Use of Lightweight Deflectometer for Evaluating in Situ Strength Characteristics of Pavement Foundations in Kerbala

2020 ◽  
pp. 185-196
Author(s):  
Rawq Al-Fattehallah ◽  
Alaa M. Shaban ◽  
Shakir Al-Busaltan
Keyword(s):  
Strength Characteristics ◽  
Pavement Foundations

Engineering Properties of Carbonate Marine Sediments

2011 ◽  
Author(s):  
Horst G. Brandes
Keyword(s):  
Water Content ◽  
Marine Sediments ◽  
Relative Abundance ◽  
Deep Sea ◽  
Deep Ocean ◽  
Strength Characteristics ◽  
Engineering Properties ◽  
Carbonate Content ◽  
Frictional Strength

Geotechnical properties of deep-sea sediments are examined in terms of their plasticity, compressibility and frictional strength characteristics, especially in terms of the relative abundance of carbonate and clay fractions. The effect of carbonate content in excess of 40% is to reduce Atterberg limits and compressibility, and to increase peak friction angles, compared to sediments from the deep ocean that have lower carbonate amounts. The presence of carbonate also tends to reduce flocculation and in situ water content.

In Situ Test Study on Shear Strength Properties of Weathered Silty Mudstone

2010 ◽  
Vol 146-147 ◽  
pp. 10-13 ◽  
Author(s):  
Zhang Ming Li ◽  
Liang Liang Chen ◽  
Feng Wu ◽  
Ling Wan
Keyword(s):  
Shear Strength ◽  
Maximum Shear Stress ◽  
Strength Properties ◽  
Strength Characteristics ◽  
Shear Strength Parameters ◽  
Silty Mudstone ◽  
Normal Loading ◽  
Test Study ◽  
The Given

The shear strength characteristics of rock are very concerned in related underground construction. In this paper, in situ direct shear test for the weathered silty mudstone of the direct rock mass in a large section tunnel is carried out, the shear strength parameters are obtained, and some laws on the strength characteristics of this rock are got, such as that the displacement corresponds to the maximum shear stress under the given normal is decreased with increasing of normal loading number. This work provides a reference for the study of rock strength theory and its application.

In-Situ Strength Characteristics of Soft Clays

1965 ◽  
Vol 91 (2) ◽  
pp. 49-80
Author(s):  
Iraj Noorany ◽  
H. Bolton Seed
Keyword(s):  
Strength Characteristics ◽  
Soft Clays

scholarly journals EFFECT OF THE MICROWAVE ELECTROMAGNETIC FIELD ON DEFECT FORMATION UNDER THE INFLUENCE OF ENVIRONMENTAL FACTORS IN CURED CARBON FIBER

2021 ◽  
pp. 34-36
Author(s):  
I. V. Zlobina
Keyword(s):  
Electromagnetic Field ◽  
Carbon Fiber ◽  
Environmental Factors ◽  
Defect Formation ◽  
Strength Characteristics ◽  
Interlaminar Shear ◽  
Kinetics Of ◽  
Maximum Stresses

The article presents the results of researches of influence of modification of the cured CFRP in a microwave electromagnetic field to change the kinetics of defect formation and strength characteristics under the influence of environmental factors, showed the increase of the maximum stresses interlaminar shear specimens after exposure in situ by 16,5% compared with the control.

Determination of the strength characteristics of jointed rocks in situ

1979 ◽  
Vol 15 (5) ◽  
pp. 453-456
Author(s):  
S. E. Chirkov ◽  
V. N. Popov ◽  
A. A. Mirzoyan
Keyword(s):  
Strength Characteristics ◽  
Jointed Rocks

Closure to “In-Situ Strength Characteristics of Soft Clays”

1966 ◽  
Vol 92 (3) ◽  
pp. 93-95
Author(s):  
Iraj Noorany ◽  
H. Bolton Seed
Keyword(s):  
Strength Characteristics ◽  
Soft Clays

scholarly journals In-situ Observation on Micro-Fractural Behavior and Strength Characteristics in Sn-4.0wt%Ag-0.5wt%Cu Solder Joint Interface

2008 ◽  
Vol 18 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Kyung-Keun Lee ◽  
Eun-Geun Choi ◽  
Yong-Ho Chu ◽  
Jin-Soo Kim ◽  
Byung-Soo Lee ◽  
...  
Keyword(s):  
Solder Joint ◽  
Strength Characteristics ◽  
Joint Interface ◽  
In Situ Observation

The in situ ply elasticity and strength in laminated composites

2020 ◽  
Author(s):  
A.I. Oleinikov ◽  
T.A. Kuzmina
Keyword(s):  
Strength Characteristics ◽  
Compression Tests ◽  
Thin Walled Structures ◽  
Calculation Results ◽  
Working Together ◽  
Real Behavior ◽  
Thin Walled ◽  
Design Calculations ◽  
Direct Tensile

When calculating thin-walled structures made of layered polymer composite materials (PCM), data obtained as data obtained from testing a corresponding separately cured unidirectional sheet is accepted as the elastic-strength characteristics of their monolayers. Properties of such sheet significantly differ from the characteristics of the monolayer polymerized and working together with adjacent layers of different orientations as part of a composite package. The article presents the results of solving the problem of determining the elastic and strength characteristics of monolayers according to the data of direct tensile — compression tests of PCM samples from witness parts. It considers PCM which monolayers have similar or diverse characteristics. Formulas are given for calculating the mechanical properties of monolayers as part of a multidirectional composite package. Comparison of calculation results with test data is carried out. The use of the actual characteristics of monolayers makes it possible to calculate the real behavior of the PCM in the structure, to link its verification and design calculations.

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