transparent template for other alkali-activated binders which was confirmed by an experimental validation.

• Zri, Abdeljalil; Abriak, Nor-Edine; Safhi, Amine el Mahdi; Pilehvar, Shima & Kioumarsi, Mahdi (2025). Performance Limits of Hydraulic-Binder Stabilization for Dredged Sediments: Comparative Case Studies. Buildings. 15(14). doi: 10.3390/buildings15142484. Full text in Research Archive Show summary

  Maintenance dredging produces large volumes of fine sediments that are commonly discarded, despite increasing pressure for beneficial reuse. Lime–cement stabilization offers one pathway, yet field performance is highly variable. This study juxtaposes two French marine dredged sediments—DS-F (low plasticity, organic matter (OM) ≈ 2 wt.%) and DS-M (high plasticity, OM ≈ 18 wt.%)—treated with practical hydraulic road binder (HRB) dosages. This is the first French study that directly contrasts two different DS types under identical HRB treatment and proposes practical boundary thresholds. Physical indexes (particle size, methylene-blue value, Atterberg limits, OM) were measured; mixtures were compacted (Modified Proctor) and tested for immediate bearing index (IBI). IBI, unconfined compressive strength, indirect tensile strength, and elastic modulus were determined. DS-F reached IBI ≈ 90–125%, UCS ≈ 4.7–5.9 MPa, and ITS ≈ 0.40–0.47 MPa with only 6–8 wt.% HRB, satisfying LCPC-SETRA class S2–S3 requirements for road subgrades. DS-M never exceeded IBI ≈ 8%, despite 3 wt.% lime + 6 wt.% cement. A decision matrix distilled from these cases and recent literature shows that successful stabilization requires MBV < 3 g/100 g, plastic index < 25%, OM < 7 wt.%, and fine particles < 35%. These thresholds permit rapid screening of dredged lots before costly treatment. Highlighting both positive and negative evidence clarifies the realistic performance envelope of soil–cement reuse and supports circular-economy management of DS.

• Safhi, Amine el Mahdi; Aliyari, Mostafa; Pilehvar, Shima; Nehdi, Moncef & Kioumarsi, Mahdi (2025). Systematic data-driven meta-analysis of class F fly-ash geopolymer concrete. Open Ceramics. 24. doi: 10.1016/j.oceram.2025.100861. Full text in Research Archive Show summary

  Geometry-dependent strength reporting has hindered reliable design of Class F fly-ash geopolymer concrete (FA-GPC). In this study, compressive-strength (CS) results from about 800 mixtures were normalized to the reference 150Ø300 mm cylinder, permitting direct cross-comparison of specimen geometries extracted from 67 peer-reviewed papers. The harmonized dataset bundles oxide chemistry, mix proportions, activator composition, curing schedules, fresh-state metrics, multi-age strengths, and cradle-to-gate CO₂ inventories. Normalized CS across 1–365 days spans 5.8–85.0 MPa, and CO₂ intensities range 66–895 kg CO₂/m³ (mean 160 ± 91). Data mining isolates practical activation windows—NaOH 10–12 M, silica modulus 1.5–2.3, curing ≤ 75 °C—that consistently deliver 28-d CS ≥ 50 MPa at ∼160 kg CO₂/m³. Compared to strength-matched OPC concretes, these mixes reduce embodied carbon by ∼45–55 % (median ≈ 50 %). Strength–carbon design maps and the open dataset enable practitioners to target structural classes under explicit CO₂ budgets and provide a reproducible springboard for machine learning-based prediction, life-cycle assessment, and optimization of alkali-activated concretes and geopolymers.

• Safhi, Amine el Mahdi; Pilehvar, Shima & Kioumarsi, Mahdi (2025). Review of advances and challenges in alkali-activated materials from dredged sediments. Open Ceramics. 23. doi: 10.1016/j.oceram.2025.100824. Full text in Research Archive Show summary

  Dredging worldwide generates over 1 billion m³ of sediments annually, creating disposal and environmental challenges. Alkali-activated materials (AAMs) offer a circular pathway by converting dredged sediments (DS) into sustainable binders and aggregates. This review synthesizes 32 studies on DS-based AAMs, detailing sediments chemistry, pretreatment routes, mix-design strategies, performance, and field cases. Calcination or mechanochemical activation elevates DS reactivity, producing binders that achieve 28-day compressive strengths of 15–40 MPa and durable matrices resistant to sulfate, freeze–thaw, and carbonation. Processed DS sands can fully or partially replace natural fine aggregates while maintaining ≥25 MPa concrete strength. AAM matrices immobilize heavy metals, keeping leachate below inert-waste thresholds. Key knowledge gaps remain in standardized mix design, long-term durability, and regulatory acceptance. The review outlines research and policy priorities to scale DS-AAM technologies for low-carbon infrastructure.

• Shoaei, Parham; Kjøniksen, Anna-Lena; Pamies, Ramón & Pilehvar, Shima (2024). Characterization of 3D-printable geopolymer mortars: Effect of binder composition and basalt fiber reinforcement. Case Studies in Construction Materials. 20. doi: 10.1016/j.cscm.2024.e03335. Full text in Research Archive
• Shoaei, Parham; Gallantree-Smith, Harrison Christopher; Pacheco, Victor Martínez; Pamies, Ramon Francisco Porras; Kjøniksen, Anna-Lena & Pilehvar, Shima (2024). Comparative analysis of 3D printing of Portland cement mortars with hydroxypropyl methylcellulose and microfibrillated cellulose as viscosity modifying agents. Materials & design. ISSN 0264-1275. 244. doi: 10.1016/j.matdes.2024.113124. Full text in Research Archive
• Shoaei, Parham; Momenzadeh, Abazar; Hosseini, Hamed; Rajaei, Shahin; Ameri, Farshad & Pilehvar, Shima (2024). One-part slag/zeolite geopolymer mortars under ambient and heat curing conditions. Case Studies in Construction Materials. 20. doi: 10.1016/j.cscm.2023.e02677. Full text in Research Archive
• Pilehvar, Shima; Arnhof, Marlies; Erichsen, Andreas; Valentini, Luca & Kjøniksen, Anna-Lena (2021). Investigation of severe lunar environmental conditions on the physical and mechanical properties of lunar regolith geopolymers. Journal of Materials Research and Technology (JMR&T). ISSN 2238-7854. 11, p. 1506–1516. doi: 10.1016/j.jmrt.2021.01.124. Full text in Research Archive Show summary

  3D-printing of geopolymers produced from lunar regolith is an interesting option for space in situ habitats. In this study, the influence of the severe lunar environmental conditions such as extreme temperature variations and vacuum on the physical and mechanical properties of lunar regolith geopolymers were investigated. Additionally, the effect of different amounts of urea as a geopolymer superplasticizer was evaluated. Utilization of urea was found to reduce the water needed to reach the same workability by up to 32%. Extrudability tests showed that mixtures containing 3 wt.% urea could be continuously extruded, and built up into a five layer structure without any noticeable deformation. Addition of urea decreased the compressive strength after exposure to the temperature variations of one lunar day–and–night cycle during curing. However, urea can prevent concrete degradation after the lunar cycle by increasing the amounts of air voids. X-ray tomography showed that the porosity became higher when urea was added to the samples, and increased markedly when the samples were cured in vacuum.

• Pilehvar, Shima; Arnhof, Marlies; Pamies, Ramon; Valentini, Luca & Kjøniksen, Anna-Lena (2020). Utilization of urea as an accessible superplasticizer on the moon for lunar geopolymer mixtures. Journal of Cleaner Production. ISSN 0959-6526. 247, p. 119177–119177. doi: 10.1016/j.jclepro.2019.119177. Full text in Research Archive
• Pilehvar, Shima; Sanfèlix, Susana G.; Szczotok-Piechaczek, Anna Maria; Rodriguez, Juan F.; Valentini, Luca & Lanzón, Marcos [Show all 8 contributors for this article] (2020). Effect of temperature on geopolymer and Portland cement composites modified with Micro-encapsulated Phase Change materials. Construction and Building Materials. ISSN 0950-0618. 252, p. 119055–119055. doi: 10.1016/j.conbuildmat.2020.119055. Full text in Research Archive
• Pilehvar, Shima; Szczotok-Piechaczek, Anna Maria; Carmona, Manuel; Pamies, Ramón & Kjøniksen, Anna-Lena (2020). The effect of microencapsulated phase change materials on the rheology of geopolymer and Portland cement mortars. Journal of The American Ceramic Society. ISSN 0002-7820. 103(10), p. 5852–5869. doi: 10.1111/jace.17215. Full text in Research Archive Show summary

  The effect of microencapsulated phase‐change materials (MPCM) on the rheological properties of pre‐set geopolymer and Portland cement mortars was examined. Microcapsules with hydrophilic and hydrophobic shells were compared. The shear rate dependency of the viscosities fitted well to a double Carreau model. The zero shear viscosities are higher for geopolymer mortar, illustrating poorer workability. The time evolution of the viscosities was explored at shear rates of 1 and 10 s−1. New empirical equations were developed to quantify the time‐dependent viscosity changes. The highest shear rate disrupted the buildup of the mortar structures much more than the lower shear rate. Microcapsules with a hydrophobic shell affect the rheological properties much less than the microcapsules with a hydrophilic shell, due to the higher water adsorption onto the hydrophilic microcapsules. Shear forces was found to break down the initial structures within geopolymer mortars more easily than for Portland cement mortars, while the geopolymer reaction products are able to withstand shear forces better than Portland cement hydration products. Initially, the viscosity of geopolymer mortars increases relatively slowly during due to formation of geopolymer precursors; at longer times, there is a steeper viscosity rise caused by the development of a 3D‐geopolymer network. Disruption of agglomerates causes the viscosities of portland cement mortars to decrease during the first few minutes, after which the hydration process (increasing viscosities) competes with shear‐induced disruption of the structures (decreasing viscosities), resulting in a complex viscosity behavior.

• Pilehvar, Shima; Szczotok-Piechaczek, Anna Maria; Rodríguez, Juan F.; Valentini, Luca; Lanzón, Marcos & Pamies, Ramon Francisco Porras [Show all 7 contributors for this article] (2019). Effect of freeze-thaw cycles on the mechanical behavior of geopolymer concrete and Portland cement concrete containing micro-encapsulated phase change materials. Construction and Building Materials. ISSN 0950-0618. 200, p. 94–103. doi: 10.1016/j.conbuildmat.2018.12.057. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Bringas, Carlos Salas; Szczotok-Piechaczek, Anna Maria; Bui, Tri Quang & Carmona, Manuel [Show all 8 contributors for this article] (2019). Thermal analysis of geopolymer concrete walls containing microencapsulated phase change materials for building applications. Solar Energy. ISSN 0038-092X. 178, p. 295–307. doi: 10.1016/j.solener.2018.12.039. Full text in Research Archive
• Arnhof, Marlies; Pilehvar, Shima; Kjøniksen, Anna-Lena & Cheibas, Ina (2019). Basalt fibre reinforced geopolymer made from lunar regolith simulant. EUCASS Proceedings Series. ISSN 2101-1559. doi: 10.13009/EUCASS2019-725. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Bringas, Carlos Salas; Szczotok-Piechaczek, Anna Maria; Bui, Tri Quang & Carmona, Manuel [Show all 8 contributors for this article] (2018). Thermal performance and numerical simulation of geopolymer concrete containing different types of thermoregulating materials for passive building applications. Energy and Buildings. ISSN 0378-7788. 173, p. 678–688. doi: 10.1016/j.enbuild.2018.06.011. Full text in Research Archive
• Pilehvar, Shima; Cao, Vinh Duy; Szczotok-Piechaczek, Anna Maria; Carmona, Manuel; Valentini, Luca & Lanzón, Marcos [Show all 8 contributors for this article] (2018). Physical and mechanical properties of fly ash and slag geopolymer concrete containing different types of micro-encapsulated phase change materials. Construction and Building Materials. ISSN 0950-0618. 173, p. 28–39. doi: 10.1016/j.conbuildmat.2018.04.016. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Bringas, Carlos Salas; Szczotok-Piechaczek, Anna Maria; Do, Nu Bich Duyen & Le, Hoa Thanh [Show all 9 contributors for this article] (2018). Influence of Microcapsule Size and Shell Polarity on the Time-Dependent Viscosity of Geopolymer Paste. Industrial & Engineering Chemistry Research. ISSN 0888-5885. 57(29), p. 9457–9464. doi: 10.1021/acs.iecr.8b01961. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Bringas, Carlos Salas; Szczotok-Piechaczek, Anna Maria; Valentini, Luca & Carmona, Manuel [Show all 8 contributors for this article] (2018). Influence of microcapsule size and shell polarity on thermal and mechanical properties of thermoregulating geopolymer concrete for passive building applications. Energy Conversion and Management. ISSN 0196-8904. 164, p. 198–209. doi: 10.1016/j.enconman.2018.02.076. Full text in Research Archive
• Pilehvar, Shima; Cao, Vinh Duy; Szczotok-Piechaczek, Anna Maria; Valentini, Luca; Salvioni, Davide & Magistri, Matteo [Show all 8 contributors for this article] (2017). Mechanical properties and microscale changes of geopolymer concrete and Portland cement concrete containing micro-encapsulated phase change materials. Cement and Concrete Research. ISSN 0008-8846. 100, p. 341–349. doi: 10.1016/j.cemconres.2017.07.012. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Bringas, Carlos Salas; Szczotok, Anna; Rodriguez, Juan F. & Carmona, Manuel [Show all 8 contributors for this article] (2017). Microencapsulated phase change materials for enhancing the thermal performance of Portland cement concrete and geopolymer concrete for passive building applications. Energy Conversion and Management. ISSN 0196-8904. 133, p. 56–66. doi: 10.1016/j.enconman.2016.11.061. Full text in Research Archive Show summary

  Concretes with a high thermal energy storage capacity were fabricated by mixing microencapsulated phase change materials (MPCM) into Portland cement concrete (PCC) and geopolymer concrete (GPC). The effect of MPCM on thermal performance and compressive strength of PCC and GPC were investigated. It was found that the replacement of sand by MPCM resulted in lower thermal conductivity and higher thermal energy storage, while the specific heat capacity of concrete remained practically stable when the phase change material (PCM) was in the liquid or solid phase. Furthermore, the thermal conductivity of GPC as function of MPCM concentration was reduced at a higher rate than that of PCC. The power consumption needed to stabilize a simulated indoor temperature of 23°C was reduced after the addition of MPCM. GPC exhibited better energy saving properties than PCC at the same conditions. A significant loss in compressive strength was observed due to the addition of MPCM to concrete. However, the compressive strength still satisfies the mechanical European regulation (EN 206-1, compressive strength class C20/25) for concrete applications. Finally, MPCM-concrete provided a good thermal stability after subjecting the samples to 100 thermal cycles at high heating/cooling rates.

• Allahverdi, Ali; Pilehvar, Shima & Mahinroosta, Mostafa (2016). Influence of curing conditions on the mechanical and physical properties of chemically-activated phosphorous slag cement. Powder Technology. ISSN 0032-5910. 288, p. 132–139. doi: 10.1016/j.powtec.2015.10.053. Full text in Research Archive

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• Pilehvar, Shima & Baltazar, Luís G. (2024). Advances in Geopolymer Composites: From Synthesis to Sustainable Applications. Crystals. 14(8). doi: 10.3390/cryst14080738. Full text in Research Archive
• Ghirmatsion, Habtom; Omar, Omar Mohamed; Pilehvar, Shima; Kioumarsi, Mahdi & Borrajo-Pelaez, Rafael (2024). Mechanical Reinforcement of Building Materials with Microfibers Produced by Electrospinning. Full text in Research Archive Show summary

  This study investigates the integration of electrospun cellulose acetate (CA) nanofibers into cementitious composites to enhance mechanical properties. Through systematic experimentation, optimal parameters for electrospinning CA fibers were determined, resulting in significant increases in compressive strength. Notably, incorporating 0.5% CA fibers led to a 15.5% increase in compressive strength compared to the reference sample. This research demonstrates the effectiveness of CA fiber reinforcement in cement-based materials, highlighting its potential for cost-effective enhancement of mechanical properties.

• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). HIØ-professor fikk kinesisk pris for utvikling av månebetong med urin. [Journal]. Fredriksstad Blad. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Urin als Baustoff für den Mond. [Journal]. MIT Technology Review science magazine's German edition. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Building a Moon Base. [Journal]. Double Helix. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2020). Urin kan bli byggemateriale på månen. [Internet]. Norsk Romsenter. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Making moon space bases with urine. [Journal]. Materials World. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). On the Moon, Astronaut Pee Will Be a Hot Commodity. [Journal]. Wierd. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Astronaut urine for building a Moon base. [Journal]. Science & Exploration. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2020). L'urine d'astronautes pourrait être utilisée pour créer du 'béton spatial'. [Journal]. Business Insider France. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Urine luck: Astronauts’ pee could be the secret ingredient to future moon bases. [Journal]. Digital Trends. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2020). Astronauts may be able to make cement using their own pee. [Journal]. Science News. Full text in Research Archive
• Pilehvar, Shima (2020). Using Astronauts' Urine to Built Lunar Construction. [Internet]. Live webinar with MAHSA University, Malaysia. Full text in Research Archive
• Kjøniksen, Anna-Lena; Pamies, Ramon Francisco Porras & Pilehvar, Shima (2020). Astronaut urine to build moon bases. [Journal]. Sinc Technology. Full text in Research Archive
• Kjøniksen, Anna-Lena; Pilehvar, Shima; Valentini, Luca; Arnhof, Marlies & Pamies, Ramon Francisco Porras (2020). Geopolymers from Lunar Regolith for Building on the Moon. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2020). Basalt fiber reinforced geopolymer for construction on the Moon. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2020). Recent research into urea as a plasticizer for concrete on the Moon. Double Helix magazine. Full text in Research Archive
• Kjøniksen, Anna-Lena; Pilehvar, Shima & Arnhof, Marlies (2019). Building a Base on the Moon? New Research in Regolith Concrete. Full text in Research Archive
• Kjøniksen, Anna-Lena; Calejo, Maria Teresa Rebelo; Cao, Vinh Duy; Pilehvar, Shima; Sanfèlix, Susana G. & Szczotok-Piechaczek, Anna Maria (2019). Advanced Materials - From drug delivery by energy technology to 3D-printing concrete on the Moon. Full text in Research Archive
• Kjøniksen, Anna-Lena; Calejo, Maria Teresa Rebelo; Sanfèlix, Susana G.; Pilehvar, Shima; Szczotok-Piechaczek, Anna Maria & Cao, Vinh Duy (2019). Advanced Materials - From drug delivery by energy technology to 3D-printing concrete on the Moon. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2019). Urin kan være løsningen for månebetong. [Journal]. forskning.no. Full text in Research Archive
• Pilehvar, Shima (2019). Designing different geopolymer mixtures for construction on the Moon. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2019). Gjennombruddet kom da måneforskerne tilsatte urin. [Internet]. NRK Østfold. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2019). Forsker på Månebetong. [TV]. NRK Distrikstnyheter Østfold. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2018). Norske forskere utvikler månebetong. [Internet]. NRK Østfold. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2018). Si ja til livet, si ja til månebetong! [Radio]. NRK Radio - Distriktsprogran Østfold - Eftan i Østfold. Full text in Research Archive
• Kjøniksen, Anna-Lena & Pilehvar, Shima (2018). Det lages betong til månen i Østfold. [Radio]. NRK Radio - Distriktsprogran Østfold - Eftan i Østfold. Full text in Research Archive
• Pilehvar, Shima (2017). Investigating the mechanical properties of geopolymer concrete with incorporated micro-encapsulated phase change materials. Full text in Research Archive
• Pilehvar, Shima; Kjøniksen, Anna-Lena; Szczotok, Anna M. & Pamies, Ramon Francisco Porras (2017). The Effect of Micro-encapsulated Phase Change Materials on the Properties of Geopolymer and Portland Cement Concrete. Full text in Research Archive
• Pilehvar, Shima; Allahverdi, Ali & Mahinroosta, Mostafa (2017). A Temperature–Age Model For Prediction of Compressive Strength of Chemically Activated High Phosphorus Slag Content Cement. International Journal of Civil Engineering. ISSN 1735-0522. Full text in Research Archive
• Pilehvar, Shima (2017). Investigating the different types of micro-encapsulated phase change materials on the mechanical properties of Geopolymer concrete. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Salas-Bringas, Carlos; Szczotok, Anna M. & Kjøniksen, Anna-Lena (2017). Smart Geopolymer Concrete Containing Microencapsulated Phase Change Materials for Passive Building Applications. Full text in Research Archive
• Cao, Vinh Duy; Pilehvar, Shima; Carlos, Salas Bringas; Szczotok, Anna M. & Kjøniksen, Anna-Lena (2017). The Effect of Microcapsulated Phase Change Materials on Thermal and Mechanical properties of Geopolymer Concrete. Full text in Research Archive Show summary

  The energy consumption for heating and cooling of buildings increases every year. Improved t material technology can help reducing the energy consumption needed to keep a comfortable indoor temperature. By integrating microencapsulated phase change materials (MPCM), which has a very high energy storage capacity within the phase transition temperature, the energy storage capacity of concrete can be significantly improved. This will facilitate improved passive building technology with reduced the energy consumption. Geopolymer concrete (GPC) is synthesized by alkali activation of aluminosilicate materials in amorphous form (industrial waste). Geopolymer concrete is much more environmentally friendly than Portland cement concrete, which has a negative effect on the environment due to emission of huge amounts of CO2. Therefore, the integration of MPCM to GPC provides a promising environmentally friendly material with a high energy storage capacity. However, knowledge regarding the effect of MPCM on the thermal and mechanical properties of geopolymer concrete is very limited. In this study, high thermal energy storage capacity materials were fabricated by mixing MPCM into geopolymer concrete (GPC). The effect of different type and concentration of MPCM on improving the thermal properties of GPC has been examined. Furthermore, the negative effect on the compressive strength of geopolymer concrete received special attention. Optimizing the effect of MPCM on geopolymer concrete to improve thermal properties and maintain the compressive strength of the geopolymer concrete at an acceptable level for building application is the main target of this study.

• Pilehvar, Shima & Kjøniksen, Anna-Lena (2016). The Effect of Micro-encapsulated Phase Change Materials in Liquid State on Properties of Geopolymer and Portland Cement Concrete. Full text in Research Archive
• Pilehvar, Shima (2016). Influence of micro-encapsulated phase change materials on the mechanical properties of Geopolymer and Portland cement concretes. Full text in Research Archive
• Pilehvar, Shima (2016). Investigating the mechanical properties of Geopolymer concrete with micro-encapsulated phase change materials. Full text in Research Archive
• Pilehvar, Shima (2016). Investigating the mechanical behavior of Geopolymer and Portland cement concrete with incorporated microencapsulate-phase change material. Full text in Research Archive
• Pilehvar, Shima & Kjøniksen, Anna-Lena (2016). The mechanical behavior of geopolymer and Portland cement concrete with micro-encapsulated PCM. Full text in Research Archive
• Pilehvar, Shima (2015). Investigating the mechanical behavior of Geopolymer and Portland cement concrete. Full text in Research Archive

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