Knut O. Kjellsen

4.2k total citations · 1 hit paper
39 papers, 3.5k citations indexed

About

Knut O. Kjellsen is a scholar working on Civil and Structural Engineering, Materials Chemistry and Building and Construction. According to data from OpenAlex, Knut O. Kjellsen has authored 39 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Civil and Structural Engineering, 17 papers in Materials Chemistry and 10 papers in Building and Construction. Recurrent topics in Knut O. Kjellsen's work include Concrete and Cement Materials Research (34 papers), Magnesium Oxide Properties and Applications (13 papers) and Innovative concrete reinforcement materials (11 papers). Knut O. Kjellsen is often cited by papers focused on Concrete and Cement Materials Research (34 papers), Magnesium Oxide Properties and Applications (13 papers) and Innovative concrete reinforcement materials (11 papers). Knut O. Kjellsen collaborates with scholars based in Norway, United States and Sweden. Knut O. Kjellsen's co-authors include Klaartje De Weerdt, Harald Justnes, Rachel J. Detwiler, Mohsen Ben Haha, Barbara Lothenbach, Gwenn Le Saoût, Odd E. Gjørv, Erik J. Sellevold, Maciej Zając and Mette Rica Geiker and has published in prestigious journals such as SHILAP Revista de lepidopterología, Cement and Concrete Research and Construction and Building Materials.

In The Last Decade

Knut O. Kjellsen

38 papers receiving 3.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash

2010 1.1k citations Klaartje De Weerdt, Mohsen Ben Haha et al. Cement and Concrete Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Knut O. Kjellsen Norway	25	3.3k	1.3k	967	269	162	39	3.5k
Jason H. Ideker United States	20	2.9k 0.9×	1.1k 0.8×	1.1k 1.1×	231 0.9×	118 0.7×	64	3.1k
Vute Sirivivatnanon Australia	23	3.9k 1.2×	1.3k 1.0×	1.6k 1.6×	248 0.9×	157 1.0×	71	4.2k
C.J. Lynsdale United Kingdom	28	2.7k 0.8×	927 0.7×	1.1k 1.2×	337 1.3×	82 0.5×	50	2.9k
Sulapha Peethamparan United States	26	2.8k 0.9×	1.1k 0.8×	1.0k 1.1×	127 0.5×	157 1.0×	51	3.0k
Jeffrey W. Bullard United States	10	2.7k 0.8×	1.0k 0.8×	707 0.7×	273 1.0×	121 0.7×	13	3.0k
Mohamed Heikal Egypt	31	2.5k 0.8×	961 0.7×	960 1.0×	159 0.6×	138 0.9×	80	2.8k
Daniel Jansen Germany	30	3.3k 1.0×	1.2k 0.9×	1.3k 1.3×	236 0.9×	195 1.2×	81	3.7k
Nima Farzadnia Malaysia	32	4.4k 1.4×	1.1k 0.8×	1.6k 1.7×	196 0.7×	202 1.2×	57	4.8k
Patrick Juilland Switzerland	11	2.4k 0.7×	892 0.7×	698 0.7×	197 0.7×	109 0.7×	16	2.6k
Jeffrey J. Chen United States	8	2.1k 0.7×	975 0.7×	450 0.5×	341 1.3×	90 0.6×	12	2.4k

Countries citing papers authored by Knut O. Kjellsen

Since Specialization

Citations

This map shows the geographic impact of Knut O. Kjellsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Knut O. Kjellsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Knut O. Kjellsen more than expected).

Fields of papers citing papers by Knut O. Kjellsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Knut O. Kjellsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Knut O. Kjellsen. The network helps show where Knut O. Kjellsen may publish in the future.

Co-authorship network of co-authors of Knut O. Kjellsen

This figure shows the co-authorship network connecting the top 25 collaborators of Knut O. Kjellsen. A scholar is included among the top collaborators of Knut O. Kjellsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Knut O. Kjellsen. Knut O. Kjellsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Machner, Alisa, Knut O. Kjellsen, Maciej Zając, et al.. (2024). Hydration of Composite Cements Containing Novel SCMs. SHILAP Revista de lepidopterología. 70(1). 77–97. 2 indexed citations

Lothenbach, Barbara, et al.. (2023). The effect of varying cement replacement level on alkali metal distribution in cement pastes. Cement and Concrete Composites. 146. 105344–105344. 12 indexed citations

Machner, Alisa, Maciej Zając, Mohsen Ben Haha, et al.. (2018). Chloride-binding capacity of hydrotalcite in cement pastes containing dolomite and metakaolin. Cement and Concrete Research. 107. 163–181. 141 indexed citations

Weerdt, Klaartje De, Mohsen Ben Haha, Gwenn Le Saoût, et al.. (2012). The effect of temperature on the hydration of composite cements containing limestone powder and fly ash. Materials and Structures. 45(7). 1101–1114. 79 indexed citations

Weerdt, Klaartje De, Erik J. Sellevold, Knut O. Kjellsen, & Harald Justnes. (2011). Fly ash–limestone ternary cements: effect of component fineness. Advances in Cement Research. 23(4). 203–214. 63 indexed citations

Weerdt, Klaartje De, Harald Justnes, Knut O. Kjellsen, & Erik J. Sellevold. (2010). Fly ash -limestone ternary composite cements: synergetic effect at 28 days. Nordic Concrete Research. 42(2). 51–70. 36 indexed citations

Kjellsen, Knut O. & Harald Justnes. (2004). Revisiting the microstructure of hydrated tricalcium silicate––a comparison to Portland cement. Cement and Concrete Composites. 26(8). 947–956. 65 indexed citations

Detwiler, Rachel J., et al.. (2001). PREPARING SPECIMENS FOR MICROSCOPY. ACI Concrete International. 23(11). 50–58. 28 indexed citations

Kjellsen, Knut O., et al.. (1998). Microstructure and microchemistry of the paste—aggregate interfacial transition zone of high-performance concrete. Advances in Cement Research. 10(1). 33–40. 57 indexed citations

10.

Kjellsen, Knut O., et al.. (1998). X-ray Microanalysis of Hydrated Cement: Is the Analysis Total Related to Porosity?. Cement and Concrete Research. 28(2). 161–165. 15 indexed citations

11.

Kjellsen, Knut O., et al.. (1997). Quantitative analysis of the major phases in sulfate-resistant cement silica fume systems by SEM, 29Si NMR and XRD methods. 2 indexed citations

12.

Kjellsen, Knut O., Björn Lagerblad, & H. M. Jennings. (1997). Hollow-shell formation – an important mode in the hydration of Portland cement. Journal of Materials Science. 32(11). 2921–2927. 20 indexed citations

13.

Kjellsen, Knut O. & Hamlin M. Jennings. (1996). Observations of microcracking in cement paste upon drying and rewetting by environmental scanning electron microscopy. Advanced Cement Based Materials. 3(1). 14–19. 57 indexed citations

14.

Kjellsen, Knut O.. (1996). Heat curing and post-heat curing regimes of high-performance concrete: Influence on microstructure and C-S-H composition. Cement and Concrete Research. 26(2). 295–307. 80 indexed citations

15.

Kjellsen, Knut O. & Rachel J. Detwiler. (1992). Reaction kinetics of portland cement mortars hydrated at different temperatures. Cement and Concrete Research. 22(1). 112–120. 190 indexed citations

16.

Detwiler, Rachel J., Knut O. Kjellsen, & Odd E. Gjørv. (1991). Resistance to chloride intrusion of concrete cured at different temperatures. ACI Materials Journal. 88(1). 64 indexed citations

17.

Kjellsen, Knut O., Rachel J. Detwiler, & Odd E. Gjørv. (1991). Development of microstructures in plain cement pastes hydrated at different temperatures. Cement and Concrete Research. 21(1). 179–189. 227 indexed citations

18.

Kjellsen, Knut O., Rachel J. Detwiler, & Odd E. Gjørv. (1991). Backscattered electron image analysis of cement paste specimens: Specimen preparation and analytical methods. Cement and Concrete Research. 21(2-3). 388–390. 33 indexed citations

19.

Kjellsen, Knut O., Rachel J. Detwiler, & Odd E. Gjørv. (1990). Pore structure of plain cement pastes hydrated at different temperatures. Cement and Concrete Research. 20(6). 927–933. 127 indexed citations

20.

Kjellsen, Knut O., Rachel J. Detwiler, & Odd E. Gjørv. (1990). Backscattered electron imaging of cement pastes hydrated at different temperatures. Cement and Concrete Research. 20(2). 308–311. 111 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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