Results 221 to 230 of about 68,553 (259)

Drying-wetting cycles consistently increase net nitrogen mineralization in 25 agricultural soils across intensity and number of drying-wetting cycles

Science of The Total Environment, 2020
An increase in extreme weather events such as heavy rainfall and extreme drought causes intensive and frequent drying-wetting (DW) cycles, which have strong effects on the availability of nitrogen (N) for plant growth and development. How the effects of DW cycles on N turnover vary with the intensity and number of DW cycles and soil properties has not ...
Tianhui Lu, Yuhan Wang, Hansong Zhu, Xiaorong Wei, Mingan Shao   +4 more
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Evolution of mechanical behaviours of an expansive soil during drying-wetting, freeze–thaw, and drying-wetting-freeze–thaw cycles

Bulletin of Engineering Geology and the Environment, 2021
This paper investigates the volumetric, microstructural, and shear behaviours of an expansive soil during multiple drying-wetting (DW), freeze–thaw (FT), and drying-wetting-freeze–thaw (DWFT) cycles. Specimens compacted at natural moisture content and dry density were subjected to 1, 4, 6, and 10 DW, FT, or DWFT cycles. Volumetric changes were recorded
Gui-tao Zhao, Zhong Han, Wei-lie Zou, Xie-qun Wang   +3 more
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Interior Humidity of Concrete under Dry-Wet Cycles

Journal of Materials in Civil Engineering, 2012
The dry-wet cycle is one of the aggressive environmental conditions suffered by concrete. This paper focuses on the experimental study and theoretical simulation of water distribution in normal- and high-strength concrete through dry-wet cycles. The experimental results show that under dry-wet cycles, the variation in the interior humidity of concrete ...
Jun Zhang, Yuan Gao, Yudong Han
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Model of chloride penetration into cracked concrete subject to drying–wetting cycles

Construction and Building Materials, 2012
Abstract Drying and wetting cycles condition is always identified as the most unfavorable environment condition for reinforce concrete structure subjected to chloride-induced deterioration processes. When a crack occurs, it accelerates the ingress of chloride ions and affects durability.
Ye, Hailong, Jin, Nanguo, Fu, Chuanqing, Jin, Xianyu   +3 more
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Study on Dynamic Characteristics of Diorite Under Dry–Wet Cycle

Rock Mechanics and Rock Engineering, 2021
During the construction of tunnels in the central and western regions of China, diorite is frequently affected by vibration, blasting and water which will lead to the questions of the quality and operational safety of project. However, there are few studies on the dynamic characteristics of diorite under the action of dry–wet cycles.
Jiangbo Xu, Haohui Sun, Yilun Cui, Dongyang Fei, Hengxing Lan, Changgen Yan, Han Bao, Faquan Wu   +7 more
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Microstructural evolution of expansive clay during drying–wetting cycle

Acta Geotechnica, 2020
This paper presents a comprehensive investigation on the microstructural evolutions of expansive clay during a drying–wetting cycle, including pore size distribution (PSD) via mercury intrusion porosimetry and water distribution via nuclear magnetic resonance (NMR).
Tiantian Ma, Changfu Wei, Chuanqin Yao, Panpan Yi   +3 more
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Effects of Suction and Drying–Wetting Cycles on Shearing Response of Adobe

Journal of Materials in Civil Engineering, 2021
AbstractAdobe has been extensively used as a viable construction material in various hot and arid climatic regions throughout the world for several centuries.
Mohsen Monghassem, Mohsen Ajdari, Seyyed Mohammad Binesh, Farshid Vahedifard   +3 more
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Dry/wet cycling reduces spore germination and viability in six peatland bryophytes

Plant Biology, 2023
Abstract Dry/wet cycling driven by water level fluctuation in wetlands may strongly influence the destiny of seeds. However, how dry/wet cycling affects spore survival and germinability in peatland bryophytes is poorly understood. Six peatland bryophytes, three hummock‐ and three hollow‐dwelling Sphagnum species, were chosen as study species.
B.‐B. Fan, S. Yusup, S. Sundberg, Y.‐D. Chen, H.‐X. Qiao, S.‐S. Liu, Z.‐J. Bu   +6 more
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On the mechanical damage to tailings sands subjected to dry–wet cycles

Bulletin of Engineering Geology and the Environment, 2018
The safety of tailings ponds is considered to be one of the greatest environmental challenges in the field of energy and mining engineering. Impacted by factors such as rainfall infiltration, recycling water, dry beach face evaporation, tailings sands close to the saturation line in tailings ponds are subject to frequent dry–wet (DW) cycles.
Xingang Wang, Hongbing Zhan, Jiading Wang, Ping Li   +3 more
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Creep damage properties of sandstone under dry-wet cycles

Journal of Mountain Science, 2020
Rock creep properties can be used to predict the long-term stability in rock engineering. In reservoir bank slopes, sandstones which are frequently used in the bank slope undergoing long-term effects of dry-wet (DW) cycles due to periodic water inundation and drainage may gradually accumulate creep deformation, resulting in rock structure’s damage or ...
Xin-gang Wang, Bao-qin Lian, Jia-ding Wang, Wen-kai Feng, Tian-Feng Gu   +4 more
openaire   +1 more source