Mechanochemical activation for transforming bottom ash to reactive supplementary cementitious material

H Kang, J Yang, S Kim, A Lim, J Moon - Construction and Building Materials, 2024 - Elsevier
Due to the intrinsic low reactivity of bottom ash (BA), it is not typically used as a direct
substitute for ordinary Portland cement (OPC). In this study, a BA-OPC composite was …

Assessment of crack repairing in concrete using air-coupled surface-wave technique: Experimental and numerical investigations

E Ahn, C Kim, H Choi, M Shin - Construction and Building Materials, 2024 - Elsevier
This study aimed to investigate the effectiveness of air-coupled surface-wave techniques for
the evaluation of crack-repairing (filling) progress in concrete. Experimental tests were …

[HTML][HTML] Augmented Data-Driven Approach towards 3D Printed Concrete Mix Prediction

SU Rehman, RD Riaz, M Usman, IH Kim - Applied Sciences, 2024 - mdpi.com
Formulating a mix design for 3D concrete printing (3DCP) is challenging, as it involves an
iterative approach, wasting a lot of resources, time, and effort to optimize the mix for strength …

Influence of aggregate size on relative velocity change of high-frequency ultrasound in progress of concrete curing

G Chandam, E Ahn, M Shin - Construction and Building Materials, 2024 - Elsevier
Previous research revealed that wave interferometry can be more effective than existing
ultrasonic techniques in monitoring the strength development of early-age concrete. To …

Durability study of Portland cement blended with metakaolin from thermodynamic modeling

J Lee, A Lim, J Kim, J Moon - Journal of Building Engineering, 2024 - Elsevier
The addition of metakaolin to Portland cement (PC) can increase chloride binding but is
vulnerable to carbonation. The durability issues against such a coupled effect remain …

Investigation on the Micro-Grinding Induced Crystallographic Variations of Nine Different Clinkers

H Kang, J Lee, JB Park, J Moon - International Journal of Concrete …, 2024 - Springer
Although clinker has been used for many years, complicated mineralogical properties of
clinker pose challenges for the precise quantification. In this study, the mineralogical and …

Evaluation of in-place strength and stiffness development in concrete structures using non-destructive test methods

S Bae, GS Jeong, YJ Kim, WK Oh… - Journal of Structural …, 2024 - Taylor & Francis
This study investigates the effectiveness of two widely used non-destructive assessment
techniques–rebound hardness and ultrasonic pulse velocity–in evaluating the in-place …

Evaluation of internal void related defects in reinforced concrete slab using electromagnetic wave properties

M Kang, J Hong, T Lee, D Kim, H Choi - Earthquake Engineering and …, 2024 - Springer
This study aims to develop a damage-detection algorithm based on the electromagnetic
wave properties inside a reinforced concrete structure. The proposed method involves …

The research on the technical state of retaining walls of hydro schemes in the Jonava district

V Narkus, R Šadzevičius, T Sankauskienė… - … : Proceedings of the …, 2023 - ejournals.vdu.lt
There are 12 ponds in the Jonava district territory and 3 ponds in the Rukla military base
territory. All dams in the district were built in 1978–1989 for irrigation, recreation, fisheries …

The research on the deterioration of reinforced concrete structures functioning in the varying water level areas of hydraulic structures

R Šadzevičius, R Skominas… - … : Proceedings of the …, 2023 - ejournals.vdu.lt
There are a few hydraulic structures in Lithuania where reinforced concrete structures are
used. The technical state of reinforced concrete structures is varying. Several structures …