Article
Construction & Building Technology
Zefeng Tao, Yu Zhang, Xinran Chen, Xiaoming Gu
Summary: The stability and durability of the subgrade structure in seasonally frozen areas can be enhanced by adding cement and fiber to silty clay. Results show that the mechanical properties of the composite treated soil change significantly after the first freeze-thaw process, but tend to stabilize after six cycles. Different types and dosages of fiber have an impact on the performance of the composite treated soil, with polypropylene fiber showing better results than basalt fiber.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Saeid Jamshidvand, Alireza Ardakani, Afshin Kordnaeij
Summary: The study found that replacing cement with zeolite can enhance the strength of cement-stabilised sand samples, but all samples experienced reduced strength under multiple freeze-thaw cycles. The zeolite content and water content significantly affect the mechanical properties of the samples.
ROAD MATERIALS AND PAVEMENT DESIGN
(2022)
Article
Engineering, Marine
Na Li, Yalan Zhu, Fang Zhang, Sin Mei Lim, Wangyi Wu, Wei Wang
Summary: The study found that adding polypropylene fibers can increase the strength and ductility of cemented clay, improve its freeze-thaw resistance, and enhance frost resistance with increasing curing age. The mechanical performance of cemented clay is significantly improved by polypropylene fibers.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Polymer Science
Wensong Wang, Guansen Cao, Ye Li, Yuxi Zhou, Ting Lu, Binbin Zheng, Weile Geng
Summary: This study examines the mechanical properties of lime-stabilized basalt fiber-reinforced loess under freeze-thaw cycles. The results demonstrate that the addition of basalt fiber and lime enhances the strength of loess and improves its resistance to freeze-thaw damage. Additionally, it is found that there is a linear relationship between UCS and Vp, and Vp can be used to estimate UCS.
Article
Engineering, Geological
J. Zhang, A. Deng, M. Jaksa
Summary: The study showed that adding up to 1% fibers to micaceous soil can increase its compressive strength and material stiffness, while adding 1.5% fibers can further enhance ductility. Additionally, the combination of fibers with hydrated lime or slag-lime can further improve the strength and stiffness of micaceous soil.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Hazal Berrak Gencdal, Havvanur Kilic
Summary: This study investigates the use of microencapsulated phase change material (mPCM) to improve the mechanical properties of high-plasticity clayey silt soil under freeze-thaw cycles. The results show that the addition of mPCM decreases the unconfined compression strength (UCS) but maintains the soil strength during increasing freeze-thaw cycles, with higher mPCM content leading to increased soil strength. The inclusion of mPCM affects soil compression and increases settlement, although settlement remains constant with increasing freeze-thaw cycles. The optimal mPCM ratio for compression and strength behaviors is determined to be 10%.
Article
Environmental Sciences
Laila Taoufiq
Summary: The study evaluated the use of bottom ash in concrete, showing that it can impact compressive strength at early stages but the effect diminishes over time. Bottom ash can effectively replace cement and sand in concrete, positively affecting its performance.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Construction & Building Technology
Seyed Hadi Sahlabadi, Meysam Bayat, Mohsen Mousivand, Mohsen Saadat
Summary: The study investigates the effects of adding fibers on the mechanical behavior of cement-stabilized soil, showing that the addition of polypropylene fiber or basalt fiber can significantly increase soil strength. Specimens compacted at optimum moisture content exhibit better results compared to those prepared at other molding moisture contents.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Engineering, Geological
Weitong Xia, Qing Wang, Qingbo Yu, Meng Yao, Di Sun, Jing Liu, Zhou Wang
Summary: Freeze-thaw action has a severe impact on the engineering properties of soil in cold regions. An eco-friendly hydrophobic polymer was used to improve saline soil in a seasonally frozen region. While the treated soil showed an increase in strength and denser structure, successive freeze-thaw cycles resulted in a degradation of strength and toughness.
Article
Engineering, Environmental
Kaveh Roshan, Asskar Janalizadeh Choobbasti, Saman Soleimani Kutanaei, Alireza Fakhrabadi
Summary: In this study, the impact of lignosulfonate on soil and the improvement in its performance by adding fibers of different contents were explored. The results showed that adding lignosulfonate can enhance the durability of clayey sand, with samples containing 2% lignosulfonate resisting 12 freeze-thaw cycles. Furthermore, the addition of 0.4 and 0.8% fibers improved the behavior of the stabilized samples.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Civil
Youzhi Rao, Jiankun Liu, Dan Chang, Ekaterina Kravchenko
Summary: The study showed that microencapsulated phase change materials can reduce the temperature fluctuation rate of soil during freeze-thaw cycles and affect the soil strength. Different types of mPCM treatment led to diverse trends in unconfined compression strength of soil after freeze-thaw cycles, with the core-to-shell ratio strongly influencing soil strength.
TRANSPORTATION GEOTECHNICS
(2021)
Article
Green & Sustainable Science & Technology
Nazerke Sagidullina, Shynggys Abdialim, Jong Kim, Alfrendo Satyanaga, Sung-Woo Moon
Summary: The problem of weak ground conditions is becoming increasingly serious due to the rapid development of infrastructure. In cold regions, freeze-thaw cycling exacerbates the fragility of soils. The use of ordinary Portland Cement for soil stabilization is common, but it results in significant carbon dioxide emissions. Therefore, it is important to study the effectiveness of using Calcium Sulfoaluminate cement, which has a lesser carbon footprint, for soil treatment.
Article
Green & Sustainable Science & Technology
Ngiseng Seav, Kyoung Su Kim, Jae Hoon Kim, Seung Woo Lee, Young Kyu Kim
Summary: Coal bottom ash (CBA) is a by-product generated in the coal furnaces of thermal power plants. Many previous studies have focused on its application as a replacement for sand in conventional concrete and structural fill materials. Roller compacted concrete (RCC), a zero-slump concrete with better compressive strength, requires a large amount of sand. However, the use of CBA in RCC is limited. This study aims to evaluate the effect of CBA as a sand replacement in RCC in terms of strength and long-term performance.
Article
Biotechnology & Applied Microbiology
Lei He, Zhen Wang, Wen-bin Gu
Summary: Cement-based stabilization/solidification (S/S) technology is an effective and economical remediation method for immobilizing heavy metals in contaminated soils. This study found that the strength of solidified soil decreases with the increase of freezing and thawing cycles, and the toxicity leaching of the solidified soil is linearly related to porosity.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Crystallography
Junfeng Guan, Meng Lu, Xianhua Yao, Qing Wang, Decai Wang, Biao Yang, Huaizhong Liu
Summary: The research has shown that increasing cement content can improve the maximum dry density and optimum moisture content of cement stabilized coal gangue, thus enhancing its mechanical performance. After freeze-thaw cycles, moisture content and cement content are critical factors affecting the compressive strength loss rate of cement stabilized gangue.
Article
Engineering, Civil
Hamza Gullu, Recep Iyisan
JOURNAL OF EARTHQUAKE ENGINEERING
(2016)
Article
Engineering, Civil
Hamza Gullu, Hanifi Canakci, Ali Alhashemy
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2018)
Article
Engineering, Civil
Hamza Gullu, Halil Ibrahim Fedakar
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2018)
Article
Engineering, Civil
Hamza Gullu, Halil Ibrahim Fedakar
KSCE JOURNAL OF CIVIL ENGINEERING
(2017)
Article
Computer Science, Artificial Intelligence
Hamza Gullu
NEURAL COMPUTING & APPLICATIONS
(2017)
Article
Engineering, Civil
Hamza Gullu, Murat Karabekmez
ENGINEERING STRUCTURES
(2017)
Article
Engineering, Geological
Hamza Gullu
SOILS AND FOUNDATIONS
(2017)
Editorial Material
Engineering, Geological
Hamza Gullu
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2018)
Article
Construction & Building Technology
Hamza Gullu, Abdulkadir Cevik, Kifayah M. A. Al-Ezzi, M. Eren Gulsan
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Chemistry, Physical
Hanifi Canakci, Hamza Gullu, Ali Alhashemy
Article
Multidisciplinary Sciences
Hamza Gullu, Hanifi Canakci, Ali Alhashemy
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2019)
Article
Multidisciplinary Sciences
Hanifi Canakci, Hamza Gullu, Mohanad Isam Kwana Dwle
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2018)
Article
Engineering, Civil
Hamza Gullu, Halil I. Fedakar
GEOMECHANICS AND ENGINEERING
(2017)
Article
Construction & Building Technology
Hamza Gullu, Hanifi Canakci, Imad Fareeq Al Zangana
CONSTRUCTION AND BUILDING MATERIALS
(2017)