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2024 | OriginalPaper | Buchkapitel

DTU Concrete Prism Test Method DTU CPT: An Assessment of a “New” Accelerated Test Method for Alkali Silica Reactions in Concrete for Both Fast Reactive and Slow Reactive Coarse Aggregates

verfasst von : J. B. Mørk, K. K. Hansen, B. Grelk, A. B. Brøndum

Erschienen in: Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete

Verlag: Springer Nature Switzerland

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Abstract

The newly developed ‘DTU concrete prism test method’ (DTU CPT) ‘Accelerated test method for alkali silica reaction in concrete’ is based on the NORDTEST method NT BUILD 295 ‘Sand-alkali-silica reactivity accelerated test’. The changes from NT BUILD 295 in DTU CPT primary concerns test specimen size, aggregate size and expansion limit. The DTU CPT can be used for ASR-reactivity assessment of a single coarse aggregate or a combination in the range (4–16 mm) hence the method can reproduce representative results for concrete. The method applies concrete prisms of size 75 × 75 × 285 mm in saturated NaCl solution at 50 ℃ up to 52 weeks.

The paper shows measurement results by use of DTU CPT for seven coarse aggregates, both fast reactive and slow reactive aggregates, in relation with two innocuous reference aggregates. The results from DTU CPT tests are compared with results from ASTM C 1293 tests. The results from the test show that DTU CPT seems to be useful for assessing both fast and slow coarse reactive aggregate types, seemingly also for aggregates with pessimum behaviour.

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Vorheriges Kapitel Methods for Extracting Alkalis from Spanish Aggregates

Nächstes Kapitel Rapid Determination of Aggregate Alkali-Silica Reactivity and Threshold Alkalinity and Estimation of SCM Dosage Using Innovative Test Methods

Basic Concrete Specifications for Building Constructions, Danish Building and Property Agency. Ministry of Transport, Lyngby (1987). ISBN 87-503-6502-9

DS/EN 481 - Concrete - Materials, Danish Standards Foundation (1999)

DS/EN 2426 - Concrete - Materials - Rules for application of EN 206-1 in Denmark, Danish Standards Foundation (2004)

ASTM C1260: Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method), PA: ASTM International (2014)

DS/EN 206 DK: Table DK NA-E.2, Danish Standards Foundation (2020)

Hobbs, D.W.: Alkali-Silica Reaction in Concrete, pp. 45–49. Thomas Telford, London (1988)

Katayama, et al.: Alkali-aggregate reaction under the influence of deicing salts in the Hokuriku district, Japan. Materials Characterization, no. 53 (2004)

Yi-Cheng, C., Olek, J.: Using modified mortar-bar test method to access the effects of deicers on expansion of mortars with and without reactive aggregates. In: 4th International Conference on the Durability of Concrete Structures (2014)

Sievering, C., Breitenbücher, R.: Influence of External Alkali Supply on Cracking in Concrete Pavements (2012)

10.

Chatterji, S., Thaulowog, N., Jensen, A.D.: Studies of alkali-silica reaction Part 4. Effect of different alkali salt solutions on expansion. Danish Technological Institute (1987)

11.

Deboodt, T., Wilson, A., Ideker, J.H., Adams, M.P.: Re-evaluation of testing parameters in the accelerated mortar bar test. In: Newark: ICAAR 2016 (2016)

12.

TI-B 51 (85): Accelerated method for testing alkali-silica reactivity of sand. Danish Technological Institute, Taastrup (1985). (in Danish)

13.

Andrejevic, N., Hutton, B.: Can ASTM C1293 test method for ASR aggregates be used on Danish and foreign coarse aggregates, Kgs, B.Sc. thesis. Technical University of Denmark, Lyngby (2022). (in Danish)

14.

ASTM C1293-18a: Standard Test Method for Determination of Length Change of Concrete Due to Alkali- Silica Reaction. ASTM International (2019)

15.

AAR-1: Detection of potential alkali-reactivity of aggregates – Petrographic method, RILEM (2003)

16.

Trägårdh, J.: ASR i svensk betong – vägledning för nya och befintliga konstruktioner, Betongrapport nr. 18 udgave 1 ed., SBUF, p. Appendix F (2019)

17.

Chatterji, S., Christensen, P.: Studies of alkali-silica reaction Part 7. Modeling of expansion (1990)

18.

Storm, M., Grebin, M.W.: Influence of temperature and w/c-ratio on testing of reactive Danish and foreign coarse aggregates by using the modified test method TI-B51 Concrete, B.Sc. thesis. Technical University of Denmark, Lyngby (2022). (in Danish)

19.

Wigum, B.J., Pedersen, L.T., Grelk, B., Lindegård, J.: State-of-the-Art Report: Key Parameters Influencing the Alkali Aggregate Reaction. SINTEF, Trondheim (2006)

20.

Alkali-Richtlinie: Preventive measures against harmful alkali reactions in concrete. DAfStb (2013). (in German)

21.

AAR-2: Detection of Potential Alkali-Reactivity—Accelerated Mortar-Bar Test Method for Aggregates. RILEM (2016)

22.

AAR-3: Detection of Potential Alkali-Reactivity—38 °C Test Method for Aggregate Combinations Using Concrete Prisms. RILEM (2016)

23.

AAR-4.1: Detection of Potential Alkali-Reactivity—60 °C Test Method for Aggregate Combinations Using Concrete Prisms. RILEM (2016)

24.

AAR-10: determination of binder combinations for non-reactive mix design using concrete prisms—38 °C test method. RILEM (2021)

25.

TK 84 (89): Accelerated method for testing Chemical Shrinkage, Danish Technological Institute, Constructions (1989). (in Danish)

Titel: DTU Concrete Prism Test Method DTU CPT: An Assessment of a “New” Accelerated Test Method for Alkali Silica Reactions in Concrete for Both Fast Reactive and Slow Reactive Coarse Aggregates
verfasst von: J. B. Mørk
K. K. Hansen
B. Grelk
A. B. Brøndum
Verlag: Springer Nature Switzerland
Buch: Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete
Print ISBN: 978-3-031-59418-2

Electronic ISBN: 978-3-031-59419-9

Copyright-Jahr: 2024
DOI: https://doi.org/10.1007/978-3-031-59419-9_37

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