Results 31 to 40 of about 86,928 (306)

Optimizing Fiber Parameters Coupled with Chemical Treatment: PROMETHEE Approach [PDF]

open access: yes, 2017
In order to combat issues related to expansive soils, chemical stabilization augmented with use of synthetic fibers is gaining focus in recent times. However, in most of these applications, the practicing field engineers face difficulty in selecting the ...
Chittoori, Bhaskar   +2 more
core   +1 more source

Determining the unsaturated hydraulic conductivity of a compacted sand-bentonite mixture under constant volume and free-swell conditions [PDF]

open access: yes, 2008
Highly compacted sand-bentonite mixtures are often considered as possible engineered barriers in deep high-level radioactive waste disposals. In-situ, the saturation of these barriers from their initially unsaturated state is a complex hydro-mechanical ...
A.M. Tang   +26 more
core   +4 more sources

Potential phytotoxic and shading effects of invasive Fallopia (Polygonaceae) taxa on the germination of dominant native species [PDF]

open access: yes, 2011
Two species of the genus Fallopia (F. sachalinensis, F. japonica, Polygonaceae) native to Asia, and their hybrid (F. ×bohemica), belong to the most noxious plant invaders in Europe.
Jarošík, Vojtěch   +3 more
core   +3 more sources

Hydromechanical behavior of unsaturated expansive clay under repetitive loading

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2021
Compacted layers of expansive soils are used in different engineering projects, such as subgrades, engineered clay barriers, and buffers for radioactive waste disposal. These layers are exposed to a variety of stresses and wetting conditions during field
Ahmed M. Al-Mahbashi   +2 more
doaj   +1 more source

Expansive Soil Embankment Filling and Cutting Treatment Technology: A Systematic Review

open access: yesAdvances in Materials Science and Engineering, 2022
The characteristics of expansive soil, including over consolidation, swelling-shrinkage, fissures, and strength attenuation, can cause potential hazards in road construction, which are mainly manifested as subgrade swelling-shrinkage deformation and ...
Zhen Huang   +5 more
doaj   +1 more source

Investigating soil-water retention characteristics at high suctions using Relative Humidity control [PDF]

open access: yes, 2016
A technique for controlling relative humidity (RH) is presented, which involves supplying a sealed chamber with a continuous flow of air at a computer-regulated RH.
Ackerley, S   +5 more
core   +1 more source

Dynamic Behavior of Geosynthetic-Reinforced Expansive Soil under Freeze-Thaw Cycles

open access: yesAdvances in Civil Engineering, 2021
Expansive soil has a significant impact on the stability of many key construction projects in cold regions. To study the physical and mechanical properties of expanded soil under the condition of freeze-thaw cycle, cryogenic cyclic triaxial tests were ...
Zhongnian Yang   +6 more
doaj   +1 more source

An elastoplastic model for unsaturated expansive soils based on shakedown concept [PDF]

open access: yes, 2013
It is important to model the behaviour of unsaturated expansive soils subjected to hydromechanical loadings, because these wetting and drying cycles alter significantly their hydromechanical behaviour which may cause a huge differential settlement on the ...
Chazallon, C.   +2 more
core  

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Experimental study on engineering characteristics of composite improvement of expansive soil by using microbial technology

open access: yesYantu gongcheng xuebao, 2023
The expansive soil is one of the recognized challenges in the field of geotechnical engineering. Based on the microbial technology, combined with the improved materials such as lime, cement and fly ash, the experimental researches on the engineering ...
XIAO Jianzhang 1, LIU Yushan 1, WANG Di 2, LI Jian 1, WU Suaifeng 1, WANG Bo 1
doaj   +1 more source

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