Discuss on Highly Weathered Metamorphic Fillers as Soft Stone Fillers

2010 ◽  
Vol 168-170 ◽  
pp. 264-269
Author(s):  
Ling Yun Yang ◽  
Feng Xue ◽  
Jun Huang ◽  
Chao Qun Hou
Keyword(s):  
Rock Strength ◽  
Highway Construction ◽  
Evaluation Criteria ◽  
Rock Structure ◽  
Strength Tests

In order to discuss on highly weathered metamorphic fillers as soft stone fillers，firstly the CBR tests for analysis on viability as embankment filler are conducted on three different highly weathered metamorphic fillers. Secondly the rock strength tests and particle broken tests are processed to study on how weathered degree and rock structure have an effect on them. Based on the above conclusions, evaluation criteria are proposed that have certain guidance and reference on mountainous highway construction.

scholarly journals Evaluation Criteria of Wax Pattern Strength Tests and their Role in Forecasting the Shape Accuracy of Wax Patterns

2013 ◽  
Vol 13 (4) ◽  
pp. 49-52
Author(s):  
R. Haratym ◽  
R. Biernacki ◽  
J. Lewiński ◽  
J. Kwapisz
Keyword(s):  
Bending Strength ◽  
Evaluation Criteria ◽  
Hardness Test ◽  
Test Methods ◽  
Test Method ◽  
Shape Accuracy ◽  
Bending Tests ◽  
Hardness Tests ◽  
Wax Pattern ◽  
Strength Tests

Abstract This research paper will present and analyze selected testing of wax patterns - bending strength test, test of resistance to creep and penetration hardness test. Evaluation of these tests will be carried out in terms of the shape accuracy of wax patterns. Additionally, statistical evaluation will be carried out of relationships between selected parameters of previously mentioned tests. Standard bending tests will be statistically evaluated and compared with two other test methods conducted on corresponding patterns. Particular attention will be given to creep resistance, which is a very useful test method for assessing changes in the shape of complex patterns in the function of time and temperature. At the same time an evaluation of hardness tests of wax patterns will be carried out with usage of appropriate samples or by direct examination of the production patterns.

Transformation of evaluation criteria of lands withdrawn from agricultural turnover due to radioactive contamination

2020 ◽  
pp. 23-27
Author(s):  
Olga Merzlova
Keyword(s):  
Economic Evaluation ◽  
Radioactive Contamination ◽  
Chernobyl Accident ◽  
Evaluation Criteria ◽  
Contaminated Land ◽  
Degradation Processes ◽  
Agricultural Use ◽  
Land Clearance

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. Due to the positive dynamics of the radiation situation, the issue of land return becomes relevant. However, in the period of exclusion of these lands the land clearance degradation processes were developing. The second part of the article is devoted to the issue of economic evaluation of the expediency of land return and the mutual coordination of the results of separate stages of complex ecological and economic evaluation. The research was carried out in Mogilev branch Institute of radiology (Republic of Belarus).

Performance of seven highway construction contracting methods analyzed by project size

2018 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
Yuanxin ZHANG ◽  
Abdol CHINI ◽  
R. Edward MINCHIN Jr. ◽  
Lourdes PTSCHELINZEW ◽  
Dev SHAH
Keyword(s):  
Highway Construction ◽  
Project Size ◽  
Construction Contracting
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