Prospects for Construction of Monolithic Cement-Concrete Transport Infrastructure Facilities in the Siberian Region

2021 ◽  
pp. 322-328
Author(s):  
I. G. Endzhievskaya ◽  
A. A. Yakshina ◽  
R. T. Emelyanov ◽  
M. L. Berseneva
Keyword(s):  
Transport Infrastructure ◽  
Cement Concrete ◽  
Siberian Region

E-Market of State Purchases in Russia

2005 ◽  
pp. 121-130 ◽  
Author(s):  
V. Ryabtsun
Keyword(s):  
Electronic State ◽  
Legal Basis ◽  
Siberian Region ◽  
Federal Target Program ◽  
Target Program

Legal basis and development of systems of electronic state purchases in Russia with special attention to the federal target program "Electronic Russia (2002-2010)" are considered in the article. The level of development of such systems is examined within the case of their functioning in the Ural-Siberian region. The results of the work of state purchases e-market in Novosibirsk and Chelyabinsk are presented.

GGBS as Partial Replacement of OPC in Cement Concrete – An Experimental Study

2012 ◽  
Vol 2 (11) ◽  
pp. 189-191 ◽  
Author(s):  
Yogendra O Patil ◽  
◽  
P.N.Patil P.N.Patil ◽  
Dr. Arun Kumar Dwivedi
Keyword(s):  
Experimental Study ◽  
Partial Replacement ◽  
Cement Concrete

Manufacture of full-scale geopolymer cement concrete components: A case study to highlight opportunities and challenges

PCI Journal ◽  
2015 ◽  
Vol 60 (6) ◽  
pp. 39-50 ◽  
Author(s):  
Brett Tempest ◽  
Clarke Snell ◽  
Thomas Gentry ◽  
Maria Trejo ◽  
Keith Isherwood
Keyword(s):  
Full Scale ◽  
Cement Concrete ◽  
Geopolymer Cement

Development of a Capacitor Probe to Detect Subsurface Deterioration in Concrete

1997 ◽  
Vol 503 ◽  
Author(s):  
B. K. Diefenderfer ◽  
I. L. Al-Qadi ◽  
J. J. Yoho ◽  
S. M. Riad ◽  
A. Loulizi
Keyword(s):  
Dielectric Constant ◽  
Portland Cement ◽  
Electromagnetic Waves ◽  
Low Cost ◽  
Complex Dielectric Constant ◽  
Life Cycle Costs ◽  
Parallel Plates ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Set Up

ABSTRACTPortland cement concrete (PCC) structures deteriorate with age and need to be maintained or replaced. Early detection of deterioration in PCC (e.g., alkali-silica reaction, freeze/thaw damage, or chloride presence) can lead to significant reductions in maintenance costs. However, it is often too late to perform low-cost preventative maintenance by the time deterioration becomes evident. By developing techniques that would enable civil engineers to evaluate PCC structures and detect deterioration at early stages (without causing further damage), optimization of life-cycle costs of the constructed facility and minimization of disturbance to the facility users can be achieved.Nondestructive evaluation (NDE) methods are potentially one of the most useful techniques ever developed for assessing constructed facilities. They are noninvasive and can be performed rapidly. Portland cement concrete can be nondestructively evaluated by electrically characterizing its complex dielectric constant. The real part of the dielectric constant depicts the velocity of electromagnetic waves in PCC. The imaginary part, termed the “loss factor,” describes the conductivity of PCC and the attenuation of electromagnetic waves.Dielectric properties of PCC have been investigated in a laboratory setting using a parallel plate capacitor operating in the frequency range of 0.1 to 40.1MIHz. This capacitor set-up consists of two horizontal-parallel plates with an adjustable separation for insertion of a dielectric specimen (PCC). While useful in research, this approach is not practical for field implementation. A new capacitor probe has been developed which consists of two plates, located within the same horizontal plane, for placement upon the specimen to be tested. Preliminary results show that this technique is feasible and results are promising; further testing and evaluation is currently underway.

Transport infrastructure of the Rostov Oblast: Problems and prospects for development in the context of national projects implementation

2020 ◽  
Vol 19 (6) ◽  
pp. 1015-1034
Author(s):  
O.Yu. Patrakeeva
Keyword(s):  
Time Series Data ◽  
Mutual Influence ◽  
Rostov Oblast ◽  
Transport Infrastructure ◽  
Series Data ◽  
Cointegration Tests ◽  
Level Of Economic Development ◽  
Short Run ◽  
The Government ◽  
The Impact

Subject. The paper considers national projects in the field of transport infrastructure, i.e. Safe and High-quality Roads and Comprehensive Plan for Modernization and Expansion of Trunk Infrastructure, and the specifics of their implementation in the Rostov Oblast. Objectives. The aim is to conduct a statistical assessment of the impact of transport infrastructure on the region’s economic performance and define prospects for and risks of the implementation of national infrastructure projects in conditions of a shrinking economy. Methods. I use available statistics and apply methods and approaches with time-series data, namely stationarity and cointegration tests, vector autoregression models. Results. The level of economic development has an impact on transport infrastructure in the short run. However, the mutual influence has not been statistically confirmed. The paper revealed that investments in the sphere of transport reduce risk of accidents on the roads of the Rostov Oblast. Improving the quality of roads with high traffic flow by reducing investments in the maintenance of subsidiary roads enables to decrease accident rate on the whole. Conclusions. In conditions of economy shrinking caused by the complex epidemiological situation and measures aimed at minimizing the spread of coronavirus, it is crucial to create a solid foundation for further economic recovery. At the government level, it is decided to continue implementing national projects as significant tools for recovery growth.

A financial mechanism to develop transport infrastructure based on concession agreements

2019 ◽  
Vol 25 (10) ◽  
pp. 2402-2413
Author(s):  
A.N. Savrukov ◽  
◽  
N.T. Savrukov ◽  
E.A. Kozlovskaya ◽  
◽  
...  
Keyword(s):  
Transport Infrastructure ◽  
Financial Mechanism

EXPERIMENTAL STUDIES ON RESPONSE OF BIAXIAL GEO-GRID PROPORTIONED CEMENT CONCRETE

2018 ◽  
Vol 8 (2) ◽  
pp. 15 ◽  
Author(s):  
K.S. SREEKESHAVA ◽  
KUMAR A.S.ARUN ◽  
◽  
Keyword(s):  
Experimental Studies ◽  
Cement Concrete

Mechanical and Durability Characteristics of Wollastonite Based Cement Concrete

2017 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Kumar J. Bharath ◽  
Ramujee K. ◽  
◽  
Keyword(s):  
Cement Concrete
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