Reactivity tests for supplementary cementitious materials: RILEM TC 267-TRM phase 1

Li, Xuerun; Snellings, Ruben; Antoni, Mathieu; Alderete, Natalia Mariel; Haha, Mohsen Ben; Bishnoi, Shashank; Çizer, Özlem; Cyr, Martin; Weerdt, Klaartje De; Dhandapani, Yuvaraj; Duchesne, Josée; Haufe, Johannes; Hooton, R.D.; Juenger, Maria; Kamali-Bernard, Siham; Kramar, Sabina; Marroccoli, Milena; Joseph, Aneeta Mary; Parashar, Anuj; Patapy, Cédric; Provis, John L.; Sábio, Sérgio; Santhanam, Manu; Steger, Laurent; Sui, Tongbo; Telesca, Antonio; Vollpracht, Anya; Vargas, Fernando Silva; Walkley, Brant; Winnefeld, Frank; Ye, Guang; Zając, Maciej; Zhang, Shizhe; Scrivener, Karen

doi:10.1617/s11527-018-1269-x

Cited by 163 publications

(118 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The best correlation is calculated between the R3 test heat and 2 d compressive strength with an R² of 0.95, followed by the method taken from Snellings and Scrivener (2016) with an R² of 0.92. These R² values are similar to the correlation coefficients observed for calcined clay reactivity and 28d compressive strength of various SCMs[19,22]. Goodness of fit is progressively degrading towards higher and lower ages.Only the method taken from Kashani et al 2014 shows a better fit for 91 d old samples than for 28 d and d old samples[29].…”

supporting

confidence: 83%

“…In the first test using 6 selected GGBS, the two protocols using Ca(OH) 2 addition at 40°C showed the best correlation with 2 d compressive strength values (Table 6). We chose the R3 method based on Avet et al, (2016) and Li et al, (2018) for further investigation as sample handling was much easier due to higher l/s ratio and for higher absolute heat values and larger relative differences between samples [19,22].…”

Section: Probing Into Reactivity Using Isothermal Calorimetrymentioning

confidence: 99%

“…A multitude of test methods are available to predict the reactivity of supplementary cementitious materials (SCM). Usually chemical tests are used to predict short term compressive strength, see and Li et al (2018) for a review [19,20]. Standardized test methods use Ca consumption during hydration of the SCM (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Chapelle test, Frattini test). These were designed for pozzolanic material and are difficult to apply to slags, as GGBS contain a substantial amount of reactive Ca [19]. Further methods aim to determine the degree of reaction of SCMs: most notably selective dissolution, SEM-IA, XRD, and NMR are presented in scientific literature but are often time consuming and with moderate accuracy at early age [21].…”

Section: Introductionmentioning

confidence: 99%

“…In recent publications heat development during hydration of a simplified system showed good correlation with compressive strength of different SCM containing mortars [19,20,22]. In these studies, a sulphate containing alkaline solution is added to a mix of portlandite, carbonates and the respective SCM.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Ability of the R3 test to evaluate differences in early age reactivity of 16 industrial ground granulated blast furnace slags (GGBS)

Blotevogel¹,

Ehrenberg²,

Steger³

et al. 2020

Cement and Concrete Research

Self Cite

View full text Add to dashboard Cite

Ground granulated blast furnace slag (GGBS) is a glassy by-product of pig iron production and is commonly used in concrete industry to replace cement and thereby lower the carbon footprint of the material. Large variations in reactivity exist depending on the GGBS physical and chemical features. Here we investigate the ability of three rapid calorimetric methods to evaluate the reactivity of GGBS. On a set of 16 industrial GGBS, we show that 24h heat release, using the R3protocol, correlates well with 2d compressive strength of standard mortars using 75 wt.-% GGBS. The correlation of R3-test results (R²= 0.87) is better than for traditional reactivity indices calculated from chemical composition. Furthermore, we present data on the repeatability of the test protocol and show that the R3 protocol is very sensitive to sample fineness. Finally, XRD patterns show that slight differences in phase assemblage exist between the most and least reactive GGBS.

show abstract

supporting

confidence: 83%

Section: Probing Into Reactivity Using Isothermal Calorimetrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ability of the R3 test to evaluate differences in early age reactivity of 16 industrial ground granulated blast furnace slags (GGBS)

Blotevogel¹,

Ehrenberg²,

Steger³

et al. 2020

Cement and Concrete Research

Self Cite

View full text Add to dashboard Cite

show abstract

Reaktivitätsuntersuchungen von calcinierten Tonen mit geringem Metakaolingehalt

Sowoidnich,

Hoffmann,

Rößler

et al. 2023

ce papers

View full text Add to dashboard Cite

Die Verwendung von kalziniertem Ton als Ersatzstoff für Zement bietet vielversprechende Möglichkeiten, um die zukünftige Zementproduktion umweltfreundlicher zu gestalten und den CO2‐Fußabdruck von Beton zu reduzieren. Die Eignung für einen Einsatz als Kompositmaterial hängt wesentlich von der Reaktivität der calcinierten Tone ab und ist von verschiedenen Parametern abhängig. Die vorliegenden Untersuchungen wurden an 4 verschiedenen Tongemengen mit unterschiedlichen Brenntemperaturen durchgeführt. Es wurde die puzzolanische Reaktivität nach modifiziertem Chapelle Test sowie nach dem R3‐Test (engl.: „Rapid, Relevant and Reliable”) beurteilt.Die Ergebnisse zeigen, dass auch bei einem Metakaolingehalt von unter 15% der R3‐Test hinreichende Aussagen zur Reaktivität der calcinierten Tone ermöglicht. Im Gegensatz dazu ist der Chapelle Test weniger gut geeignet.

show abstract

Sulfate consumption during the hydration of Alite and its influence by SCMs

Maier,

Scherb,

Thienel

2023

ce papers

View full text Add to dashboard Cite

SCMs with a large specific surface area, such as calcined clays or fine limestone powder, can significantly accelerate the occurrence of the aluminate heat flow peak during the early hydration of blended cements. These systems therefore require a higher amount of sulfate. While this effect has been drawn back to the sulfate incorporation into C‐S‐H, which is formed more rapidly due to the filler effect, it has been recently shown that in systems with high amounts of metakaolin, the sulfate balance is influenced by further mechanisms. This study provides new results on the influence of aluminum‐rich and aluminum‐free SCMs on the early hydration of alite in presence of calcium sulfate. A synthesized alite was blended with 5 wt% of anhydrite and its hydration was investigated by isothermal calorimetry and in‐situ XRD at a w/b ratio of 0.5. It was shown that the formed C‐S‐H is able to take up the calcium and sulfate ions, indicated by a depletion of the solid anhydrite after approximately 20 hours. This process is significantly accelerated by incorporating 30 wt% of a fine limestone filler. The addition of metakaolin leads to an acceleration of the alite hydration compared to the reference as well, but to a significantly lower extend compared to the limestone. However, this system requires a lower degree of alite reaction to reach sulfate depletion. This indicates that in metakaolin‐rich systems, the sulfate demand is influenced by further effects. The results from in‐situ‐XRD reveal that significant ettringite formation is taking place in the metakaolin‐blended system already during the first hours of hydration. Correlations between the degree of alite hydration and the rate of sulfate depletion provide new insights into the mechanisms affecting the sulfate balance and early hydration of blended cements.

show abstract

Reactivity tests for supplementary cementitious materials: RILEM TC 267-TRM phase 1

Cited by 163 publications

References 12 publications

Ability of the R3 test to evaluate differences in early age reactivity of 16 industrial ground granulated blast furnace slags (GGBS)

Ability of the R3 test to evaluate differences in early age reactivity of 16 industrial ground granulated blast furnace slags (GGBS)

Reaktivitätsuntersuchungen von calcinierten Tonen mit geringem Metakaolingehalt

Sulfate consumption during the hydration of Alite and its influence by SCMs

Contact Info

Product

Resources

About