Grout Spread and Injection Period of Silica Solution and Cement Mix in Rock Fractures

2017 ◽  
Vol 50 (9) ◽  
pp. 2365-2380 ◽  
Author(s):  
Mohamed El Tani ◽  
Håkan Stille
Keyword(s):  
Rock Fractures ◽  
Injection Period ◽  
Silica Solution ◽  
Grout Spread

scholarly journals Evaluation of the effects of additives on the properties of starch-based bioplastic film

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Olugbenga O. Oluwasina ◽  
Bolaji P. Akinyele ◽  
Sunday J. Olusegun ◽  
Olayinka O. Oluwasina ◽  
Nelcy D. S. Mohallem
Keyword(s):  
Tensile Strength ◽  
Food Packaging ◽  
Surface Topology ◽  
Root Mean Square Roughness ◽  
Starch Solution ◽  
Dialdehyde Starch ◽  
Force Microscopy ◽  
Silica Solution ◽  
The One ◽  
Bioplastic Film

AbstractThe adverse environmental effects of petroleum-based packaging plastics have necessitated the need for eco-friendly bioplastics. Most bioplastics are starch-based and are not without drawbacks, hence there is the need for their properties to be improved. In this study, the effect of varying concentrations of dialdehyde starch and silica solutions on the physical, mechanical, biodegradable, surface topology, and thermal properties of the bioplastic films was examined. The additive concentrations were varied from 60 to 100%. The bioplastic films produced with dialdehyde starch solution recorded better moisture content (6.62–11.85%), bioplastic film solubility (4.23–7.90%), and tensile strength (1.63–3.06 MPa), against (11.24–14.26%), (7.77–19.27%) and (0.53–0.73 MPa) respectively for bioplastic films produced with silica solution. The atomic force microscopy analysis; root-mean-square roughness, kurtosis, and skewness revealed better miscibility and compatibility between the starch matrix and the dialdehyde solution than between the starch matrix and the silica solution. Bioplastic with added dialdehyde starch solution has better tensile strength and long biodegradability than that with silica solution. The research has demonstrated that bioplastic film produced with starch and dialdehyde starch solution has better properties than the one produced with starch and silica solution. The properties evaluation results of the bioplastic films thus demonstrated their aptness for food packaging applications. Graphic abstract

scholarly journals Hydro-mechanical measurements and x-ray imaging of sheared crystalline rock fractures from EGS Collab experiments 1 & 2

2021 ◽  
Author(s):  
Meng Meng ◽  
Luke P Frash ◽  
Wenfeng Li ◽  
Nathan J Welch ◽  
James William Carey ◽  
...  
Keyword(s):  
Crystalline Rock ◽  
Rock Fractures ◽  
X Ray ◽  
Mechanical Measurements ◽  
X Ray Imaging

Strength improvement of rock fractures and aggregates cemented with bio-slurry

2021 ◽  
pp. 130866
Author(s):  
Chuangzhou Wu ◽  
Zhichao Song ◽  
Bo-An Jang ◽  
Hong-Gyu Song ◽  
Pengpeng Ni
Keyword(s):  
Rock Fractures ◽  
Strength Improvement

Grouting characteristic in rock fractures with rough surfaces: apparatus design and experimental study

Measurement ◽  
2021 ◽  
pp. 109870
Author(s):  
Xiaochen Wang ◽  
Fei Xiao ◽  
Qingsong Zhang ◽  
Annan Zhou: ◽  
Rentai Liu
Keyword(s):  
Experimental Study ◽  
Rough Surfaces ◽  
Rock Fractures ◽  
Apparatus Design

Experimental Validation of Modified Barton’s Model for Rock Fractures

2010 ◽  
Vol 43 (5) ◽  
pp. 597-613 ◽  
Author(s):  
Pooyan Asadollahi ◽  
Marco C. A. Invernizzi ◽  
Simone Addotto ◽  
Fulvio Tonon
Keyword(s):  
Experimental Validation ◽  
Rock Fractures
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