Results 51 to 60 of about 8,374 (273)

Analysis of changes in volume and propagation of cracks in expansive soil due to changes in water content [PDF]

Revista Brasileira de Ciência do Solo, 2020
Expansive clay soils are a problem for agriculture and engineering because they are susceptible to change in volume due to seasonal variation in water content and temperature.
Silvio Romero de Melo Ferreira, Arthur Gomes Dantas de Araújo, Felipe Araújo Silva Barbosa, Thalita Cristina Rodrigues Silva, Izabela Medeiros de Lima Bezerra   +4 more
doaj   +1 more source

Study on Hygroscopic Swelling and Dehumidification Cracking Characteristics of Expansive Soil under Acid Rain and Cyclic Drying-Wetting

Advances in Civil Engineering, 2021
In this study, to reveal the swelling and cracking characteristics of expansive soil subjected to cyclic drying-wetting of acid rain, the effects of acid rain and cyclic drying-wetting on the swelling deformation of expansive soil were studied by using ...
Jin Chang, Jie Xiao, Jian-Qing Jiang, Rui Zhang, Xi-Long Kuang, Ming Lei, He-Ping Yang   +6 more
doaj   +1 more source

Freeze-drying modeling and monitoring using a new neuro-evolutive technique [PDF]

, 2012
This paper is focused on the design of a black-box model for the process of freeze-drying of pharmaceuticals. A new methodology based on a self-adaptive differential evolution scheme is combined with a back-propagation algorithm, as local search method ...
Fissore, Davide, Drăgoi E. N., Curteanu S., Curteanu, S., Drăgoi, E.N.   +4 more
core   +1 more source

Experimental study on fully softened shear strength of expansive soil

Yantu gongcheng xuebao, 2020
The fully softened strength tests are carried out on the expansive soil samples from the Yangtze-Huaihe River Water Transfer Project. The fully softened strength indexes under different moisture contents and shear rates are discussed and analyzed.
ZHANG Kun-yong 1, 2, XU Na 2, CHEN Shu 3, ENAMULLAH Baba Kalan 2, XIE Yu-fei 4
doaj   +1 more source

Simulation of moisture variations in concrete during prolonged alternate wetting and drying cycles using 3D discrete network model

Case Studies in Construction Materials, 2023
The precise prediction of moisture variations within concrete is of great significance because various deterioration phenomena spanning corrosion to carbonation are induced by mass transfer facilitated by the presence of moisture.
Dheeraj Waghmare, Dawei Ren, Punyawut Jiradilok, Kohei Nagai   +3 more
doaj   +1 more source

Study on Crack Development and Micro-Pore Mechanism of Expansive Soil Improved by Coal Gangue under Drying–Wetting Cycles

Materials, 2021
Expansive soil is prone to cracks under a drying–wetting cycle environment, which brings many disasters to road engineering. The main purpose of this study is use coal gangue powder to improve expansive soil, in order to reduce its cracks and further ...
Hongxing Zhu, Yan Zhang, Zhuhan Li, Xiaoyu Xue   +3 more
semanticscholar   +1 more source

Influence of Dry-Wet Cycles on the Structure and Shear Strength of Loess

Sustainability, 2023
The dry-wet cycle is an important factor that causes slope instability and foundation settlement in loess regions. In order to study the effects of the dry-wet cycle on the structure and shear strength of loess, isotropic compression tests and triaxial shear tests were carried out on loess with different numbers of dry-wet cycles. The results show that
Xiaoliang Wang, Hongru Li, Yue Zhong, Longfei Zhang, Xi Yang, Xiaoning Han, Zaiqiang Hu   +6 more
openaire   +1 more source

Long-term properties and microstructure change of engineered cementitious composites subjected to high sulfate coal mine water in drying-wetting cycles

, 2021
The mine water environment in underground reservoirs poses great threat to the durability of artificial concrete dams, mainly due to the coupled sulfate and drying-wetting cycles.
Zhen-bo Wang, P. Sun, J. Zuo, Chang Liu, Yudong Han, Zishan Zhang   +5 more
semanticscholar   +1 more source

Experimental study on the disintegration of granite residual soil under the combined influence of wetting–drying cycles and acid rain

Geomatics, Natural Hazards & Risk, 2019
Granite residual soil has obvious disintegration characteristics, resulting in serious water and soil losses in South China. There is a lack of studies on the disintegration of granite residual soil.
Weiping Liu, Xinqiang Song, Faming Huang, Lina Hu   +3 more
doaj   +1 more source

Investigation of Changes to Triaxial Shear Strength Parameters and Microstructure of Yili Loess with Drying–Wetting Cycles

Materials, 2021
This research examined the drying–wetting cycles induced changes in undrained triaxial shear strength parameters and microstructural changes of Yili loess. The drying–wetting cycles were selected as 0, 1, 3, 5, 10, 20 and 30.
Ruihua Hao, Zizhao Zhang, Zezhou Guo, Xuebang Huang, Qianli Lv, Jiahao Wang, Tianchao Liu   +6 more
semanticscholar   +1 more source