A survey of visual transformers

Y Liu, Y Zhang, Y Wang, F Hou, J Yuan… - … on Neural Networks …, 2023 - ieeexplore.ieee.org
Transformer, an attention-based encoder–decoder model, has already revolutionized the
field of natural language processing (NLP). Inspired by such significant achievements, some …

High-temperature behavior of geopolymer mortar containing nano-silica

P Zhang, X Han, J Guo, S Hu - Construction and Building Materials, 2023 - Elsevier
Nano-silica (NS) can significantly improve the microstructure, mechanical properties, and
durability of metakaolin/fly ash-based geopolymer mortar (GPM). To investigate the high …

Correlations between unconfined compressive strength, sorptivity and pore structures for geopolymer based on SEM and MIP measurements

Z Zhu, W Huo, H Sun, B Ma, L Yang - Journal of Building Engineering, 2023 - Elsevier
The objective for this research was to investigated the unconfined compressive strength,
sorptivity, pore structures and their correlations of recycled concrete fine powder (RCFP) …

Effect of Single and Synergistic Reinforcement of PVA Fiber and Nano-SiO2 on Workability and Compressive Strength of Geopolymer Composites

P Zhang, S Wei, Y Zheng, F Wang, S Hu - Polymers, 2022 - mdpi.com
Geopolymer composites can be used as a proper substitute for ordinary Portland cement,
which can reduce carbon dioxide (CO2) emissions and make rational use of industrial …

Mechanical properties of nano-SiO2 reinforced engineered cementitious composites after exposure to high temperatures

P Zhang, Q Han, J Wu, Y Zhang, T Zhang - Construction and Building …, 2022 - Elsevier
In this work, the effects of nano-SiO 2 (NS), heating temperatures, and cooling measures on
the physical, mechanical, and microscopic properties of engineered cementitious …

[HTML][HTML] Effects of steel fibre type and dosage on abrasion resistance of concrete against debris flow

F Wu, Q Yu, X Chen - Cement and Concrete Composites, 2022 - Elsevier
The collision and friction between the coarse solid particle and the concrete surface are the
main reason for the abrasion damage of concrete structures caused by debris flow. Fibre …

[HTML][HTML] Characterization, factors, and fractal dimension of pore structure of fly ash-based geopolymers

Y Yang, B Wang, Q Yuan, D Huang, H Peng - Journal of Materials …, 2023 - Elsevier
Fly ash-based geopolymer is a new cementitious material with environmentally friendly
characteristics. Generally, the mechanical properties of cementitious materials are …

Surface cracking and fractal characteristics of cement paste after exposure to high temperatures

L Li, Y Zhang, Y Shi, Z Xue, M Cao - Fractal and Fractional, 2022 - mdpi.com
Destruction pattern analysis of building materials subjected to fire provide the basis for
strengthening, restoring the bearing capacity, and optimizing the function of the building …

Effects of calcium sulfate as activator on mechanical properties of PVA fiber reinforced cementitious composites with high-volume fly ash

Y Qi, Q Wang, H Luo, P He, Q Deng - Powder Technology, 2023 - Elsevier
In order to study the role of calcium sulfate as activator in cementitious composites, mixtures
with different calcium sulfate content ratios were designed. On the basis of satisfying the …

Crack fractal analysis of fractured polyethylene fiber reinforced alkali activated mortar under flexural load

L Li, JC Tao, Y Zhang, HX Sun, KV Yuen… - Construction and Building …, 2022 - Elsevier
Polyethylene fibers (PEF) are useful for manufacturing high tenacity concrete with strain
hardening and multi-cracking behavior. However, there are few quantitative studies on the …