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1219· To date, numerous one-part geopolymers examined were systems activated with the mixture of anhydrous sodium silicate (Na 2SiO 3) with other materials, namely sodium …
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Mechanical properties of sustainable engineered geopolymer …
However, typical alkaline activators used in geopolymer often contribute to significant environmental impact. Sodium carbonate (SC), also known as natural alkali, is derived from …
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Development of a weakly alkaline alkali-activated mortar: use of …
2025610· The evolution of properties of a one-part fly ash-slag-based geopolymer mortar activated with sodium carbonate (Na2CO3, henceforth referred to as SC), sodium sulfate …
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Roles of hybrid activators in improving the early-age properties …
111· The solid activators used for the preparation of one-part geopolymer pastes were anhydrous sodium metasilicate (Na 2 SiO 3), sodium carbonate (Na 2 CO 3), and …
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Mechanical and microstructural characteristics of geopolymer paste
2020111· Geopolymer is considered as the last generation of cement, after lime and ordinary Portland cement (OPC), The sodium carbonate, with the purity of more than 99% …
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Mechanical properties of sustainable engineered geopolymer …
Hybrid activation of sodium carbonate is applied in engineered geopolymer composites. High strength, ductility, robust strain-hardening and distributed cracking are achieved. The …
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Experimental study of one-part geopolymer using different alkali
202081· The results showed that sodium metasilicate pentahydrate was more suitable than quick-dissolving sodium silicate for preparation of geopolymer. The addition of sodium …
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Mechanical properties of sustainable engineered geopolymer …
Engineered geopolymer composites (EGC) have emerged as promising alternatives to engineered cementitious composites (ECC), largely owing to their low carbon emission …
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Effect of emulsification step on calcium carbonate encapsulated
2024102· Sodium dodecyl benzene sulfonate (SDBS) was employed as an anionic surfactant, and Sudan Red (III) was supplied by Aldrich, USA. Calcium chloride (CaCl 2) and …
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Relationship between Moisture Transportation, Efflorescence and
The efflorescence products scraped from the exposed geopolymer samples are mainly composed of heptahydrate (Na 2 CO 3 ·7H 2 O), trona (Na 3 H(CO 3) 2 ·2H 2 O) and sodium carbonate …
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Preparation of alkali-activated oil shale residue-slag geopolymer …
2025131· Based on the reuse of industrial solid wastes such as calcium carbide slag, slag, and oil shale residue, this work utilizes oil shale residue and slag as precursor materials, …
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Compressive Strength of Mortar Made with One-Part …
2024518· In this study, a geopolymeric binder was prepared in powder form containing slag as a precursor material, and sodium silicate and sodium carbonate as alkaline materials. …
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Mechanical properties of sustainable engineered geopolymer …
This study introduces a novel hybrid activation approach using SC as a partial replacement for sodium hydroxide (SH), aiming to improve both the mechanical performance and sustainability …
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Investigation of Affecting Factors on Drying Shrinkage and
1127· In geopolymer mixes, the amount of shrinkage is (3–6 times) higher than the OPC. Excessive shrinkage can cause cracking, which is a threat to the durability of the …
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Life cycle assessment of stabilization and solidification of heavy
2025513· Fig. 10 illustrates the stabilization and solidification mechanisms of heavy metals (Pb, Cr, Cd) in the sodium carbonate-activated volcanic ash geopolymer system incorporating …
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Mechanical Properties of Sustainable Engineered Geopolymer …
2025518· Mechanical Properties of Sustainable Engineered Geopolymer Composites with Sodium Carbonate Activators
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sodium carbonate – Geopolymer House Blog
Next, a substance called Natron salt (sodium carbonate) was poured in. Salt is a very reactive substance that has a petrifying effect, which is why it is used to avoid the putrefaction of …
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Compositions and Microstructures of Carbonated …
2024128· It is thought that geopolymers are easy to carbonate, especially when they are cured in ambient temperatures. Matrix gel’s composition and microstructure, and new products of geopolymers (GPs) after carbonation …
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Towards greener one-part geopolymers through solid sodium …
1210· Mechanical and microstructural characteristics of geopolymer paste, mortar, and concrete containing local zeolite and slag activated by sodium carbonate J. Build. Eng. , …
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(PDF) The Effect of Sodium Carbonate on the Fresh and Hardened
2020710· Meanwhile, the highly corrosive alkali solutions used as activators in conventional geopolymers were replaced by different solid activators (in powder form), such as …
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A novel method to produce dry geopolymer cement powder
2019517· The addition of moderate amount of calcium carbonate to a geopolymer has significant improvements on the geopolymer structure and properties [Citation 29, Citation 30]. …
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Effect of sodium carbonate/sodium silicate activator on the …
121· PGM's physical appearance showed no sodium carbonate formation, unlike the study reported by Ishwarya et al. (2019) which observed that sodium carbonate appeared on …
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Development of one-part geopolymer binder produced from …
2025610· Xun et al. [4] prepared one-part geopolymer binders from low-quality bentonite calcining with sodium hydroxide and sodium carbonate at different temperatures. The highest …
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Compositions and Microstructures of Carbonated Geopolymers …
2024128· It is thought that geopolymers are easy to carbonate, especially when they are cured in ambient temperatures. Matrix gel’s composition and microstructure, and new products …
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Sodium carbonate-based post combustion carbon capture …
2020315· The investigation of sorbent depletion is assessed by solely considering a representative reaction between sodium carbonate and sulphur dioxide. This idealisation …
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Evaluation of environmental sustainability of one-part geopolymer
121· Liquid sodium hydroxide was replaced by sodium carbonate (Na 2 CO 3 or soda ash) powder which is classified as non-dangerous goods (Redox, 2015). Besides, sodium …
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Acid-resistance of one-part geopolymers: Sodium aluminate and carbonate …
1110· Acid-resistance of one-part geopolymers: Sodium aluminate and carbonate as alternative activators to conventional sodium metasilicate and hydroxide. Author [21] …
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Carbonation in the pore solution of metakaolin-based geopolymer
2016101· The analysis of the geopolymer pore solution showed the formation of 40 g·L − 1 of sodium carbonate in 14 days, corresponding to 10% of the initial amount of sodium …
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The effects of calcium carbonate on sodium metasilicate …
20241018· The influence of pure calcium carbonate (CaCO 3) on the alkali-activation kinetics, microstructure, and compressive strength of sodium metasilicate-activated metakaolin …
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The engineering properties and microstructure of sodium carbonate
201931· Results were compared with Ordinary Portland Cement (OPC) mortars and sodium hydroxide activated geopolymer mortars which were established through an existing …
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