default author photo

Ippei Maruyama

Nagoya University

SCHOLARLY PAPERS

30

DOWNLOADS

1,256

TOTAL CITATIONS

5

Scholarly Papers (30)

1.

Microstructural Analysis of Cement Paste Blended with Blast Furnace Slag Using 1h Nmr Relaxometry

Number of pages: 68 Posted: 09 Sep 2022
University of Glasgow, KU Leuven, Chiba University, Nagoya University and KU Leuven
Downloads 101 (684,672)

Abstract:

Loading...

Proton NMR, Hydration, GGBFS, pore structure, Calcium Silicate Hydrate

2.

Effects of Relative Humidity and Temperature on Chloride-Induced and Carbonation-Induced Corrosion Behaviors of Steel in Mortar

Number of pages: 63 Posted: 22 Apr 2022
Luge Cheng, Kazuo Yamada and Ippei Maruyama
affiliation not provided to SSRN, Fukushima Regional Center for the Japan Environmental and Children’s Study and Nagoya University
Downloads 101 (684,672)

Abstract:

Loading...

Corrosion (C), Chloride (D), Carbonation (C), Relative humidity (A), Temperature (A)

3.

Microstructural Evolution of Limestone Calcined Clay Cement (Lc3 ) Paste: Insights from Hydration to Drying Using ¹H-Nmr Relaxometry

Number of pages: 31 Posted: 22 Apr 2025
ZHENLI YANG, Luge Cheng, Ryo Kurihara and Ippei Maruyama
affiliation not provided to SSRN, affiliation not provided to SSRN, University of Tokyo and Nagoya University
Downloads 77 (823,616)

Abstract:

Loading...

Limestone Calcined Clay Cement (LC3), drying, Pore structure, calcium alumino silicate hydrate

4.

Application of Total Carbon Analysis for Carbon Dioxide Fixation in Cementitious Materials

Number of pages: 32 Posted: 24 Jan 2024
Luge Cheng, Haruka Takahashi and Ippei Maruyama
affiliation not provided to SSRN, affiliation not provided to SSRN and Nagoya University
Downloads 60 (961,006)

Abstract:

Loading...

Thermal Analysis (B), Carbonation(C), CaCO3(D)

5.

Effect of Fineness of Cement on Drying Shrinkage

Number of pages: 41 Posted: 21 Mar 2022
Nagoya University, affiliation not provided to SSRN, affiliation not provided to SSRN and University of Tokyo
Downloads 59 (970,490)

Abstract:

Loading...

(a) Drying, (b) Calcium-Silicate-Hydrate (C-S-H), (b) Microstructure, (b) Surface Area

6.

Evaluation of Seismic Performance of Deteriorated Massive RC Wall Structure Restrained by Adjacent RC Members Using RBSM

Number of pages: 55 Posted: 13 Jun 2023
Nagoya University, Fukushima Regional Center for the Japan Environmental and Children’s Study, Hokkaido University, Nagoya University, Japan Atomic Energy Agency, Hokkaido University and Nagoya University
Downloads 52 (1,041,696)
Citation 2

Abstract:

Loading...

massive RC structure, whole history, deterioration process, seismic performance, durability, RBSM

7.

Shrinkage Transfer Mechanism from C-S-H Agglomeration to Cement Paste Under the First Drying

Number of pages: 24 Posted: 13 Jan 2025
Ippei Maruyama, Yuto Kanda and Ryo Kurihara
Nagoya University, University of Tokyo and University of Tokyo
Downloads 50 (1,063,489)

Abstract:

Loading...

Calcium-Silicate-Hydrate (B), Drying (A), Shrinkage (C), Microstructure (B), Adsorption (C)

Proposal of a new pretreatment of accelerated carbonation for evaluating material potential

Number of pages: 52 Posted: 19 Nov 2025
affiliation not provided to SSRN, University of Tokyo, affiliation not provided to SSRN, Chiba University, Hokkaido University, Hiroshima University, Niigata University and Nagoya University
Downloads 39 (1,224,220)

Abstract:

Loading...

Carbonation (C), Pretreatment, Water content, Supplementary cementitious materials (SCM)

Proposal of a new pretreatment of accelerated carbonation for evaluating material potential

Number of pages: 53 Posted: 20 Jan 2026
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Chiba University, Hokkaido University, Hiroshima University, Niigata University and Nagoya University
Downloads 6 (1,635,165)

Abstract:

Loading...

Carbonation (C), Pretreatment, Water content, Supplementary cementitious materials (SCM)

9.

Mechanisms of Change in Accelerated Carbonation Progress in Cement Paste Under Different Relative Humidity Conditions

Number of pages: 46 Posted: 05 Dec 2024
affiliation not provided to SSRN, University of Tokyo, Chiba University, Hokkaido University, Hiroshima University, Niigata University and Nagoya University
Downloads 45 (1,121,190)

Abstract:

Loading...

Carbonation (C), Microstructure, Relative humidity, Calcium-Silicate-Hydrate (C-S-H)

10.

New Insight on the Thermal Impact on Cementitious Materials Due to High-Temperature with Water Supply: Continuous Expansive Spalling in Water

Number of pages: 26 Posted: 16 Apr 2024
Nagoya University, Tohoku University, Nagoya University, Nagoya University, Japan Atomic Energy Agency, Japan Atomic Energy Agency and Nagoya University
Downloads 45 (1,121,190)
Citation 1

Abstract:

Loading...

Cementitious materials, High temperature, Water immersion, Water vapor pressure, Lime expansion, Continuous expansive spalling

11.

Effects of Particle Size Distribution on the Performance of Calcium Carbonate Concrete

Number of pages: 30 Posted: 21 Mar 2022
affiliation not provided to SSRN, University of Tokyo, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Tokyo University of Science, affiliation not provided to SSRN and Nagoya University
Downloads 45 (1,121,190)

Abstract:

Loading...

(a)Reaction, (a)Thermal Treatment, (b)Particle Size Distribution, (c)Compressive Strength, (d)CaCO3

12.

Evaluation of Atmospheric CO2 Sequestration by 50-Year-Old Concrete Structures Based on 14C and 13C Measurements

Number of pages: 37 Posted: 22 Oct 2025
Nagoya University, affiliation not provided to SSRN, Nagoya University, Nagoya University, Nagoya University and Nagoya University
Downloads 44 (1,133,231)

Abstract:

Loading...

Carbonation, Total inorganic carbon, ¹⁴C, δ¹³C, limestone

13.

Anomalous Moisture Transport in Dried Cementitious Material: A Numerical Analysis

Number of pages: 74 Posted: 20 Feb 2024
Puttipong Srimook and Ippei Maruyama
Nagoya University and Nagoya University
Downloads 43 (1,145,425)

Abstract:

Loading...

anomalous moisture transport, Colloidal nature of C-S-H, Microcracks, Water uptake characteristic, Sigmoidal (S-shaped) curve

14.

Pozzolanic Reaction and Resultant Strength Development Mechanism of Natural Volcanic Glass Powder

Number of pages: 45 Posted: 08 May 2024
Yuqi Ren, Atsushi Tomoyose and Ippei Maruyama
affiliation not provided to SSRN, affiliation not provided to SSRN and Nagoya University
Downloads 42 (1,157,785)

Abstract:

Loading...

Pozzolan(E), Reaction(A), Blended cement (D), Kinetics (A), Physical Properties(C)

15.

Clinkering and Thermal Decomposition of Calcium Carbonates in Carbonated Tobermorites: Mechanism of Co2 Release in Low-Temperature Ranges

Number of pages: 77 Posted: 07 Apr 2025
Nagoya University, Nagoya University, Nagoya University, affiliation not provided to SSRN, University of Tokyo and Nagoya University
Downloads 40 (1,183,237)

Abstract:

Loading...

carbonation, Calcium carbonate polymorphs, Clinkering, Tobermorite, Wollastonite

16.

Mechanistic Insights into Accelerated Carbonation Fronts in Cement Pastes with Varying Ca/Si Ratios: The Roles of Water Transport and Microstructural Evolution

Number of pages: 53 Posted: 23 Jun 2025
affiliation not provided to SSRN, University of Tokyo, affiliation not provided to SSRN, Chiba University, Hokkaido University, Hiroshima University, Niigata University and Nagoya University
Downloads 39 (1,209,354)

Abstract:

Loading...

Carbonation (C), Water content, Calcium (alumino) silicate hydrate (C-(A)-S-H), Supplementary cementitious materials (SCM)

17.

Interaction of Cs and Sr with C–A–S–H and Carbonated C–A–S–H Phases: Experimental Study and Thermodynamic Modeling

Number of pages: 50 Posted: 24 Apr 2025
Hokkaido University, Fukushima Regional Center for the Japan Environmental and Children’s Study, Nagoya University, affiliation not provided to SSRN and Nagoya University
Downloads 39 (1,196,171)

Abstract:

Loading...

Calcium aluminosilicate hydrate (C−A−S−H), Accelerated C−A−S−H carbonation, Natural C−A−S−H carbonation, Aluminosilicate gel, Adsorption, Thermodynamic calculation

18.

Proposal for Standard Elemental Composition of Ordinary Concrete for Radiation Shielding Design

Number of pages: 41 Posted: 28 Feb 2025
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Nagoya University
Downloads 37 (1,222,651)

Abstract:

Loading...

Shielding calculation, Standard elemental composition, Water content, Concrete density, Concrete mix proportion, Silica aggregate, Void

19.

Mechanistic insights into carbonation shrinkage of hardened cement paste via RH-dependent pathways of decalcification and decomposition of C-A-S-H

Number of pages: 61 Posted: 19 Nov 2025
Niigata University, Chiba University, Hiroshima University, Hokkaido University, University of Tokyo and Nagoya University
Downloads 34 (1,277,121)

Abstract:

Loading...

carbonation shrinkage, decalcification, decomposition, Ca-modified silica gel, C-A-S-H

20.

Plugging Effect of Fine Pore Water in Opc and Lc3 Paste During Accelerated Carbonation Monitored Via Single-Sided Nuclear Magnetic Resonance Spectroscopy

Number of pages: 50 Posted: 24 Jun 2024
affiliation not provided to SSRN, University of Tokyo, Chiba University, Hokkaido University, Niigata University, Hiroshima University and Nagoya University
Downloads 33 (1,277,121)
Citation 1

Abstract:

Loading...

Acceleration (A), Carbonation (C), Calcium-Silicate-Hydrate (C-S-H) (B), Pore Size Distribution(B)

21.

Neutron Flux Impact on Rate of Expansion of Quartz

Number of pages: 45 Posted: 24 Sep 2024
Nagoya University, University of Tokyo - The University of Tokyo, Chiba University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 28 (1,345,526)

Abstract:

Loading...

Keywords: neutron flux, quartz, radiation-induced expansion, relaxation, healing

22.

Evaluation of Radiation-Induced Amorphization of Α-Quartz in Concrete Aggregates Using Raman Spectroscopy

Number of pages: 33 Posted: 12 Jul 2024
Capital University, University of Tokyo - The University of Tokyo, Chiba University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - Pacific Northwest National Laboratory and Nagoya University
Downloads 28 (1,345,526)

Abstract:

Loading...

Raman spectroscopy, X‐ray diffraction, neutron irradiation, meta-chert, sandstone, metamictization

23.

Relationship between Ion Irradiation-Induced Amorphization And Volume Expansion in Quartz and Feldspars for Concrete Aggregates

Number of pages: 14 Posted: 23 Jan 2024
University of Tokyo - The University of Tokyo, Nagaoka University of Technology, Nagoya University, Chiba University, University of Tokyo - Nuclear Professional School, Nagaoka University of Technology, affiliation not provided to SSRN and Nagoya University
Downloads 28 (1,345,526)

Abstract:

Loading...

Concrete aggregates, Ion irradiation, radiation induced volume expansion, amorphization, long term operation of nuclear power plants

24.

Reduction of Drying Shrinkage Via C-S-H Densification: The Role of Early-Age Thermal History

Number of pages: 45 Posted: 28 Mar 2025
Yuto Kanda, Ryo Kurihara and Ippei Maruyama
University of Tokyo, University of Tokyo and Nagoya University
Downloads 27 (1,359,097)

Abstract:

Loading...

Calcium silicate hydrate (C-S-H), Drying shrinkage, Curing temperature, Micropore structure, 1H-NMR Relaxometry

25.

Quantification of sequestered fossil-derived CO₂ in cementitious materials and its atmospheric contamination using carbon isotope measurements

Number of pages: 44 Posted: 12 Feb 2026
Nagoya University, affiliation not provided to SSRN, University of Tokyo, Nagoya University, affiliation not provided to SSRN and Nagoya University
Downloads 25 (1,399,036)

Abstract:

Loading...

Carbonation, carbon isotope, relative humidity, CO2 concentration, source tracing

26.

Evaluation of Long-Term Strength Development in Thick Concrete Walls Due to Reaction between Aggregate and Cement Paste

Number of pages: 39 Posted: 11 Jun 2024
Nagoya University, Nagoya University, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 25 (1,385,945)

Abstract:

Loading...

Concrete (E), Aggregate (D), Reaction (A), Long-term performance (C)

27.

Application of acid digestion-based total inorganic carbon measurement for carbonated cement-based materials

Number of pages: 42 Posted: 29 Aug 2025
affiliation not provided to SSRN, affiliation not provided to SSRN, Nagoya University, Nagoya University, Nagoya University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Nagoya University
Downloads 24 (1,399,036)

Abstract:

Loading...

Cement-based materials, CO2 measurement, Non-dispersive infrared spectroscopy, Acid digestion, Thermogravimetric analysis

28.

Semi-Dry Natural Carbonation at Different Relative Humidities: Degree of Carbonation and Reaction Kinetics of Calcium Hydrates in Cement Paste

Number of pages: 50 Posted: 16 Sep 2024
affiliation not provided to SSRN, University of Tokyo, Chiba University, Hiroshima University, Niigata University, Hokkaido University and Nagoya University
Downloads 23 (1,411,822)
Citation 1

Abstract:

Loading...

Degree of carbonation, kinetics, Phase assemblage, Relative humidity

29.

Shrinkage Reduction Mechanism of Low Ca/Si Ratio C-a-S-H in Cement Pastes Containing Fly Ash

Number of pages: 44 Posted: 20 Jun 2024
affiliation not provided to SSRN, University of Tokyo, Nagoya University, Nagoya University and Nagoya University
Downloads 17 (1,481,165)

Abstract:

Loading...

Calcium-Silicate-Hydrate (B), Drying (A), Shrinkage (C), Fly ash (D), cement paste (D)

30.

Full-Scale Observation of Drying-Induced Microstructure Change in Hardened Cement Paste by Water and 2-Propanol 1h-Nmr Relaxometry

Posted: 15 Jul 2024
Nagoya University, Nagoya University, Nagoya University, University of Tokyo, Chiba University and Nagoya University

Abstract:

Loading...

Calcium-Silicate-Hydrate (C-S-H) (B), Microstructure (B), Pore size distribution (B), Drying (A), Solvent replacement