Article
Materials Science, Multidisciplinary
Can Tang, Junwei Liu, Wenfeng Hao, Yuanyuan Wei
Summary: Research was conducted on several types of lattice-reinforced cementitious composites, and it was found that graded lattice structures can enhance the maximum bending capacity of cement-based materials compared to uniform lattice structures. The graded lattice structures also improve their cracking characteristics and failure modes, while reducing the amount of required material.
MATERIALS & DESIGN
(2023)
Article
Engineering, Civil
Shan He, Shozab Mustafa, Ze Chang, Minfei Liang, Erik Schlangen, Mladena Lukovic
Summary: In this study, experiments and numerical simulations were conducted to investigate the cracking behavior of reinforced concrete beams with a thin layer of SHCC. A new type of SHCC/concrete interface was developed to activate SHCC effectively. The results showed that the hybrid beams with the new interface exhibited significantly improved cracking behavior compared to the control beams. The study highlights the strategic use of minimum amount of SHCC to enhance the performance of hybrid structures.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Jian Song, Mengqin Cao, Lianmin Cai, Yizhou Zhou, Junying Chen, Su Liu, Bo Zhou, Yang Lu, Jiaqing Zhang, Wujian Long, Lixiao Li
Summary: The study introduces a novel 3D core-framework lattice cementitious composite material, which combines printed polymeric framework with cement mortar to enhance ductility and specific strength, while also exhibiting low thermal conductivity. This innovative design approach holds significance in the field of building materials.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Materials Science, Ceramics
Junbo Sun, Farhad Aslani, Jenny Lu, Lining Wang, Yimiao Huang, Guowei Ma
Summary: A new fiber-reinforced high-performance lightweight engineered cementitious composite (LWECC) was proposed and thoroughly investigated for its fresh properties, compressive strength, and flexural strength, then calibrated through a printability assessment. The addition of hollow glass microspheres (HGMs) significantly improved the lightweight property of the material but inevitably negated mechanical properties. Superior toughness was observed when the printed filament was perpendicular to the loading direction, resulting in a 63% increase in compressive strength and a 40% increase in flexural strength.
CERAMICS INTERNATIONAL
(2021)
Article
Construction & Building Technology
Zequan He, Feng Ju, Pai Ning, Meng Xiao, Tengfei Wang, Dong Wang
Summary: This study investigates the effect of adding fibers on the performance of coal gangue cementitious composite (CGCC). It is found that the addition of fibers and an increase in curing age have a positive impact on improving the mechanical properties of CGCC. Furthermore, the presence of fibers enhances its ability to resist tensile failure.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Manufacturing
Yading Xu, Hongzhi Zhang, Yidong Gan, Branko Savija
Summary: Cementitious materials are commonly reinforced with steel rebars due to their low ductility, which can lead to corrosion problems. Polymeric reinforcement, which is corrosion-resistant, has been used as an alternative to steel rebars but typically requires a high reinforcing ratio. By utilizing 3D printing technology to create functionally graded polymeric reinforcement, the reinforcing ratio of cementitious composites can be greatly reduced while improving their mechanical properties. This study shows that 3D printed polymeric lattice structures can significantly enhance the ductility of cementitious composites, leading to a potential reduction in reinforcing ratio and improvement in mechanical performance.
ADDITIVE MANUFACTURING
(2021)
Article
Construction & Building Technology
Pengwei Guo, Yi Bao, Weina Meng
Summary: This study focuses on the role of glass in HPFRCC, aiming to reveal its effects on key properties and fundamental mechanisms, emphasizing the importance of using glass as a replacement for concrete components. By reviewing existing research and conducting a life cycle analysis, possible methods for developing HPFRCCs with glass particles are proposed.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Construction & Building Technology
Rodriguez-Marcos Maria, Villanueva-Llaurado Paula, Fernandez-Gomez Jaime, Lopez-Rebollo Jorge
Summary: This research compares FRCM systems with different carbon grids and using different mortars to evaluate the influence of grid and mortar on the mechanical properties of the reinforcement. Tensile tests with Digital Image Correlation were conducted, and the results indicate that systems with impregnated grid perform significantly better, especially when combined with high strength mortars. Improvement was observed in terms of ultimate tensile strength, crack spacing, trilinear stress-strain curve, and efficiency factor.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Aron Van Driessche, Dimitrios G. Aggelis, Eleni Tsangouri
Summary: The study tested novel thin-wall TRC shells under service loads and tracked damage modes using Acoustic emission (AE) wave parameters. It was found that stronger shell curvature leads to shear damage mode, monitored by early AE signals, while boundary conditions and textiles volume content also affect damage progress. The efficacy of AE inspection was critically assessed considering wave attenuation.
THIN-WALLED STRUCTURES
(2021)
Article
Construction & Building Technology
Arman Montazerian, Mohammad Hajmohammadian Baghban, Raghavendra Ramachandra, Stergios Goutianos
Summary: The potential reinforcement effect of graphene derivatives on cementitious composites has attracted significant attention. This study utilizes machine learning models to comprehensively explore the effect of graphene derivatives inclusion on the compressive strength of cementitious composites, considering various parameters. The results indicate that the artificial neural network model demonstrates superior prediction performance, and the lateral size of graphene derivatives and the dispersion technique have the highest impact.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Nan Zhao, Sheliang Wang, Xiaoyi Quan, Kangning Liu, Jin Xu, Fan Xu
Summary: This study investigates the performance of PVA fiber reinforced cementitious composites subjected to the combined action of sulphate and wet/dry cycles in a tidal environment. Results show that the durability properties decrease with the increase of fly ash and bentonite in Na2SO4(aq), while achieving the highest durability in water. The activity of the acoustic emission signal decreases continuously with the rise of fly ash and bentonite content, with small pores gradually connecting to form large pores during wet and dry cycles.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Mechanical
Xudong Chen, Jianhui Tang, Nan Zhang, Feng Dai, Mingdong Wei
Summary: This study comprehensively presents the fracture behavior of cracked rocks subjected to prepeak and postpeak cyclic loads. The experiments revealed that in prepeak loading-unloading cycles, deformation of the specimen gradually developed from elastic to elastic-plastic, with tension-dominated microcracking. In postpeak cycles, parameters such as horizontal strain and crack length generally increased cumulatively with the cycle number but locally decreased with unloading, while microcracks were still produced during unloading and shear-type AE signals increased.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2022)
Article
Materials Science, Textiles
Fayun Wei, Fan Yang, Kai Feng, Zhiqian Yang, Bin Yu, Hailou Wang, Wei Zhang
Summary: This study investigates the mechanical performances of woven tube-reinforced cementitious composites. The results show that using woven tubes can significantly enhance the compressive and bending strengths of the cementitious composites. The integrated woven tube-reinforced cementitious composite exhibits better energy absorption ability and integrity.
TEXTILE RESEARCH JOURNAL
(2023)
Article
Construction & Building Technology
Shahzad Ashraf, Magdalena Rucka
Summary: The study investigated the fracture evolution of polyolefin fibre-reinforced concrete (PFRC) and steel fibre-reinforced concrete (SFRC) specimens using acoustic emission (AE) and digital image correlation (DIC) techniques. It was found that adding steel fibres significantly improved crack restriction and post-cracking resistance compared to PFRC specimens due to stronger fibre-matrix bonding, effective fibre bridging, and crack-arresting mechanism. The combined AE and DIC techniques were highly effective for early damage detection and ductility performance evaluation in fibre-reinforced concrete structures.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Ji Woon Park, Bonhwi Choo, John E. Bolander, Yun Mook Lim
Summary: This study presents a lattice-based modeling technique to simulate the direct tensile behavior of textile reinforced cementitious composites under different loading conditions. The model results agree well with experimental results, demonstrating its effectiveness in describing the behavior of TRCC. The stress transfer formulation of the fiber-matrix interface is crucial for simulating crack patterns.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
