Article
Engineering, Civil
Raimundo Francisco Perez Leon, Juan Felix Rodriguez Rebolledo, Bernardo Caicedo Hormaza
Summary: This study obtained the mechanical parameters of an artificial reconstituted soft soil for centrifuge modelling and calibrated it with the hardening soil (HS) model. The reconstituted soil mimicked most natural lacustrine deposits of soft soils, making it suitable for finite element analysis.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Adil A. M. Elhassan, Mohammed Mnzool, Hichem Smaoui, Abir Jendoubi, Bushra M. E. Elnaim, Maged Faihan Alotaibi
Summary: The impact of clay mineralogy on engineering properties, such as strength and stiffness, of road materials is investigated in this study. It is found that kaolinite is more effective than montmorillonite in reducing clay plasticity, and samples with high kaolinite content exhibit higher strength indicators. Additionally, kaolinitic soil samples have a larger constrained modulus than other samples.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Geological
Raksiri Sukkarak, Suched Likitlersuang, Pornkasem Jongpradist, Pitthaya Jamsawang
Summary: This study introduces a procedure to determine the strength and stiffness parameters of rockfill materials for characterization with the Hardening Soil (HS) model. Parameters can be obtained based on triaxial and oedometer test results, and the procedure is applicable to various rockfill materials.
SOILS AND FOUNDATIONS
(2021)
Article
Engineering, Civil
Chia Zarei, Fangtong Wang, Pu Qiu, Peipei Fang, Yong Liu
Summary: The addition of albumen has been found to effectively improve the stability and engineering properties of soil, enhancing the compressive and tensile strength of treated soils. Treated soils exhibit a more stable and less deformable structure, along with reduced settlements compared to untreated soils.
KSCE JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Construction & Building Technology
Aruz Petcherdchoo, Sakol Pochalard, Keeratikan Piriyakul
Summary: This study aims to determine the initial shear modulus and unconfined compressive strength of Bangkok soft clay improved by OPC and FA. The results show that the optimum FA replacement for the initial shear modulus is 20% at 90 days, while for the unconfined compressive strength, it is 15% at 90 days. Both the initial shear modulus and unconfined compressive strength increase with curing time. The relationship between normalized unconfined compressive strength and curing time is logarithmic with an increase rate of 0.3433.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Engineering, Geological
Zewen Wang, Wenhan Du, B. M. Lehane
Summary: This paper presents a new, simple, and inexpensive method for accurately measuring the three-dimensional deformation of soil specimens during triaxial tests. The method utilizes a cost-effective image capture system and an automated post-image analysis approach. The system achieves high accuracy in measuring axial and radial displacements, and it can determine the full nonlinear stiffness-strain degradation of soil samples without the need for additional sensors.
Article
Engineering, Geological
Takayuki Sakai, Masaki Nakano
Summary: The study found that cement-treated clay and sand exhibit different consolidation behaviors, with cement-treated loose sand showing no softening behavior. The degree of structure and overconsolidation ratio of the soil increase with higher amounts of admixed cement.
SOILS AND FOUNDATIONS
(2021)
Article
Engineering, Geological
Abulimilti Ayizula, Jinyuan Liu
Summary: This study investigated the compressibility of clay deposits in Toronto, Canada, using an inverse analysis method. By calibrating the stiffness parameters of the Hardening Soil model with oedometer test results, the simulated stress-strain curves were fitted to the actual data. Sensitivity analysis and statistical analysis were performed to simplify the problem and derive prediction formulas for estimating compressibility parameters based on soil index properties and standard penetration tests.
SOILS AND FOUNDATIONS
(2023)
Article
Engineering, Geological
Toralv Berre, Tom Lunne, Jean-Sebastien L'heureux
Summary: A method for determining false deformation is presented in this paper to correct for sample disturbance during hydraulic testing.
CANADIAN GEOTECHNICAL JOURNAL
(2022)
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Chemistry, Multidisciplinary
Lan Cui, Wenzhao Cao, Qian Sheng, Mingxing Xie, Tao Yang, Ping Xiao
Summary: By experiment and simulation, the performance of layered geogrid-sand-clay reinforced structures was studied, showing that laying sand layers and embedding geogrids in sand layers can improve the mechanical properties of the structure and increase the shear strength index.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Geological
Manuela Correa-Silva, Mohamed Rouainia, Tiago Miranda, Nuno Cristelo
Summary: This study focuses on the geomechanical behavior of low performing soils strengthened with alkali-activated materials, specifically NaOH-activated blast furnace slag, after short and long curing periods. Triaxial compression experiments were conducted to investigate the behavior of the stabilized soil, and a kinematic hardening constitutive model was calibrated and successfully captured the behavior of artificially stabilized sandy clay. The results showed similarities to cement-mixed clays and the model accurately predicted the elastoplastic transition, peak/residual shear strains, and strain-softening behavior after peak strengths in the soil specimens.
ENGINEERING GEOLOGY
(2021)
Article
Construction & Building Technology
Armen Ter-Martirosyan, Vitalii Sidorov, Evgeny Sobolev
Summary: This research examines the mechanical properties of soil-cement specimens under dynamic loading, ranging from ultrasmall to large shear strains. It investigates the nonlinear behavior of soil cement under changing shear strains and proposes dependency relationships for stiffness and damping. This study is important for engineering calculations related to soil-cement.
Article
Engineering, Geological
Min-Chien Chu, Louis Ge
Summary: A large earthquake may lead to excess pore water pressure in soils, resulting in stiffness degradation and noticeable deformation. The average axial strain in the first cycle was found to determine the degradation path of soils. Excess pore water pressure is usually considered to weaken soils.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Geological
Kai Liu, Wen-Bo Chen, Jian-Hua Yin, Wei-Qiang Feng, Lalit Borana
Summary: Limited studies have been conducted on the development of testing apparatus for unsaturated soils due to their complex structure and demanding calibration process. A novel multifunctional apparatus (MFA) has been designed in this study, which is capable of conducting various tests under suction-controlled conditions. The MFA has shown reliable performance in accurately investigating the engineering behavior of both saturated and unsaturated geomaterials.
Article
Construction & Building Technology
Tidarut Wisuthseriwong, Pongsakorn Tongmanee, Pitcha Jongvivatsakul, Suched Likitlersuang
Summary: This article investigates an improvement of placing steel stirrups in shear deficient PC sleepers commonly used in railways of Thailand. The experimental results show that adding steel stirrups can significantly improve the peak load and failure deformation of PC sleepers, as well as change the failure modes. Moreover, deformed-bar stirrups exhibit better performance than rounded-bar.
STRUCTURAL CONCRETE
(2023)
Article
Engineering, Geological
Tan Phong Ngo, Akihiro Takahashi, Suched Likitlersuang
Summary: This study examines the ability of a new material, GCCM, to reinforce soil slopes. The results show that GCCM reinforcement can reduce slope displacement and delay the increase in pore-water pressure, consequently reducing hydraulic forces on the slope. This indicates that GCCM has good potential for slope reinforcement.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2023)
Article
Education & Educational Research
Liyuan Wang, Meiping Huang, Xiaohua Zhang, Xueyuan Yan, Ruoyu Jin, Dariusz Wanatowski, Ali Cheshmehzangi, Navpreet Chohan
Summary: This pedagogical study demonstrates the application of Building Information Modelling (BIM) in the final semester project of construction engineering and management students. It examines students' perceptions of BIM and the project, and provides insights on linking education to practice. The study also explores the incorporation of educational theories into BIM education through the design of different project deliverables.
EUROPEAN JOURNAL OF ENGINEERING EDUCATION
(2023)
Article
Engineering, Geological
Phadungsak Hong-in, Suraparb Keawsawasvong, Van Qui Lai, Thanh Son Nguyen, Weeradetch Tanapalungkorn, Suched Likitlersuang
Summary: The seismic stability of 3D undrained clay slopes under pseudo-static seismic load is investigated using finite element limit analysis. The FELA solutions are normalized and presented using a seismic stability number influenced by four dimensionless variables. The influence of a horizontal seismic acceleration coefficient on the mechanisms of 3D slope failures based on FELA is examined and discussed for the first time. The respective influence and sensitivity of each design parameter on the seismic stability number are investigated, and a predicted equation is developed for estimating the seismic stability number.
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2023)
Article
Education & Educational Research
Sherif Welsen, Dariusz Wanatowski, Duo Zhao
Summary: This paper investigates the impact of digital reading on science and engineering students' learning experience during educational disruption. The findings reveal that students in these fields have a positive attitude towards digital reading and are willing to develop relevant skills.
EDUCATION SCIENCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Yifan Fei, Wenjie Liao, Xinzheng Lu, Hong Guan
Summary: In this study, a novel graph neural network (GNN) is proposed for the estimation of construction material quantity (CMQ) in structural design. The GNN is capable of automatically extracting features from all CMQ-related information, unlike existing data-driven methods. By incorporating a prior knowledge inclusion strategy, the GNN avoids fundamental errors encountered by purely data-driven methods. Numerical experiments show that the proposed CMQ estimation method outperforms existing data-driven methods in terms of accuracy and is significantly faster. This study is expected to have a positive impact on the objective evaluation of computer-aided design, promoting the adoption of low-cost and low-carbon-emission building designs.
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Construction & Building Technology
Peem Nuaklong, Kantipok Hamcumpai, Suraparb Keawsawasvong, Sirichai Pethrung, Pitcha Jongvivatsakul, Sawekchai Tangaramvong, Thanyawat Pothisiri, Suched Likitlersuang
Summary: This study explored the mechanical properties and post-fire performance of alkali-activated fly ash (AAF) concrete with the addition of granite industry waste (GW) and polypropylene (PP) fibers. The effects of different proportions of GW and PP fibers on the compressive strength, flexural load-deflection response, and toughness of the concrete were investigated. The results showed that the inclusion of PP fibers improved the flexural performance of AAF concrete, and the optimal replacement percentage of GW was found to be 25%. After exposure to fire, extensive cracking was observed in the inner core of the AAF concrete, especially in the fiber-reinforced concrete containing GW.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Zidong Zhao, Xiaowei Cheng, Yi Li, Mengzhu Diao, Hong Guan, Yi An
Summary: This study investigates the collapse resistance behavior of beam-column joints using dry connections. Results show that the strengthened top-seat angle connection improves resistance to beam flexural and compressive arch action (B-CAA), but reduces ductility. The presence of unbonded post-tensioning tendons significantly enhances the collapse resistance of the joints.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Yudi Zhang, Xiaowei Cheng, Mengzhu Diao, Yi Li, Hong Guan, Hailin Sun
Summary: Fibre-reinforced polymer (FRP) strips are widely used for retrofitting reinforced concrete (RC) frame structures to improve their resistance against progressive collapse. However, existing FRP retrofitting schemes may lead to an undesirable strong-beam weak-column mechanism in seismic scenarios. This study optimized existing FRP retrofitting schemes using numerical investigation and identified effective schemes that improve the structural performance against progressive collapse at large deformations while maintaining the strong-column weak-beam mechanism during seismic events. Based on parametric analyses, analytical methods were proposed to calculate the strength of FRP retrofitted RC frames under a catenary mechanism, allowing for the design of such structures.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Le Hang, Kritcha Karunkritkul, Wanakorn Prayoonwet, Tidarut Jirawattanasomkul, Suched Likitlersuang, Boonchai Stitmannaithum, Punchet Thammarak
Summary: This study evaluates the dynamic characteristics of an abandoned reinforced concrete building with structural deterioration and defects in its precast and cast in-situ walls. Using ambient vibration and forced excitation, the dynamic characteristics (i.e., modal frequency, modal damping, and strain patterns) were extracted to evaluate existing performances. The results show that the measured modal frequency was smaller than the numerical analysis, indicating degraded stiffness due to existing cracks at joint connections. The measured strain patterns and neutral axis location were also compared with the analytical results, providing potential indicators for identifying local imperfections.
STRUCTURAL CONCRETE
(2023)
Article
Materials Science, Multidisciplinary
Thanakorn Chompoorat, Suched Likitlersuang, Phermphorn Buathong, Pornkasem Jongpradist, Pitthaya Jamsawang
Summary: This paper investigates the influence of palm fiber on the flexural performance and microscopic characterization of cement-treated sands. The results show that palm fibers can change the brittle behavior of cement-treated sands to semi-ductile or ductile, and improve their flexural performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Construction & Building Technology
Pattharaphon Chindasiriphan, Peem Nuaklong, Suraparb Keawsawasvong, Chanachai Thongchom, Tidarut Jirawattanasomkul, Pitcha Jongvivatsakul, Weerachart Tangchirapat, Suched Likitlersuang
Summary: This study investigated the mechanical properties of alkali-activated fly ash (AAF) mortars containing superabsorbent polymers (SAPs) and polypropylene (PP) fibers before and after exposure to elevated temperatures. The results show that the SAPs caused increased macroporosity and a slight decrease in compressive strength at room temperature, while maintaining flexural strength through internal curing. PP fibers enhanced flexural capacity, but had a negligible effect on compressive strength over time. The SAPs effectively preserved residual compressive and flexural strengths after exposure to 300 degrees C, while the PP fibers had diminished residual strength due to the excessive formation of cavities from melted fibers.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Hafiz Waheed Iqbal, Kantipok Hamcumpai, Peem Nuaklong, Pitcha Jongvivatsakul, Suched Likitlersuang, Chatpan Chintanapakdee, Anil C. Wijeyewickrema
Summary: The effect of graphene nanoplatelets (GNPs) on the mechanical properties, workability, and microstructure of fly ash-based geopolymer concrete containing crumb rubber (CR) was investigated. GNPs inclusion mitigated the negative effects of CR and significantly enhanced the properties of the geopolymer concrete. Multi-objective optimization with response surface methodology (RSM) was accomplished for the combined use of CR and GNPs.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Civil
Pornpen Limpaninlachat, Atichon Kunawisarut, Linh Van Hong Bui, Tidarut Jirawattanasomkul, Pitcha Jongvivatsakul, Suched Likitlersuang
Summary: The purpose of this study is to determine the optimum shape of ultra-high performance concrete (UHPC) segmental joints under flexural conditions and to investigate the flexural and shear capacities of UHPC segments connected by optimum segmental joints. The results show that the most effective joint shape is the 45 degrees key joint. The experimental results indicate that by inducing the prestressing forces, both flexural and shear performance predominantly increase.
Proceedings Paper
Construction & Building Technology
Mengzhu Diao, Hong Guan, Huizhong Xue, Yi Li, Xinzheng Lu
Summary: This study investigates the load-resisting and deformation capacities of reinforced concrete flat plate structures under punching shear and post-punching failure conditions. The results show that the punching shear capacity is determined by the geometric dimensions of the slab, while the post-punching strength is primarily regulated by the integrity rebars going through the column.
PROCEEDINGS OF THE 17TH EAST ASIAN-PACIFIC CONFERENCE ON STRUCTURAL ENGINEERING AND CONSTRUCTION, EASEC-17 2022
(2023)
